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вторичная обработка
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[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
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secondary treatment
Stage of the process of waste water treatment: following primary treatment by sedimentation, the second step in most wastewater systems in which biological organisms decompose most of the organic matter into a innocuous, stable form. (Source: CORBIT / WQA)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
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