Dissertations / Theses on the topic 'System of anaerobicaerobic bioreactors'
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Козар, Марина Юріївна. "Розробка технології біологічного очищення стічних вод від сполук фосфору в системі анаеробно-аеробних біореакторів." Doctoral thesis, Київ, 2014. https://ela.kpi.ua/handle/123456789/8673.
Full textFerrero, Giuliana. "Development of an air-scour control system for membrane bioreactors." Doctoral thesis, Universitat de Girona, 2011. http://hdl.handle.net/10803/32202.
Full textEl treball presentat a la tesi inclou el desenvolupament i la implementacio d’un nou sistema de control robust basat en les tendencies de la permeabilitat i, al mateix temps, capac de reduir l’aeracio de forma proporcional al flux de permeat. S’ha seleccionat la permeabilitat com el parametre clau per comparar directament els canvis temporals en el funcionament de les membranes. La pressio transmembrana i el flux es mesuren cada 10 segons i llavors la permeabilitat es calcula automaticament. El senyal de les dades recollides en linia es filtra adequadament mitjancant diversos algoritmes matematics. L’algoritme de control compara diariament una tendencia a curt termini de la permeabilitat amb una tendencia a llarg termini de la permeabilitat, i s’aplica una accio de control proporcional al quocient de les dues tendencies, sense excedir mai el cabal d’aeracio recomanat pels fabricants de membranes.
Ntwampe, Seteno Karabo Obed. "A perfluorocarbon-based oxygen delivery system to a membrane bioreactor." Thesis, [S.l. : s.n.], 2009. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1059&context=td_cput.
Full textJamaleddine, Eyad. "Composting bioreactors: heat redistribution and heat recovery system for small compost vessels." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123122.
Full textLe compostage est une méthode de plus en plus populaire pour la gestion municipale et résidentielle des déchets. Le compostage uniforme est nécessaire pour obtenir un produit homogène de haute qualité et assurer la destruction des agents pathogènes. Il est donc essentiel de maintenir une température uniforme dans tout le compost. Pour mieux y parvenir, un récipient de compost équipé d'un système de redistribution de la chaleur (HRS) a été conçu, construit et vérifié. Ce système est composé d'un échangeur de chaleur, un tube en plastique, et une bobine de cuivre rempli d'eau. La digestion bactérienne des matières organiques cause une augmentation de la température de l'eau à l'intérieur du HRS et provoque un effet de flottabilité qui enchaîne un déplacement d'eau à l'intérieur du tube de cuivre, distribuant la chaleur du centre le plus chaud du compost vers les zones plus froides et ce, sans apport d'énergie externe. La chaleur est également redistribuée par conduction le long du tube de cuivre. Les résultats obtenus suggèrent que le HRS atteint son objectif, mais des pertes de chaleur ont été découvertes à la sortie d'air de 4 ̎. Un échangeur de chaleur à air (AES) a été ajouté pour réduire la perte de chaleur. Un total de douze expériences ont été effectuées : quatre avec le HRS, quatre avec l'AES et quatre contrôles. Les vaisseaux été équipés de thermocouples placés à 33, 54 et 84 cm du sol. Les vaisseaux équipés du HRS ont démontré des températures plus élevées au cours des 10 premiers jours de l'expérience (p < 0,001).
Monclús, Sales Hèctor. "Development of a decision support system for the integrated control of membrane bioreactors." Doctoral thesis, Universitat de Girona, 2011. http://hdl.handle.net/10803/78922.
Full textEl treball presentat en aquesta tesi doctoral inclou diversos estudis parcials amb l’objectiu final de desenvolupar un sistema d’ajuda a la decisió pel control integrat dels bioreactors de membrana. Els sistemes d’ajuda a la decisió, SAD o DSS de l’anglès, decision support system, tenen com a objectiu facilitar l’operació de processos complexes degut a multitud de variables de procés. Per aquest motiu, la recerca realitzada s’ha centrat en aspectes relacionats amb l’eliminació de nutrients, i en el desenvolupament d’indicadors o sensors pel procés de filtració capaços d’integrar-se amb els processos biològics que hi tenen lloc. També s’ha treballat en el disseny, desenvolupament, implementació i validació d’eines basades en el coneixement que facilitin el control automàtic i la supervisió dels MBR mitjançant un DSS.
