Coagulant for treating polysulfonate slurry sewage

The invention discloses a coagulant for treating polysulfonate slurry sewage. The coagulant for treating the polysulfonate slurry sewage provided by the invention comprises calcium hydroxide or calcium oxide, and ferric sulfate or ferrous sulfate. The coagulant for treating the polysulfonate slurry...

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Bibliographic Details
Main Authors WANG WEI, LI PENG, ZHONG RUNZHI, YANG BINZHONG, TIAN QINGHUA, REN YONGJIE, LIU TAO
Format Patent
LanguageChinese
English
Published 21.11.2012
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The invention discloses a coagulant for treating polysulfonate slurry sewage. The coagulant for treating the polysulfonate slurry sewage provided by the invention comprises calcium hydroxide or calcium oxide, and ferric sulfate or ferrous sulfate. The coagulant for treating the polysulfonate slurry sewage provided by the invention is used for treating the sewage containing polysulfonate slurry; the CODCr (Chemical Oxygen Demand) of the treated sewage is reduced by 70-85 percent; the chrominance is determined by using a dilution multiple method and can be reduced to 180-220; the subsequent physicochemical treatment and biochemical treatment can more easily reach standards; and the treatment cost is low.
Bibliography:Application Number: CN201210275209