31results about How to "Reduce the amount of pollutants" patented technology

The new process for treating acidic waste water containing non-ferrous metal ions includes two-stage treatment method, one of them adopts lime neutralization treatment step, the lime milk can be added into said acidic waste water to make the pH value of waste water up to 7.5-9, and another method is a ferric polysulfate precipitation treatment step, the ferric polysulfate is added into the supernatant fluid of the waste water, and the pH value of said waste water can be up to 7.5-9.

The invention discloses a riparian zone sewage reduction method, particularly a riparian zone sewage reduction method by combining a perennial vegetation zone and an infiltration reinforcement zone. The method comprises the following step: arranging an infiltration reinforcement zone and a perennial herb sewage interception buffer zone for the riparian zone, wherein the sewage interception buffer zone is composed of a hygrophytic herb zone, a mesozoic herb zone and a xeromorphic herb zone which are sequentially arranged from the riverbank to the place far away from the riverbank, a reaping mode is adopted to reduce the growth of the annual herbs, and the infiltration reinforcement zone is arranged between the hygrophytic herb zone and the mesozoic herb zone. The method can effectively intercept sewage and increase the infiltration amount of underground water; and the perennial herbs have developed root systems, so the reasonable arrangement of the perennial herbs is beneficial to enhancing the sewage interception capacity and water / soil retention capacity of the riparian zone. By sectionallly planting and arranging the hygrophytic, hygrophytic and xeromorphic perennial herbs, the vegetation can be regulated to enhance the sewage interception capacity of the riparian buffer zone.

The invention discloses a pollutant-intercepting gutter inlet which comprises a gutter inlet (5) and a rainwater strainer (2) mounted on the gutter inlet (5), and is characterized in that an intercepting weir (3) is arranged on a slope section at the periphery of the gutter inlet (5); and the intercepting weir (3) winds around the periphery of the gutter inlet (5). The pollutant-intercepting gutter inlet has the advantages that the bias of a pollutant-intercepting technology in the gutter inlet is overcome, small particle solid pollutants and large pollutants are intercepted outside the gutter inlet, the quantity of pollutants entering the gutter inlet is reduced, the blockage of an urban rainwater pipe network system is reduced, the pipeline dredge frequency is reduced, and the gutter inlet is conveniently maintained and managed.

The invention discloses a method for producing natural essence for Luzhou-flavor wine from fermented grain waste of wine by solid / liquid combined fermentation, which comprises the following steps: adding saccharifying enzyme, acid protease, high-temperature-resistant active dry yeast, medium-temperature yeast and cellulase into fermented grain waste of wine; carrying out solid-state fermentation in a cellar; adding rhizopus, red yeast rice, high-temperature yeast, fermented grain waste wine and concentrated hexanoic acid fermentation liquid; carrying out solid / liquid combined fermentation in the cellar; and carrying out extractive distillation on the fermented unstrained wine, carrying out sectionalized concentration, blending and compounding to obtain the natural essence product for Luzhou-flavor wine. The invention has the advantages of low cost and short production cycle, and can treat 35000t of fermented grain waste per year if a production scale of 8000t / a is formed, thereby performing a huge function on regional environmental protection; and meanwhile, the natural essence can be used as a seasoning liquid for brewage so as to avoid temporary fragrance caused by adding synthetic monomer essence, thereby enhancing the natural sensation and solid-state sensation of wine and enhancing the quality of wine.

The invention relates to a method for crystallizing amorphous silicon thin films in a multi-cycle rapid thermal annealing auxiliary metal induced mode, and belongs to the technical field of polycrystalline silicon thin film preparation processes. The amorphous silicon thin films are deposited on a glass slide substrate with a vapour deposition method; nickel chloride is dissolved into mixed solution of ethyl alcohol and toluene, and ethyl cellulose is added in to form a viscid and thick solution; spinning coating is performed on the solution, and then annealing is performed on the solution at 400 DEG C for two hours; then rapid thermal annealing processing is performed, the temperature rising rate is about 150-200 DEG C / s, temperature of thin film samples is raised to about 600 DEG C from the room temperature, the 600 DEG C is kept for 15s, then natural cooling is performed, and next-time rapid thermal annealing processing is performed after the temperature of the thin films is lowered to the room temperature; the amorphous silicon thin films can be crystallized after three times of rapid thermal annealing. Compared with a traditional solid-phase crystallizing method and a conventional metal induced crystallizing method, the method has the advantages that annealing temperature is lowered, residual metal pollutant amount is reduced, the annealing time is shortened, and the method is simple in process and low in cost.