Advanced treatment integrated equipment for aged leachate and treatment method thereof
A technology for advanced treatment and leachate, which is applied in the treatment of polluted groundwater/leachate, aerobic and anaerobic process treatment, etc. It can solve the problems of high treatment cost, difficult treatment of concentrate, and high operation and maintenance cost.
Active Publication Date: 2020-08-11
NANJING CROSS ENVIRONMENTAL TECH CO LTD +1
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Problems solved by technology
[0007] Aiming at the problems of membrane fouling, high operation and maintenance costs, and difficult treatment of concentrated liquid in the membrane separation technology in the existing advanced treatment technology of aged leachate, and the problems of high processing cost and large amount of chemical sludge in the advanced oxidation technology, the present invention An integrated equipment and treatment method for advanced treatment of aged leachate are provided, wherein:
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Embodiment 1
[0086] The integrated equipment for the advanced treatment of aged leachate provided in the present invention is used to treat the aged leachate pretreated by the high-efficiency denitrification system for aged landfill leachate treated with humic filler aerobic fixed bed anoxic MBR combination.
[0087] Such as Figure 5 As shown, in this embodiment, the specific structure of the alternate internal circulation biofilter 30 is the same as that in Example 1 of "Patent No. 201510403832.2, A Sewage Treatment Device for Alternate Internal Circulation Biofilter and Its Application Method". The water inflow is 50t / d, and the surface area of the biofilter is 25m 2 , designed to be 3m×8.4m, divided into two filter tanks, the packing volume is about 38m 3 , the hydraulic load is 2m / d, the height of the bottom water distribution chamber is 600mm, the supporting layer 33 is 50mm high, the packing layer 32 on the supporting layer 33 is made of 3-4mm PE plastic particles or ceramsite, t...
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The invention discloses advanced treatment integrated equipment for aged leachate and a treatment method thereof. The system comprises an alternate internal circulation biological filter, a powdered activated carbon adsorption clarification tank and a powdered activated carbon size mixing tank, the powdered activated carbon adsorption clarification tank comprises a central water inlet pipe arranged in the tank body and hollow balls filled in the central water inlet pipe; the top of the central water inlet pipe is a water inlet end and is communicated with the alternate internal circulation biological filter tank and the powdered activated carbon size mixing tank through pipelines; the bottom of the central water inlet pipe is a water outlet end and is provided with a perforated filter plate; a circular-truncated-cone-shaped flow guide hopper is arranged below the perforated filter plate; and a lifting pump is arranged on a communicating pipeline of the central water inlet pipe and thepowdered activated carbon size mixing tank. When the equipment is used for advanced treatment of the aged leachate, pollutants such as nitrogen and refractory COD in a water body can be removed, powdered activated carbon can also be removed, a clarified effluent is ensured, and the water body purification effect is good.
Description
technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to an integrated equipment and treatment method for advanced treatment of old leachate in an alternating internal circulation biological filter powder activated carbon adsorption clarification tank. Background technique [0002] my country currently has 27,000 informal landfills and more than 1,600 regular sanitary landfills, with a total waste stock of over 8 billion tons and an area of about 500 million square meters. There are two commonly used solutions to the aging leachate treatment problems faced in the process of stock domestic waste treatment: ①Transport the leachate to a regular landfill leachate treatment plant for treatment; ②Build a nearby leachate treatment facility or use mobile treatment equipment After reaching the standard, discharge through pipes or directly discharge. The former has high transportation costs and is also limited by unce...
Claims
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Login to View More IPC IPC(8): C02F3/30C02F103/06
CPCC02F3/30C02F2103/06
Inventor 吴军朱俊伟杨智力王雨纯郭小境吕宜廉罗培康李丹阳李志远马海涛焦冠通
Owner NANJING CROSS ENVIRONMENTAL TECH CO LTD