Letteratura scientifica selezionata sul tema "Recyclage distribué"

Around the world freshwater is increasingly scarce, and Texas is no different. Texas continuously operates at a shortage, where freshwater supply cannot meet demand. Projections show that this deficit will increase over the next decade, which would cause billions of dollars in losses for the Texas economy. But Texas is in a unique position to correct its water problems and take corrective measures to avoid such losses. Innovations around hydraulic fracturing in the oil and gas industry, namely recyclable “produced water” and the burgeoning “water midstream” sector will play an important role in remediating Texas’ freshwater scarcity concern. Furthermore, the technological advancements in recyclable produced water, combined with an effective business model and operational infrastructure of the water midstream sector, would generate a consistent source of freshwater for industrial, manufacturing, and agricultural uses that will mitigate the strain on natural freshwater sources. Private actors continue to fund and build facilities to gather, recycle, and distribute produced water; but there are barriers to expansion of these systems. While the private sector has a foundational blueprint to utilize recyclable produced water, there are business, legal, environmental, and regulatory concerns that must be addressed by the Texas government to pioneer a sustainable water future that will greatly benefit Texas’s economy and residents. The Texas government must adopt a proactive approach to thi

Using carbon, nitrogen, and sulfur sourced from thiourea to co-doped TiO2 (C,N,S-TiO2), was prepared via hydrothermal method using precursors of titanyl sulfate TiOSO4, obtained by decomposition of ilmenite ore in Binh Dinh. The material used to make the substrate is glass and distributed onto it is silicone and photocatalytic. The structure and properties of materials system were investigated by modern physicochemical analysis methods including scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, diffuse reflection spectroscopy UV-Vis, transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and nitrogen isothermal adsorption. The photocatalytic ability of materials system after being carried by silicone is demonstrated by decomposing tetracycline (10 mg/L) in aqueous solution with the yield more than 88% efficiency after 6 hours under visible light irradiation. The optimum dose of the photocatalyst was 0.6 g/L under visible light irradiation. The results indicated that C, N, S co-doped TiO2 demonstrated the highest photocatalytic efficiency and a perspective recyclable potential when it is distributed onto silicone.

Manajemen pengelolaan sampah dengan pola 3R (reuse, reduce dan recycle) belum berjalan optimal, karena sistem pemilahan sampah belum terlaksana secara terpadu. Sampah yang sudah dipilah sejak level rumah tangga belum tentu akan ditangani secara terpisah ketika telah sampai di tempat pembuangan akhir (TPA). Pemutusan rantai distribusi sampah rumah tanggal menuju TPA melalui pembuatan eco-enzym pada level rumah tangga adalah salah satu solusi alternatif. Eco-enzym kaya akan manfaat, serta mudah dan murah untuk diaplikasikan pada level rumah tangga. Kegiatan ini dilakukan dengan 3 model pendekatan, yaitu Partisipatory Rural Appraisal (PRA), Entrepreneurship Capacity Building (ECB), dan Teknologi transfer (TT). Ketiga model tersebut diaplikasikan melaui penggalian permasalahan smapah rumah tangga, peningkatan wawasan manfaat ekonomi sampah, dan peningkatan kapasitas pembuatan eco-enzym.

In this paper, an energy management strategy for electric vehicles equipped with fuel cell (FC), battery (BAT), and supercapacitor (SC) is considered, aiming at improving the whole performance under a framework of vehicle to network application. In detail, based on wavelet transform and equivalent consumption minimization strategy (ECMS), the demand power of vehicles is optimized to enhance the lifespan of fuel cell, fuel economy, and dynamic performance of electric vehicles. The wavelet transform is used to separate the high-frequency power in order to provide a peak power and recycle the braking energy. The equivalent consumption minimization strategy is used to distribute the low-frequency power to fuel cell and battery for minimizing the hydrogen consumption. Obtained results are studied using an advanced vehicle simulator, and its effectiveness of the strategy is confirmed, which provides a fundamental control method for the IOV application.

