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You should know these treatments with ammonia-nitrogen-containing pharmaceutical wastewater by anaerobic + aerobic process.
In industrial production, ammonia nitrogen wastewater is generally composed of ammonia water and inorganic ammonia, which can be derived from chemical, metallurgical, chemical fertilizer, gas and other industries. If it is discharged without treatment, it will have a serious impact on the environment. Therefore, the treatment of ammonia-nitrogen wastewater is particularly important, and the ammonia nitrogen wastewater treatment process also varies according to the water quality and concentration of pollutants. Among them, common methods include chemical precipitation, blow-off, conventional biological methods, membrane separation methods, and ion exchange methods.
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Draft amendment to the Water Pollution Prevention and Control Law: sludge treatment should conform to the national standard record
The 28th meeting of the Standing Committee of the 12th National People's Congress was held in Beijing from June 22nd to 27th. The meeting reviewed the draft amendment to the Water Pollution Prevention and Control Law twice. The draft pointed out that some enterprises and the public have suggested that with the continuous improvement of the centralized treatment rate of urban sewage, the sludge generated after sewage treatment is increasing, and some sludge contains toxic and harmful substances. If not handled properly, it will cause new pollution. Provision should be made for sludge treatment and disposal.
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Harmless treatment——Let livestock and poultry go further
The sick and dead livestock and poultry are decomposed and fermented at high temperature. After about two days, they can turn waste into treasure and produce powdered organic fertilizer. Recently, in the harmless treatment center of the dead animal and poultry of Zhenghua Agriculture and Animal Husbandry Co., Ltd. in Nanchang City, the reporter witnessed the whole process of “transforming” the sick and dead poultry into treasure.
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Concentrated and harmless treatment of sick and dead livestock
According to this opinion, our province will implement the responsibility of harmless treatment. On the one hand, strengthen the main responsibility of production and business operators. Units and individuals engaged in raising, slaughtering, operating, and transporting livestock and poultry are the main responsible persons for the harmless treatment of sick and dead livestock and poultry. They are obliged to promptly and harmlessly treat sick and dead livestock and poultry and report to the local animal husbandry and veterinary authorities.
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Promote the construction of harmless treatment mechanism for sick and dead livestock and poultry
Yesterday afternoon, Jiaozuo City held a conference on the construction of a mechanism for harmless treatment of sick and dead livestock and poultry, and reported on the construction of a harmless treatment mechanism for sick and dead animals in the city, and made specific arrangements for the next step. Vice Mayor Wang Jianxiu attended the meeting.
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Practice of harmless treatment of dead animals and poultry in Zhucheng, Shandong
Livestock and poultry farmers shall conduct harmless treatment of sick and dead livestock and poultry in strict accordance with the treatment regulations prescribed by the State. It is forbidden to sell, process or discard sick and dead animals. At present, the most common method for the harmless treatment of sick and dead livestock and poultry is to incinerate and then bury it deeply, and this treatment will cause secondary pollution to the atmosphere and water source, and it cannot be truly "harmless."