Ronne, Luke John Thomas. "Design considerations and analysis of a bioreactor for application in a bio-artificial liver support system." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-04242008-093504/.
Full textMamo, Julian. "Assessment and optimisation of the operation of integrated membrane system for wastewater reclamation." Doctoral thesis, Universitat de Girona, 2018. http://hdl.handle.net/10803/667844.
Full textLa combinació de dos tecnologies de membrana acoblades en sèrie ha esdevingut un tecnologia consolidada degut a la capacitat de produir aigua d’elevada qualitat i potencialment reutilitzable per aplicacions industrials com fins i tot per ser potabilitzada. Tot i l’elevada experiència adquirida en aquests processos combinats, encara hi ha aspectes del procés que calen una investigació més profunda que inclogui el coneixement sobre l’eliminació dels compostos emergents, el control de la formació de N-Nitrosodimetilamines (NDMA), l’ús de l’energia associada amb el procés incloent el cost total de produir l’aigua reutilitzable, i el seguiment de la integritat de la membrana en el tractament amb osmosi inversa (OI). L’objectiu d’aquest treball recau en avançar en el coneixement dels aspectes relacionats amb cada un dels quatre reptes esmentats, per aconseguir discutir de forma conjunta la millor forma d’integrar aquest nou coneixement adquirit proposant un sistema d’ajuda a la decisió pel control i seguiment de l’operació de sistemes integrats de membrana (SIM).
Porter, Blaise Damian. "Development and application of a 3-D perfusion bioreactor cell culture system for bone tissue engineering." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-11222005-174526/.
Full textWick, Tim, Committee Member ; Neitzel, Paul, Committee Member ; Fyhrie, David, Committee Member ; Garcia, Andres, Committee Member ; Guldberg, Robert, Committee Chair. Vita.
Cui, Na. "Development of a system of small pressurizable bioreactors used to assess Saccharomyces cerevisiae's behaviour under CO₂ and O₂ pressure." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC038.
Full textYeast fields of application are extensive, ranging from food, brewing to green energy. The yeast Saccharomyces cerevisiae is the worldwide dominating species. In addition, S. cerevisiae is also an important model organism in modern cell biology research and is one of the most thoroughly studied eukaryotic microorganisms.This work focuses on the behaviour of yeast culture exposing to pressure induced by CO2 and O2. The pressure is set up to 9 bar (A) due to the highest pressure can be reached in industrial scale bioreactors is 8 bar (A). In order to expose yeast culture to pressure conditions, new bioreactors were built and characterised. Two experiments are designed: an experiment to investigate the yeast growth and the metabolites under pressure, as well as the molecular biology experiments to better understand yeast cells behaviour under various O₂ pressure.The first experiment has offered a better understanding of the influence of CO₂ and O₂ pressures on S. cerevisiae culture behaviour. Regarding the impact of CO₂, the study has shown that the yeast culture has consistent behaviours under different pressures. While, in terms of O₂ pressure, under 2 to 5 bar (A) air pressure, yeast cells show higher growth rates compared with atmospheric pressure. Furthermore, the antioxidant molecular glutathione kept a redox balance. Under 6 to 9 bar (A), the cells growth is inhibited and 9 bar (A) leads to the excessive oxidised glutathione accumulation.On the other hand, the molecular experiment has derived further insights on the culture behaviour under O2 pressures. The investigation of several oxidative stress induced genes has highlighted the cellular effects of oxidative stress induced by oxygen pressure and molecular mechanisms of oxidative stress response in yeast cell. It was shown that several oxidative stress induced genes were upregulated: transcription factor gene Msn2/4 and Yap 1, glutathione metabolism genes GSH2 and GLR, as well as a superoxide dismutase synthesis gene SOD2
Deladisma, Marnico David. "Accuracy and Enhancement of the Lattice Boltzmann Method for Application to a Cell-Polymer Bioreactor System." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10546.
Full textDu, Preez Ryne. "Development of a membrane immobilised amidase bioreactor system." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1996.
