The disadvantages of polyaluminium chloride

Polyaluminium chloride is a kind of inorganic polymer flocculant, mainly through compressed double, adsorption mechanism, such as electric neutralization and adsorption bridging, sediment trap effect, make the tiny suspended particles in water and colloid ion stability, aggregation, flocculation, coagulation, precipitation, achieve purification treatment effect. Polyaluminium chloride by enhanced coagulation can effectively remove natural organic matter in water, achieve the goal of controlling drinking water disinfection by-products, polyaluminium chloride has a cast of the provinces, to build new structures and low operating cost advantages, is suitable for the reconstruction of the original system, and is worth promoting in the development. However, the application of enhanced coagulation also brings some problems:

1. Due to large doses of dosing coagulant in water treatment system of sludge is increased, the existing sludge dewatering system capacity will be poor; Enhanced coagulation conditions, is likely to reach ideal effect of turbidity removal, thus increasing the operation of the filter.

2. Total drug consumption increased, including adjusting coagulation pH value of the consumption of sulfuric acid and if consider corrosion problems the higher plant water pH value of soda lime consumption, etc.

3. Adverse to eliminate the impurity particles and pathogen Sue, to improve the soluble organic matter, COD removal ability is limited, not to eliminate the ammonia nitrogen, mineral oil, etc.Based on the raw water characteristics of a particular choice of coagulant species, pH value and increase dosage, does not necessarily work for all the raw water quality.

4. We poly aluminium chloride manufacturers to provide products to customers with good quality, and ensure the best service to customers, we always put the interests of customers first, only the customer satisfaction, we can better development.

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