Temperature Feedback and Control Via Aeration Rate Regulation in Biological Composting Systems

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ISBN 13 :
Total Pages : 722 pages
Book Rating : 4.E/5 ( download)

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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:

The Practical Handbook of Compost Engineering

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Publisher : Routledge
ISBN 13 : 1351409514
Total Pages : 746 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis The Practical Handbook of Compost Engineering by : RogerTim Haug

Download or read book The Practical Handbook of Compost Engineering written by RogerTim Haug and published by Routledge. This book was released on 2018-05-04 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.

American Doctoral Dissertations

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Publisher :
ISBN 13 :
Total Pages : 806 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis American Doctoral Dissertations by :

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1997 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

EFFECT OF DIFFERENT MODES OF A

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Publisher : Open Dissertation Press
ISBN 13 : 9781374719033
Total Pages : 204 pages
Book Rating : 4.7/5 (19 download)

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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

The Role of Organic Matter in Modern Agriculture

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Publisher : Springer Science & Business Media
ISBN 13 : 9400944268
Total Pages : 312 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis The Role of Organic Matter in Modern Agriculture by : Y. Chen

Download or read book The Role of Organic Matter in Modern Agriculture written by Y. Chen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.

The Science of Composting

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Publisher : CRC Press
ISBN 13 : 9781566764780
Total Pages : 512 pages
Book Rating : 4.7/5 (647 download)

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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 512 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.

Perspectives on Science and Christian Faith

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Publisher :
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Perspectives on Science and Christian Faith by :

Download or read book Perspectives on Science and Christian Faith written by and published by . This book was released on 2002 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Influence of Different Temperature and Aeration Regulation Strategies on Respiration in Composting of Organic Household Waste

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Publisher :
ISBN 13 : 9789157661586
Total Pages : 27 pages
Book Rating : 4.6/5 (615 download)

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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:

BioCycle

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ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis BioCycle by :

Download or read book BioCycle written by and published by . This book was released on 1990 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Journal of composting & recycling.

Waste-Free Kitchen Handbook

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Publisher : Chronicle Books
ISBN 13 : 1452149437
Total Pages : 203 pages
Book Rating : 4.4/5 (521 download)

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Book Synopsis Waste-Free Kitchen Handbook by : Dana Gunders

Download or read book Waste-Free Kitchen Handbook written by Dana Gunders and published by Chronicle Books. This book was released on 2015-09-29 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This “slim but indispensable new guide” offers “practical tips and delicious recipes that will help reduce kitchen waste and save money” (The Washington Post). Despite a growing awareness of food waste, many well-intentioned home cooks lack the tools to change their habits. This handbook—packed with engaging checklists, simple recipes, practical strategies, and educational infographics—is the ultimate tool for using more and wasting less in your kitchen. From a scientist at the Natural Resources Defense Council come these everyday techniques that call for minimal adjustments of habit, from shopping, portioning, and using a refrigerator properly to simple preservation methods including freezing, pickling, and cellaring. At once a good read and a go-to reference, this handy guide is chock-full of helpful facts and tips, including twenty “use-it-up” recipes and a substantial directory of common foods.

Environmental Health and Science Desk Reference

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Publisher : Government Institutes
ISBN 13 : 1605907588
Total Pages : 916 pages
Book Rating : 4.6/5 (59 download)

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Book Synopsis Environmental Health and Science Desk Reference by : Frank R. Spellman

Download or read book Environmental Health and Science Desk Reference written by Frank R. Spellman and published by Government Institutes. This book was released on 2012-02-02 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Environmental Health and Science Desk Reference, authors Frank R. Spellman and Revonna M. Bieber define and explain the terms and concepts used by environmental professionals, environmental science professionals, safety practitioners and engineers, and non-science professionals. This is an essential reference for anyone working in environmental health, environmental science, and related fields.

Organic Waste Composting through Nexus Thinking

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Publisher : Springer Nature
ISBN 13 : 3030362833
Total Pages : 236 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Organic Waste Composting through Nexus Thinking by : Hiroshan Hettiarachchi

Download or read book Organic Waste Composting through Nexus Thinking written by Hiroshan Hettiarachchi and published by Springer Nature. This book was released on 2020-11-23 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic waste composting is another excellent example to demonstrate the power and the benefits of nexus thinking. Even though organic waste composting itself is not a new topic, those who want to start a new project or align an ongoing project with nexus thinking, find it difficult to gather the necessary information. With nine case studies from four continents, this book aims to fill above gap in literature. While current literature on composting is often found to be limited to either soil/agriculture sector or waste management sector, this book presents a combined point of view. This open access book starts with an introductory chapter that describes the need to bring the waste management aspects and soil nutrient management aspects of compost production into one integrated theme. The relevance of nexus thinking and the Sustainable Development Goals (SDGs) are also presented in this introduction. The first three chapters after the introduction covers composting from the solid waste management and its policy aspects, taking examples from three developing countries. The next three examples are mostly about the benefits composting can provide to the soil and agriculture. These examples are also from three developing countries, but with a mixture of urban as well as rural settings. Last three chapters present more insight into the latest developments taking examples from Europe, as well as new methods adapted from the traditional styles from Africa.

Selected Water Resources Abstracts

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ISBN 13 :
Total Pages : 972 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Selected Water Resources Abstracts by :

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Composting in the Classroom

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Publisher : Kendall/Hunt Publishing Company
ISBN 13 : 9780787244330
Total Pages : 0 pages
Book Rating : 4.2/5 (443 download)

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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.

Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery

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Publisher : IWMI
ISBN 13 : 9290908351
Total Pages : 52 pages
Book Rating : 4.2/5 (99 download)

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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.

Research Reporting Series

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ISBN 13 :
Total Pages : 592 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Research Reporting Series by :

Download or read book Research Reporting Series written by and published by . This book was released on 1972 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Excerpta Medica

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Publisher :
ISBN 13 :
Total Pages : 820 pages
Book Rating : 4.:/5 (28 download)

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Book Synopsis Excerpta Medica by :

Download or read book Excerpta Medica written by and published by . This book was released on 1986 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: