Heavy metal zero-emission treatment system and working method thereof

A treatment system and zero-discharge technology, applied in the direction of sludge treatment, filtration treatment, sedimentation treatment, etc., can solve the problems of residual discharge and incomplete treatment, and achieve the effect of water saving and recycling, simple structure and water purification effect

Pending Publication Date: 2021-09-28
永顺环保工业太仓有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the existing heavy metal wastewater treatment system can treat sewage to a certain extent, due to the differences in its equipment and treatment methods, the treatment will not be thorough enough and the problem of residual discharge will occur. Therefore, the existing heavy metal wastewater treatment technology is still needs to be improved

Method used

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  • Heavy metal zero-emission treatment system and working method thereof
  • Heavy metal zero-emission treatment system and working method thereof
  • Heavy metal zero-emission treatment system and working method thereof

Examples

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Comparison scheme
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Embodiment 1

[0057] As shown in the figure, a heavy metal zero-discharge treatment system includes: a pretreatment system 1, a low-concentration cleaning wastewater pretreatment system 2, and a high-concentration wastewater treatment system 3. The low-concentration cleaning wastewater pretreatment system 2 includes sterilization, ultra- Filtration unit 21 and multi-stage RO concentration unit 22, the output end of the pretreatment system 1 is connected to the water inlet of the sterilization and ultrafiltration unit 21, and the output end of the sterilization and ultrafiltration unit 21 is connected to the multi-stage RO concentration unit 22 The output end of the multi-stage RO concentration unit 22 is connected to the input end of the high-concentration wastewater treatment system 3 .

[0058] The pretreatment system 1 described in this embodiment comprises a system cleaning tank 11, a reaction tank 12, a sedimentation tank 13 and an intermediate water tank 14, the output end of the syste...

Embodiment 2

[0065] As shown in the figure, a heavy metal zero-discharge treatment system includes: a pretreatment system 1, a low-concentration cleaning wastewater pretreatment system 2, and a high-concentration wastewater treatment system 3. The low-concentration cleaning wastewater pretreatment system 2 includes sterilization, ultra- Filtration unit 21 and multi-stage RO concentration unit 22, the output end of the pretreatment system 1 is connected to the water inlet of the sterilization and ultrafiltration unit 21, and the output end of the sterilization and ultrafiltration unit 21 is connected to the multi-stage RO concentration unit 22 The output end of the multi-stage RO concentration unit 22 is connected to the input end of the high-concentration wastewater treatment system 3 .

[0066] The pretreatment system 1 described in this embodiment includes a system cleaning tank 11, a reaction tank 12, a sedimentation tank 13 and an intermediate water tank 14, the output end of the system...

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Abstract

The invention discloses a heavy metal zero discharge treatment system which comprises a pretreatment system, a low-concentration cleaning wastewater pretreatment system and a high-concentration wastewater treatment system, the low-concentration cleaning wastewater pretreatment system comprises a sterilization and ultrafiltration unit and a multi-stage RO concentration unit, and the output end of the pretreatment system is connected with the water inlet end of the sterilization and ultrafiltration unit; the output end of the sterilization and ultrafiltration unit is connected with the multi-stage RO concentration unit, and the output end of the multi-stage RO concentration unit is connected with the input end of the high-concentration wastewater treatment system. The heavy metal zero-discharge treatment system is simple in structure, reasonable in design and easy to produce, the structure of the discharge system is optimized, multi-stage purification treatment is achieved, the sewage treatment effect is greatly improved, zero discharge is achieved, and therefore the heavy metal zero-discharge treatment system better meets the production requirement.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a heavy metal zero discharge treatment system and a working method thereof. Background technique [0002] Heavy metal wastewater treatment refers to the process of purifying the heavy metals contained in sewage to meet the water quality requirements of a certain water body for drainage or reuse. [0003] Although the existing heavy metal wastewater treatment system can treat sewage to a certain extent, due to the difference in its equipment and treatment methods, the treatment will not be thorough enough and the problem of residual discharge will occur. Therefore, the existing heavy metal wastewater treatment technology is still There is room for improvement. Contents of the invention [0004] Purpose of the invention: In order to overcome the above disadvantages, the purpose of the present invention is to provide a heavy metal zero-discharge treatment sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F11/121C02F11/122C02F101/20
CPCC02F9/00C02F11/121C02F11/122C02F1/444C02F1/441C02F1/001C02F1/66C02F2001/007C02F1/50C02F1/78C02F1/04C02F1/447C02F5/08C02F1/5281C02F1/52C02F1/5209C02F2001/5218C02F2101/20C02F2301/08C02F2303/20
Inventor 徐振洋徐炜翔
Owner 永顺环保工业太仓有限公司
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