Full textOliveira, Aline Furtado 1989. "Desenvolvimento de sistema microfluídico baseado em gradiente de concentração difusivo para bioprocessos = Development of microfluidic system based on diffusive concentration gradient for bioprocess." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266097.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
Made available in DSpace on 2018-08-25T04:50:36Z (GMT). No. of bitstreams: 1 Oliveira_AlineFurtado_M.pdf: 2165174 bytes, checksum: d3aa7acdee3edc7f222daf3f7a82f910 (MD5) Previous issue date: 2014
Resumo: A microfluídica é uma ciência que opera em pequenos volumes de fluídos dentro de canais em dimensões de micrômetros (10-6 m). Estes sistemas permitem controlar moléculas no espaço e no tempo, gerando resultados rápidos e confiáveis num sistema precisamente controlado e capaz de mimetizar ambientes celulares. Os dispositivos microfluídicos apresentam uma diversidade de geometrias aplicáveis para diversas áreas de pesquisas, sendo que a capacidade de formar gradientes permite avaliar as condições e o desempenho celular microbiano. Assim, este trabalho teve como objetivo desenvolver dispositivos microfluídicos capazes de formar gradiente de concentração difusivo e investigar sua aplicabilidade em bioprocessos. Diante disso, foram propostos três modelos de dispositivos usando materiais biocompatíveis: (i) dispositivo em base de vidro, denominado de Vidro-vidro; (ii) em base de vidro e poli dimetilsiloxano (PDMS), chamado de Vidro-PDMS e (iii) vidro e PDMS modificado quimicamente para tornar a superfície hidrofílica, Vidro-mPDMS. Os três dispositivos foram avaliados quanto à capacidade de formação de gradiente de concentração difusivo, os quais apresentaram um perfil linear. Além disso, validou-se o estudo do comportamento de Saccharomyces cerevisiae ATCC 7754 num gradiente de concentração de glicose de 0 a 40 g/L de glicose, sendo usado o dispositivo vidro-vidro. Foi observado que houve crescimento de células ao longo das câmaras microfluídicas, e isso possibilitou na determinação de parâmetros cinéticos, os quais não apresentaram diferença estatisticamente significativa com o cultivo em batelada convencional. As condições da microfluídica possibilitaram também a determinação da cinética de Monod, usando menores intervalos de gradiente. Portanto, este dispositivo microfluídico mostrou-se uma ferramenta com potencial para investigar comportamento celular frente à diferença de concentração e contribuirá para a otimização de bioprocessos através da determinação de parâmetros cinéticos
Abstract: Microfluidic is a science that operates in small amounts of fluids inside channels in dimensions of micrometers (10-6 m). These systems allow the precise control of molecules in space and time, generating fast and reliable results and it can also be used to mimics environment cellular . Microfluidic devices can be produced in diversity of geometries, it can be applied in several scientific areas and especially the formation of concentration gradients can be used to evaluate conditions and performance of microbial cell. Therefore, this work had the objective to develop microfluidic devices that are able to generate diffusive concentration gradients and investigate their applicability in bioprocesses. In this context, we propose three models of microfluidics devices using biocompatible materials: (i) Glass-based device, named glass-glass; (ii) glass and poli dimetilsiloxane (PDMS) based device, Glass-PDMS and (iii) glass and chemically modified PDMS (hydrophilic surface), Glass-mPDMS. The three devices were evaluated by their capacity of generating difusive concentration gradient, demonstrating linear concentration profile. Furthermore, the behavior of Saccharomyces cerevisiae ATCC 7754 inside of glucose concentration gradient ranging from 0 to 40 g/L were validated, using the glass-glass device . It was observed that cell growth along the microfluidic chambers, having determined the kinetic parameters, which was considered statistically similar to conventional batch cultivation. Conditions of microfluidics also allowed determination of the Monod kinetic, using smaller intervals gradient Therefore, the use of concentration gradient in microfluidic device is a potential tool for investigate of microbial cell behavior against the concentration difference and it can contribute to the optimization of bioprocesses through the determination of kinetic parameters
Mestrado
Desenvolvimento de Processos Biotecnologicos
Mestra em Engenharia Química
Sun, Feiyun, and 孙飞云. "A membrane bioreactor (MBR) for a biological nutrient removal system: treatment performance, membrane foulingmechanism and its mitigation strategy." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44903856.
Full textValls, Margarit Maria. "Development of an advanced 3D culture system for human cardiac tissue engineering." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/458734.
