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What is Sludge

Membrane Technology for Water and Wastewater Treatment in Rural Regions
Viscous mixture of solid and liquid compounds discharged from the water treatment process.
Published in Chapter:
Conventional Water Treatments
DOI: 10.4018/978-1-7998-2645-3.ch006
Abstract
Conventional water treatments have several successive processes in series to produce potable water. This chapter talks about the conventional water treatment processes which are mainly used to treat water originated from freshwater sources. Besides, the discussion covers some typical water quality, both raw and treated, as well as the standards of water quality. One of the highlighted topics in this chapter is the common issues that are frequently happening in the conventional water treatment facilities around the rural regions experiencing tropical climate, which is centred on the issues affecting the raw water quality and treatment processes. The major issue during post-treatment which is on sludge management is also discussed by underlining some alternative to the traditional way of using sludge lagoons. Topics in this chapter provide a better perspective to the water treatment operators and students who are interested in this topic of major processes used in conventional water treatment plants as well as the common issues encountered.
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Circular Economy Experience: A Russian Perspective
Dust and fine particles precipitated during ore washing, waste products.
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Sewage Management and Treatment
Semi-solid substances and mostly organic suspended sewage solids that are produced as a by-product from the sewage treatment process.
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Anaerobic Digestion Enhancement With Microbial Electrolysis Cells: Is Biomethane Production the Direction to Go for Commercialization?
Sludge is semi-solid slurry and can be produced as part of numerous industrial processes. For example, sewage sludge refers to the residual material that is produced as a by-product during sewage treatment of wastewater. The term activated sludge refers to suspended sludge containing many active bacteria, which remove biodegradable substances from wastewater or waste activated sludge (WAS). WAS refers to excess sludge produced in an activated sludge system which must be processed in a further treatment chain.
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