Treatment method of pyrazole pesticide production wastewater

Treatment method of pyrazole pesticide production wastewater

The invention discloses a treatment method of pyrazole pesticide production wastewater. The method comprises: adjusting the pH value of pyrazole pesticide production wastewater to 5-7 so as todissociatethe pyrazole pesticide production wastewater from the wastewater; enabling the wastewater subjecte...

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Hauptverfasser: LI ZHIQING, LIANG QIAN, DONG SHUWEI, SONG WEI, PANG LIFEI, LIU YANWEI, LING XIAOGUANG, YANG HAILONG, WANG FENG, JIANG CHAO, ZHAO LINGSHU
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Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator LI ZHIQING
LIANG QIAN
DONG SHUWEI
SONG WEI
PANG LIFEI
LIU YANWEI
LING XIAOGUANG
YANG HAILONG
WANG FENG
JIANG CHAO
ZHAO LINGSHU
description The invention discloses a treatment method of pyrazole pesticide production wastewater. The method comprises: adjusting the pH value of pyrazole pesticide production wastewater to 5-7 so as todissociatethe pyrazole pesticide production wastewater from the wastewater; enabling the wastewater subjected to pH regulation to pass through a resin column, and adsorbing pyrazole compounds in the wastewater; and desorbing the resin column by adopting an ethanol water solution, recovering ethanol from the eluent, and cooling and crystallizing the residual eluent to obtain the pyrazole compound; and concentrating the residual wastewater passing through the resin column, cooling and crystallizing to obtain inorganic salt. According to the present invention, according to the characteristic that the pyrazole compound contains the hydrophobic group of = N-NH-, the pH value of the wastewater is adjusted so as to dissociate the pyrazole compound from the wastewater, and then the specific styrene macroporous adsorption resin i
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subjects CHEMISTRY
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Treatment method of pyrazole pesticide production wastewater
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