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Garbage leachate advanced treatment method and Fenton reaction tower

A technology for landfill leachate and advanced treatment, applied in the field of water treatment, can solve the problems of no good method for the treatment of concentrated liquid, difficult treatment of concentrated liquid, and inability to recycle, etc., and achieves good effluent quality, small footprint, and energy saving. The effect of land occupation and investment

Active Publication Date: 2014-06-25
深圳市百斯特环保工程有限公司
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Problems solved by technology

[0002] At present, the advanced treatment of leachate is mainly based on membrane filtration, through the use of filter membranes with different pore sizes to meet different specification requirements, but the process of membrane filtration is a physical process, which only transfers pollutants to the concentrated solution, which is not really meaningful. For the removal of pollutants, the concentrate produced by the membrane treatment method is a secondary pollution source that is very difficult to deal with. There is no good method for the treatment of the concentrate so far, and the membrane is a non-renewable resource. If it is damaged, it must be replaced. New, cannot be recycled, resulting in waste of resources and high operating costs

Method used

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  • Garbage leachate advanced treatment method and Fenton reaction tower
  • Garbage leachate advanced treatment method and Fenton reaction tower
  • Garbage leachate advanced treatment method and Fenton reaction tower

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Embodiment Construction

[0035] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments.

[0036] The present invention provides a kind of advanced treatment method of landfill leachate, in one embodiment, such as figure 1 shown, including the following steps:

[0037] (1) Put the landfill leachate into the membrane bioreactor for treatment, and the COD of the effluent treated in step (1)≤1000mg / L, NH 3 -N≤100mg / L, TN≤200mg / L.

[0038] (2) Adjust the pH of the effluent treated in step (1) to 2-3 with sulfuric acid, and then enter the Fenton reaction tower for advanced oxidation treatment. The oxidant for the advanced oxidation treatment is Fenton’s reagent, and the Fenton’s reagent is h 2 o 2 and FeSO 4 The mixture, according to each ton of water entering the Fenton reaction tower, add 5kg H 2 o 2 and 2.6kg FeSO 4 , the water entering the Fenton reaction tower is in a spiral shape, and the time of the advan...

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Abstract

The invention discloses a garbage leachate advanced treatment method and a Fenton reaction tower. The advanced treatment method comprises the following steps: (1) treating garbage leachate in a membrane bioreactor; (2) sending effluent water treated by the step (1) into a Fenton reaction tower, and carrying out advanced oxidation treatment; (3) sending the effluent water treated by the step (2) into a precipitation tank; (4) sending the effluent water treated by the step (3) into an anaerobic aeration biofilter; and (5) sending the effluent water treated by the step (4) into an aerobic aeration biofilter, and discharging the effluent water after reaching the standard. The method is simple to operate and low in operating cost, does not generate any concentrated solution, can implement energy saving and emission reduction in deed.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to an advanced treatment method for landfill leachate and a Fenton reaction tower. Background technique [0002] At present, the advanced treatment of leachate is mainly based on membrane filtration, through the use of filter membranes with different pore sizes to meet different specification requirements, but the process of membrane filtration is a physical process, which only transfers pollutants to the concentrated solution, which is not really meaningful. For the removal of pollutants, the concentrate produced by the membrane treatment method is a secondary pollution source that is very difficult to deal with. There is no good method for the treatment of the concentrate so far, and the membrane is a non-renewable resource. If it is damaged, it must be replaced. New ones cannot be recycled, resulting in waste of resources and high operating costs. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/72
Inventor 曾胜学申司浩王侃朱红斌金鑫龙纯章秋来吕一展陈雁雄蔡得华张立奎
Owner 深圳市百斯特环保工程有限公司
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