3results about How to "Strong bridging ability" patented technology

The invention relates to the technical field of emergency treatment of marine ecological disasters, and provides an algae remover for emergency treatment of red tide and a preparation method of the algae remover. The algae remover comprises the following raw materials in parts by weight: 70-90 parts of clay, 10-40 parts of an inorganic flocculant and 0.02-1 part of an organic flocculant. The organic flocculating agent comprises poly dimethyl diallyl ammonium chloride and polyvinyl alcohol; the mass ratio of the poly dimethyl diallyl ammonium chloride to the polyvinyl alcohol is 10: (1-8). According to the technical scheme, the problem of low red tide organism removal rate of an algae remover in related technologies is solved.

The invention relates to the technical field of sewage treatment agents, in particular to an aluminum-manganese composite coagulant and a preparation method and application thereof. The preparation method provided by the invention comprises the following steps: dissolving an aluminum salt and a manganese salt to obtain a solution containing the aluminum salt and the manganese salt; mixing the solution containing the aluminum salt and the manganese salt with an alkaline solution for the first time to obtain a first mixed solution; and secondarily mixing the first mixed solution, a sodium silicate solution and a polyacrylamide solution to obtain a second mixed solution, and standing and curing the second mixed solution to obtain the aluminum-manganese composite coagulant. The aluminum-manganese composite coagulant obtained by the preparation method disclosed by the invention has a wider pH application range, the capability of removing natural organic matters is improved, and the chromaticity problem caused by manganese residues can also be reduced. And the flocculant is extremely easy to flocculate and settle in the water treatment process, so that chemical residues can be reduced.

The present application relates to sewage treatment agent technical field, specifically relates to a kind of aluminum manganese composite coagulant and its preparation method and application.The preparation method provided by the present application includes the following steps: aluminum salt, manganese salt are dissolved, to obtain the solution containing aluminum salt and manganese salt;The solution containing aluminum salt and manganese salt, first mixing of alkaline solution, to obtain first mixed liquor;The first mixed liquor, sodium silicate solution and polyacrylamide solution are second mixed, and the second mixed liquor obtained is cured to obtain aluminum manganese composite coagulant.The aluminum manganese composite coagulant obtained by the preparation method of the present application has a more extensive pH adaptation range, improves the ability to remove natural organic matter, and can also reduce the color problem caused by manganese residue.Moreover, it is extremely easy to flocculate and settle during water treatment, which can reduce chemical residues.