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Статті в журналах з теми "CO₂ valorization"

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Автор: Grafiati
Опубліковано: 8 червня 2024

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1

Ding, Pan, Jie Zhang, Na Han, Yuan Zhou, Lin Jia, and Yanguang Li. "Simultaneous power generation and CO2 valorization by aqueous Al–CO2 batteries using nanostructured Bi2S3 as the cathode electrocatalyst." Journal of Materials Chemistry A 8, no. 25 (2020): 12385–90. http://dx.doi.org/10.1039/d0ta03761c.

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2

Mengers, H. G., N. Guntermann, G. Franciò, W. Leitner, and L. M. Blank. "In situ CO 2 valorization: Chemocatalysis meets biocatalysis." Chemie Ingenieur Technik 92, no. 9 (August 28, 2020): 1272. http://dx.doi.org/10.1002/cite.202055062.

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3

Kanari, N., N. Menad, F. Diot, E. Allain, and J. Yvon. "Phosphate valorization by dry chlorination route." Journal of Mining and Metallurgy, Section B: Metallurgy 52, no. 1 (2016): 17–24. http://dx.doi.org/10.2298/jmmb150304027k.

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This work deals with the extraction of phosphorus chlorinated compounds from phosphate materials using chlorination with gaseous chlorine. An industrial sample of dicalcium phosphate dihydrate, after transformation into calcium pyrophosphate (Ca2P2O7), is subjected to reactions with Cl2+CO+N2 and Cl2+C+N2 at temperatures ranging from 625 to 950?C using boat experiments. Gathering results of the thermodynamic predictions and TG/DT analysis with those of SEM and XRD examinations of the chlorinated residues allowed the interpretation of phenomena and reactions mechanism occurring during the calcium pyrophosphate carbochlorination. Reaction rate of Ca2P2O7 by Cl2+CO+N2 at 950?C is slowed down due to the formation of a CaCl2 liquid layer acting as a barrier for the diffusion of the reactive gases and further reaction progress. While, the carbochlorination with Cl2+C+N2 led to almost full chlorination of Ca2P2O7 at 750?C and the process proceeds with an apparent activation energy of about 104 kJ/mol between 625 and 750?C. Carbochlorination technique can be considered as an alternative and selective route for the valorization of low grade phosphates and for the phosphorus extraction from its bearing materials.
4

Faleschini, Flora, Mariano Angelo Zanini, Katya Brunelli, and Carlo Pellegrino. "Valorization of co-combustion fly ash in concrete production." Materials & Design 85 (November 2015): 687–94. http://dx.doi.org/10.1016/j.matdes.2015.07.079.

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5

Igual, Marta, Maria Simona Chiş, Adriana Păucean, Dan Cristian Vodnar, Sevastița Muste, Simona Man, Javier Martínez-Monzó, and Purificación García-Segovia. "Valorization of Rose Hip (Rosa canina) Puree Co-Product in Enriched Corn Extrudates." Foods 10, no. 11 (November 12, 2021): 2787. http://dx.doi.org/10.3390/foods10112787.

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Serious issues and challenges of the world’s population are represented by dwindling natural food resources and the scale-up of sustainable food manufacturing. Therefore, the valorization of co-products from the food industry represents new methods for food development. The principal goal of the study was to capitalize rose hip (Rosa canina) co-product powder in extrudates, highlighting its influence on extrusion parameters, physicochemical, and nutritional characteristics. The water absorption index, swelling index, and hygroscopicity increased with the rose hip co-product addition. Furthermore, water solubility index, expansion index, porosity, image parameters (area and perimeter) of the extrudates decreased. Lycopene, β-Carotene, Zea-esters, and lutein were the main carotenoids identified in the extrudates; whereas Catechin, Di-gallic acid, Procyanidin dimmer 1, Procyanidin dimmer 2, and Isorhamnetin-glucuronide were the main flavonoids. Strong Pearson correlations were identified between carotenoids, total flavonoids, vitamin C, total folate, and antioxidant activity. Valorization of the Rosa canina powder co-product led to value-added products—corn extrudates—rich in bioactive compounds.
6

Xi, Zhixiang, Bingjie Zhou, Yue Yu, Binbo Jiang, Zuwei Liao, Jingdai Wang, Zhengliang Huang, Yao Yang, Jingyuan Sun, and Yongrong Yang. "Enhancing low-temperature methane conversion on Zn/ZSM-5 in the presence of methanol by regulating the methanol-to-aromatics reaction pathway." Catalysis Science & Technology 10, no. 18 (2020): 6161–72. http://dx.doi.org/10.1039/d0cy00449a.

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7

Ferretti, Francesco, Muhammad Sharif, Sarim Dastgir, Fabio Ragaini, Ralf Jackstell та Matthias Beller. "Selective palladium-catalysed synthesis of diesters: alkoxycarbonylation of a CO2-butadiene derived δ-lactone". Green Chemistry 19, № 15 (2017): 3542–48. http://dx.doi.org/10.1039/c7gc01366c.

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8

Shen, Yafei, Dachao Ma, and Xinlei Ge. "CO2-looping in biomass pyrolysis or gasification." Sustainable Energy & Fuels 1, no. 8 (2017): 1700–1729. http://dx.doi.org/10.1039/c7se00279c.

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This paper summarizes the thermochemical conversion of biomass using CO2as a reaction medium. In the integrated valorization of biomass by pyrolysis or gasification, CO2can play a vital role in each stage, including biomass pyrolysis, biomass/biochar gasification, biochar activation, and tar cracking/reforming.
9

Ticali, Pierfrancesco, Davide Salusso, Rafia Ahmad, Christian Ahoba-Sam, Adrian Ramirez, Genrikh Shterk, Kirill A. Lomachenko, et al. "CO2 hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO2/zeolite catalysts." Catalysis Science & Technology 11, no. 4 (2021): 1249–68. http://dx.doi.org/10.1039/d0cy01550d.

