As an important measure for environmental protection, the reuse of electroplating wastewater requires strict implementation of relevant standards to ensure its quality and good operating results. At the same time, it is also necessary to strengthen its operation and management and actively promote the development of the circular economy.
Author: Marisa
I The significance and necessity of the electroplating wastewater reuse standard
As an important manufacturing enterprise, electroplating enterprises will produce a large amount of wastewater in their production process. If they are directly discharged into the environment, it will not only cause environmental pollution, but also waste a lot of valuable water resources. Therefore, the reuse of electroplating wastewater is of great significance and necessity for saving water resources, protecting the environment and promoting sustainable development.
II. The electroplating wastewater reuse standards generally implemented at home and abroad and their main contents
1. "Industrial Nanofiber/Hollow Fiber Integrated Membrane Distillation Wastewater Reuse Standard" (HJ 315-2006)
This standard stipulates the quality requirements for electroplating wastewater reuse water, mainly including the concentration limits of COD, SS, NH3-N, Cu, Ni, Cr and other indicators. Among them, the concentration limits of COD and SS are relatively strict, requiring to meet the requirements of Class II standards.
2. "Clean Production Audit Standard - Electroplating Industry" (GB/T 22318-2008)
This standard specifies the technical requirements for the reuse of electroplating wastewater, including its treatment process, reuse method, and treatment requirements during reuse, etc., aiming to promote the promotion and application of clean production technology.
3. "Industrial Circulating Water Quality Standard"
This standard specifies the quality requirements for different types of circulating water, including the requirements for the reuse of electroplating wastewater, requiring that the COD concentration should not exceed 100 mg/L, and the total heavy metal concentration should meet the environmental quality standards.
III. Operation, management and monitoring requirements for the reuse of electroplating wastewater
1. Operation and management
To do a good job in the reuse of electroplating wastewater, it is necessary to establish a sound operation and management mechanism. Including regular inspection of equipment operation, maintenance and repair, etc., to ensure the normal operation of equipment and improve the quality and reliability of reused water.
2. Monitoring
In order to ensure the quality of reused water, it is necessary to establish a stable water quality monitoring system, conduct regular monitoring of indicators such as sediments, chemicals, and microorganisms, and make adjustments and management based on the monitoring results.
IV. Conclusion
As an important measure for environmental protection, the reuse of electroplating wastewater needs to strictly implement relevant standards to ensure its quality and good operation effect. At the same time, it is also necessary to strengthen its operation and management and actively promote the development of circular economy.