Untreated wastewater sludges have been successfully composted without the addition of bulking agents - straw, paper, green or municipal wastes - to form a stable soil conditioner.The advantages of this process are the minimal loss of nutrients, linked with a reduction in organic and volatile matter and moisture content. There are savings associated with construction, handling, transport and distribution costs.This material is one of a range of products manufactured by the company for beneficial reuse in agricultural land. If deregulation of current sludge legislation occurs, it is anticipated that this product will be in demand for other markets.Following successful trials at Horsham Wastewater Treatment Works, Sussex, Southern Water has formed a partnership with Sevar GmbH, Brackett Polcon and Tilbury Douglas Construction to build a pilot plant to 2000 tonnes of dry solids per annum of dewatered wastewater cake at the new Weatherlees Wastewater Treatment Plant on the East Kent Coast, at a cost of £3M.
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- Composting Wastewater Sludges Without the Addition of Bulking Agents
C. J. Pullin
J. L. Lawrence
- Springer Netherlands