Full textLa cardiopatia isquèmica és una de les principals causes de mort a nivell mundial. Exceptuant el trasplantament de cor, les teràpies actuals són insuficients per restablir la funció cardíaca. Per tant, cal desenvolupar teràpies alternatives que fomentin la regeneració i/o reparació del cor, així com també noves eines per estudiar la fisiologia i fisiopatologia cardíaca in vitro. Una de les estratègies més prometedores és l’enginyeria tissular cardíaca, ja que té com a finalitat generar constructes de teixit cardíac que mimetitzin el teixit real. Aquests constructes podrien utilitzar-se com a models in vitro del miocardi humà i també com a empelts per reparar el cor malmès. Per obtenir constructes de teixit cardíac humà cal reproduir l’entorn cardíac real. Una de les estratègies més habituals consisteix en sembrar cardiomiòcits en una estructura 3D (bastida), i després cultivar el constructe en un sistema de senyalització biomimètic, normalment un bioreactor. Tanmateix, generar constructes grans i semblants al miocardi humà adult a partir de cardiomiòcits humans derivats de cèl·lules mare de pluripotència induïda (hiPSC-CM) segueix sent un repte. Així doncs, la hipòtesi d’estudi és que combinant hiPSC-CM amb una bastida 3D i estímuls biofísics adequats, es podrien generar constructes de teixit cardíac semblants al miocardi humà tant a nivell estructural com funcional. Per abordar la hipòtesi, en aquest treball s’ha caracteritzat una bastida 3D constituïda principalment per col·lagen i s’ha definit un mètode eficient per sembrar cardiomiòcits dins l’estructura. A més a més, s’ha desenvolupat un bioreactor de perfusió de sistema en paral·lel que assegura un transport de massa efectiu entre les cèl·lules i el medi de cultiu. També s’ha dissenyat una càmera de perfusió que inclou elèctrodes per estimular elèctricament les cèl·lules durant el cultiu, així com també per monitorar la funció del teixit artificial. Amb aquest avançat sistema de cultiu, s’han generat constructes de teixit cardíac humà 3D amb una funcionalitat semblant a la del teixit real. A més a més, el sistema ha permès monitorar l’electrofisiologia del teixit artificial en temps real, així com també demostrar el paper crucial de l’estimulació elèctrica per obtenir constructes amb una funcionalitat òptima.
Cardello, Ralph Joseph. "Real-time implementation of an intelligent diagnostic and control system for bioreactors." Thesis, 1990. http://hdl.handle.net/1911/16325.
Full textWu, Tung-Han, and 吳東翰. "Development of a Microfluidic System for Microtissue Applications - Bioreactors Based on Mass Transport." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/64ptjk.
Full text國立臺灣大學
應用力學研究所
106
Disease-on-a-chip is one of the leading research fields in personalized medicine for future health care. Among the major chronical diseases, cancer is the second leading cause of death next to cardiovascular disease. It is due to its high heterogeneity, and identification of an effective treatment sets a big challenge to cure cancer. Hence, the method to develop tumor-on-a-chip has drawn much attention in this field. By using a tumor-on-a-chip system for drug screening or genetic screening, we can design personalized medical treatment for different patients according to the screening results. In this study, two kinds of microfluidic systems to generate two different culture environments through generating different flow patterns are designed: (1) Nutrition-deprived condition, which offers a slow nutrient support through diffusive flow, (2) Convection-dominated condition, which offers a rapid nutrient support through interstitial convective flow to achieve a rapid nutrient supply. In this thesis, different initial cell numbers and nutrition supply to investigate the growth of a microtumor are studied and compared. A long microfluidic channel is designed to create a diffusion dominant microtumor chamber, and the level of nutrition deprivation is controlled by two methods. One is to control the initial loading concentration of cells, and the other is to control the perfusion rate of the nutrition supply diffuses from two side channels. Our experimental finding suggests that a lower initial cell concentration can developed into continuous microtumors across the 1 mm by 2 mm microchamber with a uniform growth rate. The growth of microtumors can be regulated by the level of nutrition deprivation. It suggests that nutrition deprivation could play an important role on the initial development of a microtumor. Applying this model system, it could potentially be optimized for the tumor growth among different kinds of tumor cells. Thus, we can provide a personalized system to develop patient specific microtumors to study the heterogeneity of tumors between patients and to identify an effective treatment. In the second study we attempt to connect microvasculature into microtumor tissue to mimic nutrition and oxygen supply of tumor. Once the tumor is formed, cancer cells can directly uptake surrounding nutritions or exclude the metabolic waste by the diffusion between the cells; however, once the tumor grows beyond the diffusion limit of 100 μm, the diffusion between the cells is insufficient, resulting in hypoxic conditions. Thus, tumors can tirger angiogenic process to create an environment for tumor