Treatment method for wastewater from dinitrobenzene production with benzene mixed acid nitrification

Treatment method for wastewater from dinitrobenzene production with benzene mixed acid nitrification

The invention provides a method for treating dinitrobenzene wastewater generated by the nitration of benzene mixed acid, wherein the method comprises the following steps: (1) acidification; (2) iron-carbon reduction; (3) condensation; (4) flocculating sedimentation; and (5) general biochemical treat...

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Hauptverfasser: HE XUBIN, DING JINNAN, TAO JIANGUO, ZHU JINGXIN, SU JIANJUN, GONG HAN, TAN YINGLONG, MENG MING, WANG XINWU
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator HE XUBIN
DING JINNAN
TAO JIANGUO
ZHU JINGXIN
SU JIANJUN
GONG HAN
TAN YINGLONG
MENG MING
WANG XINWU
description The invention provides a method for treating dinitrobenzene wastewater generated by the nitration of benzene mixed acid, wherein the method comprises the following steps: (1) acidification; (2) iron-carbon reduction; (3) condensation; (4) flocculating sedimentation; and (5) general biochemical treatment of sedimentation water. When the dinitrobenzene wastewater generated by the nitration of benzene mixed acid is treated by the method, the contents of the matters of nitrobenzene, nitrophenol and the COD in the wastewater are greatly reduced; after further biochemical treatment, the wastewater can easily meet the water discharge standard; and compared with the prior treatment technique, the method has the advantages of low cost and good effect.
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Treatment method for wastewater from dinitrobenzene production with benzene mixed acid nitrification
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