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Anaerobic and aerobic composite biological treatment desalination method

A technology of biological treatment and oxygen recombination, which is applied in the direction of biological treatment devices, biological water/sewage treatment, aerobic and anaerobic process treatment, etc., can solve the problems of RO desalination technology, high operating costs, limitations of desalination efficiency, etc., to avoid water Consumption and cost rise sharply, reduce construction investment, and reduce production management and operation costs

Inactive Publication Date: 2020-01-03
山东环发科技开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, especially the high operating cost of the existing RO desalination technology and the limitation of the desalination efficiency of the anaerobic desalination technology, the present invention provides an anaerobic + aerobic composite biological treatment desalination method

Method used

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  • Anaerobic and aerobic composite biological treatment desalination method

Examples

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Effect test

Embodiment 1

[0044] An anaerobic + aerobic composite biological treatment desalination method, comprising the following steps:

[0045] The sewage to be treated is sequentially subjected to anaerobic reaction treatment and aerobic reaction treatment under the action of anaerobic sludge and aerobic sludge. The salt in the sewage is mixed in the anaerobic sludge and aerobic sludge in the form of inorganic salt sludge. It is discharged in the middle, and after anaerobic reaction treatment and aerobic reaction treatment, the desalted sewage is obtained;

[0046] Before the anaerobic reaction, the temperature of the sewage to be treated is controlled at 12-42°C; the pH of the anaerobic reaction is controlled to be 5.8-9. After the anaerobic reaction treatment, part of the salt in the sewage is precipitated in the form of inorganic salt sludge and mixed in the anaerobic sludge, then the anaerobic sludge is discharged, and part of it is returned to the anaerobic reaction process for recycling, wh...

Embodiment 2

[0052] Such as figure 1 As shown, an anaerobic + aerobic compound biological treatment desalination method is carried out by using the following treatment device:

[0053] Described treatment device comprises anaerobic reactor 1, aerobic reactor 2 and settling tank 4, and described anaerobic reactor 1 is provided with the first sewage water inlet 1-1, the first sewage water outlet 1-2, The first sludge feed port 1-3, the first sludge discharge port 1-4, the aerobic reactor 2 is provided with a second sewage water inlet 2-1, a second sewage water outlet 2-2, The second sludge feed port 2-3, the second sludge discharge port 2-4, the settling tank 4 is provided with a settling tank feed port 4-1, a settling tank discharge port 4-2, a settling tank Salt discharge pipe 4-3, the aerobic reactor 2 is also provided with an air inlet pipe 3;

[0054] The first sewage water outlet 1-2 is connected to the second sewage water inlet 2-1, and the first sludge discharge port 1-4 is connect...

Embodiment 3

[0059] As described in Example 2, the difference is:

[0060] The sewage inflow temperature of the anaerobic reactor 1 is 48-60° C., and a cooling device is installed before the aerobic reactor 2 enters the water.

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Abstract

The invention relates to an anaerobic and aerobic composite biological treatment desalination method. The method comprises the following steps: sequentially carrying out anaerobic reaction treatment and aerobic reaction treatment on sewage to be treated under the action of anaerobic sludge and aerobic sludge, and discharging salt in the sewage by mixing the salt with the anaerobic sludge and the aerobic sludge in the form of inorganic salt sludge, wherein desalted sewage is obtained after anaerobic reaction treatment and aerobic reaction treatment. According to the invention, salt contained ina sewage system is treated by an anaerobic and aerobic composite biological method so as to form settleable substances, and the settleable substances are discharged out of the system along with sludge, so the purpose of desalination is achieved; and a natural separation mode is adopted for salt separation or a precipitation tank is not independently arranged, and complex mechanical equipment is not needed, so power consumption is reduced, system construction investment is reduced, operation is easy, and management and operation are convenient.

Description

technical field [0001] The invention relates to an anaerobic + aerobic composite biological treatment desalination method, which belongs to the technical field of environmental protection water treatment and purification. Background technique [0002] In recent years, with the gradual implementation of national environmental protection policies, industrial enterprises have gradually strengthened their investment in sewage treatment systems. Due to the relatively low per capita water consumption in our country, the cost of industrial water use is increasing year by year, and the requirements for sewage discharge are also constantly improving and becoming stricter. Shandong Province promulgated the total salt control index standard for effluent wastewater in 2014. In order to reduce the consumption of fresh water per ton of product in some industries, some industries have increased the circulation of production water, which has gradually deteriorated production water, COD has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F9/14
CPCC02F1/52C02F3/30C02F2203/006C02F2209/02C02F2209/06C02F2209/22C02F2301/046
Inventor 寇清芬彭悦
Owner 山东环发科技开发有限公司
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