Comprehensive treatment technology of electroplating wastewater

Comprehensive treatment technology of electroplating wastewater

The invention discloses a comprehensive treatment technology of electroplating wastewater. The comprehensive treatment technology comprises the following steps: firstly, collecting electroplating wastewater containing phosphorus, aluminum, cobalt and manganese; secondly, adding a sodium hydroxide so...

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Hauptverfasser: HUANG ZHIWEI, JIAN HAORAN, LIU HONGBO
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator HUANG ZHIWEI
JIAN HAORAN
LIU HONGBO
description The invention discloses a comprehensive treatment technology of electroplating wastewater. The comprehensive treatment technology comprises the following steps: firstly, collecting electroplating wastewater containing phosphorus, aluminum, cobalt and manganese; secondly, adding a sodium hydroxide solution into the wastewater, adjusting the pH value of the wastewater, adding a compound oxidant andcarrying out oxidation reaction; thirdly, soaking a cathode pole piece of a waste nickel cobalt manganese ternary lithium battery into acid liquor, adding a reducing agent into the acid liquor, heating, stirring and filtering to obtain filtrate; fourthly, mixing the wastewater in the second step with the filtrate in the third step, adjusting the pH value and adjusting the contents of nickel, cobalt and manganese in the mixed solution to obtain adjusted stoste; fifthly, introducing CO2 gas into the adjusted stoste in the fourth step to obtain a solid material; sixthly, drying the solid materialobtained in the fifth ste
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subjects BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Comprehensive treatment technology of electroplating wastewater
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