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An anaerobic reactor for treating low-concentration wastewater and its application method

A technology of anaerobic reactor and application method, applied in the field of water treatment reactor, can solve problems such as poor effect

Active Publication Date: 2020-04-10
知和环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that conventional anaerobic reactors are not effective in treating low-concentration wastewater, combined with the above-mentioned background technology, the present invention provides a new type of reactor, the main content of which is: an anaerobic reactor for treating low-concentration wastewater and its application method

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  • An anaerobic reactor for treating low-concentration wastewater and its application method
  • An anaerobic reactor for treating low-concentration wastewater and its application method

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Embodiment 1

[0020] The reactor of the invention is used to treat the comprehensive wastewater of a certain brewery. An anaerobic reactor with an inner diameter of 50cm and a height of 1m is established, and three water distribution pipes are arranged inside, each water distribution pipe is 30cm long and the inner diameter is 5cm, and each water distribution pipe is equipped with 3 water distribution ports, and the diameter of the water distribution port is 2.5cm; 4 tangential distribution outlets are arranged, and the flow rate of each water inlet is appropriately adjusted according to the reaction requirements; the anaerobic sludge and special mycelium balls are filled into the reactor according to the mass ratio of 20:1, and the sludge concentration is 10000mg / L; the reaction The feed water of the reactor is comprehensive wastewater from a brewery. The raw water is pumped into the reactor from the feed end of the reactor through a peristaltic pump. The residence time of the sewage in the...

Embodiment 2

[0024] The reactor of the present invention is used to treat the production wastewater of a dairy company. An anaerobic reactor with an inner diameter of 80cm and a height of 1m is established, and five water distribution pipes are arranged inside, each water distribution pipe is 20cm long and the inner diameter is 4cm, and each water distribution pipe is equipped with 3 water distribution ports, and the diameter of the water distribution port is 2cm; Arrange 10 tangential water outlets, and adjust the flow rate of each water inlet according to the reaction requirements; fill the reactor with anaerobic sludge and special mycelium balls at a ratio of 5:1, and the sludge concentration is 8000mg / L; The influent water is wastewater produced by a dairy company. The raw water is poured into the reactor from the water inlet end of the reactor through a peristaltic pump. The residence time of the sewage in the reactor is 8 hours. The COD content of the water is lower than 100mg / L under...

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Abstract

The invention concretely relates to a water treatment reactor and an application method thereof. The water treatment process of the reactor adopts a down-in-and-up-out immersed type. A combined waterdistribution system is developed to make raw water enter the reactor from the middle and the edge of the reactor through different water distribution ports, so the uniformity of the quality of water in the reactor is benefited, and the functions of the reactor are fully performed; and a single-stage anaerobic system is used to achieve a high organic matter removal rate and make the COD value of the effluent water reduced to 100 mg / L or below, so the process in the invention can achieve the same removal effect of traditional aerobic processes and anaerobic-aerobic combined processes, the running cost is greatly reduced, and the anaerobic process is effectively utilized in the treatment of the low concentration wastewater. A low-temperature methanogenic strain is introduced to bio-enforce the reactor, so the stability of the effectiveness of the reactor at different temperatures is ensured, the problem of running of the anaerobic process in winter is solved, and a new idea is provided for the wide application for the anaerobic treatment of the low concentration wastewater.

Description

technical field [0001] The invention belongs to the application field of water treatment technology, and specifically relates to a water treatment reactor and its application method. Low-concentration organic wastewater. Background technique [0002] Low-concentration wastewater generally refers to wastewater with a COD concentration lower than 1000mg / L, mainly including domestic sewage and various diluted industrial wastewater. At present, aerobic processes such as activated sludge method, contact oxidation method and trickling filter are mostly used for the treatment of low-concentration wastewater. However, there are problems such as high energy consumption (aeration) and high sludge treatment or disposal costs. Compared with the aerobic process, the anaerobic process generally has low energy consumption, less residual sludge, less nitrogen and phosphorus nutrients, and can generate methane, which greatly reduces the cost of sewage treatment. [0003] However, due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/34C02F103/32C02F101/30
CPCC02F1/006C02F3/2806C02F3/2866C02F3/347C02F2101/30C02F2103/325C02F2103/327
Inventor 李海松许子聪谷漫飞王倩文赵楠楠吕春阳
Owner 知和环保科技有限公司