Topic
Sludge treatment - the anaerobic digestion process
Anaerobic digestion (AD) is the most extensively employed sludge stabilisation process, and generates a methane gas product
Anaerobic digestion
Anaerobic digestion − an introduction to process design
Anaerobic digestion (AD) is the most extensively employed sludge stabilisation process and, as with most sludge and wastewater unit processes, the design and performance of AD depends on the feed characteristics. Professor Simon Judd explains
Topic
Sludge treatment − how does anaerobic digestion work?
Anaerobic digestion is a multi-step biochemical process comprising hydrolysis, acidogenesis, acetogenesis and methanogenesis
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Challenges to anaerobic digestion in sludge treatment
Two widely recognised operational challenges to anaerobic digestion operation are foaming and over-acidification
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‘Membrane bioreactor’ (MBR) is a term used to define wastewater treatment processes where a perm-selective membrane is integrated with a suspended growth bioreactor. Find out more
Topic
Designing anaerobic digestion systems for sludge treatment
Anaerobic digestion can be a single or multiple tank process, and employ different conditions of stirring and temperature
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How much is sludge worth?
The UK regulator OFWAT has introduced legislation based on the notion of sludge as a resource. Its value is often expressed in terms of calorific content, and the phosphate is also potentially recoverable. But how exactly should sludge value be quantified?
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