Reuse and up-to-standard discharging process of recycled water for chemical fiber viscose waste water

A waste water and viscose technology, which is applied in the direction of oxidized water/sewage treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of large amount of waste water, hazards to the surrounding environment, and pollutant content that cannot meet the discharge standards. To achieve the effect of reducing pollution and using resources efficiently

Inactive Publication Date: 2018-06-12
TIANJIN MOTIMO MEMBRANE TECH
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  • Description
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Problems solved by technology

After traditional pretreatment, physicochemical and biochemical treatments, COD Cr The content of pollutants such as pollutants still cannot meet the dischar

Method used

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  • Reuse and up-to-standard discharging process of recycled water for chemical fiber viscose waste water

Examples

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Example Embodiment

[0029] Example 1

[0030] For a project in Sichuan, the entire system will run after installation. The influent of the system is the water in chemical fiber viscose wastewater, the hardness (with CaCO 3 meter) content is 1600mg / L, COD Cr The content is 63mg / L, the TDS of raw water is about 9470mg / L, and the turbidity is about 10NTU. For this water quality, such as figure 1As shown, applying the above process of the present invention, the pre-coagulation water distribution unit of the pretreatment part of the high-density sedimentation tank is added with lime 9.6mg / L, soda ash 978mg / L, coagulant PAC 10mg / L, and the chemical is quickly mixed with the influent water, and then Enter the reaction tank, add the flocculant PAM 1mg / L at the bottom of the turbine propeller of the reaction tank, the water will form large and dense flakes, and the waste water will enter the pre-sedimentation concentration tank. In the inclined plate separation tank, the remaining suspended solids are...

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Abstract

The invention provides a reuse and up-to-standard discharging process of recycled water for chemical fiber viscose waste water. The reuse and up-to-standard discharging process comprises three portions: (1) a pretreatment portion; (2) a reduction portion; and (3) a further treatment portion, wherein in the portion (1), the hardness and partial suspended pollutants are removed, in the portion (2),the reuse and reduction of the produced water are realized, and in the portion (3), the water quality of the produced water is better than the discharge standard. By adopting the reuse and up-to-standard discharging process of the invention, the corresponding treatment scheme is proposed for main problems of the waste water such as hardness, suspended solids, CODCr and the like, the water qualityof the recycled water can be ensured, the discharging amount of the chemical fiber viscose waste water is reduced, and a purpose of comprehensively utilizing the resource and reducing the sewage discharging can be actually realized.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, and is a technology for reclaimed water reuse and up-to-standard discharge of chemical fiber viscose waste water. Background technique [0002] Chemical fiber viscose wastewater refers to the viscose wastewater produced in the process of chemical fiber production. It has high organic content, complex components, often contains various toxic substances, and has poor biochemical properties. After traditional pretreatment, physicochemical and biochemical treatments, COD Cr The content of other pollutants still cannot meet the discharge standards, and the amount of wastewater is large, which will cause serious harm to the receiving water body and the surrounding environment after discharge. [0003] With the increasingly stringent environmental protection standards, in order to meet the requirements of efficient use of resources, water conservation, and reduction of sewage discharge, i...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/38
CPCC02F1/001C02F1/441C02F1/444C02F1/5236C02F1/56C02F1/66C02F1/70C02F1/725C02F1/78C02F3/00C02F9/00C02F2103/38
Inventor 袁心席雪洁孙磊戴海平柯永文
Owner TIANJIN MOTIMO MEMBRANE TECH
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