Landfill leachate treatment equipment and landfill leachate treatment method

A landfill leachate and treatment equipment technology, applied in the field of landfill leachate treatment equipment, can solve the problems of high energy consumption and large cross-flow flow, and achieve the effect of less temperature rise and small scale

Active Publication Date: 2014-09-03
BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD
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Problems solved by technology

When water passes through the tubular ultrafiltration membrane, the pressure required is as high as several kg / cm 2 , the cross-flow flow rate required to slow down membrane fouling is also large, thus consuming more energy

Method used

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  • Landfill leachate treatment equipment and landfill leachate treatment method
  • Landfill leachate treatment equipment and landfill leachate treatment method
  • Landfill leachate treatment equipment and landfill leachate treatment method

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Embodiment Construction

[0029] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all implementations. Exhaustive list of examples.

[0030] Such as figure 2 and 3As shown, the landfill leachate treatment equipment according to the present invention includes a water inlet pump 1, a preprocessor (in this specific embodiment, a fine grid) 2, a pair of biochemical treatment units 5, a suction pump 8 and an oxygen supply fan 9. Although there are two biochemical treatment units 5 shown in the drawings, in fact, the biochemical treatment units are not limited to two, as long as they appear in pairs, that is, there are even numbers. Specifically, in the landfill leachate treatment equipment according to the present invention, th...

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Abstract

The invention provides landfill leachate treatment equipment which comprises a water pump, a pretreater, paired biochemical treatment units, a suction pump and an oxygen supply air blower. When the landfill leachate treatment equipment runs, the two groups of biochemical treatment units are mutually switched through a valve to run alternately, and the purposes of removing ammonia nitrogen contained in landfill leachate through nitrification and removing organic substances and nitrate nitrogen which are contained in the landfill leachate through denitrification are reached. The invention also provides a method for treating the landfill leachate by utilizing the landfill leachate treatment equipment. Compared with the prior art, the landfill leachate treatment equipment and the landfill leachate treatment method which are provided by the invention only require the primary pretreatment without high-flow reflux or high-flow high-speed water circulation or high-pressure filtration, and thus mechanical energy which is caused by continuous high-flow circulation and finally transformed into heat energy is not consumed, and further the temperature rise is little and the scale of the cooling unit can be designed to be small.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a landfill leachate treatment equipment and method. Background technique [0002] The treatment of leachate in urban waste landfills has always been a very difficult problem in the design, operation and management of landfills. Leachate is the product of gravity flow of liquid in a landfill, mainly from precipitation and the embedded water of the waste itself. Since many factors may affect the properties of the leachate during the flow of the liquid, including physical factors, chemical factors and biological factors, the properties of the leachate vary within a considerable range. The leachate of urban waste landfill is a kind of high-concentration organic wastewater with complex components. If it is directly discharged into the environment without treatment, it will cause serious environmental pollution. For the purpose of protecting the environment, it is essential ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 吴卓刘胜军赵蓓杜小刚何广华
Owner BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD
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