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A process for treating organic wastewater with high-efficiency anaerobic reactor

An anaerobic reactor and organic wastewater technology, applied in anaerobic digestion treatment, biological water/sewage treatment, special compound water treatment, etc., can solve problems such as high flow rate, easy sludge loss, unstable operation effect, etc., to achieve Efficient removal rate, less maintenance, strong treatment effect

Active Publication Date: 2019-10-08
江苏中金环保科技有限公司
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Problems solved by technology

However, the water at the top of the anaerobic reactor flows to the bottom, and is evenly returned by the water distribution pipe. The flow rate is too high, the sludge is easy to lose, and the operation effect is unstable.

Method used

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  • A process for treating organic wastewater with high-efficiency anaerobic reactor

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Embodiment Construction

[0037] The invention provides a kind of high-efficiency anaerobic reactor process organic waste water technique, and its steps are as follows S1: enter water: organic waste water is transported in the front pre-reactor;

[0038] S2: Pre-treatment: Add nutrients, defoamers and alkali to the pre-reactor while transporting organic wastewater to improve the activity of microorganisms and COD removal rate. The wastewater and biogas returned from the main reactor are fully mixed under the action of the circulation pump, and the preliminary hydrolysis and acidification are carried out under the action of facultative bacteria to degrade the COD in the water, and the harmful gases overflowing from the wastewater can be effectively removed by using the returned biogas;

[0039] S3: feeding: start the feed pump to transport the mixed solution formed in step S2 into the main reactor;

[0040] S4: Main reactor treatment: The mixed liquid enters the first anaerobic reaction zone from the bo...

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Abstract

The invention provides a technology for treating organic wastewater by means of an efficient anaerobic reactor. The technology comprises the following steps of 1 water charging, 2 treating conducted in a front pre-reactor, 3 material feeding, 4 treating conducted in a main reactor, 5 water discharging, 6 biogas collecting and 7 sludge collecting. According to the technology, efficient anaerobic treatment is conducted on the high-concentration organic wastewater by adopting the technology of combining the front pre-reactor with the anaerobic main reactor, therefore, the removal rate of COD in effluent is higher than 92%, and the working efficiency of the technology is greatly improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of organic wastewater treatment, in particular to a process for treating organic wastewater with an efficient anaerobic reactor. Background technique [0002] With the development of science and the continuous deepening of scientific research, many new technologies, new materials, and new concepts are widely used in the environmental protection industry, which has made great progress in my country's environmental protection technology. Most of the wastewater discharged from food, brewing, pharmaceutical, chemical and other industries is high-concentration organic wastewater. It is difficult to achieve the purpose of treatment by conventional physicochemical and biochemical treatments. At the same time, there are system problems such as operation management, large investment, and high operating costs. [0003] The superiority of anaerobic treatment of high-concentration organic wastewate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F101/30
CPCC02F3/286C02F3/2873C02F2101/30C02F2305/06Y02E50/30
Inventor 张卫东魏国栋钱洁
Owner 江苏中金环保科技有限公司
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