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- aggregation classification "A1".
- aggregation creator person.
- aggregation creator person.
- aggregation date "2000".
- aggregation format "application/pdf".
- aggregation hasFormat 133430.bibtex.
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- aggregation isPartOf urn:issn:0959-3330.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "Inhibition of activated sludge by nitrite in the presence of proteins or amino acids".
- aggregation abstract "Under certain circumstances nitrite can accumulate in activated sludge treatment systems. The influence of a sudden increase of nitrite concentration on the overall removal processes in semi-continuous activated sludge reactors was investigated. It was found that the moment of occurrence of the nitrite peak is important in relation to the time of feeding. Addition of nitrite together with protein rich feed resulted in a higher inhibition of both COD and nitrogen removal, although nitrite itself had totally disappeared within a period of two days. Testing of different doses of nitrite situated the critical dose of single shock addition of nitrite in the range of 50 to 100 mg NO2--N l(-1). The effluent of the reactors turned yellow after dosing nitrite and feed. It was additionally found that nitrite at relatively high concentrations can react with amino acids to form a yellow compound or compounds. The latter appeared to be more toxic than nitrite alone. Hence. such yellow nitrite reaction products should be watched for in reactors operated in uncoupled nitrification conditions, i.e. stopped at nitrite, with protein rich influents.".
- aggregation authorList BK298148.
- aggregation endPage "1125".
- aggregation issue "10".
- aggregation startPage "1119".
- aggregation volume "21".
- aggregation aggregates 867438.
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- aggregation similarTo LU-133430.