Youth, Street Culture, and Urban Violence in Africa PDF Download

Author: Pius Adesanmi
Publisher: African Bookbuilders
ISBN:
Category : City children
Languages : en
Pages : 56

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Author: Joyeeta Gupta
Publisher:
ISBN: 9781895536294
Category : Climatic changes
Languages : en
Pages : 98

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Author: Dieter Deublein
Publisher: John Wiley & Sons
ISBN: 3527318410
Category : Science
Languages : en
Pages : 469

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Book Description
Written as a practical introduction to biogas plant design and operation, this book fills a huge gap by presenting a systematic guide to this emerging technology -- information otherwise only available in poorly intelligible reports by US governmental and other official agencies. The author draws on teaching material from a university course as well as a wide variety of industrial biogas projects he has been involved with, thus combining didactical skill with real-life examples. Alongside biological and technical aspects of biogas generation, this timely work also looks at safety and legal aspects as well as environmental considerations.

Author: J. Mata-Alvarez
Publisher: IWA Publishing
ISBN: 1900222140
Category : Science
Languages : en
Pages : 292

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Book Description
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.

Author: Michael H. Gerardi
Publisher: John Wiley & Sons
ISBN: 0471468959
Category : Science
Languages : en
Pages : 189

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Book Description
Anaerobic digestion is a biochemical degradation process that converts complex organic material, such as animal manure, into methane and other byproducts. Part of the author's Wastewater Microbiology series, Microbiology of Anareboic Digesters eschews technical jargon to deliver a practical, how-to guide for wastewater plant operators.

Author: Barbara Sladonja
Publisher: BoD – Books on Demand
ISBN: 953510697X
Category : Science
Languages : en
Pages : 242

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Book Description
Protected areas are at the base of the most national and international conservation strategies. Due to the many unpredictable elements in ecology matters, each protected area requires a case-specific set of guidelines but a common issue is how to cope with human interaction. The management of protected areas is replete with challenges and the only way to gain understanding and achieve greater management possibilities is to exchange experiences and knowledge. Environmental managers are aware of that and together with scientists are looking for more modern and better solutions, both with respect to natural resources and human interactions in many issues regarding nature protection. This publication presents reviews and research results on protected areas management, as well as 12 case studies derived from around the world with the aim of improving management effectiveness of the protected areas.

Author: Nicholas Korres
Publisher: Routledge
ISBN: 1136489630
Category : Technology & Engineering
Languages : en
Pages : 627

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Book Description
Interest in anaerobic digestion (AD), the process of energy production through the production of biogas, has increased rapidly in recent years. Agricultural and other organic waste are important substrates that can be treated by AD. This book is one of the first to provide a broad introduction to anaerobic digestion and its potential to turn agricultural crops or crop residues, animal and other organic waste, into biomethane. The substrates used can include any non-woody materials, including grass and maize silage, seaweeds, municipal and industrial wastes. These are all systematically reviewed in terms of their suitability from a biological, technical and economic perspective. In the past the technical competence and high capital investment required for industrial-scale anaerobic digesters has limited their uptake, but the authors show that recent advances have made smaller-scale systems more viable through a greater understanding of optimising bacterial metabolism and productivity. Broader issues such as life cycle assessment and energy policies to promote AD are also discussed.

Author:
Publisher:
ISBN:
Category : Biodiversity
Languages : en
Pages : 172

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Book Description

Author: Dele Olowu
Publisher: Lynne Rienner Publishers
ISBN: 9781588261731
Category : Political Science
Languages : en
Pages : 324

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Book Description
An exploration of why some decentralization reforms have led to viable systems of local governance in Africa, while others have failed. It outlines the key issues involved, provides historical context, and identifies the factors that have encouraged or discouraged success.

Author: Marc Sommers
Publisher: University of Georgia Press
ISBN: 0820338907
Category : Political Science
Languages : en
Pages : 310

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Book Description
Young people are transforming the global landscape. As the human popu­lation today is younger and more urban than ever before, prospects for achieving adulthood dwindle while urban migration soars. Devastated by genocide, hailed as a spectacular success, and critiqued for its human rights record, the Central African nation of Rwanda provides a compelling setting for grasping new challenges to the world's youth. Spotlighting failed masculinity, urban desperation, and forceful governance, Marc Sommers tells the dramatic story of young Rwandans who are “stuck,” striving against near-impossible odds to become adults. In Rwandan culture, female youth must wait, often in vain, for male youth to build a house before they can marry. Only then can male and female youth gain acceptance as adults. However, Rwanda's severe housing crisis means that most male youth are on a treadmill toward failure, unable to build their house yet having no choice but to try. What follows is too often tragic. Rural youth face a future as failed adults, while many who migrate to the capital fail to secure a stable life and turn fatalistic about contracting HIV/AIDS. Featuring insightful interviews with youth, adults, and government officials, Stuck tells the story of an ambitious, controlling government trying to gov­ern an exceptionally young and poor population in a densely populated and rapidly urbanizing country. This pioneering book sheds new light on the struggle to come of age and suggests new pathways toward the attainment of security, development, and coexistence in Africa and beyond. Published in association with the United States Institute of Peace