How to deal with ammonia nitrogen wastewater in chemical industry?
Release time:
2024-04-30
As we all know, the wastewater in the chemical industry has a wide variety and complex composition, and most industries contain highly toxic substances, which are difficult to be degraded by microorganisms. Among them, ammonia nitrogen wastewater in the chemical industry is a kind of chemical wastewater that is difficult to degrade. Then this article explains how to deal with ammonia nitrogen wastewater in the chemical industry?
As we all know, the wastewater in the chemical industry has a wide variety and complex composition, and most industries contain highly toxic substances, which are difficult to be degraded by microorganisms. Among them, ammonia nitrogen wastewater in the chemical industry is a kind of chemical wastewater that is difficult to degrade. Then this article explains how to deal with ammonia nitrogen wastewater in the chemical industry?
Chemical wastewater, ammonia nitrogen wastewater
Ammonia nitrogen wastewater in the chemical industry, pharmaceutical industry, food industry, landfill, fertilizer, coking and petrochemical industry, Hongsen environmental protection chemical wastewater treatment equipment can be used in the physical and chemical method of blowing off method, zeolite ammonia removal method, membrane separation technology, MAP precipitation method, chemical oxidation method and biological nitrogen removal method.
Ammonia nitrogen wastewater is then distinguished according to the low concentration of Senior high school and other wastewater treatment processes. Taking high concentration and other ammonia nitrogen wastewater as an example, the method of stripping is adopted:
Blow-off method is a method of separation by using the gas-liquid equilibrium relationship between the gas phase concentration and the liquid phase concentration of ammonia nitrogen under alkaline conditions. The volatile solute and dissolved gas in the wastewater can be transferred from the liquid phase to the gas phase by air, and this process is the so-called blow-off treatment method.
The ammonia nitrogen index of some chemical wastewater after stripping treatment is still as high as 100mg/L or more, so it still needs to be discharged after being supplemented by other processes.
Chemical wastewater treatment equipment can remove more than 96% of ammonia nitrogen in wastewater. For medium and low concentration ammonia nitrogen sewage treatment, the folding point ammoniation method should be adopted, and the operating cost of the folding point ammoniation method will be relatively large.
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