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Aeration inner circulation type garbage infiltration liquid two-phase treatment reactor

A landfill leachate and reactor technology, applied in water aeration, sustainable biological treatment, biological water/sewage treatment, etc., can solve problems such as poor removal of ammonia nitrogen, and achieve automatic control, flexible process, and easy operation. Effect

Inactive Publication Date: 2007-10-03
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In recent years, leachate recharge technology has also been developed rapidly. Some field applications have been carried out in developed countries, and a good COD removal effect has been achieved, but the removal of ammonia nitrogen is not good.

Method used

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  • Aeration inner circulation type garbage infiltration liquid two-phase treatment reactor
  • Aeration inner circulation type garbage infiltration liquid two-phase treatment reactor

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Embodiment Construction

[0015] As shown in Figure 1, the two-phase treatment reactor for landfill leachate with aeration internal circulation has a support 13, on which a reactor body is arranged, and the reactor body is divided into two parts by a vertical partition in the middle of the reactor body. Cavities of different sizes, the 30cm to 35cm area of ​​the lower part of the vertical partition is provided with multi-row communication holes 18 evenly distributed, the bottom of the large and small chambers of the reactor body is an inverted cone cavity, and the large cavity of the reactor body Mixed filler is installed in the middle, and the upper part of the filler is a gravel layer 25. A horizontally placed water distribution plate 26 is arranged in the middle of the gravel layer. A water distribution pipe 24 is arranged on the water distribution plate. 15 is close to the small cavity of the reactor body, the first peristaltic pump is close to 23 and the fourth time controller is close to 5 and is ...

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Abstract

A two-phase reactor with aerating and internal circulation functions is composed of a main body divided by a perforated partition into a small liquid-phase aerating cavity containing a gas diffusing plate connected to the aerating pump via tube and a big cavity containing mixed filler, a liquid guide tube communicated to said both cavities via creeping pump, electrical valves at the bottoms of Said both cavities, the percolated liquid collectors, and a time controller connected to all the electric units.

Description

technical field [0001] The invention relates to an aeration internal circulation type landfill leachate two-phase treatment reactor. Background technique [0002] The landfill method is a commonly used municipal solid waste disposal method at home and abroad, and more than 95% of the global municipal solid waste is disposed of through landfill. Physicochemical and biochemical changes occur after landfill, organic matter degradation and rainwater infiltration lead to the generation of large amounts of leachate, which lasts for up to 50 years. Typical leachate contains high concentrations of COD (6000-15000mg / L) and ammonia nitrogen (500-3000mg / L), which can easily cause groundwater and surface water pollution, stimulate the growth of algae in surface water bodies, cause eutrophication of water bodies, and destroy aquatic ecology system and endanger human health. Therefore, leachate treatment has attracted much attention in recent years. [0003] After a short-term aerobic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/10C02F3/12C02F7/00C02F101/30
CPCY02W10/10
Inventor 郝永俊吴伟祥孙华吴松维陈英旭
Owner ZHEJIANG UNIV