Gas-liquid-solid waste comprehensive treatment and resource utilization system

Abstract

The invention relates to a gas-liquid-solid waste comprehensive treatment and resource utilization system, which comprises a grinding device, a pulping device and a gasification device. The grinding device comprises a feeding device and a mill. The feeding device is fed with carbon-containing raw material solid waste, waste water liquid and additives, and a formed mixture is sent to the mill for grinding to form a slurry A, and the slurry A is sent to the pulping device; the pulping device comprises a pulping body, a mixing pulping intelligent guidance system and a modifying conditioning device, wherein the mixing pulping intelligent guidance system guides the modifying conditioning device to perform conditioning treatment and ultrasonic treatment on the slurry A passing into the pulping body to generate a slurry B. The gasification device comprises a gasification furnace, wherein the gasification furnace is fed with the slurry B, which is prepared from the carbon-containing raw material solid waste and the waste water liquid by the front grinding device and pulping device, for pyrolysis and gasification to generate usable gas. The system provided by the invention is a system for comprehensive treatment of solid waste, waste liquid and waste gas.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a system for comprehensive treatment and resource utilization of gas-liquid-solid waste. Background technique [0002] The amount of solid waste and hazardous waste from all walks of life in our country is huge and various. Most of the current treatment methods adopt traditional landfill and incineration methods, which cause a great waste of land resources and may cause secondary pollution. In addition, the amount of sludge in my country's urban sewage treatment plants is also increasing significantly. The sludge has a high water content and is difficult to use directly. Water consumes a lot of heat energy. However, the oily sludge in petrochemical enterprises is huge in volume, and there are a large amount of heavy metal salts and refractory toxic and harmful substances. Due to the limitation of the existing oily sludge treatment technology in my country, the ...

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Problems solved by technology

[0002] The amount of solid waste and hazardous waste from all walks of life in our country is huge and various. Most of the current treatment methods adopt traditional landfill and incineration methods, which cause a great waste of land resources and may cause secondary pollution.

In addition, the amount of sludge in my country's urban sewage treatment plants is also increasing significantly. The sludge has a high water content and is difficult to use directly. water, which consumes a lot of heat energy

However, the oily sludge in petrochemical enterprises is huge in volume, and there are a large amount of heavy metal salts and refractory toxic and harmful substances. Due to the limitation of the existing oily sludge treatment technology in my country, the current treatment method is only simple dehydration and drying treatment and Overseas stacking not only occupies land, but also causes varying degrees of pollution to soil, water and the atmosphere

[0003] Various waste liquids generated and discharged in industry, production and life often contain high concentrations of organic substances that can be utilized by microorganisms. The current treatment method is mainly to use wastewater treatment equipment for tail liquid treatment to achieve standard discharge and achieve cleanliness. It consumes a lot of energy while discharging, and it is also a big waste of water resources.

[0004] In addition, my country's industrial waste gas emissions are large and varied. At present, activated carbon adsorption, catalytic combustion / oxidation, acid-base neutralization, washing and drip filtration are mainly used. Although these treatment methods are effective, they are very costly. Today's society where economic interests are optimized is no longer competitive

To sum up, the conventional utilization and treatment methods of various wastes are easy to aggravate environmental pollution, and there are problems of large amount of waste, difficult treatment and high cost

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