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10

Trisunaryanti, Wega, Triyono Triyono, Elizabeth Selia Nandini, and Endah Suarsih. "Biomass Valorization to Chemicals over Cobalt Nanoparticles on SBA-15." Bulletin of Chemical Reaction Engineering & Catalysis 17, no. 3 (August 3, 2022): 533–41. http://dx.doi.org/10.9767/bcrec.17.3.15160.533-541.

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A series of heterogeneous catalysts based on cobalt supported on SBA-15 were prepared through wet impregnation and co-impregnation assisted by ethylene glycol (EG) methods. The cobalt oxide catalysts generated after the drying and calcination process were denoted as CoO/SBA-15w and CoO/SBA-15c for a wet- and co-impregnation method, respectively. Subsequent to the reduction process, the reduced cobalt catalysts were obtained and denoted as Co/SBA-15w and Co/SBA-15c. The TEM images revealed the catalysts prepared through these methods show very clear distinctions that the catalyst prepared by wet impregnation shows large aggregates of cobalt particles on the external surface of SBA-15 due to their inability to enter the channels. The catalysts were evaluated on the hydrocracking of pyrolyzed -cellulose as a biomass model. The results showed that the reduced cobalt-based catalysts are having higher conversion value and selectivity towards the 2-furancarboxaldehyde reached ca. 20%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
11

Moulay Omar, Hassan, Rachid Zentar, Mustapha Akacem, Belkacem Mekerta, and Mohamed Mouli. "Co-valorization of Tuff and Sandy Residues in Roads Construction." Civil Engineering Journal 8, no. 5 (May 1, 2022): 1029–45. http://dx.doi.org/10.28991/cej-2022-08-05-013.

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In recent years, the use of local materials in pavements has developed to compensate for the lack of normalized standard materials in the Algerian arid regions. The main objective of this research is to assess the co-valorization of two local materials to design a road material with satisfactory characteristics. In this context, the use of tuff in combination with sand residues is explored. The evolution of the characteristics of tuffs mixed with sand residues according to percentages ranging from 0% to 50% is highlighted. The used materials were subjected to physical and mechanical tests. Then, a series of mechanical tests were carried out on mixed samples compacted at the optimal characteristics that were deduced from the modified Proctor test. The obtained results highlight the existence of an optimal formulation composed of 70% tuff and 30% sandy residues, which presented an unconfined compressive strength (UCS) of 5.16 MPs and a CBR index (CBRI) of 42.6 %. Moreover, the results show clearly the evolution of the measured characteristics with time (drying) and without the addition of binders. The possibility of the use of studied mixtures in pavements has been verified regarding the recommendations in use (CTTP 2001) and the Saharan Road Technique (SRT). Doi: 10.28991/CEJ-2022-08-05-013 Full Text: PDF
12

Konstantinovic, Sandra, Bojana Danilovic, Jovan Ciric, Slavica Ilic, Dragisa Savic, and Vlada Veljkovic. "Valorization of crude glycerol from biodiesel production." Chemical Industry and Chemical Engineering Quarterly 22, no. 4 (2016): 461–89. http://dx.doi.org/10.2298/ciceq160303019k.

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The increased production of biodiesel as an alternative fuel involves the simultaneous growth in production of crude glycerol as its main by-product. Therefore, the feasibility and sustainability of biodiesel production requires the effective utilization of crude glycerol. This review describes various uses of crude glycerol as a potential green solvent for chemical reactions, a starting raw material for chemical and biochemical conversions into value-added chemicals, a substrate or co-substrate in microbial fermentations for synthesis of valuable chemicals and production of biogas and biohydrogen as well as a feedstuff for animal feed. A special attention is paid to various uses of crude glycerol in biodiesel production.
13

El-Salamony, Radwa A., Ahmed S. Al-Fatesh, Kenit Acharya, Abdulaziz A. M. Abahussain, Abdulaziz Bagabas, Nadavala Siva Kumar, Ahmed A. Ibrahim, Wasim Ullah Khan, and Rawesh Kumar. "Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts." Catalysts 13, no. 1 (January 4, 2023): 113. http://dx.doi.org/10.3390/catal13010113.

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Samarium oxide (Sm2O3) is a versatile surface for CO2 and H2 interaction and conversion. Samarium oxide-supported Ni, samarium oxide-supported Co-Ni, and samarium oxide-supported Ru-Ni catalysts were tested for CO2 methanation and were characterized by X-ray diffraction, nitrogen physisorption, infrared spectroscopy, H2-temperature programmed reduction, and X-ray photoelectron spectroscopy. Limited H2 dissociation and widely available surface carbonate and formate species over 20 wt.% Ni, dispersed over Sm2O3, resulted in ~98% CH4 selectivity. The low selectivity for CO could be due to the reforming reaction between CH4 (methanation product) and CO2. Co-impregnation of cobalt with nickel over Sm2O3 had high surface adsorbed oxygen and higher CO selectivity. On the other hand, co-impregnation of ruthenium and nickel over Sm2O3 led to more than one catalytic active site, carbonate species, lack of formate species, and 94% CH4 selectivity. It indicated the following route of CH4 synthesis over Ru-Ni/Sm2O3; carbonate → unstable formate → CO → CH4.
14

Akyürek, Zuhal. "Sustainable Valorization of Animal Manure and Recycled Polyester: Co-pyrolysis Synergy." Sustainability 11, no. 8 (April 16, 2019): 2280. http://dx.doi.org/10.3390/su11082280.

