Technology for recycling and treating high-salt organic wastewater resources

A technology for organic waste water and resource recovery, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve the problems of waste and high cost of incineration, achieve low operating cost and reduce the difficulty of treatment , The effect of reducing the difficulty of incineration treatment

Inactive Publication Date: 2018-01-19
XINXIANG SHUANGCHENG ENVIRONMNETAL PROTECTION EQUIP CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of high incineration cost and waste caused by direct incineration of organic components in the current high-salt organic wastewater, and provide a high-salt organic wastewater resource recovery and treatment process. The organic components and salts in the wastewater are fully purified, recycled, and utilized, which reduces operating costs. The organic solvents can be recycled, and the obtained mixed salts are separated, purified, and recycled by recrystallization, thereby obtaining a single-component of pure salt, saving resources

Method used

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  • Technology for recycling and treating high-salt organic wastewater resources

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: A kind of high-salt organic wastewater resource recovery and treatment process, such as figure 1 shown, including the following steps:

[0015] Step 1: The high-salt organic wastewater is distilled, condensed, and concentrated and pretreated to obtain concentrated high-salt organic wastewater and condensate containing organic matter. The condensate enters the biochemical system for biochemical treatment, and the organic matter is degraded under the action of microorganisms;

[0016] Step 2: Add an extractant to the concentrated high-salt organic wastewater obtained in step 1, distill and condense to obtain a salt-containing organic solution and a condensed extracted organic solution, leave the extracted organic solution to stand, and extract the solution and the organic solution , After water stratification, the separated extraction solution can be reused as the extraction agent, the separated organic solution is subjected to harmless incineration treatmen...

Embodiment 2

[0019] Embodiment 2: a kind of high-salt organic wastewater resource recovery and treatment process, such as figure 1 shown, including the following steps:

[0020] Step 1: The high-salt organic wastewater is distilled, condensed, and concentrated and pretreated to obtain concentrated high-salt organic wastewater and condensate containing organic matter. The condensate enters the biochemical system for biochemical treatment, and the organic matter is degraded under the action of microorganisms;

[0021] Step 2: Add an extractant to the concentrated high-salt organic wastewater obtained in step 1, distill and condense to obtain a salt-containing organic solution and a condensed extracted organic solution, leave the extracted organic solution to stand, and extract the solution and the organic solution , After water stratification, the separated extraction solution can be reused as the extraction agent, the separated organic solution is rectified to recover the organic solvent, t...

Embodiment 3

[0024] Embodiment 3: a kind of high-salt organic wastewater resource recovery and treatment process, such as figure 1 shown, including the following steps:

[0025] Step 1: The high-salt organic wastewater is distilled, condensed, and concentrated and pretreated to obtain concentrated high-salt organic wastewater and condensate containing organic matter. The condensate enters the biochemical system for biochemical treatment, and the organic matter is degraded under the action of microorganisms;

[0026] Step 2: Add an extractant to the concentrated high-salt organic wastewater obtained in step 1, distill and condense to obtain a salt-containing organic solution and a condensed extracted organic solution, leave the extracted organic solution to stand, and extract the solution and the organic solution , After water stratification, the separated extraction solution can be reused as the extraction agent, the separated organic solution is rectified to recover the organic solvent, t...

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Abstract

The invention relates to a treatment method of high-salt wastewater, in particular to a technology for recycling and treating high-salt organic wastewater resources. The technology has the advantagesthat the organic component and salt in the wastewater can be fully extracted, recycled, and utilized, so that the running cost in incineration is reduced; the organic solvent can be recycled, so thatthe obtained mixed salt can be separated and purified in a recrystallizing way, and then recycled, thereby obtaining the pure salt with single component, and saving the resource.

Description

technical field [0001] The invention relates to a treatment method for high-salt wastewater, in particular to a resource recovery and treatment process for high-salt organic wastewater. Background technique [0002] High-salt wastewater is wastewater with a total saline mass fraction of at least 1%. High-salt wastewater is produced in a wide range of ways, and the amount of water is increasing year by year. It is very important to remove organic pollutants in saline wastewater that have an impact on the environment. Biological method is used for treatment, high concentration of salt substances can inhibit microorganisms, some organic matter is difficult to biodegrade, and the expected purification effect cannot be achieved; membrane technology is easy to block and pollute, and the concentrated waste liquid cannot be treated; direct incineration treatment The investment is large, auxiliary fuel is required, the fuel cost is high, and the operating cost is too high to be econo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
Inventor 冯立才杨秀忠丰雷赵振国郝宗华
Owner XINXIANG SHUANGCHENG ENVIRONMNETAL PROTECTION EQUIP CO LTD
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