growth. Otherwise, the tumor is anoxia (<2%) due to limited oxygen induction, and acidification due to reprogramming of metabolic procss, it eventually creates apoptosis and necrosis. We further design two kinds of microfluidic systems to generate two different microenvironments through different stages of tissue development. Both are nutritionally deprived and provide slow nutritional support through the diffusion transport. We successfully develop a large-scale vascular network and microtumor. It was shown that the angiogenic process is induced by the adjacent fibroblast chamber. In the second study, we successfully developed a large-scale microtumor next to developed vasculature. This platform can provide complete physiological and engineering conditions, and it is believed that vascular biomimetic cancer can be realized on this bioreactor. All microfluidic platforms are verified with finite element analysis. The microfluidic and driving pressures of different chamber height are analyzed. The flow velocity of the microfluid in the microchannel, the pressure gradient of the chamber and the velocity distribution in the chamber also are discussed. Finally, time-dependent concentration analysis is performed. The results show that we successfully developed microfluidic systems that can be applied to microtissues. These newly developed systems break through the limitations of the mm size of microtumor and blood vessels in lab-on-a-chip systems. The 3-D tissue not only improves human compatibility, and in the future, patient-specific tumor models or different cancer cell types also can be applied for personalized health before clinical applications.
Martins, João Carlos Morais. "Development of magnetic microcapsules as dynamic bioreactors for tissue engineering applications." Master's thesis, 2018. http://hdl.handle.net/10773/25458.
Full textBone related disorders are a problem which affects most of the world population with a tendency to increase. Although the bone tissue has regenerative capacity, when a fracture exceeds a critical point the bone does not have the capacity to self-repair this defect. Currently these defects are treated at the medical level using ceramic or metallic implants which give rise to immune responses by the host and as a consequence are rejected after some time after implantation. Furthermore, the non-bioactivity of these biomaterials restricts the total repair of the tissue and the recovery of its biological and functional properties. Therapies such as the in situ injection of cells encapsulated in bioactive and biodegradable biomaterials have emerged in recent years as an alternative and advantageous approach for bone regeneration. In this context, capsular systems are the most advantageous because they not only protect the cells administered, but also allow the exchange of nutrients / metabolites in an effective way. This ensures the viability of the system over longer periods of time, thus contributing to a better regeneration of the damaged tissue. However, the implantation of microcapsules containing cells has proved to be quite challenging because of its poor interaction with surrounding tissues, and its displacement from the initial site of implantation is common. As a way of overcoming these limitations, this work aimed to develop a magnetically responsive capsule as a delivery system for cells adhered to microparticles. The inclusion of a response to magnetic stimuli aims to allow the capsules to be fixed in situ at the implantation site through an external magnetic field. For this purpose, iron oxide magnetic nanoparticles (≈42.69 nm) were initially produced, which were resuspended in a solution of polycaprolactone which, by oil-in-water emulsion, gave rise to magnetically responsive microparticles (μPCL [MNPs]) with an average size of 40.5 ± 13.2 μm. The range of sizes to be used was 40-63μm to enhance cell adhesion, hence the need to sieve the particles (55.3 ± 9.00 μm). Microparticles μPCL [MNPs] were then subjected to a coating of collagen I to promote adhesion of pre-osteoblastic cells (MC3T3-E1) after encapsulation. The encapsulation was done using a mixture of alginate, μPCL [MNPs] and cells, which by ionotropic gelation gave rise to the formation of spherical structures as demonstrated by optical microscopy images. The microspheres were then subjected to a coating process by sequential deposition of polyelectrolytes using the layer-by-layer (LBL) technique. This approach allowed to obtain capsules with a liquefied nucleus and with integrity due to their coating LBL. Cell viability and metabolic activity of the encapsulated cells were then evaluated. In summary, the capsules produced maintained cell viability and metabolic activity over 7 years. Ex vivo studies demonstrated that the use of an external magnetic field allows the capsules to be fixed where they were placed even when subjected fluid wash. The results show that it is possible to fix the capsules in situ after being implanted and open the opportunity to use these systems in biomedical applications in the near future
Mestrado em Biotecnologia
Xue, Kai-Ren, and 薛凱仁. "Establishment the culture system in stirred bioreactors to produce vaccine antigens of recombinant protein." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/98163432338171065569.