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In this study sustainable valorization of cattle manure, recycled polyester, and their blend (1:1 wt.%) were examined by the thermogravimetric analysis (TGA) method. Pyrolysis tests were performed at 10, 30, and 50 °C/min heating rate from room temperature to 1000 °C under a nitrogen environment with a flow of 100 cm3/min. Kinetics of decomposition were analyzed by using Flynn–Wall–Ozawa (FWO) method. Based on activation energies and conversion points, a single region was established for recycled polyester while three regions of pyrolysis were obtained for cattle manure and their blend. Comparison between experimental and theoretical profiles indicated synergistic interactions during co-pyrolysis in the high temperature region. The apparent activation energies calculated by FWO method for cattle manure, recycled polyester. and their blend were 194.62, 254.22 and 227.21 kJ/mol, respectively. Kinetics and thermodynamic parameters, including E, ΔH, ΔG, and ΔS, have shown that cattle manure and recycled polyester blend is a remarkable feedstock for bioenergy.
15

Coimbra, R. N., S. Paniagua, C. Escapa, L. F. Calvo, and M. Otero. "Thermal Valorization of Pulp Mill Sludge by Co-processing with Coal." Waste and Biomass Valorization 7, no. 4 (March 10, 2016): 995–1006. http://dx.doi.org/10.1007/s12649-016-9524-2.

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16

Vandeponseele, Alexandre, Micheline Draye, Christine Piot, and Gregory Chatel. "Subcritical water and supercritical carbon dioxide: efficient and selective eco-compatible solvents for coffee and coffee by-products valorization." Green Chemistry 22, no. 24 (2020): 8544–71. http://dx.doi.org/10.1039/d0gc03146a.

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This review aims to establish the state of the art of the existing literature on the valorization of coffee and coffee by-products such as spent coffee grounds through the use of subcritical water (SCW) and supercritical carbon dioxide (SC-CO2).
17

Holewinski, Adam. "Electro-Oxidative Valorization of Biomass-Derived Furanics." ECS Meeting Abstracts MA2023-02, no. 27 (December 22, 2023): 1428. http://dx.doi.org/10.1149/ma2023-02271428mtgabs.

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Electrocatalysis poses many potential advantages for distributed scale biomass valorization. Furanic biomass derivatives such as furfural and 5-hydroxymethylfurfural (HMF) can provide access to a number of value-added chemicals by partial oxidation, including furoic acid, maleic acid, and 2,5-furandicarboxylic acid (FDCA). Here, we have utilized differential reactor studies with online electrochemical mass spectrometry (OLEMS), as well as in-situ attenuated total reflectance surface enhanced infrared reflection absorption spectroscopy (ATR-SEIRAS), to probe these reaction pathways on various metal electrodes. Experimental insights are combined with computational results to piece together plausible mechanisms. We find tradeoffs between decarbonylation activity and self-assembly of furoate intermediates on late transition metals to be critical selectivity-determining and rate-determining process. We also characterize oxidative dehydrogenation paths for furanic aldehydes, which co-produce (anodic) hydrogen gas. Strategies for improved catalyst design will be discussed.
18

Liu, Qingsong, Xiangci Xue, Zengqing Sun, Xiaoxian Huang, Min Gan, Zhiyun Ji, Xuling Chen, and Xiaohui Fan. "Efficient Co-Valorization of Phosphogypsum and Red Mud for Synthesis of Alkali-Activated Materials." Materials 16, no. 9 (May 5, 2023): 3541. http://dx.doi.org/10.3390/ma16093541.

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Phosphogypsum and red mud are bulk industrial solid wastes that trigger local environmental problems. In the present investigation, an efficient valorization process was developed through which phosphogypsum and red mud can be transformed into a precursor for the synthesis of high-strength, alkali-activated materials with a seawater-bearing sodium silicate solution as the alkaline activator. The effects of the activator modulus and liquid-to-solid ratio on the strength evolution of the synthesized AAMs as well as the microstructure and chemistry of the reaction products were investigated. The results showed that mineral reconstruction between PG and RM took place during calcination at 950 °C, forming ye’elimite, anhydrite and gehlenite, which then took part in the alkali-activation process and generated thenardite and C-A-S-H gel. The mechanical properties of the synthesized AAMs, ranging from 12.9 MPa to 40.6 MPa, were determined with the activator modulus and liquid-to-solid ratio. Results from the present investigation contributed to the facile and efficient valorization of phosphogypsum and red mud into cementitious construction materials.
19

Sarno, Maria, Eleonora Ponticorvo, Stefano Piotto, Anna Maria Nardiello, Salvatore De Pasquale, and Nicola Funicello. "AuAg/ZnO nanocatalyst for CO2 valorization and H2 and CO electrochemical production." Journal of CO2 Utilization 39 (July 2020): 101179. http://dx.doi.org/10.1016/j.jcou.2020.101179.

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20

Serrano, Antonio, José A. Siles, Arturo F. Chica, and M. Ángeles Martín. "Agri-food waste valorization through anaerobic co-digestion: fish and strawberry residues." Journal of Cleaner Production 54 (September 2013): 125–32. http://dx.doi.org/10.1016/j.jclepro.2013.05.002.

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21

Takalkar, Gorakshnath, and Rahul R. Bhosale. "Investigation of Zr‐doped ceria for solar thermochemical valorization of CO 2." International Journal of Energy Research 44, no. 15 (February 3, 2020): 12284–94. http://dx.doi.org/10.1002/er.5205.

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22

Kumar, Prasun, and Beom Soo Kim. "Valorization of polyhydroxyalkanoates production process by co-synthesis of value-added products." Bioresource Technology 269 (December 2018): 544–56. http://dx.doi.org/10.1016/j.biortech.2018.08.120.

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23

Mansouri, Djallel, Anne Landreau, Thomas Michel, Clément De Saint Jores, Bienvenue Razafimandimby, Marie Kempf, Stéphane Azoulay, Nicolas Papaiconomou, and Xavier Fernandez. "Commiphora wildii Merxm. Essential Oil: Natural Heptane Source and Co-Product Valorization." Molecules 28, no. 2 (January 16, 2023): 891. http://dx.doi.org/10.3390/molecules28020891.

