C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/3
C02F 3/28 (2006.01) C02F 3/10 (2006.01)
Patent
CA 1234229
"PROCESS AND APPARATUS FOR THE ANAEROBIC BIOLOGICAL PURIFICATION OF WASTEWATER" Abstract In a process for the anaerobic biological purification of wastewater containing organic pollutants, the wastewater to be purified is conducted through two series-connected reactors (2 and 5) operated under anaerobic conditions. In order to achieve a shortening of the residence time for the wastewater to be purified and thereby a savings in total reactor volume, the pollutants contained in the wastewater, which are present partially in the undissolved, partially in the macromolecular state and are only slowly metabolizable under anaerobic conditions, are retained in the first reactor (2) by means of a filter medium (3) arranged in the first reactor (2). On the other hand, polIutants initially present in the dissolved condition in the wastewater and which are readily degradable by anaerobic microorganisms, are further conducted directly through the first reactor, without substantial conversion, into the second reactor ((5) though a connecting conduit (4). In the first reactor (2), the residenca time of only the slowly metabolizable pollutants is determined:to be sufficient 50 that the latter are degraded to low-molecular, dissolved fragments. Subsequentlyl the dissolved fragments are introduced into the second reactor (S) together with the initially rapidly degradable pollutants.
459665
Fuchs Uwe
Morper Manfred
Johnson Ernest Peter
Linde Aktiengesellschaft
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