Method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron

Method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron

The invention discloses a method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron. The polymeric ferric sulfate is a novel inorganic sewage flocculant, is an iron inorganic polymeric flocculant, is high in flocculation force and sedimentation velocity, a...

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Hauptverfasser: YU WENHAI, LI SHUMEI, SUN JINGYAN, ZHANG RUILIN, MAO SHILIANG, YANG BINGDONG, FENG SHUYUAN, ZHAO JIAYING, MENG XIANGJUAN
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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 YU WENHAI
LI SHUMEI
SUN JINGYAN
ZHANG RUILIN
MAO SHILIANG
YANG BINGDONG
FENG SHUYUAN
ZHAO JIAYING
MENG XIANGJUAN
description The invention discloses a method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron. The polymeric ferric sulfate is a novel inorganic sewage flocculant, is an iron inorganic polymeric flocculant, is high in flocculation force and sedimentation velocity, and has remarkable removal effects on some heavy metal irons, COD (chemical oxygen demand), chromaticity, stink and the like during sewage treatment. An existing polymeric ferric sulfate production method is low in yield and serious in pollution during the production process. The method comprises the following steps: (1) reacting the raw materials, i.e. the waste acid and the scrap iron, to obtain ferrous iron; (2) performing oxidization reaction to obtain ferric iron by adopting potassium chlorate as an oxidant; (3) performing hydrolysis reaction; (4) carrying out a polymerization process of conversion from a low polymer to a high polymer to obtain the polymeric ferric sulfate. By the method, the polymeric ferric s
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The polymeric ferric sulfate is a novel inorganic sewage flocculant, is an iron inorganic polymeric flocculant, is high in flocculation force and sedimentation velocity, and has remarkable removal effects on some heavy metal irons, COD (chemical oxygen demand), chromaticity, stink and the like during sewage treatment. An existing polymeric ferric sulfate production method is low in yield and serious in pollution during the production process. The method comprises the following steps: (1) reacting the raw materials, i.e. the waste acid and the scrap iron, to obtain ferrous iron; (2) performing oxidization reaction to obtain ferric iron by adopting potassium chlorate as an oxidant; (3) performing hydrolysis reaction; (4) carrying out a polymerization process of conversion from a low polymer to a high polymer to obtain the polymeric ferric sulfate. 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METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron
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