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As an alternative to fossil volatile hydrocarbon solvents used nowadays in perfumery, investigation on essential oil of Commiphora wildii Merxm. oleo gum resin as a source of heptane is reported here. Heptane, representing up to 30 wt-% of this oleo gum resin, was successfully isolated from the C. wildii essential oil, using an innovative double distillation process. Isolated heptane was then used as a solvent in order to extract some noble plants of perfumery. It was found that extracts obtained with this solvent were more promising in terms of sensory analysis than those obtained from fossil-based heptane. In addition, in order to valorize the essential oil depleted from heptane, chemical composition of this oil was found to obtain, and potential biological activity properties were studied. A total of 172 different compounds were identified by GC-MS in the remaining oil. In vitro tests—including hyaluronidase, tyrosinase, antioxidant, elastase and lipoxygenase, as well as inhibitory tests against two yeasts and 21 bacterial strains commonly found on the skin—were carried out. Overall, bioassays results suggest this heptane-depleted essential oil is a promising active ingredient for cosmetic applications.
24

Vasilakis, Gabriel, Evangelos-Markos Rigos, Nikos Giannakis, Panagiota Diamantopoulou, and Seraphim Papanikolaou. "Spent Mushroom Substrate Hydrolysis and Utilization as Potential Alternative Feedstock for Anaerobic Co-Digestion." Microorganisms 11, no. 2 (February 20, 2023): 532. http://dx.doi.org/10.3390/microorganisms11020532.

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Valorization of lignocellulosic biomass, such as Spent Mushroom Substrate (SMS), as an alternative substrate for biogas production could meet the increasing demand for energy. In view of this, the present study aimed at the biotechnological valorization of SMS for biogas production. In the first part of the study, two SMS chemical pretreatment processes were investigated and subsequently combined with thermal treatment of the mentioned waste streams. The acidic chemical hydrolysate derived from the hydrothermal treatment, which yielded in the highest concentration of free sugars (≈36 g/100 g dry SMS, hydrolysis yield ≈75% w/w of holocellulose), was used as a potential feedstock for biomethane production in a laboratory bench-scale improvised digester, and 52 L biogas/kg of volatile solids (VS) containing 65% methane were produced in a 15-day trial of anaerobic digestion. As regards the alkaline hydrolysate, it was like a pulp due to the lignocellulosic matrix disruption, without releasing additional sugars, and the biogas production was delayed for several days. The biogas yield value was 37 L/kg VS, and the methane content was 62%. Based on these results, it can be concluded that SMS can be valorized as an alternative medium employed for anaerobic digestion when pretreated with both chemical and hydrothermal hydrolysis.
25

Liu, Xueyan, Meng Ye, Shuping Zhang, Guocheng Huang, Chuanhao Li, Jiaguo Yu, Po Keung Wong, and Shengwei Liu. "Enhanced photocatalytic CO2 valorization over TiO2 hollow microspheres by synergetic surface tailoring and Au decoration." Journal of Materials Chemistry A 6, no. 47 (2018): 24245–55. http://dx.doi.org/10.1039/c8ta09661a.

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26

Dey, Saptarshi, Arghya Bhattacharya, Pushpendar Kumar, and Anushree Malik. "High-rate CO2 sequestration using a novel venturi integrated photobioreactor and subsequent valorization to microalgal lipids." Green Chemistry 22, no. 22 (2020): 7962–73. http://dx.doi.org/10.1039/d0gc02552f.

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A novel microbubble assisted photobioreactor has been reported for high-rate online CO2 capture and co-optimized for application in enhanced microalgal growth, CO2 bio-fixation and increased production of microalgal lipids for 4th generation biofuels.
27

Wolfensberger, Wolf. "A Brief Overview of Social Role Valorization." Mental Retardation 38, no. 2 (April 2000): 105–23. http://dx.doi.org/10.1352/0047-6765(2000)038<0105:aboosr>2.0.co;2.

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28

Wolfensberger, Wolf. "Social Role Valorization and, or Versus, “Empowerment”." Mental Retardation 40, no. 3 (June 2002): 252–58. http://dx.doi.org/10.1352/0047-6765(2002)040<0252:srvaov>2.0.co;2.

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29

Lima, Simone Kelly Rodrigues, Alessandra Durazzo, Massimo Lucarini, João José Alves de Oliveira, Robson Alves da Silva, and Daniel Dias Rufino Arcanjo. "Valorization of Fruit Co-Product Flours for Human Nutrition: Challenges, Applications, and Perspectives." Sustainability 15, no. 18 (September 13, 2023): 13665. http://dx.doi.org/10.3390/su151813665.

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The fruit agro-industry is one of the sectors that stand out both in production and in the volume of losses along the supply chains, which has generated a strong concern from the nutritional, economic, social, and environmental points of view. This study is aimed at understanding the updated scenario of the conversion of fruit residues into value-added co-products, its main challenges, applications, and perspectives. For this, a literature review was conducted through Scielo, PubMed, Google Scholar, and ScienceDirect databases. The advanced search covered the period from 2018 to 2022. The evaluation of the articles showed that the drying process is an important step to obtain flours from fruit co-products with characteristics that can provide longer shelf life, practicality, and versatility of use, demonstrating great potential for inclusion in various food preparations; although difficulties persist around the technological characteristics of this raw material, they can confer a nutritional increase, in addition to the possibility of additional health benefits due to the presence of bioactive compounds and fibers inherent in these products. Indeed, although there is a long way to go in studies with co-products derived from residual fractions of fruits, strategies such as these contribute to the better management of losses along the agri-food chains while providing greater food and nutrition security for the global population on the path to sustainability.
30

Robazza, Alberto, Claudia Welter, Christin Kubisch, Flávio César Freire Baleeiro, Katrin Ochsenreither, and Anke Neumann. "Co-Fermenting Pyrolysis Aqueous Condensate and Pyrolysis Syngas with Anaerobic Microbial Communities Enables L-Malate Production in a Secondary Fermentative Stage." Fermentation 8, no. 10 (October 4, 2022): 512. http://dx.doi.org/10.3390/fermentation8100512.

