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Landfill leachate treatment device

A technology for landfill leachate and treatment equipment, which is applied in biological treatment equipment, contaminated groundwater/leachate treatment, special treatment targets, etc. It can solve problems such as increasing production capacity, and achieve increased production capacity, reduced energy consumption, and reduced costs Effect

Pending Publication Date: 2018-03-27
CHINA ENFI ENGINEERING CORPORATION
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Problems solved by technology

[0007] The purpose of the present invention is to provide a treatment device for landfill leachate in view of the complex characteristics of landfill leachate and the deficiencies of the prior art, which can save cost, increase capacity and reduce energy consumption

Method used

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Embodiment Construction

[0043] The waste incineration leachate used in the specific implementation of this application comes from a waste incineration power plant in Beijing, and its water quality indicators are as follows COD: 40240-80480mg / L, BOD 5 : 22870–50350mg / L, NH 4 + -N: 1042–1395 mg / L, TN: 1330–2179 mg / L, SS: 8000–10000 mg / L.

[0044] Wherein, the chemical oxygen demand (COD) is a chemical method to measure the amount of reducing substances that need to be oxidized in the water sample, reflecting the degree of contamination of the water by reducing substances, and can be used as a comprehensive measure of the relative content of organic substances. The larger the value, the more serious the pollution of the water body; the biochemical oxygen demand (BOD 5) generally refers to the five-day biochemical oxygen demand, which is an important indicator that uses the amount of dissolved oxygen consumed by microbial metabolism to indirectly indicate the degree of water body pollution by organic m...

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Abstract

The invention provides a landfill leachate treatment device. The device is formed by four treatment units such as a microbial electrolysis cell reactor, an anoxic denitrification reactor, a partial nitrification reactor and an anaerobic ammonia oxidation reactor which are sequentially in serial connection, wherein the microbial electrolysis cell reactor is provided with a water inlet end and a water outlet end for landfill leachate, the water outlet end of the microbial electrolysis cell reactor is connected with a water inlet end of the anoxic denitrification reactor, a water outlet end of the anoxic denitrification reactor is connected with a water inlet end of the partial nitrification reactor, a water outlet of the partial nitrification reactor is connected with a water inlet end of the anaerobic ammonia oxidation reactor, and a water outlet end of the anaerobic ammonia oxidation reactor is connected with a draining opening or a lower-level treatment unit. The treatment device canremove organic pollutions of the landfill leachate in high efficiency and denitrify in high efficiency, so that the treated landfill leachate can stably reach the standard. In addition, when the device disclosed by the invention is utilized to treat the landfill leachate, operation energy consumption and later sludge treatment cost are further saved.

Description

technical field [0001] The invention relates to a treatment device for landfill leachate, which is suitable for the treatment of landfill leachate and belongs to the field of high-concentration waste water treatment. Background technique [0002] In recent years, the annual output of domestic waste in cities has increased sharply at a rate of 8% to 10%. There are two main ways of traditional domestic waste disposal, landfill or incineration for power generation. Landfill or compost fermentation before incineration will produce a large amount of landfill leachate. Due to the complex composition of domestic waste, large fluctuations in moisture content, and the uncertainty of environmental conditions (composting temperature, composting time, air humidity, precipitation, regional conditions, etc.) during the garbage fermentation process, waste incineration power plants The composition of leachate is complex, there are many types of organic pollutants, and the range of change ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/34C02F3/30C02F103/06
CPCC02F3/005C02F3/307C02F3/34C02F2209/02C02F2203/006C02F2209/08C02F2209/10C02F2209/22C02F2209/16C02F2209/14C02F2103/06C02F2303/10C02F2209/40C02F2209/44C02F2301/046Y02E50/30
Inventor 高严田丽森赵永志赵金聂宜文
Owner CHINA ENFI ENGINEERING CORPORATION
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