Method and device for comprehensively purifying wastewater containing heavy metal ions and organics

Abstract

The invention belongs to a method and a device for comprehensively purifying wastewater containing heavy metal ions and organics. The method comprises the following steps: blending and mixing different types of mud-containing sewage in a homogenization tank according to different chemical indexes and measured data of the mud-containing sewage in all wastewater recycle pools, so that the chemical indexes of the mud-containing sewage are changed, the water amount is uniform and floccules are formed, or pollutants in the water are precipitated. A mechanical purifying device comprises a base, a mud sewage magnetization tank, an electrolyzing and magnetizing machine, a medicine blending, flocculating and feeding tank and a mud-water separator. The method and the device disclosed by the invention can be used for comprehensively purifying industrial wastewater containing pollutants such as heavy metal ions, suspended solids and organics, and has the advantages that purifying equipment construction cost is low, the treatment cost is low and good energy conservation and environmental pollution effect and good purification effect are achieved.

Description

technical field [0001] The invention belongs to a method for purifying industrial waste water containing heavy metal ions, suspended solids, organic matter and other pollutants and a device used therein. Background technique [0002] Industrial wastewater (or muddy sewage) containing heavy metal ions, suspended solids, organic matter and other pollutants is one of the key pollution sources in my country's industrial system. These muddy sewage mainly come from mechanical processing, mining, textile printing and dyeing industries and The extraction and purification of various metal elements, the large amount of muddy sewage discharge, the concentration of various metal ions in the water, the concentration of suspended solids and the concentration of organic matter, etc., all greatly exceed the harmless discharge standards stipulated by the state. The discharge of these muddy sewage will cause serious pollution to the natural environment and endanger the living environment of or...

AI Technical Summary

Problems solved by technology

The discharge of these muddy sewage will cause serious pollution to the natural environment and endanger the living environment of organisms and human beings.

[0003] At present, the treatment of this kind of muddy sewage mainly relies on purification methods such as sedimentation, aeration and sand sedimentation, chemical dosing, grille or mechanical filtration, but these treatment methods for this kind of muddy sewage have long-term effects and are expensive; and each The polluting enterprises establish their own purification facilities, which has the disadvantages of high cost, high energy consumption, high treatment cost and poor purification effect.

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