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The pyrolytic conversion of lignocellulosic biomass into fuels and chemicals is a promising option for the valorization of agricultural and forestry residues. However, technological developments are still needed to maximize product recovery and carbon fixation of the pyrolysis process. The pyrolysis aqueous condensate (PAC), a pyrolysis by-product, has a high water content and is highly toxic, hampering its use. The anaerobic digestion of PAC from different biomasses has been proven a viable technology for PAC valorization and detoxification, but its toxicity limits the methanogenic potential. Alternatively, methanation or VFA production from syngas by anaerobic mixed cultures are technologies of scientific interest. This study investigates the potential of a two-stage process to convert the carbon and energy in syngas and PAC into L-malate. PAC and syngas were co-fermented by two mixed cultures at 37 and 55 °C, identifying kinetic inhibitions and the effects of increasing PAC concentrations on the product pool. The media from selected mixed culture fermentations were then inoculated with Aspergillus oryzae for L-malate production. The results show that mixed cultures can perform simultaneous syngas fermentation and PAC detoxification. While PAC concentrations above 2% completely inhibited methanogenesis, CO consumption was inhibited at PAC concentrations above 5%, regardless of the temperature. In fermentations where PAC inhibited methanation, the mixed cultures channelled the carbon and electrons from syngas and PAC to volatile fatty acids or acetate/H2 production, depending on the incubation temperature. Substantial detoxification of PAC was observed under PAC concentrations up to 10% independently of the rates of syngas metabolism. PAC detoxification enabled the further valorization of the acetate produced via syngas and PAC fermentations into L-malate, achieving yields up to 0.17 mM/mM. These results are promising for the development of an integrated process that simultaneously detoxifies and recovers value from gaseous and aqueous waste streams originating from pyrolysis.
31

Lee, Younghyun, Soosan Kim, and Jechan Lee. "Co-pyrolysis for the valorization of food waste and oriental herbal medicine byproduct." Journal of Analytical and Applied Pyrolysis 154 (March 2021): 105016. http://dx.doi.org/10.1016/j.jaap.2021.105016.

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32

Souza Filho, Pedro F., Akram Zamani, and Jorge A. Ferreira. "Valorization of Wheat Byproducts for the Co-Production of Packaging Material and Enzymes." Energies 13, no. 6 (March 11, 2020): 1300. http://dx.doi.org/10.3390/en13061300.

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Waste management systems are overloaded with huge streams of plastic, a large part of this being originated from packaging. Additionally, the production of wheat, one of the most cultivated crops in the world, generates low-value lignocellulosic materials, which are mostly discarded. In this study, the wheat lignocellulosic byproducts straw and bran were used for the co-production of enzymes and bio-based materials with possible application as packaging via the compression molding method. The mechanical properties of the films were studied based on the effects of the removal of lignin by alkali and biological pretreatment, the growth of filamentous fungi, the size of the particles, and the enzyme recovery. Generally, the straw films were stiffer than the bran ones, but the highest Young’s modulus was obtained for the biologically pretreated bran (1074 MPa). The addition of a step to recover the fungal cellulases produced during the cultivation had no statistical effect on the mechanical properties of the films. Moreover, alkali and biological pretreatments improved the anaerobic biodegradability of the straw films. Thus, the wheat bran and straw can be used for the co-production of enzymes, materials, and biogas, potentially changing how wheat and packaging wastes are managed.
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Yuan, Lan, Ming‐Yu Qi, Zi‐Rong Tang, and Yi‐Jun Xu. "Coupling Strategy for CO 2 Valorization Integrated with Organic Synthesis by Heterogeneous Photocatalysis." Angewandte Chemie International Edition 60, no. 39 (May 14, 2021): 21150–72. http://dx.doi.org/10.1002/anie.202101667.

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Yuan, Lan, Ming‐Yu Qi, Zi‐Rong Tang, and Yi‐Jun Xu. "Coupling Strategy for CO 2 Valorization Integrated with Organic Synthesis by Heterogeneous Photocatalysis." Angewandte Chemie 133, no. 39 (May 14, 2021): 21320–42. http://dx.doi.org/10.1002/ange.202101667.

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35

Jack, Joshua, Jonathan Lo, Bryon Donohue, Pin-Ching Maness, and Zhiyong Jason Ren. "High rate CO2 valorization to organics via CO mediated silica nanoparticle enhanced fermentation." Applied Energy 279 (December 2020): 115725. http://dx.doi.org/10.1016/j.apenergy.2020.115725.

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36

Komnitsas, Kostas. "Co-valorization of marine sediments and construction & demolition wastes through alkali activation." Journal of Environmental Chemical Engineering 4, no. 4 (December 2016): 4661–69. http://dx.doi.org/10.1016/j.jece.2016.11.003.

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37

Soares, Micaela A. R., Margarida J. Quina, and Rosa Quinta-Ferreira. "Influence of N-rich material in valorization of industrial eggshell by co-composting." Environmental Technology 37, no. 21 (April 24, 2016): 2773–85. http://dx.doi.org/10.1080/09593330.2016.1164251.

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38

Rashidi, Nor Adilla, and Suzana Yusup. "Co-valorization of delayed petroleum coke – palm kernel shell for activated carbon production." Journal of Hazardous Materials 403 (February 2021): 123876. http://dx.doi.org/10.1016/j.jhazmat.2020.123876.

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39

Tarifa, P., M. González-Castaño, F. Cazaña, A. Monzón, and H. Arellano-García. "Hydrophobic RWGS catalysts: Valorization of CO2-rich streams in presence of CO/H2O." Catalysis Today 423 (November 2023): 114276. http://dx.doi.org/10.1016/j.cattod.2023.114276.

