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Lagoons

A lagoon is a large shallow reservoir with a sealed base which is filled with sludge, and the solids allowed to settle. Over a drying/dewatering operational cycle of several months, water is lost through evaporation while the solids form a thick layer at the base of the lagoon, stabilised by anaerobic biological processes

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Lagoons features and blogs

Blog sludge worth shutterstock 16047946
Blog

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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