3 results about "Potassium persulfate" patented technology

The invention discloses a sediment improver for black and odorous water, which is composed of the following raw material components in percentages by weight: 20-40% of potassium ferrate, 25-35% of quicklime, 5-10% of polyaluminium chloride, 5-15% of potassium persulfate, and 15-25% of zeolite. Through the sediment improver for the black and odorous water provided by the invention, organic matterscan be completely decomposed, eutrophic substances are adsorbed and fixed, the sediment environment is completely changed, so the reproduction and growth of microorganisms and aquatic animals in waterare promoted, thereby accelerating the restoration of ecosystems.

The invention discloses a composite nano photocatalytic material as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic materials. The composite nano photocatalytic material is prepared according to the following steps: adding silicon dioxide into deionized water, uniformly dispersing, adding pyrrole and potassium persulfate, and carrying out in-situ polymerization reaction to obtain silicon dioxide coated polypyrrole; the preparation method comprises the following steps: taking water as a solvent, adding aminated zinc oxide, uniformly stirring, adding silicon dioxide coated polypyrrole, and stirring at 50-60 DEG C to obtain the composite nano photocatalytic material. The composite nano photocatalytic material prepared by the invention has the advantages that the photocatalytic effect is improved, and the COD (Chemical Oxygen Demand) removal rate is increased.