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40

Leandro, Tânia, Marco Teles, Joana S. Gomes-Dias, Mafalda Marques, Cristina M. R. Rocha, M. Manuela R. da Fonseca, and M. Teresa Cesário. "Ulva rigida Valorization into Poly(3-hydroxybutyrate), Organic Acids and Functional Ingredients." Marine Drugs 21, no. 10 (October 14, 2023): 537. http://dx.doi.org/10.3390/md21100537.

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Halomonas elongata 1H9T is a moderate halophilic strain able to produce poly(3-hydroxybutyrate) (P(3HB)), a biodegradable plastic, and gluconic acid, a valuable organic acid with wide industrial applications. In this work, the green alga Ulva rigida was used as platform to produce cultivation substrates for microbial conversion as well as functional ingredients, targeting its full valorization. The liquor obtained by autohydrolysis presented the highest concentration of oligosaccharides and protein, being an interesting feedstock to produce functional ingredients. The acid and/or enzymatic hydrolysis liquors are adequate as substrates for microbial processes. Shake flask assays with H. elongata revealed that the N-rich liquor produced after acidic treatment was the best suited for cell growth while the N-poor liquor produced by the enzymatic treatment of acid-pretreated algae residues produced the highest P(3HB) titers of 4.4 g/L. These hydrolysates were used in fed-batch cultivations as carbon and protein sources for the co-production of gluconic acid and polymer achieving titers of 123.2 g/L and 7.2 g/L, respectively. Besides gluconic acid, the Krebs cycle intermediate 2-oxoglutaric acid, also called alpha-ketoglutaric acid (KGA), was produced. Therefore, the co-production of P(3HB) and acids may be of considerable interest as an algal biorefinery valorization strategy.
41

Pietroni, E. "VIRTUAL MUSEUMS FOR LANDSCAPE VALORIZATION AND COMMUNICATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W5 (August 21, 2017): 575–82. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w5-575-2017.

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Research in the domain of landscape virtual reconstructions has been mainly focused on digitization and recording inside GIS systems, or real time visualization, paying a minor attention to the development of a methodological approach for the landscape narration, combing different registers, conceptual, emotional incitements and, thus, able to arouse in the public a feeling of emotional “sensing” and self- identification. The landscape reflects also the human activities in the territory and the communities’ cultural patterns, their sense of “belonging”. In a virtual museum of landscapes, the multidisciplinary approach, the multiplication of perspectives and voices, storytelling, acquire primary importance. A Virtual Museum of landscapes should integrate both holistic and delimited visions. The holistic vision requires a diachronic approach, including both present and past phases of life. On the other side, delimited, or “monographic”, representations are useful to go deeper into specific and exemplar stories, regarding specific groups of people.<br><br> Beside, the emergence of new social media enhancing cultural interactions among people induce the creation of specific social platforms for Cultural Heritage for the active participation of a large number of stakeholders. Co-creation scenarios and tools can be particularly promising. <i>Aton</i> is an example of <i>front-end</i> VR social platform in the web end, for the efficient streaming of medium/large landscape, their exploration and characterization.<br><br> The <i>Tiber Valley Virtual Museum</i> is an example of sensorial cultural landscape. Starting from the acquisition of topographical data through integrated technologies, several multi-sensory scenarios have been created, inside which visitors can feel embodied and involved.
42

Manniello, Canio, Dina Statuto, Andrea Di Pasquale, Gerardo Giuratrabocchetti, and Pietro Picuno. "Planning the Flows of Residual Biomass Produced by Wineries for the Preservation of the Rural Landscape." Sustainability 12, no. 3 (January 23, 2020): 847. http://dx.doi.org/10.3390/su12030847.

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Circular economy aims to create a system that allows an optimal reuse of products and materials. According to an appropriate planning hierarchy, agricultural and agro-food co-products, by-products and wastes should be primarily employed to re-balance soil fertility, and afterwards valorized as new secondary raw materials used in the same agricultural sector or in different industrial chains (e.g., cosmetics, nutraceuticals, etc.). Finally, only at the end of this process, they could be conveyed to energy production through co-generation. In this paper, different residues generated by the wine production chain have been considered with reference to the Basilicata region (Southern Italy). These biomasses have been quantitatively assessed and qualitatively classified, in order to find the most rational and convenient solution for their valorization from a technical, economic and environmental point of view. From the spatial analysis—elaborated by implementing a Geographic Information System—some thematic maps have been obtained, which allow us to highlight the areas with the highest concentration of residues. In this way, focusing the analysis on these areas, some possible strategies for their management and valorization have been proposed, so as to restore soil fertility and contribute to the sustainable preservation of the rural landscape.
43

El-Salamony, Radwa A., Sara A. El-Sharaky, Seham A. Al-Temtamy, Ahmed M. Al-Sabagh, and Hamada M. Killa. "CO2 valorization into synthetic natural gas (SNG) using a Co–Ni bimetallic Y2O3 based catalysts." International Journal of Chemical Reactor Engineering 19, no. 6 (May 3, 2021): 571–83. http://dx.doi.org/10.1515/ijcre-2020-0163.

