A short state-of-the-art-review in nutrient removal technologies is given and problems connected with nutrient removal in the activated sludge process enumerated. The present level of BOD and nutrient load to the Elbe in the Czech Basin and possible means of improvement are discussed. Seven municipal wastewater treatment plants, planned to be built in 1990-2000, are briefly described. The total capacity of these plants represents about 280000 kg BOD5/d and 29000 kg TKN/d.

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