Inner Mongolia wastewater treatment printed circuit board wastewater treatment :
Process description: Electronic circuit board production wastewater is mainly divided into three categories: organic wastewater, which has a large organic pollution load, high pH value, complex components, poor biodegradability, and large fluctuations in water quality and water quality; heavy metal wastewater, which has many types of heavy metals, Diverse storage forms, complex complexing ligands, poor biodegradability, and large fluctuations in water quality; ammonia nitrogen wastewater has high ammonia nitrogen content, low pH value, and large fluctuations in water quality and water quality. The effluent from the conventional traditional treatment process is difficult to meet the "Emission Standards for Electroplating Pollutants (GB21900-2008)". Our company has developed the "combined physical and chemical pretreatment + comprehensive biochemical treatment" efficient combined process treatment technology. After the heavy metal wastewater is oxidized and broken, the heavy metal is removed by secondary precipitation, and then the composite nano-adsorption is used to check the heavy metal to meet the relevant emission standards;
After the organic wastewater is acidified and degreased, the air-floating precipitation integration technology is used to remove the slightly soluble organic pollutants, which greatly reduces the organic pollution load. Finally, the secondary precipitation enters the heavy metal wastewater treatment system; the ammonia nitrogen wastewater is firstly subjected to secondary precipitation to remove heavy metals. Then, the ammonia nitrogen content in the wastewater was greatly reduced by the high-dispersion atomization blow-off technology, and finally the CBMS-MACA intermittent biochemical reaction, the effluent stably met the "Electroplating Pollutant Discharge Standard (GB21900-2008)".
Adopting high-efficiency water treatment equipment integrated with polymerization, coagulation and sedimentation, has the characteristics of high removal efficiency, stable wastewater treatment effect in Inner Mongolia , small land occupation, low dosage, and high organic matter removal efficiency.
The composite nano-adsorption technology is adopted to deal with the trace heavy metal ions that cannot be removed by precipitation or oxidation, and to ensure that the concentration of heavy metals in wastewater reaches the "Electroplating Pollutant Discharge Standard (GB21900-2008)".
Adopting high-dispersion atomizing air blow-off technology, the high ammonia nitrogen wastewater in the alkaline etching section can be removed with high efficiency under low energy consumption, and the subsequent biochemical burden is reduced to ensure that the ammonia nitrogen concentration in the wastewater reaches the standard.
Improved batch biochemical reactor (CBMS-MACA) is used to create multiple oxygen concentration environments in the same reactor, which can simultaneously degrade COD, ammonia nitrogen and total nitrogen, with a small footprint and high efficiency.
Comparative analysis of integrated equipment at the bottom of the window and conventional processes:
Implementing product quality certification can ensure product quality, improve product reputation, and protect the interests of users and consumers. Therefore, users will check and ask about the relevant quality certification content when purchasing products. However, not all products have a strict and standardized quality certification system, and integrated sewage treatment equipment is one of them. Today, Mengyuan Environmental Protection will reveal the reason.
The integrated sewage treatment equipment is designed with reference to the urban sewage treatment process. The equipment is composed of multiple components, including equipment housing, aeration equipment , water pumps, pipes, partitions, fillers, and control systems. These accessories are made by multiple manufacturers. produce. The integrated wastewater treatment equipment manufacturer assembles the final finished product through the purchased parts.
At present, domestic domestic discharge standards for sewage treatment mostly use Level A or Level B. The quality of the effluent water of integrated sewage treatment equipment cannot be detected before it is officially operated. There is no domestic testing standard for integrated sewage treatment equipment. The so-called ISO9001 / OHS18001 and other certification systems target only those parts that are standardized. Inner Mongolia sewage treatment is not a complete set of integrated sewage treatment equipment. Therefore, many manufacturers often have false elements when quoting prices. Once the project effluent is not up to standard, the quality problems of the integrated equipment are transferred to the project design and construction loopholes. Inner Mongolia wastewater treatment leaves huge hidden dangers for users' rights protection.
The actual measurement of the effluent is the only standard for checking the quality of the integrated sewage treatment equipment. The qualification certification of environmental protection equipment manufacturers is just a reference. The quality of the technology depends on the actual results. Mengyuan environmental protection advises users to write effluent quality and operation and maintenance services into the contract when purchasing equipment to avoid unnecessary losses.