Domestic Wastewater Treatment in Developing Countries
Earthscan, 2004 - Всего страниц: 311
Affordable and effective domestic wastewater treatment is a critical issue in public health and disease prevention around the world, particularly so in developing countries which often lack the financial and technical resources necessary for proper treatment facilities.This practical guide provides state-of-the-art coverage of methods for domestic wastewater treatment and provides a foundation to the practical design of wastewater treatment and re-use systems. The emphasis is on low-cost, low-energy, low-maintenance, high-performance 'natural' systems that contribute to environmental sustainability by producing effluents that can be safely and profitably used in agriculture for crop irrigation and/or in aquaculture, for fish and aquatic vegetable pond fertilization. Modern design methodologies, with worked design examples, are described for waste stabilization ponds, wastewater storage and treatment reservoirs; constructed wetlands, upflow anaerobic sludge blanket reactors, biofilters, aerated lagoons and oxidation ditches. This book is essential reading for engineers, academics and upper-level and graduate students in engineering, wastewater management and public health, and others interested in sustainable and cost-effective technologies for reducing wastewater-related diseases and environmental damage.
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What is Domestic Wastewater and Why Treat It?
Essential Microbiology and Biology
Biochemical Oxygen Demand Removal Kinetics
Domestic Wastewater Treatment Options
Domestic Wastewater Flows and Loads
Operation and Maintenance of WSP
Monitoring and Evaluation of WSP
Wastewater Storage and Treatment Reservoirs
Upflow Anaerobic Sludge Blanket Reactors
Simple Activated Sludge Variants
Wastewater Reuse in Agriculture
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activated sludge aerated lagoons algae algal ammonia anaerobic pond aquaculture Archaea Ascaris bacteria bacterium biofilters BOD loading BOD removal BOD5 cells cent Chapter 11 coli per 100 coliforms completely mixed concentration constructed wetlands crop irrigation depth developing countries discharge dissolved oxygen domestic wastewater E coli effluent quality egg/l embankment Environmental example excreta-related diseases facultative and maturation faecal bacteria faecal coliforms Figure filter fishpond grit guideline Helminth in-pond infection influent inlet kg/ha day Mara Marais maturation ponds mg/l nitrification nitrogen northeast Brazil numbers organic oxidation ditches oxygen demand parameters photosynthesis plug flow pond systems ponds Chapter population primary facultative ponds protozoa raw wastewater reactor risk river samples secondary facultative pond sedimentation sulphide surface suspended solids Table temperature thermocline treated wastewater UASBs unrestricted irrigation waste stabilization ponds wastewater flow wastewater re-use wastewater treatment wastewater-fed WSP systems WSTR
Стр. 275 - A Rational Theory for the Design of Sewage Stabilization Ponds in Central and South Africa," The Civil Engineer in South Africa 3(ll):l-23 (1961).
Avances en investigación y desarrollo en agua y saneamiento para el ...
Ограниченный просмотр - 2007