Zero discharge of wastewater in electroplating parks is really a "false proposition"
Key points: Recently, a series of articles published by a public account on zero emission of wastewater in electroplating parks pointed out that zero emission of wastewater in electroplating parks is just a false proposition, which aroused heated discussions in the electroplating and sewage treatment industries. In recent years, as environmental protection enters the second half, industrial sewage treatment and resource utilization have been increasingly valued. As a veteran in the environmental protection industry for more than 20 years, the author has engaged in related research and practice on electroplating sewage and zero emissions. Therefore, he used a public account to make the following suggestions on the dispute over the zero emission of wastewater in the electroplating park, in order to promote the healthy development of the industry.
Key points: Recently, a series of articles published by a public account on zero emission of wastewater in electroplating parks pointed out that zero emission of wastewater in electroplating parks is just a false proposition, which aroused heated discussions in the electroplating and sewage treatment industries. In recent years, as environmental protection enters the second half, industrial sewage treatment and resource utilization have been increasingly valued. As a veteran in the environmental protection industry for more than 20 years, the author has engaged in related research and practice on electroplating sewage and zero emissions. Therefore, he used a public account to make the following suggestions on the dispute over the zero emission of wastewater in the electroplating park, in order to promote the healthy development of the industry. Editor's note: Recently, a series of articles published by a public account on zero emission of wastewater in electroplating parks pointed out that zero emission of
The sorrow of heavy metal pollution, you and I are all people in the game!
A large amount of heavy metal-containing wastewater will be generated during the electroplating production. According to relevant statistics, my country's electroplating industry emits 400 million tons of heavy metal-containing wastewater (chromium, cadmium, lead, mercury, silver, nickel, copper, zinc, etc.) every year. The environmental impact caused by heavy metal pollution is different from other pollutants. Most other pollutants can be removed through the environmental self-purification capacity, but heavy metals are enriched. Even if the concentration of heavy metal discharged with the wastewater is low, it can enter rivers, soil, and groundwater, absorbed by plants and animals, and finally enter the human body through the food chain, thus endangering human health. Many heavy metal teratogenic carcinogenic incidents that occurred at home and abroad in the last century will not be repeated. In recent years, rice cadmium exceeds the standard and food security and food safety issues such as mercury pollut
Zero discharge of sewage: Is it a marketing gimmick or an inevitable development of the times?
With the advancement of China as a world factory and dual circulation strategy, China's industrialization process has been further accelerated and improved, while industrial production has a huge discharge, and the industrial sewage pollutants emitted are complex and the concentration is high. Although my country's total water resources are abundant, its per capita water resource share is only 1/4 of the global average. The contradiction between water supply and demand is prominent. In normal years, water shortage is more than 50 billion cubic meters. If measures are not taken, it will not be able to meet the water demand for industrial production. The resource utilization of sewage is an inevitable choice to solve this water use contradiction. As a major pollutant discharger in industrial production, the electroplating industry has always been an industry that the environmental protection department focuses on supervision and regulation and rectification. Based on environmental and water resources consider
Why is the zero discharge of electroplating wastewater lagging behind: is it a barrier of interests or a technical problem?
So, why has the zero wastewater discharge in multiple industries been adopted and successfully implemented, while the development of zero wastewater discharge in electroplating parks lags relatively behind? The author believes that the implementation of zero emissions of electroplating wastewater may have moved the cake of some vested interests. Some people believe that zero emissions will increase the production and operation costs of electroplating enterprises and parks. They insist on adopting the inherent emissions model to meet standards and believe that zero emissions is an overcorrection. Admittedly, the author does not deny that achieving zero emissions will inevitably increase costs, but compared with ordinary industrial parks, electroplating parks have high added value, and the increase in costs caused by environmental protection can be completely digested internally. Let’s calculate the economic and environmental protection account below. The zero-discharge technology of wastewater in electroplat
The general trend of electroplating wastewater is zero discharge, so we should not be afraid of medical treatment or give up on food due to choking!
The author believes that the success of a wastewater treatment project depends mainly on three aspects: one is whether the process is scientific and reasonable, the second is whether the equipment configuration selection is scientific and reasonable, and the third is whether the management is systematic and scientific. Among them, whether the management is systematic and scientific, is the root cause of the stability of the wastewater treatment project. The most important aspect of management is the water quality control of the park. Due to the wide variety of electroplating processes, the wastewater quality of different enterprises varies greatly. The common feature is that it contains pollutants such as heavy metal ions, acids, organic matter, ammonia nitrogen, etc. Unlike the wastewater of a single electroplating enterprise, the wastewater in the electroplating park is mixed with the wastewater of multiple enterprises. With the continuous improvement of emission standards and the requirements for recycle