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PROBAN flame-retardant wastewater treatment method

A wastewater treatment and wastewater technology, applied in the textile industry wastewater treatment, water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of high residual hydrogen peroxide content, high organic phosphorus content, and high chemical requirements, and achieve safe elimination. Hidden dangers and toxic side effects, investment cost savings, and the effect of reclaimed water reuse

Active Publication Date: 2020-03-31
HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the oxidation washing tanks at all levels, the content of hydrogen peroxide and organic phosphorus in the water after washing in the padding hydrogen peroxide washing tank is the highest, and the content of hydrogen peroxide and organic phosphorus in the water after washing in the subsequent oxidation washing tanks is gradually reduced. The produced PROBAN flame-retardant wastewater has the characteristics of high chemical demand (COD), high residual hydrogen peroxide content, and high organic phosphorus content. It is a typical refractory cost, and if it is discharged directly, it will cause serious pollution to the environment.

Method used

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  • PROBAN flame-retardant wastewater treatment method

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Effect test

Embodiment 1

[0030] A kind of PROBAN fire retardant wastewater treatment method, comprises the following steps:

[0031] (1) PROBAN flame retardant waste water grouping

[0032] Aiming at the oxidized water washing process for producing flame-retardant cloth by PROBAN method, the oxidized water washing process includes 10 stages of water washing tanks connected in series, and the 10 stages of water washing tanks connected in series are sequentially divided into group A and group B;

[0033] Among them, group A contains the 4-stage washing tank for oxidation and washing of the flame-retardant cloth for the first time, and the corresponding group B contains the 6-stage washing tank for oxidation and washing of the flame-retardant cloth again; at the same time, the water consumption of group A for oxidation and washing is 4m 3 / h, group B oxidation water washing water consumption 6m 3 / h;

[0034] Combine the wastewater discharged from each stage of the washing tank in Group A, which is the...

Embodiment 2

[0046] A kind of PROBAN fire retardant wastewater treatment method, comprises the following steps:

[0047] (1) PROBAN flame retardant waste water grouping

[0048] Aiming at the oxidized water washing process for producing flame-retardant cloth by PROBAN method, the oxidized water washing process includes 10 stages of water washing tanks connected in series, and the 10 stages of water washing tanks connected in series are sequentially divided into group A and group B;

[0049] Among them, Group A contains the 3-stage washing tank for oxidation and washing of the flame-retardant cloth for the first time, and the corresponding group B contains the 7-stage washing tank for oxidation and washing of the flame-retardant cloth again; at the same time, the water consumption for oxidation and washing of Group A is 3m 3 / h, group B oxidation washing water consumption 7m 3 / h;

[0050] Combine the wastewater discharged from each stage of the washing tank in Group A, which is the high-...

Embodiment 3

[0062] A kind of PROBAN fire retardant wastewater treatment method, comprises the following steps:

[0063] (1) PROBAN flame retardant waste water grouping

[0064] Aiming at the oxidized water washing process for producing flame-retardant cloth by PROBAN method, the oxidized water washing process includes 10 stages of water washing tanks connected in series, and the 10 stages of water washing tanks connected in series are sequentially divided into group A and group B;

[0065] Among them, group A contains the 5-stage washing tank for oxidation and washing of the flame-retardant cloth for the first time, and the corresponding group B contains the 5-stage washing tank for oxidation and washing of the flame-retardant cloth again; at the same time, the water consumption for oxidation and washing of group A is 5m 3 / h, water consumption for group B oxidation washing is 5m 3 / h;

[0066] Combine the wastewater discharged from each stage of the washing tank in Group A, which is th...

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Abstract

The invention discloses a PROBAN flame-retardant wastewater treatment method, and belongs to the field of water pollution treatment and textile printing and dyeing wastewater treatment technologies. The method comprises the following steps: (1) PROBAN flame-retardant wastewater grouping: aiming at an oxidation water washing process for producing a flame-retardant cloth by a PROBAN method, whereinthe oxidation water washing process uses 10 stages of water washing tanks which are connected in series, sequentially dividing the 10 stages of the water washing tanks into a group A and a group B, mixing the wastewater discharged from all stages of the water washing tanks in the group A to obtain high-concentration PROBAN flame-retardant wastewater, and mixing the wastewater discharged from all stages of the water washing tanks in the group B to obtain low-concentration PROBAN flame-retardant wastewater, and (2) PROBAN flame-retardant wastewater treatment: treating the high-concentration PROBAN flame-retardant wastewater and treating the low-concentration PROBAN flame-retardant wastewater. According to the invention, the flame-retardant wastewater is divided into high-concentration flame-retardant wastewater and low-concentration flame-retardant wastewater through technical transformation, the high-concentration flame-retardant wastewater is dephosphorized by adopting an evaporation process, and the low-concentration flame-retardant wastewater is dephosphorized by adopting an advanced oxidation process. The problem of organophosphorus pollution is effectively solved and reclaimedwater reuse is realized.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing wastewater treatment, and in particular relates to a PROBAN flame-retardant wastewater treatment method. Background technique [0002] Printing and dyeing is one of the pillar industries in my country. The discharge of printing and dyeing wastewater is large, the water quality is complex, and it has the characteristics of high COD, high chroma, and difficult treatment. Especially with the advancement of printing and dyeing finishing technology, functional fabrics such as flame-retardant fabrics, radiation-proof fabrics, and anti-static fabrics have been widely used in life and production. In the production process of functional fabrics, a variety of non-biodegradable printing, dyeing and finishing auxiliaries are added, which further increases the difficulty of printing and dyeing wastewater treatment. [0003] At present, the production process of flame-retardant cloth often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/30C02F101/30
CPCC02F9/00C02F2103/30C02F1/725C02F1/78C02F1/76C02F1/5236C02F1/444C02F2101/30
Inventor 王俊刘春雷李宾宾段文杰崔俊峰田振邦赵可江赵亮
Owner HENAN ACADEMY OF SCI CHEM RES INST CO LTD