Various techniques have been used in distributed file systems for data availability and stability. Typically, a method for storing data in a replication technique-based distributed file system is used, but due to the problem of space efficiency, an erasure-coding (EC) technique has been utilized more recently. The EC technique improves the space efficiency problem more than the replication technique does. However, the EC technique has various performance degradation factors, such as encoding and decoding and input and output (I/O) degradation. Thus, this study proposes a buffering and combining technique in which various I/O requests that occurred during encoding in an EC-based distributed file system are combined into one and processed. In addition, it proposes four recovery measures (disk input/output load distribution, random block layout, multi-thread-based parallel recovery, and matrix recycle technique) to distribute the disk input/output loads generated during decoding.

Penelitian ini bertujuan untuk merancang sebuah platform donasi pakaian yang terintegrasi sehingga dapat memfasilitasi proses pengumpulan, penjulan kembali, distribusi donasi, dan daur ulang (collect, resale, re-donate, dan recycle) berbasis teknologi informasi secara melingkar atau circular. Sistem ini dirancang untuk mempermudah proses pengumpulan donasi dan penjualan produk fashion kembali sehingga selain mendapatkan nilai ekonomi dari barang yang dijual kembali, juga dapat memperpanjang usia dari produk fashion tersebut, sebelum pada akhirnya dilakukan proses daur ulang. Juga kemudian hasil donasi (baik berupa dana tunai mapun barang) dapat didistribusikan oleh penerima manfaat seperti yatim dan dhuafa. Selain donasi dalam bentuk produk pakaian juga difasilitasi donasi dalam bentuk dana tunai. Pelaporan jumlah donasi juga disediakan dalam sistem ini untuk meningkatkan transparansi dan akuntabilitas. Sistem ini menjadi mendesak untuk dibangun mengingat masih banyaknya kesulitan untuk melakukan proses donasi (terutama dalam bentuk barang seperti produk fashion) yang mudah, transparan, dan akuntabel dalam satu buah sistem yang terintegrasi seperti yang dibuat pada penelitian ini. Sistem ini dirancang dengan mengikuti tahapan Rapid Application Development (RAD) Model. Proses perancangan divisualisasikan dengan menggunakan Unified Modeling Language (UML). Penelitian dilaksanakan dengan beberapa pendekatan seperti literatur review, analisis, perancangan, dan implementasi. Aplikasi yang dibuat diberi nama Berbagi Barang Berkah. Sistem ini mengadopsi konsep circular fashion yang merupakan penggunaan kembali sumber daya yang sudah dimiliki oleh industri fashion untuk digunakan dan diedarkan kembali secara bertanggung jawab dan efektif selama mungkin. Penelitian ini menghasilkan sebuah platform donasi yang terintegrasi, mulai dari proses pengumpulan barang, pelaporan barang donasi, dan pejualan serta pembelian barang donasi.

Dampak dari tidak optimalnya manajemen sampah pada Kelurahan Jakamulya yang selalu terkena banjir akibat sampah dan Situ Wo yang tidak bisa menampung air. Upaya-upaya untuk mengelola sampah dari sumbernya sudah dilakukan dengan bank sampah namun belum optimal. Tujuan Program Kemitraan Wilayah Kota Bekasi adalah peningkatan partisipasi masyarakat dalam pengelolaan Sampah dengan konsep 3R (reuse, recycle, reduce). Berdasarkan hasil penerapan program PKW dapat disimpulkan bahwa operasional Bank sampah Mutiara Pondok Suryamandala di Kelurahan Jakamulya Kota Bekasi berbasis TPS 3R menjadi kunci penanganan sampah berbasis masyarakat (komunal) sangat efektif untuk pengelolaan sampah yang langsung masyarakat sebagai pengelola plus (pemilik home industri). Tanpa system komunal ini mustahil sampah dapat diatasi dengan tuntas atau berkelanjutan. Membudayakan cara pembuangan sampah yang baik mulai dari lingkungan rumah tangga hingga dengan cara menyerahkan sampah ke Bank Sampah adalah metoda efektif di tingkat masyarakat yang akhirnya akan memandirikan masyarakat dalam mengelola sampahnya sendiri. Menata TPS 3R menjadi pusat pemanfaatan sampah organik dan anorganik secara maksimal merupakan program pengelolaan sampah berbasis komunal yang secara pasti akan memotong mata rantai distribusi sampah dari TPS 3R ke tempat pembuangan akhir.

