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Influence Of Different Temperature And Aeration Regulation Strategies On Respiration In Composting Of Organic Household Waste
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Book Synopsis Influence of Different Temperature and Aeration Regulation Strategies on Respiration in Composting of Organic Household Waste by : Sven Smårs
Download or read book Influence of Different Temperature and Aeration Regulation Strategies on Respiration in Composting of Organic Household Waste written by Sven Smårs and published by . This book was released on 2002 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EFFECT OF DIFFERENT MODES OF A by : Quazi Hamidul Bari
Download or read book EFFECT OF DIFFERENT MODES OF A written by Quazi Hamidul Bari and published by Open Dissertation Press. This book was released on 2017-01-27 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Effect of Different Modes of Aeration on Composting of Solid Waste in a Closed System" by Quazi Hamidul, Bari, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled EFFECT OF DIFFERENT MODES OF AERATION ON COMPOSTING OF SOLID WASTE IN A CLOSED SYSTEM submitted by QUAZI HAMIDUL BARI for the Degree of Doctor of Philosophy at the University of Hong Kong in April 1999 Composting has become increasingly popular in the past decade as a biological treatment process for organic solid wastes, with the purpose of recovery, stabilization and volume reduction of waste material in the form of compost. Different modes of forced aeration composting, using two heat insulated closed pilot-scale reactors were investigated in this study. The specific objectives were to evaluate (i) the distribution of physico-chemical parameters including temperature and moisture throughout the height of the composting mass; (ii) the rate and extent of organic waste degradation during composting; and (iii) the order of reaction rates and their dependence on temperature. The modes of aeration studied were upflow, downflow, alternate upflow/downflow, and internal recirculation in a single-reactor system as well as reuse of spent air in a two-reactor system in series. To accomplish the above objectives, eighteen pilot-scale tests were performed, as first, second and third stage composting process of 20 to 30 days duration each. Temperature at different heights of the composting mass as well as air velocity were continuously monitored by datalogger. Air flow was continuous or intermittent depending on temperature. Oxygen content in the spent air was regularly measured. Addition of water or recycling of leachate was applied as needed. At the beginning and end of each composting test, the initial waste mixture (food waste and waste paper) and/or compost was analyzed with regard to the most relevant physico- chemical parameters. The product stability was determined by the self-heating test. For comparison, several bench-scale composting tests were performed using similar waste mixtures. The results showed significant vertical distribution of different physico-chemical parameters in the composting mass along the airflow directions. The upflow aeration mode produces high temperature, moisture content, pH and NH -N concentration in the top layers of the composting mass and vice-versa for the downflow aeration mode. Specifically it was found that: 1. Alternate upflow/downflow aeration with addition of water achieves more equal distribution of temperature, moisture and other physico-chemical parameters throughout the height of the composting mass, than other aeration modes. 2. Application of alternate upflow/downflow aeration and internal air recirculation accelerates the composting process. 3. Completely stable compost was produced after second stage composting in the two-reactor system, whereas the compost after second stage composting from the single reactor system did not achieve complete stability despite the same or increased total composting time. 4. Temperature dependence of the reaction rates of different aeration mode composting tests followed the Arrhenius equation. 5. The actual reaction rates were most closely approximated by first order reaction rates. 6. The extent of overall degradation in a closed composting system can be predicted based on outlet air temperature instead of average internal temperature. 7. The extent of degradation in different layers of the composting mass can be estimated by multilayer analysis using first o
Book Synopsis Advanced Technologies for Solid, Liquid, and Gas Waste Treatment by : Saleh Al Arni
Download or read book Advanced Technologies for Solid, Liquid, and Gas Waste Treatment written by Saleh Al Arni and published by CRC Press. This book was released on 2023-04-05 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Technologies for Solid, Liquid, and Gas Waste Treatment presents the potential of using advanced and emerging technologies to effectively treat waste. This book uniquely addresses treatment techniques for waste in all three phases, solid, liquid, and gas, with the goals of mitigating negative impacts of waste and producing valued-added products, such as biogas and fertilizer, as well as the use of artificial intelligence in the field. • Covers a wide range of advanced and emerging treatment technologies such as photocatalysis processing, adsorptive membranes, pyrolysis, advanced oxidation process, electrocoagulation, composting technologies, etc. • Addresses issues associated with wastes in different phases. • Discusses the pros and cons of treatment technologies for handling different wastes produced by different industrial processes, such as agricultural biomass, industrial/domestic solid wastes, wastewater, and hazardous gas. • Includes application of artificial intelligence in treatment of electronic waste. This book will appeal to chemical, civil, and environmental engineers working on waste treatment, waste valorization, and pollution control.
