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System and method for disposal of landfill leachate

A landfill leachate and disposal system technology, which is applied in the field of waste treatment, can solve problems such as low leachate treatment efficiency, high device maintenance rate, and non-standard leachate, so as to achieve convenient maintenance and repair operations, improve efficiency, and solve easy to be blocked Effect

Active Publication Date: 2016-06-08
HUAXIN CEMENT +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Due to the above-mentioned problems of the existing garbage treatment process, the efficiency of garbage drying and leachate treatment is low, the treated leachate is not up to standard, and the maintenance rate of the devices in the system is high

Method used

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  • System and method for disposal of landfill leachate
  • System and method for disposal of landfill leachate

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Embodiment Construction

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] Such as figure 1 As shown, the landfill leachate disposal system 1 of the present invention includes a leachate sump 101, a first screw pump 103, a pretreatment tank 105, a second screw pump 106, a heater 107, an anaerobic reactor 110, a nitrification / reaction Nitrification device 111 , ultrafiltration membrane device 113 , nanofiltration membrane device 118 , reverse osmosis membrane device 114 , clear water pool 115 and concentrated solution pool 119 .

[0026] The leachate collection tank 101, the first screw pump 103, the pretreatment tank 105, the second screw pump 106 and the heater 107 are connected in sequence, and the leachate disposal system 1 also includes a circulating water tank 108 and a COD for det...

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Abstract

The invention relates to a landfill leachate treatment system and method; the system includes a leachate collection tank, a first screw pump, a pretreatment tank, a second screw pump, a heater, an anaerobic reactor, a nitrification / denitrification device, an ultrafiltration membrane device, a nanofiltration membrane device, a reverse osmosis membrane device, a clean water tank and a concentrated liquid tank; the leachate treatment system also includes a circulating water tank and a COD online monitoring device which is used for detecting the COD concentration of a filtrate in the circulating water tank, and the circulating water tank is arranged between the heater and the anaerobic reactor and is connected with the nitrification / denitrification device; the nitrification / denitrification device is orderly connected with the ultrafiltration membrane device, the nanofiltration membrane device, the reverse osmosis membrane device and the clean water tank, and the ultrafiltration membrane device, the nanofiltration membrane device and the reverse osmosis membrane device are connected with the concentrated liquid tank. The method comprises the following steps: S1, lifting and conveying a leachate; and S2, treating the leachate. A plurality of garbage treatment steps are improved, the treatment efficiency of the landfill leachate is increased, and the leachate after treatment can meet standards and be discharged.

Description

technical field [0001] The invention relates to the field of garbage disposal, and more specifically, to a disposal system and method for landfill leachate. Background technique [0002] The treatment and utilization of municipal waste "harmless, reduced, and resourceful" is a worldwide issue. At present, the centralized treatment methods of urban and rural municipal waste in my country mainly include landfill, composting, and incineration. The landfill method occupies a large area and has a low degree of waste reduction. It requires anti-seepage treatment, and a biogas recovery and leachate treatment plant must be built, which is likely to pollute groundwater and surrounding air. The composting method is suitable for treating waste containing a lot of perishable organic matter, and can realize the comprehensive utilization of some resources, but the quality of composting is not easy to control, and the harmful components often exceed the standard. Waste incineration power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/441C02F1/442C02F1/444C02F3/28C02F3/302C02F9/00C02F2103/06C02F2209/08C02F2301/08C02F2301/10
Inventor 李叶青刘喆王焕忠缪文娟
Owner HUAXIN CEMENT
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