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Abstract Recently, because of the increasing demand for natural gas and the reduction of greenhouse gases, interests have focused on producing synthetic natural gas (SNG), which is suggested as an important future energy carrier. Hydrogenation of CO2, the so-called methanation reaction, is a suitable technique for the fixation of CO2. Nickel supported on yttrium oxide and promoted with cobalt were prepared by the wet-impregnation method respectively and characterized using SBET, XRD, FTIR, XPS, TPR, and HRTEM/EDX. CO2 hydrogenation over the Ni/Y2O3 catalyst was examined and compared with Co–Ni/Y2O3 catalysts, Co% = 10 and 15 wt/wt. The catalytic test was conducted with the use of a fixed-bed reactor under atmospheric pressure. The catalytic performance temperature was 350 °C with a supply of H2:CO2 molar ratio of 4 and a total flow rate of 200 mL/min. The CH4 yield was reached 67%, and CO2 conversion extended 48.5% with CO traces over 10Co–Ni/Y2O3 catalyst. This encourages the direct methanation reaction mechanism. However, the reaction mechanism over Ni/Y2O3 catalyst shows different behaviors rather than that over bi-metal catalysts, whereas the steam reforming of methane reaction was arisen associated with methane consumption besides increase in H2 and CO formation; at the same temperature reaction.
44

Nieto, Gema, Juana Fernández-López, José A. Pérez-Álvarez, Rocío Peñalver, Gaspar Ros-Berruezo, and Manuel Viuda-Martos. "Valorization of Citrus Co-Products: Recovery of Bioactive Compounds and Application in Meat and Meat Products." Plants 10, no. 6 (May 26, 2021): 1069. http://dx.doi.org/10.3390/plants10061069.

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Citrus fruits (orange, lemon, mandarin, and grapefruit) are one of the most extensively cultivated crops. Actually, fresh consumption far exceeds the demand and, subsequently, a great volume of the production is destined for the citrus-processing industries, which produce a huge quantity of co-products. These co-products, without proper treatment and disposal, might cause severe environmental problems. The co-products obtained from the citrus industry may be considered a very important source of high-added-value bioactive compounds that could be used in the pharmaceutical, cosmetic, and dietetic industries, and mainly in the food industry. Due to consumer demands, the food industry is exploring a new and economical source of bioactive compounds to develop novel foods with healthy properties. Thus, the aim of this review is to describe the possible benefits of citrus co-products as a source of bioactive compounds and their applications in the development of healthier meat and meat products.
45

Qurat-ul-Ain, Aisha Nazir, Sergio C. Capareda, Muhammad Shafiq, and Firdaus-e-Bareen. "Valorization of Cotton Gin Trash through Thermal and Biological Conversion for Soil Application." Sustainability 13, no. 24 (December 15, 2021): 13842. http://dx.doi.org/10.3390/su132413842.

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Cotton gin trash, the by-product of the cotton ginning industry which is produced in large quantities every year, can be utilized as feedstock for deriving high quality organic materials such as biochar, compost and co-composted derivates for improvement of soils’ key physical, chemical and biological properties. This is the first report in which cotton gin trash was both thermally and biologically converted at the same time into biochar (BC), compost (C) and co-compost (Coc), and their effects on soil properties and on plant performance were examined. In order to find the optimum rate, the products were used as soil amendments in a greenhouse experiment at 2.5 t ha−1, 5 t ha−1and 10 t ha−1 rates. All of the amendments contributed in improving the soil properties and provided agronomic benefits to plants, however plants (radish var. Cherry belle) showed significantly (p < 0.05) better growth attributes and almost a 315% increase in biomass yield observed when co-composted biochar (10 t ha−1) was applied to the soil, thus suggesting its role in compensating fertilizer application. Amendments (2.5 and 5.0 t ha−1) considerably increased plant growth parameters; however, differences between 5 and 10 t ha−1 amendments were not so significant. As a result, replenishing soil with Coc (5 t ha−1) on a regular basis can promote plant growth and improve soil qualities over time.
46

Moliner, Cristina, Dario Bove, and Elisabetta Arato. "Co-Incineration of Rice Straw-Wood Pellets: A Sustainable Strategy for the Valorisation of Rice Waste." Energies 13, no. 21 (November 3, 2020): 5750. http://dx.doi.org/10.3390/en13215750.

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Agricultural activities produce an estimated amount of 32.7 MToe/year of residues in EU countries. They are mostly disposed in landfills, incinerated without any control, or abandoned in fields, causing severe impacts on human health and environment. Rice is one of the most consumed crops worldwide with an annual production of 782 million tons according to the Food and Agriculture Organization of the United Nations database. In this context, the EU-funded project LIFE LIBERNITRATE promotes the use of renewable residual sources (i.e., rice straw) to obtain new materials with an added value. The methodology is based on the incineration of rice straw in an own-designed and constructed valorization system. Rice straw/wood pellets are burned in optimized conditions to produce a maximized quantity of ashes with high silica content. These materials will be then used to treat water polluted with nitrates, representing an optimal example of circular economy strategy. In this work, the own-designed valorization unit is described, with special focus on its main constituting elements. The theoretical study of the co-incineration of rice straw and wood pellets identified the optimised combustion conditions. Experimental tests using the theoretical inputs confirmed the most adequate operational conditions (10 g rice straw pellets/min + 10 g wood pellets/min, 6–7 Nm3/h of air, T = 500 °C) and helped in the definition of improvements on the experimental plant.
47

Andrés-Vizán, Sara M., Joaquín M. Villanueva-Balsera, J. Valeriano Álvarez-Cabal, and Gemma M. Martínez-Huerta. "Classification of BOF Slag by Data Mining Techniques According to Chemical Composition." Sustainability 12, no. 8 (April 18, 2020): 3301. http://dx.doi.org/10.3390/su12083301.