This study discusses the oxidation induration and swelling behavior of chromium-bearing vanadium titanomagnetite pellets (CVTP) with Co2O3 additions. The reduction swelling index (RSI) and compressive strength of reduced CVTP (CSRC) were investigated with simulated coke oven gas (COG). The results show that the compressive strength (CS) of CVTP decreases from 2448 to 1983 N and the porosity of CVTP increases from 14.86 to 22.49% with increasing Co2O3 additions. The Co2O3 mainly exists in the form of CoFe2O4 in both of CVTP and reduced CVTP, and the CoFe2O4 is hard to be reduced by thermodynamic calculation. The Co-bearing phase mainly distributes on gap edges and among adjacent hematite grains. Many cracks and pores distribute along the grain boundaries and damage the connection of hematite grains. The CSRC decreases from 901 to 376 N, and RSI of reduced CVTP increases from 5.87 to 9.05% with increasing Co2O3 additions. The Co2O3 addition facilitates the aggregation and diffusion of metallic iron particles, and the aggregations of metallic iron thicken the lamellar crystals. The pores and interval of grains enlarge with increasing Co2O3 additions. This study can supply the theoretical and technical basis for the utilization of CVTP and waste residue-bearing cobalt with COG recyclable technology.

Indonesia is the second largest producer of waste after China with an estimated 0.48-1.29 million metric tons per year. Based on data from the Environment, Hygiene and Landscaping Agency (DLHKP), as of 2022 the Klotok Final Management Site (TPA) receives as much as 140 tons of waste per day, the waste is included in organic waste and inorganic waste. Meanwhile, inefficient waste handling can cause water quality in an area to be very poor and contain toxic waste and garbage that is allowed to accumulate can cause flooding and endanger public health. One of the community organizations that cares about waste processing is the Melati Waste Bank in Kediri City. The Melati Waste Bank is productive in carrying out activities to reduce waste in Kediri City, this is evidenced by the process of sorting waste, processing sorted waste, then distribute the product into the society. Unfortunately the efforts are under the expectations of the management and volunteers of the Melati Waste Bank are due to lack of interest in purchasing waste recycling products. This research uses qualitative methods using triangulation techniques where research is carried out by interviews. So as to obtain the results that consumer behavior in purchasing waste recycling products is based on environmental knowledges, recycle behavior and government regulations related to restrictions on the use of single-use plastics.

Penggunaan tanaman tradisional sebagai obat-obatan tidak kalah dibanding bahan obat kimiawi karena penggunaan bahan alami justru tidak menimbulkan efek samping yang berlebihan. Masih terbatasnya penelitian terkait rantai pasokan obat herbal melatarbelakangi penelitian ini sebagai salah satu alternatif solusi dari permasalahan yang terjadi pada proses rantai pasokan obat herbal. Dalam penelitian ini diusulkan sebuah model Sistem Pendukung Pengambilan Keputusan Cerdas berbasis website dengan menggunakan metode Green Supply Chain Operation Reference, Fuzzy Analytic Network Process dan Algoritme Genetika dengan objek penelitian pada industri obat herbal. Sistem yang diusulkan merupakan sebuah sistem penunjang keputusan yang ditingkatkan kinerjanya dengan menambahkan elemen kecerdasan buatan ke dalamnya yang terdiri atas empat bagian utama, yaitu: sistem manajemen dialog, sistem manajemen basis data, sistem manajemen basis model, dan elemen kecerdasan buatan. Pada simulasi sistem diperoleh hasil untuk karbon footprint sebanyak 602 kg sementara total environment footprint sebesar 4.181 kg, recycle waste material menjadi pilihan pertama pakar pada alternatif pengembangan rantai pasok hijau sementara jarak terpendek untuk jalur distribusi sejauh 1014 km. Berdasarkan pengujian load test, aplikasi berjalan baik dengan waktu rata-rata selama 9.28 detik. Hasil dari penelitian adalah sebuah aplikasi online yang dapat diakses pada situs www.herbal.biz.id dengan melakukan registrasi user terlebih dahulu.<br /><br />Kata Kunci: Algoritme Genetika, Fuzzy Analytic Network Process, obat herbal, rantai pasok.

