羊毛紡績工場廃水の生物学的処理について

概要

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The treatment of wool spinnery waste was investigated by a laboratory test and a pilot Plant test. Equipment for the treatment on an industrial scale was built and an attempt to its industrial application was carried out.This treatment method is as follows : 1)the wool scouring waste is treated by the thermophilic methane fermentation;2) this digestive fluid and other waste (dye-colour waste and back washer waste etc.) are mixed and temporarily this mixed fluid is reserved in a lagoon;3) this fluid is treated by the activated sludge process;The results of this test were as follows;1) The maximum loading of methane fermentation was 80 m^3 of scouring waste per 300m^3 of digester・day, and the gas yield was about 300 m^3 per day (CH_4 : about 75%)2) The maximum loading of activated sludge process was about 2.5 kg BOD per m^3 aerator・day.3) Under these conditions the final effluent was transparent, odorless and light brown and 98% BOD, 80% grease, 87% suspended solid and 58% organic matter were removed from the original untreated waste.And the analysis of effluent was BOD : 45〜67 ppm, grease : 234〜268 ppm, suspended solid : 82〜320 ppm.4) The running cost of the treatment was 4.7 Yen per m^3 waste.From the above test, it was evidenced that this new-method of wool spinnery waste treatment can be put in practice at a factory.
社団法人日本生物工学会の論文
1964-05-15