At present, there are many kinds of polyaluminum chloride(PAC) products on the market. According to the drying method, they can be divided into drum polyaluminum and spray polyaluminum. According to the application field, they can be divided into drinking water grade and industrial grade polyaluminum chloride.
Features of roller polyaluminum:
The particles are large and the particle size is uneven. Although the dust during use is small, the solubility is poor. The quality is uneven, the content range is wide, and there are many impurities at low content.
Features of spray polyaluminum:
The particles are uniform, easy to dissolve, the quality difference is not large, the effective aluminum content fluctuates little, the impurities are few, and the customer's use is stable.
Drinking grade polyaluminum usage:
At present, surface water plants across the country need to add polyaluminum chloride as a flocculant to remove insoluble matter in water to remove turbidity. While removing turbidity, algae, heavy metals and other substances in raw water will have a certain removal effect. At present, China is facing the situation of falling groundwater level and lack of groundwater resources. Therefore, residents' drinking water will be fully transitioned to surface water, mainly from rivers, lakes, and reservoirs. Because surface water is exposed to the air for a long time, so If the content of impurities in the water is large, it is necessary to add polyaluminum to solve the impurities in the drinking water. According to statistics, the total daily supply of domestic water in China is 130 million cubic meters. According to the current situation of surface water quality in China, it is necessary to add 10g of polyaluminum chloride to treat one side of water on average to make the raw water clear, so the daily consumption of polyaluminum chloride It is 1,300 tons, and the annual national demand for drinking water grade polyaluminum chloride is 474,500 tons.
The current situation of the use of industrial grade polyaluminum:
At present, industrial polyaluminum is mainly used in enterprise sewage treatment and advanced treatment of urban sewage treatment. Enterprise sewage treatment mainly includes manufacturing, food processing industry, textile industry, printing and dyeing industry. Among them, industrial polyaluminum is used in a large amount, and the depth of urban sewage treatment plant is large. The amount of treatment used depends on the on-site process, and the amount used is about 20 kg/thousand cubic meters of water.
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.