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THE PERFORMANCE OF PILOT-SCALE PRIMARY-FACULTATIVE WASTE-STABILISATION PONDS IN THE UK
Ist Teil von
Journal (Chartered Institution of Water and Environmental Management), 2004-05, Vol.18 (2), p.107-111
Ort / Verlag
Oxford, UK: Blackwell Publishing Ltd
Erscheinungsjahr
2004
Link zum Volltext
Beschreibungen/Notizen
ABSTRACT
Three pilot‐scale primary‐facultative waste stabilisation ponds were constructed at Esholt sewage‐treatment works, Bradford. Each pond received screened sewage at different BOD loading rates over a two‐year period. Concentrations of BOD, SS, amm. N and chlorophyll‐a were measured weekly in summer and bi‐weekly in winter, and sludge accumulation was measured after 3, 9, 15 and 20 months. BOD and SS removals were consistently high, although they were lower in summer than in winter due to high levels of algae. The removal of amm, N was generally much better in summer than in winter ‐ the removal mechanism being most likely related to algal activities. Sludge accumulation rates were very low.