Chemical Classification Process for Treatment of Steel Bucket Electroplating Production Wastewater (2)

2.4 Major Engineering Equipment and Structures

The main structures and equipment of this processing station are shown in Table 2 and Table 3.

3, processing effect


The project was completed and put into operation in June 2001. The entire treatment process was stable and the water quality was good. The results of the most recent spot inspection are shown in Table 4.


As can be seen from Table 4, the effluent water quality monitoring indicators all meet the first-grade standard of Integrated Wastewater Discharge Standard (GB8978-96), and the main pollutants in the wastewater are efficiently removed, and the removal rates of total chromium, total nickel, and total copper are both More than 99%.

4. Results and Discussion

(1) A chemical classification method is used to treat electroplating waste water, and the complete precipitation environments of copper, nickel, and chromium are separately controlled so as to avoid interference with each other. Effectively solves the shortcomings of poor quality of traditional effluent water quality, and the quality of effluent is significantly better than that of mixed plating wastewater.

(2) The whole treatment process is intermittent operation, and the purpose of meeting the discharge standards is truly achieved. This prevents the continuous operation process from affecting the effluent quality due to unobservable errors and changes in water quality and quantity.

(3) The treatment process has good adaptability to the change of water quality and water quantity of the influent water. Because the sudden change of water quality and water quantity has no effect on the water discharge, this process is more suitable for electroplating wastewater treatment with periodic production.

(4) The practice of process operation shows that the entire project has a low investment, simple process, stable operation, good operability, moderate operating costs, and basic control at 4.0 yuan/m3.

(5) As the wastewater discharged into the reservoir after treatment is mixed, it may be used as irrigation water, and the treated water is strictly required. Therefore, the project is managed by the management company and monitored by the environmental protection department online. Practice has proved that this method is suitable for local practice. Happening.
(6) Due to the requirement of expanding production, the electroplating city is constructing the second phase of the project and will increase the electroplating wastewater by 800m3/d. Therefore, this project is a good reference for the construction of a wastewater treatment station with a more concentrated electroplating business.



Huang Ming 1, Wei Caichun 1, Zhao Meng 2, Lu Yanqin 1, Zhang Xuehong 1, Wang Dunqiu 1
(1. Department of Resources and Environmental Engineering, Guilin University of Technology; 2. Guilin Municipal Environmental Sanitation Management Office)

Source: China Steel Barrel Packing Network

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