The industrial uses of calcium hydroxide are as follows:
First, environmental protection neutralizer acid wastewater, sewage treatment, sludge treatment, boiler flue gas desulfurization.
Second, chemical raw materials, additives, auxiliaries, filler leather, metallurgy, coatings, petroleum lubricants, paper, food, medicine, feed, etc.
Third, other uses: stone cutting aids, soil stabilizers, concrete conditioners, chemical reagents, gypsum board caulking coagulants, construction adhesive ingredients, calcium alkyl sulfonates, pharmaceutical acid stoppers, astringents, Hard water softeners, plastic fibers, etc.
Among them, for environmental protection treatment:
First, as a strong alkaline agent to neutralize acidic wastewater or heavy metal wastewater, so that the acidic wastewater becomes neutral. Second, absorb SO 2 in boiler flue gas, so that the sulfur content of exhaust flue gas meets environmental protection standards.
Thirdly, it can help coagulation of colloidal particles in wastewater, and act as a particle nucleus weighting agent to accelerate the separation of insolubles.
Fourth, it can effectively remove anions such as phosphate, sulfate and fluoride ions.
Fifth, it can destroy the combination of sulfamate and other complexing agents or chelating agents to some metal ions. Sixth, by adjusting the pH value, the emulsion wastewater has the effect of destabilizing and breaking the demulsification. Seventh, compared with the effect of wastewater treatment, it is a conventional alkaline agent for wastewater treatment.
Special ash calcium powder (calcium hydroxide) for environmental protection: mainly used for waste incineration. Flue gas desulfurization, industrial sewage treatment and other industries.
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