Leaching device for processing heavy metal in house refuse and sludge by using citric acid

A technology of domestic garbage and washing equipment, which is applied in the restoration of polluted soil, etc., can solve the problems of low stability of organic compounds, no washing equipment, increase of cadmium solubility, etc., and achieve low maintenance cost, convenient maintenance, The effect of protecting the environment
CN102728608AInactive Publication Date: 2012-10-17GUANGXI LAIBIN TIANREN BIOLOGICAL ORGANIC FERTILIZER
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI LAIBIN TIANREN BIOLOGICAL ORGANIC FERTILIZER
Publication Date
2012-10-17
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a leaching device for processing heavy metal in house refuse and sludge by using citric acid, comprising a pedestal (4), a leacheate collecting tank (7), and a frame (8), wherein the periphery of the frame is provided with straight form support rotating rods (3), the axial two end portions of the straight form support rotating rods support a transmission chain, a crawler type filter screen conveyer belt (2) is fixed on the chain, a stainless steel sludge reserve tank (1) is fixed above the crawler type filter screen conveyer belt, an atomization spray system (6) is arranged above the stainless steel sludge reserve tank, and a set of filter screen cleaning devices (13) are arranged below the crawler type filter screen conveyer belt and above the leacheate collecting tank. The leaching device disclosed herein can continuously work, has large handling capacity, convenient maintenance, and low maintenance cost. The leaching device adopts bilayer rollers to drive and has no damage to the crawler type filter screen conveyer belt, thus multi-protection is realized, and the service life of the crawler type filter screen conveyer belt is prolonged.
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Description

technical field

[0001] The invention relates to a leaching device for treating heavy metals in municipal domestic garbage, in particular to a leaching device for treating heavy metals in domestic garbage sludge by using citric acid. Background technique

[0002] At present, with the rapid development of the economy and the continuous improvement of living standards, municipal solid waste is increasing at a rate of 8%. Urban household garbage includes household garbage, public places and street cleaning garbage, commercial household garbage, etc. Its main components are kitchen waste, waste paper, waste plastic, waste fabric, waste glass, vegetation, dust, etc. These domestic wastes not only cause a great waste of resources, but also cause environmental pollution, such as soil pollution, air pollution, and domestic water pollution.

[0003] The methods of dealing with domestic waste mainly include landfill, incineration and composting.

[0004] The landfill method is to bur...

Claims

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