Sewage treatment involves raw water treatment and industrial sewage treatment. It is used together with activated carbon in raw water treatment and can be used for coagulation and clarification of suspended particles in domestic water. Inorganic flocculants are used to replace organic flocculants with water treatment flocculants. Even if the sedimentation tank is not updated, the speed of water purification can be increased by more than 20%; in sewage treatment, the use of water treatment flocculants helps to improve the comprehensive utilization rate of water or sludge dewatering, as an indispensable part of industrial sewage treatment. The most widely used field of water treatment flocculants abroad is sewage treatment, which is being promoted abroad.

In sewage treatment, the main functions of water treatment flocculants:

Reduce the use of water treatment flocculants. Under the premise of meeting the same water quality, water treatment flocculants can be used as coagulants and other water treatment flocculants at the same time, thereby greatly reducing the use of water treatment flocculants. In order to improve water quality, the use of water treatment flocculants and inorganic flocculants in sewage treatment and industrial sewage treatment can significantly change water quality. The flocs formed by water treatment flocculants have high strength and good sedimentation performance, which can improve the solid-liquid separation speed and facilitate sludge dehydration. The use of water treatment flocculants can greatly reduce the use of inorganic flocculants for anti-corrosion and anti-scaling of circulating cooling systems, thereby reducing the corrosion of inorganic scaling on the surface of machinery and equipment.

Application in oil production

Water treatment flocculants are a multi-purpose oilfield chemical treatment agent that is widely used in drilling, cementing, completion, well repair, fracturing, acidification, water injection, water plugging, and tertiary oil recovery processes, especially in the fields of drilling, water plugging, and tertiary oil recovery. The aqueous solution of water treatment flocculants has high viscosity and has good thickening, flocculation and rheological regulation effects. It is used as an oil displacement agent and drilling mud regulator in oilfield exploitation. In the second half of oilfield exploitation, in order to improve the recovery rate of crude oil, my country mainly promotes polymer flooding and ternary composite flooding technologies. By injecting water treatment flocculant aqueous solution, it helps to increase the oil-water flow rate.

Papermaking field

Water treatment flocculants are widely used in the papermaking field, such as flow aids, filter aids, uniformity agents, etc. To improve paper quality, pulp dewatering performance, retention rate of fine fibers and fillers, and reduce raw material consumption and environmental impact. Using water treatment flocculants as dispersants helps to improve the uniformity of paper. Water treatment flocculants are mainly used in two aspects of the papermaking industry. One is to improve the retention rate of fillers, pigments, etc., reduce the loss of raw materials and the impact on the environment; the other is to improve the strength of paper. Adding water treatment flocculants to paper helps to improve the retention rate of fine fibers and filler particles on the network and accelerate paper dewatering. The formation of flocs can also reduce filtration and reduce filtration in the pulp.

Other industries

The food industry is used for cane juice clarification and syrup phosphorus flotation extraction in the production of cane sugar and beet sugar. Enzyme preparation fermentation broth flocculation clarification industry is also used for feed protein recovery, stable quality and good performance.