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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After traditional pretreatment, physicochemical and biochemical treatments, COD Cr The content of pollutants such as 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.

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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Effect test

Embodiment 1

[0030] For a project in Sichuan, the entire system was installed and then put into operation. The water entering the system is water from chemical fiber viscose wastewater, the hardness (as CaCO 3 meter) content of 1600mg / L, COD Cr The content is 63mg / L, the raw water TDS is about 9470mg / L, and the turbidity is about 10NTU. For this water quality, such as figure 1Shown, apply above-mentioned technology of the present invention, the front coagulation water distribution unit of pretreatment part high-density sedimentation tank adds lime 9.6mg / L, soda ash 978mg / L, coagulant PAC10mg / L, and medicament mixes rapidly with influent, then Enter the reaction tank, add the flocculant PAM1mg / L at the bottom of the turbine blade in the reaction tank, large and dense alum flowers are formed in the water, and the wastewater enters the pre-sedimentation concentration tank, most of the suspended solids are precipitated and concentrated in this area, and the produced water enters the In the ...

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PUM

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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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