Full text國立屏東科技大學
動物疫苗科技研究所
97
The industrial enzymes and therapeutic recombinant proteins are often produced by E. coli expression systems, the physiology and metabolic mechanism of E. coli were mainly investigated, and utilized in the biological technology. However, the traditional production vessels of bacterium recombinant protein antigens are flask systems, the culture space limited, the medium share to be able gradually to consume unable to supplement the oxygen. Certainly, they do not suit the long-term culture and the large-scale production process. Streptococcus suis, S. suis was based on capsule polysaccharide, 35 serotypes of the S. suis have been identified, causing arthritis, meningitis, septicemia and sudden death, now it is also an zoonotic agent for humans. Recently research indicated that a new surface protein Sao of S. suis reacted with 30 serotypes of convalescent-phase sera from pigs clinically infected by S. suis. Our rSao (recombinant surface antigen one) was recognized by challenged swine serum. The antibody titers of immunized inactivated S. suis plus rSao mice and swine were significantly higher than control (p<0.01). The antibody titers of immunized swine with rSao plus subunit inactivated vaccine were also be enhanced. After challenge non-vaccinated as control swine showed symptoms of fever, anorexia, depression, and arthritis. The anatomical lesions were reduced 60% in rSao group than control after challenge with serotype 1; and reduced 43% after challenge with serotype 2. These data indicated that rSao can induce cross-protection with different serotypes of S. suis. The immunofluorescences analysis CD4+/CD8+ cells showed that immunized rSao swine were significantly higher than control (p<0.01) and toward the Th1 pathway. In this study, we used 10-liter stirred tank bioreactor to culture E. coli with designed medium and increase the production efficiency by batch culture. To explore the relationship between carbon and oxygen in the fermentation process and E. coli growth condition, leading to increase the yield of recombinant proteins, to develop the production technique platform for the low cost vaccine antigens.
Wei-Lin and 林威. "Membrane bioreactors for treatment industrial park sewerage system case study on operation of wastewater treatment plant." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/s2sx32.
Full text國立中央大學
環境工程研究所在職專班
105
The purpose of this paper study was to investigate the effluent of membrane bioreactors for treatment industrial park sewerage system. Long-term experimental results show that the main function of membrane bioreactors is to remove the suspended solids in the wastewater and by the way remove the insoluble chemical oxygen demand, but the average removal rate of dissolved chemical oxygen demand is less than 50% and the removal rate of heavy metals in sewage also showed unstable results. To enhance the industrial park sewerage system membrane bioreactors for chemical oxygen demand, heavy metal removal rate, the first implementation of membrane bioreactors and the traditional biological treatment system similar process of chemical oxygen demand and dissolved chemical oxygen removal efficiency detection and comparison, and to identify the two systems of different treatment unit chemical coagulation-flocculation dosing reaction unit with chemical oxygen demand and heavy metal removal rate function, and by the simulated Jar tests to verify the hypothesis, Collecting the whole operation test and experimental result evaluation to seek improvement policy. It is hoped that by membrane bioreactors to deal with industrial park sewerage system wastewater, the first need for the industrial park manufacturers pre-treatment processes and into the membrane bioreactors raw wastewater quality control to reduce the formation of membrane fouling substances and high concentrations of raw wastewater into the plant is absolutely the key factor of membrane bioreactors smooth operation. And no treatment system can be completely effective for any pollutions to remove from the raw wastewater, the results show that membrane bioreactors for treatment industrial park sewerage system at least with chemical coagulation-flocculation dosing reaction unit, and investigate the other into the plant wastewater characteristics need to configure other wastewater treatment unit with the membrane bioreactors can make the full advantage of processing function.
Deng, Qiaosi. "Ammonia Removal and Recovery from Wastewater Using Natural Zeolite: An Integrated System for Regeneration by Air Stripping Followed Ion Exchange." Thesis, 2014. http://hdl.handle.net/10012/8191.
Full textVan, Zuydam Jason Peter. "Development of a bioreactor system using a pine bark matrix for the removal of metal ions from synthetic aqueous solutions." Thesis, 2013. http://hdl.handle.net/10413/9912.
Full textThesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2013.