With the development of industry, agriculture and cities, even increment of population, a great quantity of municipal sewage and industrial wastewater with the ammonia nitrogen are lining up into natural body of water. Ammonia nitrogen is poisonous to people and aquatics, and it can cause eutrophication. Therefore China has enlarged polluting control of the ammonia nitrogen, and drew up the stricter exhaustion standard for ammonia nitrogen, which is a challenge of the traditional processing fo...
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