Coagulation in water treatment

It is also true that many water treatment plants use ferric chloride as a coagulant in water treatment operations. Ferric ions are trivalent cations, much like aluminum ions. Since the DMP is driven by an electrochemical potential, it is thought that it might be possible to apply it to WTR generated from iron-based coagulants. It was therefore conceived that a single-step DMP could selectively recover ferric ions as well. 

Ferric salts (chloride or sulfate) are also used as coagulants in water treatment plants [50], and the resulting ferric hydroxide precipitates constitute a major portion of the clarifier sludge or WTR. In principle, the DMP is capable of selectively recovering... 

Iron(III) sulfate, Fe2(S04)3, is a yellow compound that is used as a coagulant in water treatment. Write a balanced chemical equation and a solubility product expression for its dissolution in water. 

Uses Flocculant and coagulant in water treatment fertilizer animal feed supplement paint pigment clarifier, nutrient, dietary supplement, processing aid, stabilizer in foods, infant formulas Regulatory FDA 21CFR 182.8315,184.1315, GRAS BATF 27CFR 240.1051 SARA reportable... 

Silicic acid from sodium silicate has long been used as a coagulant in water treatment, and the subject has been well summarized by Vail (192). 

Uses Paper coating/sizing/dry str. additive filter aid/flocculant in mining industry coagulant in water treatment viscosifier (oil-well fluids, slurry explosives) protective colloid/stabilizer/thickener/emulsifierforfoods/pharmaceuticals/cosmetics thickener, binder, emulsion stabilizer, film-former in cosmetics thickener, water-binder, stabilizer, lubricant for foods, pharmaceuticals, papermaking, mining, tobacco, textiles, explosives... 

Uses Germicide (duckweed killer), dispersant, coagulant In water treatment, petrol., paper, and textile Industries antlstat In plasfcs, pulp/paper Industries pigment coating agent textile softener emulsifer In photography germicide In foods. 

---