Inlet water distribution system for leachate anaerobic reactor

Abstract

The invention provides an incoming water distribution system of a leachate anaerobic reactor. The incoming water distribution system comprises a water-in main pipe, a primary water distributor and at least four secondary water distributors, wherein the secondary water distributors are uniformly distributed around the primary water distributor; the primary water distributor comprises a hollow first hemisphere body, a first water inlet and first water outlets numerically consistent with and in one-to-one correspondence to the secondary water distributors; the secondary water distributor comprises a hollow second hemisphere body, a second water inlet and multiple second water outlets; the second water outlets are uniformly distributed at the bottom end of the spherical surface of the second hemisphere body; the second water inlet is connected with corresponding first water outlets; and the middle part of the bottom surface of the first hemisphere body and the middle part of the bottom surface of the second hemisphere body separately hunch up to form a curved surface. According to the system provided by the invention, frequent disturbance of the incoming water in the flowing process is guaranteed so as to avoid the turbulence phenomenon and intensify the turbulent condition of the incoming water, and the impurities do not deposit in the water-in process while scale is not easily formed on the pipeline.

Description

【Technical field】 [0001] The invention belongs to an equipment system in the technical field of landfill leachate treatment, and in particular relates to a water inlet and distribution system of a leachate anaerobic reactor. 【Background technique】 [0002] The landfill leachate of the domestic waste incineration plant mainly refers to the waste water contained in itself and the waste water produced by acidic fermentation discharged from the waste piled in the storage pit after being squeezed. This kind of waste water has complex organic composition and high concentration; because it has not passed through During the long-term anaerobic fermentation process, it still contains a large amount of polycyclic aromatic hydrocarbons, phenols and aniline compounds and other refractory organic compounds, and the COD can reach 30-80g / L; the nitrogen content is high, and the TN in the leachate is generally 2g / L Above; the biodegradability is good, B / C is generally around 0.5, and the VF...

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Problems solved by technology

[0004] Among them, the current water inlet and distribution system has structures such as perforated pipes and annular pipes. However, due to the large amount of impurities in the landfill leachate and the high concentration of calcium and magnesium ions, the resistance loss of each water outlet point is different, resulting in unequal water outlet pressure and resistance loss. The flow rate of large water outlet points is reduced, the flow rate is reduced, and impurities and dirt are easy to deposit first. Long-term operation may easily cause sludge accumulation in dead corners of water distribution, blockage of water distribution pipes, and uneven water distribution during actual operation, resulting in poor treatment effects. question

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