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Treatment method for removing organic phosphate in electroplating wastewater

A technology for organic phosphate and electroplating wastewater, which is applied in metallurgical wastewater treatment, multi-stage water treatment, water/sewage treatment, etc. It can solve the problems of high cost and unstable removal efficiency, so as to improve treatment capacity and adsorption complexation Reaction efficiency and low operation and maintenance costs

Inactive Publication Date: 2018-07-06
HANGZHOU FUYANG HONGXIANG TECH SERVICES CO LTD
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Problems solved by technology

[0004] The removal of phosphorus in wastewater is a worldwide problem. For example, the chemical method is effective but the cost is high, while the biological method has the weakness of unstable removal efficiency. Therefore, it is necessary to get rid of the existing treatment technology ideas and develop a A new way to treat organophosphate in electroplating wastewater, and then develop a new form of electroplating wastewater organophosphate treatment technology

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  • Treatment method for removing organic phosphate in electroplating wastewater
  • Treatment method for removing organic phosphate in electroplating wastewater

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Embodiment Construction

[0017] Such as figure 1The treatment method for removing organic phosphate in the electroplating wastewater is shown. The electroplating wastewater containing organic phosphate enters the collection well 1 through the wastewater pipeline, where it is collected and initially stabilized. The outlet of the collection well 1 is connected to the coarse grid through the wastewater pipeline. Grid 2, where the large-diameter solid matter in the wastewater is removed, the outlet of the coarse grid 2 is connected to the primary sedimentation tank 3 through the wastewater pipeline, where the insoluble substances in the wastewater are further removed, and the outlet of the primary sedimentation tank 3 is connected to the pH through the wastewater pipeline Value adjustment tank 4, where the pH value of the wastewater is precisely adjusted. The pH value of the effluent from the pH value adjustment tank 4 ranges from 7.0 to 8.0 to meet the pH requirements of the water entering the mucus prote...

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Abstract

The invention discloses a treatment method for removing organic phosphate in electroplating wastewater. The wastewater is sequentially treated through a water collection well, a coarse screen, a primary sedimentation tank, a pH (Potential of Hydrogen) adjusting tank, a mucous protein-phosphate adsorption reactor, a centrifugal separator, a pH secondary adjusting tank, an aerated oxidation tank, asecondary sedimentation tank and a pure water tank to be treated. According to the treatment method, a rotary net box filled with Chinese yam and taro fragments is creatively used as a surface contactreaction medium; when the electroplating wastewater containing the organic phosphate is in contact with the surface contact reaction medium, the organic phosphate in the wastewater and mucous proteinare subjected to adsorption reaction through an adsorption effect of the mucous protein in Chinese yams and taros, so that a phosphate complex compound is generated; the complex compound is not dissolved into water and can be removed through centrifugal separation operation. Meanwhile, the Chinese yams and the taros and the like belong to common crops and are low-value consumables, so that the material cost of wastewater treatment can be greatly reduced.

Description

technical field [0001] The invention relates to a treatment method for removing organic phosphate in electroplating wastewater, which belongs to the field of wastewater treatment in environmental protection. Background technique [0002] In the electroplating industry and metal surface treatment industry, phosphate or polyphosphate is commonly used as a chemical reaction catalyst. Phosphorus is one of the elements necessary for biological growth. However, if the content of phosphate (especially organic phosphate) in water is too high (more than 0.2mg / L), it can cause excessive algae reproduction, and even reach a harmful level (called eutrophication), resulting in reduced transparency of lakes and rivers. , the water quality deteriorates; at the same time, the toxicity of organophosphates cannot be ignored, which will cause irreparable impacts on the ecological environment. [0003] At present, the common wastewater phosphorus removal technologies in my country include: (1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/16C02F101/34
CPCC02F1/001C02F1/28C02F1/286C02F1/38C02F1/385C02F1/52C02F1/66C02F1/72C02F9/00C02F2101/20C02F2101/34C02F2103/16C02F2301/08C05F7/005Y02A40/20
Inventor 李程伟
Owner HANGZHOU FUYANG HONGXIANG TECH SERVICES CO LTD
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