Method for dephosphorization of electroplating wastewater

A technology for electroplating wastewater and water conservancy, which is applied in the fields of metallurgical wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. Reasonable structure, improving the efficiency of wastewater treatment and social, improving the effect of biodegradability

Active Publication Date: 2016-08-31
惠州金茂源环保科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The quality of the so-called dephosphorization agents varies, and there are many types. Some of them are good for simple wastewater treatment, but not targeted for complex wastewater, and some are only effective for a single indicator, so detailed selection must be done. time, labor

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  • Method for dephosphorization of electroplating wastewater
  • Method for dephosphorization of electroplating wastewater

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Embodiment Construction

[0027] The following examples further illustrate this application

[0028] An embodiment of the present invention is a method for removing phosphorus from electroplating wastewater (the electroplating wastewater treatment system is such as figure 1 Shown), including the following steps:

[0029] The electroplating wastewater is passed through the hydrolysis acidification tank 101, the activated sludge system 102, the inclined tube sedimentation tank 103, the ozone sedimentation tank 104, the aerated biological tank 105, the Fenton coagulation tank 106 and the chemical sedimentation tank 107 in order to meet the discharge standards.

[0030] Specifically:

[0031] The electroplating wastewater contains about 20 mg / L of phosphorus before entering the hydrolysis acidification tank.

[0032] Hydrolysis acidification tank:

[0033] The hydrolysis acidification tank uses polyethylene fillers to increase the contact area between the waste water and the fillers. Some inorganic particles and sus...

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Abstract

The invention relates to a method for dephosphorization of electroplating wastewater. The method includes the following steps: enabling the electroplating wastewater to sequentially pass a hydrolysis acidification tank, an activated sludge system, an inclined tube sedimentation tank, an ozone sedimentation tank, an aerated biological tank, a Fenton coagulating basin and a chemical precipitation tank, and discharging the electroplating wastewater up to the standard. The 'biochemical treatment-advanced oxidation-coagulating sedimentation' processes are integrated for deep treatment of non-positive phosphate in electroplating industry wastewater electroplating plots. By the method, the problem that it is not easy for the phosphorus index of the electroplating plots to reach the standard stably for a long time can be solved, wastewater treatment efficiency and social and economic benefits are improved, and clean production, energy conservation and emission reduction are realized.

Description

Technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for removing phosphorus from electroplating wastewater. Background technique [0002] In order to promote the development of the electroplating industry, comply with my country's work requirements for energy conservation, emission reduction and heavy metal pollution prevention. Thoroughly solve the problems of optimization and upgrading, clean production and pollution prevention in electroplating enterprises, and the implementation of "centralized construction and centralized pollution control" in electroplating enterprises has become the consensus of various government management departments. The electroplating industrial park gathers electroplating production enterprises with different production processes, and the quality and quantity of production drainage water has huge fluctuations. If the discharge of various pollutants exceeds the standard, it will cause ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/16
CPCC02F1/52C02F1/78C02F3/30C02F9/00C02F2103/16
Inventor 陈志才杨柽翰陆秀娟邹丽娜
Owner 惠州金茂源环保科技有限公司
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