9003-05-8 Cationic Flocculant Sewage Treatment Chemicals With 95% Purity

Treatment of Sewage Water and Organic Waste Water Industrial Wastewater Treatment Chemical

What is Flocculation?
A Two-Step Process
Flocculation is a two-step particle aggregation process in which a large number of small particles form a small number large flocs.

Step 1: Coagulation
Small particles usually carry negative surface charges that hinder aggregation and settling (1a). Coagulant chemicals can adsorb to the particles and balance the charges. The introduction of opposite charges enables particles sticking together to form stable and well suspended submicron flocs (1b). Rapid mixing is required for proper dispersion of coagulant chemicals, to promote particle collisions and submicron floc formation (1c).

Flocculation Process Step 1
Step 2: Flocculation
Flocculation requires gentle mixing and the use of a high molecular weight polymeric flocculant. The flocculant adsorbs to the submicron flocs and facilitates bridging of gaps between flocs (2a). Bringing particles closer together creates the effective range for Van Der Waals attraction forces to reduce the energy barrier for flocculation and loosely packed flocs form. Aggregation, binding, and strengthening of flocs occurs until visibly suspended macroflocs form (2b). At the right weight, size, and strength sedimentation occurs. Macroflocs are very sensitive to mixing and once torn apart by strong shear it is difficult or impossible for them to reform.

Flocculation happens naturally during the formation of snowflakes or subsea sediments but it is also deliberately applied in the biotechnology, petroleum, pulp and paper, and mining industries.

(1).Mud dehydrating agent: activated-sludge method normally can be used to process urban and industrial sewage water, biochemistry mud is normally colloid with strong hydrophilicity, has high organic content, and is difficult to dewater.

(2).Paper-making adhesive: In the paper making industry, the product can directly generate static bridging effect with inorganic salt ions, fiber and other organic organic polymers for achieving the effects of intensifying the physical intensity of paper, reducing fiber or cationic PAM paper reinforcing agent, being a water soluble cationic polymer containing carbamyl and the like, and the product can effectively improve the paper intensity, reduce loss of fiber and filler, and accelerate water filtration, and has the effects of intensifying, residency and filtration assistance. The product also can be used in white water treatment and has the prominent effect of flocculation in deinking process.

(3).Treatment of Sewage Water and Organic Waste Water: the product shows electropositivity in acid or alkaline media, thereby the product is extremely effective for flocculation, sedimentation and disambiguition of sewage water whose suspended particulates are provided with negative charge such as waste water of alcohol plant, waste water of brewhouse, waste water gourmet powder factory, waste water of sugar making plant, waste water of manufactured meat plant, waste water of beverage factory, waste water of printing & dyeing mill, and the like. The effect of using cationic-polyacrylamide is several times or dozens of times better than using anionic-polyacrylamide, nonionic- polyacrylamide or inorganic salt since the waste water is generally provided with negative charge.

(4).Used as water treatment flocculation agent of tap water plants with rivers as water sources: The product has small dosage, excellent effect and low cost, the effect is better when it is matched with organic flocculation agent particularly. It will become highly-effective flocculation agent for water plants on the river basins of Yangtze River, Yellow River, Huaihe River and other rivers.

(5).Oil field chemical agent: It can be used as anti-clay-swelling agent, thickening agent for oilfield acidification, and the like.