Book Synopsis Temperature Feedback and Control Via Aeration Rate Regulation in Biological Composting Systems by : Steven George Hall
Download or read book Temperature Feedback and Control Via Aeration Rate Regulation in Biological Composting Systems written by Steven George Hall and published by . This book was released on 1998 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biofuel Production Using Anaerobic Digestion by : Kaliappan Sudalyandi
Download or read book Biofuel Production Using Anaerobic Digestion written by Kaliappan Sudalyandi and published by Springer Nature. This book was released on 2022-08-29 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides lucid and instructive information about waste biomass, its potential, and the methods employed in energy generation. Topics covered include the basic principles, applications, recent advances, and the technical and economic considerations of waste-to-energy (WTE) technology. It highlights and elucidates essential concepts, mechanisms, applications, and useful outcomes of WTE technologies. In addition, it also provides a few example problems with design data for energy generation from waste biomass which will help the readers to understand the basics of WTE technologies. The book is structured with an overview at the start of each chapter presenting an outline of its content and a list of relevant discussions targeted toward readers. To illustrate the types of waste biomass, principles, and process of various thermal and biochemical process technologies, over 90 illustrations including graphs, diagrams, and photographs are provided. To help the readers improve their knowledge of the subject and to increase the utility of this book, the characteristics of waste biomass, operation conditions of different processes, and global status of WTE technologies are provided in tabular format. For that purpose, over 50 tables are provided. Selected references are also provided for this book. This book is primarily intended for researchers and professionals working in the area of bioenergy. It can also be used as a primary or secondary text for graduate courses and professional training programs.
Book Synopsis Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery by : Cofie, Olufunke
Download or read book Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery written by Cofie, Olufunke and published by IWMI. This book was released on 2016-12-05 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological treatment, composting, in particular, is a relatively simple, durable and inexpensive alternative for stabilizing and reducing biodegradable waste. Co-composting of different waste sources allows to enhance the compost nutrient value. In particular, integration of ‘biosolids’ from the sanitation sector as potential input material for co-composting would provide a solution for the much needed treatment of fecal sludge from on-site sanitation systems, and make use of its high nutrient content. This research paper elaborates in detail the main parameters that govern the co-composting process as well as factors that control the production of a safe and valuable quality compost. It further explains technological options to tailor the final product to crop and farmer needs.
Book Synopsis The Science of Composting by : Marco de Bertoldi
Download or read book The Science of Composting written by Marco de Bertoldi and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 1449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Union initially demonstrated its interest in waste in the late 70s with the progamme on Waste Recycling Research and Development. At that time composting was only present as a coordination activity and it was only later that specific research programmes in the area were within Europe which was largely instrumental in setting up a series of European conferences, seminars and work shops. Some of these have resulted in publications which have made significant contributions to developments in the understanding of composting and the use of composts. In particular the outputs from meetings in Oxford ( 1984), Udine (1986), Neresheim ( 1988) and Angers ( 1991) are worthy of note. Composting has seen significant changes since the 70s when the major thrust in Europe was using mixed municipal solid waste as a feed material. Many com posting plants which were built to use this material were closed due to the poor quality of the compost which made it very difficult to market. As a result the main areas of interest, as far as the municipa1ities are concemed, are now with biowaste and source-separated organics. This interest is apparent from the many new plants which are being constructed across Europe, and the ready market which exists for the products. In parallel with the renewed interest of the municipalities other areas, such as agriculture and the wastewater treatment industries, are also developing their own schemes.
