Anaerobic Co-digestion of Organic Fraction of Municipal Solid Waste with Municipal Sludge with Or Without Microwave Pre-treatment - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Anaerobic Co-digestion of Organic Fraction of Municipal Solid Waste with Municipal Sludge with Or Without Microwave Pre-treatment write by Efath Ara. This book was released on 2012. Anaerobic Co-digestion of Organic Fraction of Municipal Solid Waste with Municipal Sludge with Or Without Microwave Pre-treatment available in PDF, EPUB and Kindle. Anaerobic co-digestion of organic fraction of municipal solid waste (OFMSW), with thickened waste activated sludge (TWAS) and primary sludge (PS) has the potential to enhance (biodegradation) of solid waste, increase longevity of existing landfills and lead to more sustainable development by improving waste to energy production. This study reports on mesophilic batch anaerobic biological methane potential (BMP) assays carried out with different concentrations and combinations (ratios) of OFMSW, TWAS (microwave (MW) pre-treated and untreated) and PS to assess digester stability and potential improved specific biodegradability and potential increased specific biogas production by digestion of OFMSW with PS and TWAS in various tri-substrate mixtures. Results indicated improvements in specific biogas production with concomitant improvements in COD and volatile solid (VS) removal for co-digestion of OMSW, TWAS and PS vs. controls. In terms of improvements in biogas production and digester stability the OFMSW:TWAS:PS:50:25:25 ratio with or without TWAS MW treatment was deemed best for further continuous digester studies. At a 15d HRT which is the regulatory policy in the province of Ontario for municipal mesophilic anaerobic TWAS:PS treatment, co-digestion of OFMSW:TWAS:PS, and OFMSW:TWASMW:PS resulted in a 1.38 and 1.46 fold relative improvement in biogas production and concomitant waste stabilization when compared to TWAS:PS and TWASMW:PS digestion at the same HRT and volumetric VS loading rate respectively. Treatment of OFMSW with PS and TWAS provides beneficial effects that could be exploited at MWWTP that are being operated at loading rates less than design capacity.
Biomethanization of the Organic Fraction of Municipal Solid Wastes
Biomethanization of the Organic Fraction of Municipal Solid Wastes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Biomethanization of the Organic Fraction of Municipal Solid Wastes write by J. Mata-Alvarez. This book was released on 2002-08-31. Biomethanization of the Organic Fraction of Municipal Solid Wastes available in PDF, EPUB and Kindle. Biomethanization of the Organic Fraction of Municipal Solid Wastes is a comprehensive introduction to both the fundamentals and the more practical aspects of the anaerobic digestion of organic solid wastes, particularly those derived from households, that is, the organic fraction of municipal solid wastes (OFMSW). It can be used as a textbook for specialized courses and also as a guide for practitioners. In the first part, the book covers the relevant aspects of anaerobic digestion (AD) of organic wastes. The fundamentals and kinetic aspects of AD are reviewed with particular emphasis on the aspects related to solid wastes. This introduction is necessary to have a comprehensive view of the AD process and to understand the practical principles as well as the origin of possible problems arising from the management of the process. Chapter 2 emphasizes the role of kinetics in designing the reactor, paying special attention to existing models, particularly the dynamic ones. Through this introduction, it is intended to facilitate the technology transfer from laboratory or pilot plant experiences to full-scale process, in order to implement improvements in current digesters. Laboratory methods are described for the analysis and optimization of reactor performance, such as methanogenic activity tests or experimental evaluation of the biodegradation kinetics of solid organic waste. The different reaction patterns applied to industrial reactors are outlined. Industrial reactors are classified in accordance with the system they use, pointing out advantages and limitations. Co-digestion, enabling the co-treatment of organic wastes of different origin in a more economically feasible way, is described in detail. Examples of co-digestion are given, with OFMSW as a base-substrate. Finally, full-scale co-digestion plants are discussed. Various types (mechanical, biological, physico-chemical) of pre-treatment to increase the biodegradability, and thus the yields of the process, are reviewed in detail. The use of the fermentation products of anaerobic digesters for biological nutrient removal processes in wastewater treatment plants is described. This constitutes an example of integrated waste management, a field in which both economic and technical advances can be achieved. Balances are given to justify the approach, and a full-scale case study is presented. The important topic of economics and the ecological advantages of the process are emphasized. The use of compost, the integration with composting technology, and advantages over other technologies are detailed in the framework of an environmental impact assessment of biowaste treatment. Finally, the anaerobic digestion of MSW in landfills is reviewed in detail, with emphasis on landfill process enhancement and strategies for its application.
Enhancement of Anaerobic Digestion of Organic Fraction of Municipal Solid Waste by Microwave Pretreatment
Enhancement of Anaerobic Digestion of Organic Fraction of Municipal Solid Waste by Microwave Pretreatment - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Enhancement of Anaerobic Digestion of Organic Fraction of Municipal Solid Waste by Microwave Pretreatment write by Haleh Shahriari Zavareh. This book was released on 2011. Enhancement of Anaerobic Digestion of Organic Fraction of Municipal Solid Waste by Microwave Pretreatment available in PDF, EPUB and Kindle.
Anaerobic Co-digestion of Municipal Solid Waste and Sewage Sludge
Anaerobic Co-digestion of Municipal Solid Waste and Sewage Sludge - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Anaerobic Co-digestion of Municipal Solid Waste and Sewage Sludge write by Nancy Hamzawi. This book was released on 1997. Anaerobic Co-digestion of Municipal Solid Waste and Sewage Sludge available in PDF, EPUB and Kindle. As a solution to the problems of municipal solid waste management, anaerobic digestion possesses the optimal combination of volume reduction, probability of success and potential for both energy and resource recovery. An innovative application of anaerobic processes is the co-digestion of sewage sludge and the organic fraction of municipal solid waste (OFMSW). The purpose of this study is to evaluate the technical feasibility of this process in the context of typical Canadian solid waste. Lab-scale experiments were initially conducted using one litre batch bioreactors operated mesophilically (37$\sp\circ$C) and fed a mixture of primary sludge (RAW), thickened waste activated sludge (TWAS) and simulated OFMSW. To facilitate organics solubilization, three pretreatments were evaluated: thermal, alkaline and thermochemical. Using a central composite experimental design, two factors were studied, the total solids content of the feed and its particle size. For all three pretreatments, second order empirical models were developed with respect to common indicators of metabolic activity, namely, biogas production, biogas methane concentration, soluble chemical oxygen demand (COD) removal and total and volatile solids reduction. (Abstract shortened by UMI.).
Co-digestion of Municipal Solid Waste and Wastewater Treatment Plant Sludges
Co-digestion of Municipal Solid Waste and Wastewater Treatment Plant Sludges - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Co-digestion of Municipal Solid Waste and Wastewater Treatment Plant Sludges write by Daniel Thomas Rich. This book was released on 1993. Co-digestion of Municipal Solid Waste and Wastewater Treatment Plant Sludges available in PDF, EPUB and Kindle.