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In the process of converting pig iron into steel, some co-products are generated—among which, basic oxygen furnace (BOF) slag is highlighted due to the great amount generated (about 126 kg of BOF slag per ton of steel grade). Great efforts have been made throughout the years toward finding an application to minimize the environmental impact and to increase sustainability while generating added value. Finding BOF slag valorization is difficult due to its heterogeneity, strength, and overall swallowing, which prevents its use in civil engineering projects. This work is focused on trying to resolve the heterogeneity issue. If many different types of steel are manufactured, then different types of slag could also be generated, and for each type of BOF slag, there is an adequate valorization option. Not all of the slag can be valorized, but it can be a tool for reducing the amount that must go to landfill and to minimize the environmental impact. An analysis by means of data mining techniques allows a classification of BOF slag to be obtained, and each one of these types has a better adjustment to certain valorization alternatives. In the plant used as an example of the application of these studies, eight different slag clusters were obtained, which were then linked to their different potential applications with the aim of increasing the amount valorized.
48

Wądrzyk, Mariusz, Łukasz Korzeniowski, Marek Plata, Rafał Janus, Marek Lewandowski, Grzegorz Borówka, and Przemysław Maziarka. "Solvothermal Liquefaction of Blackcurrant Pomace in the Water-Monohydroxy Alcohol Solvent System." Energies 16, no. 3 (January 19, 2023): 1127. http://dx.doi.org/10.3390/en16031127.

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Wet organic wastes are especially troublesome in valorization. Therefore, innovative solutions are still in demand to make valorization feasible. In this study, we tested a new transformation route of a blackcurrant pomace as a high-moisture industrial waste through a series of high-temperature and pressure solvothermal liquefaction experiments. The feedstock was directly converted under near-critical conditions of the binary solvent system (water/2-propanol). The goal was to examine the effect of conversion parameters (temperature, biomass-to-solvent ratio) on the change in the yield of resultant bioproducts, as well as the quality thereof. The experiments were conducted in a batch autoclave at a temperature between 250 and 300 °C. The main product of the transformation was liquid biocrude, which was obtained with the highest yield (ca. 52 wt.%) at 275 °C. The quality of biocrude was examined by ATR-FTIR, GC-MS, and elemental analysis. The ultimate biocrude was a viscous heterogeneous mixture containing various groups of components and exhibiting evident energy densification (ca. 145–153%) compared to the value of the feedstock. The proposed processing method is suitable for further development toward efficient valorization technology. More specifically, the co-solvent additive for liquefaction is beneficial not only for the enhancement of the yield of the desired product, i.e., biocrude, but also in terms of technological aspects (reduction of operational pressure and temperature).
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L. Simakova, Irina, Andrey V. Simakov, and Dmitry Yu. Murzin. "Valorization of Biomass Derived Terpene Compounds by Catalytic Amination." Catalysts 8, no. 9 (August 29, 2018): 365. http://dx.doi.org/10.3390/catal8090365.

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This review fills an apparent gap existing in the literature by providing an overview of the readily available terpenes and existing catalytic protocols for preparation of terpene-derived amines. To address the role of solid catalysts in amination of terpenes the same reactions with homogeneous counterparts are also discussed. Such catalysts can be considered as a benchmark, which solid catalysts should match. Although catalytic systems based on transition metal complexes have been developed for synthesis of amines to a larger extent, there is an apparent need to reduce the production costs. Subsequently, homogenous systems based on cheaper metals operating by nucleophilic substitution (e.g., Ni, Co, Cu, Fe) with a possibility of easy recycling, as well as metal nanoparticles (e.g., Pd, Au) supported on amphoteric oxides should be developed. These catalysts will allow synthesis of amine derivatives of terpenes which have a broad range of applications as specialty chemicals (e.g., pesticides, surfactants, etc.) and pharmaceuticals. The review will be useful in selection and design of appropriate solid materials with tailored properties as efficient catalysts for amination of terpenes.
50

Silva, Carla. "Greenhouse Gas Emission Assessment of Simulated Wastewater Biorefinery." Resources 10, no. 8 (July 28, 2021): 78. http://dx.doi.org/10.3390/resources10080078.

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A wastewater treatment plant (WWTP) can be considered a system where dirty water enters and fresh water (by means of treatment processes) and other co-products such as sludge and biogas exit. Inside the system, typically, the following steps occur: preliminary treatment, primary treatment, secondary treatment, tertiary treatment, disinfection, and solids handling. The system transforms biomass into several energy and non-energy products, which fall into the definition of a biorefinery. This research compares three simulated WWTP in terms of their environmental greenhouse gas (GHG) emission release to the atmosphere: a generic one (without co-product valorization), one that converts co-products into fertilizer, heat, and electricity, and a third one that converts co-products into heat, electricity, fertilizer, and bioplastic. Heat and electricity are used to provide its energy needs. The chosen impact category is GHG, and the aim is to project the best scenario to the European context in terms of GHG avoidance (savings). The scope is the upstream electricity and natural gas production, the in-use emissions, and the avoided emissions by substituting equivalent fossil-based products. The functional unit is 1 L of sewage (“dirty water”). The GHG savings are evaluated by comparing a generic WWTP scenario, without co-product valorization, with alternative scenarios of co-product valorization. Conventional LCA assuming all the emissions occurs at instant zero is compared to a more realistic environment where for each year, the average of the variable emission pulses occurs. Variable emissions pulses are taken from variable inflows data publicly available from European COST actions (COST Action 682 “Integrated Wastewater Management” as well as within the first IAWQ (later IWA) Task Group on respirometry-based control of the activated sludge process), within the later COST Action 624 on “Optimal Management of Wastewater Systems”). The GHG uncertainty is estimated based on the inputs benchmark data from the WWTP literature and by having different available global warming potential dynamic models. The conventional LCA versus dynamic LCA approach is discussed especially because a WWTP is by nature a dynamic system, having variable inputs along time and therefore variable output GHG emission pulses. It is concluded that heat needs are fully covered by biogas production in the anaerobic digester and combustion, covering its own energy needs and with a potential for heat district supply. Only 30–40% of electricity needs are covered by combined heat and power. Bioplastics and/or fertilizer yields potentially represent less than 3% of current European needs, which suggests the need to reduce their consumption levels. In comparison to generic WWTP, GHG savings are 20%, considering the uncertainty in the benchmark input assumptions. The former is much higher than the uncertainty in the dynamic global warming potential model selection, which means that the model selection is not important in this case study.

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