La gestion des déchets plastiques est un problème majeur qui doit encore être résolu dans la perspective d'un développement plus durable des activités humaines. Parmi les solutions envisageables, le recyclage, est un moyen intéressant de revaloriser ses matières non renouvelables. Après des décennies de recyclage centralisé on observe aujourd’hui un intérêt grandissant pour les approches basées sur le recyclage distribué. Profitant de la démocratisation des technologies d'impression 3D open-source (OS) nous proposons de revaloriser localement les plastiques utilisables par ces technologies. Ce recyclage distribué peut être considéré comme une sorte de "réseau intelligent", composé de petites unités de recyclage coordonnées, qui fournissent des filaments de plastique recyclé à la communauté de l'impression 3D. La faisabilité technique de cette approche de recyclage du plastique a été prouvée dans la littérature. Cependant, sa faisabilité du point de vue de la chaîne d'approvisionnement et de la logistique doit encore être démontrée. Afin d'aborder cette question, cette thèse de recherche cherche à apporter des réponses à la question de recherche suivante : Dans quelles conditions est-il possible de déployer un réseau durable de recyclage local et distribué des plastiques en utilisant des technologies d'impression 3D open-source ? En tenant compte de ce qui précède, ce travail de recherche vise à proposer un cadre pour l'analyse et l'évaluation, du point de vue de la durabilité, de l'approche de recyclage distribué du plastique pour l'impression 3D. Le cadre d'évaluation proposé combine l'optimisation et la dynamique des systèmes dans l'évaluation de la durabilité de l'approche de recyclage. L'application du cadre d'évaluation à une étude de cas spécifique d'une université cherchant à mettre en œuvre un démonstrateur de recyclage distribué afin de récupérer les déchets d'impression 3D des collèges et lycées du nord-est de la France, a illustré la faisabilité du point de vue de la durabilité
The management of plastic waste is a major problem that has yet to be resolved with a view to a more sustainable development of human activities. Among the possible solutions, recycling is an interesting way to recycle non-renewable materials. After decades of centralized recycling, there is now a growing interest in approaches based on distributed recycling. Taking advantage of the democratization of open-source 3D printing technologies (OS), we propose to revalorize locally the plastics that can be used by these technologies. This distributed recycling can be considered as a kind of "intelligent network", composed of small coordinated recycling units, which provide recycled plastic filaments to the 3D printing community. The technical feasibility of this plastic recycling approach has been proven in the literature. However, its feasibility from a supply chain and logistics perspective has yet to be demonstrated. In order to address this issue, this research thesis seeks to provide answers to the following research question: Under what conditions is it possible to deploy a sustainable network of local and distributed plastics recycling using open-source 3D printing technologies? Taking into account the above, this research work aims to propose a framework for the analysis and evaluation, from a sustainability perspective, of the distributed plastic recycling approach for 3D printing. The proposed evaluation framework combines optimization and system dynamics in the evaluation of the sustainability of the recycling approach. The application of the evaluation framework to a specific case study of a university seeking to implement a distributed recycling demonstrator to recover 3D printing waste from middle and high schools in northeastern France illustrated the feasibility from a sustainability perspective

La gestion des déchets plastiques est un problème majeur pour un développement plus durable. Ce chapitre propose une méthodologie pour évaluer la durabilité d'un réseau de recyclage local distribué de plastiques en utilisant des technologies open-source telles que l'impression 3D. Un cadre d'analyse et d'évaluation de la durabilité est proposé, combinant l'optimisation et la dynamique des systèmes pour la prise de décision.

The chapter outlines the fundamental principles of Kalecki’s monetary economics. These are that in a capitalist economy, money belongs ultimately to capitalists, to whom it reverts when workers consume, and the function of the price system is to distribute the resulting accumulations of money among capitalists. For individual capitalists money originates through production and exchange, but also through the credit creation of banks. Additional money is not necessary to finance economic growth or investment, since these can be accommodated by an increase in the velocity of circulation of money. Money is therefore endogenous to the system, if not to individual capitalists. The function of fiscal policy and debt management is to recycle money from idle balances into circulation in the real economy, or to stabilize money holdings.