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Dosage of polyaluminum chloride in different sewage

The flocculant PAC, i.e. polyaluminum chloride, is used in both domestic sewage treatment and industrial sewage treatment. Due to different sewage, the dosage of polyaluminum chloride PAC is different, and the dosage is also affected by other factors such as sewage sludge content, sewage content or temperature, water volume, etc. The empirical dosage of polyaluminum chloride in different sewage is given below.

Consumption of polyaluminum chloride in different sewage:

Domestic sewage: 2.5-25kg/1000 tons of water

Industrial sewage: 2.5-25kg/1000 tons of water

Urban sewage: 15-50 kg/1000 tons of water

Electroplating sewage: 20-100 kg/1000 tons of water

Metallurgical wastewater: 20-150 kg/1000 tons of water

Papermaking wastewater: 50-300 kg/1000 tons of water

Printing and dyeing wastewater: 100-300 kg/1000 tons of water

Bleaching and dyeing sewage: 100-300 kg/1000 tons of water

Paint making sewage: 100-300 kg/1000 tons of water

Tannery wastewater: 100-300 kg/1000 tons of water

Food sewage: 50-150 kg/1000 tons of water

Chemical sewage: 50-100 kg/1000 tons of water

Emulsion wastewater: 50-200 kg/1000 tons of water

Coal washing wastewater: 30-100 kg/1000 tons of water

The dosage of polyaluminum chloride agent is 20-50 kg of tap water and 50-100 kg of sewage for every 1000 tons of water. This ratio is the theoretical dosage of polyaluminum chloride directly used in raw water without other purification methods. In the actual process, since the raw water has gone through biochemical treatment and other chemical treatment processes, the dosage should be appropriately reduced. In addition, some flocculants close to polyaluminum chloride, such as polyaluminum ferric chloride, basic aluminum chloride, and polymeric ferric sulfate, can also be added with reference to this dosage, which only needs to be adjusted slightly in daily production.

The amount of polyaluminum chloride used is not the more the better, nor the less the better. Instead, it is necessary to find the best dosage for water treatment, so as to obtain the best treatment effect at the lowest cost!

Thank you for your attentionHenan aierfuke Chemical Co., Ltd：Focus on water treatment, only for the healthy world! Our company is committed toPolyaluminium chloride、Polyferric sulfateThe R & D, manufacturing and sales of series of water purification materials are willing to create success with our customers and friends.