Download or read book BioCycle written by and published by . This book was released on 2002 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Journal of composting & recycling.
Book Synopsis Effect of Different Modes of Aeration on Composting of Solid Waste in a Closed System by : Hamidul Bari Quazi
Download or read book Effect of Different Modes of Aeration on Composting of Solid Waste in a Closed System written by Hamidul Bari Quazi and published by . This book was released on 1999 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Science and Engineering of Composting by : Harry A. J. Hoitink
Download or read book Science and Engineering of Composting written by Harry A. J. Hoitink and published by Renaissance Publications. This book was released on 1993 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I: Composting process: microbiology, engineering, systems and infrastructure; Part II: odor prevention and control: prevention and treatment; Part III: Pathogen destruction: worker and neighborhood impacts; Part IV: Biodegradation of organic pollutants during composting: pesticides, macromolecules and safety assessment; Part V: Heavy metals in composts: general considerations; Part VI: Compost maturity and stability; Part VII: Beneficial effects induced by composts; Part VIII: Economic considerations.
Book Synopsis Theoretical and Experimental Studies on the Effects of Aeration Strategies on the Composting Process by : Kamil Ekinci
Download or read book Theoretical and Experimental Studies on the Effects of Aeration Strategies on the Composting Process written by Kamil Ekinci and published by . This book was released on 2001 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Waste Recycling by : Chongrak Polprasert
Download or read book Organic Waste Recycling written by Chongrak Polprasert and published by . This book was released on 1989 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Composting Technologies by : Alessandro Chiumenti
Download or read book Modern Composting Technologies written by Alessandro Chiumenti and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Practical Handbook of Compost Engineering by : Roger Tim Haug
Download or read book The Practical Handbook of Compost Engineering written by Roger Tim Haug and published by CRC Press. This book was released on 1993-07-23 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Practical Handbook of Compost Engineering presents an in-depth examination of the principles and practice of modern day composting. This comprehensive book covers compost science, engineering design, operation, principles, and practice, stressing a fundamental approach to analysis throughout. Biological, physical, chemical, thermodynamic, and kinetic principles are covered to develop a unified analytical approach to analysis and an understanding of the process. A brief history of the development of composting systems, which leads to descriptions of modern processes, is presented. The Practical Handbook of Compost Engineering also discusses the elements of successful odor management at composting facilities, including state-of-the-art odor treatment and enhanced atmospheric dispersion. The book is excellent for all engineers, practitioners, plant operators, scientists, researchers, and students in the field.
Book Synopsis The Science of Composting by : Eliot Epstein
Download or read book The Science of Composting written by Eliot Epstein and published by CRC Press. This book was released on 1996-12-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE PREFACE The main objective of composting is to transform organic materials into a stable usable product. Often organic materials which may have limited beneficial use in their raw state or have regulatory disposal constraints can be transformed by composting into marketable products. The limits on beneficial reuse may be regulations or they may be due to the potential for materials to be putrescible or pathogenic. Composting can be a solution for each of these. The implementation of composting on a large scale (in contrast to home or backyard composting) involves materials handling. Technological implementation of composting must be consistent with the biological demand of the system. If the biological system is violated, conditions will not be optimized for composting, and problems such as odor generation, insufficient aeration or moisture, or a combination of these conditions may result. Past problems and closure of facilities have been largely due to violations of the biological systems. Product quality with respect to particle size, inclusions, moisture content and other physical aspects are a function of engineering design. A well designed system must have the biological and engineering principles in harmony at all times.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992-03 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composting in the Classroom by : Nancy M. Trautmann
Download or read book Composting in the Classroom written by Nancy M. Trautmann and published by Kendall/Hunt Publishing Company. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Promote inquiry-based learning and environmental responsibility at the same time. Composting in the Classroom is your comprehensive guide offering descriptions of a range of composting mechanisms, from tabletop soda bottles to outdoor bins. Activities vary in complexity -- you can use this as a whole unit, or pick and choose individual activities.
