4results about How to "Optimal treatment process" patented technology

The utility model relates to the technical field of lead zinc ore beneficiation, in particular to a lead zinc ore dense medium grading selection-flotation combined separation system which comprises a dense medium separation system and a flotation system, and the dense medium separation system comprises a crushing and screening unit, a dense medium coarse fraction separation unit, a dense medium fine fraction separation unit and a fine ore water treatment unit. An outlet of the crushing and screening unit is divided into a coarse fraction outlet, a fine fraction outlet and a fine ore outlet, the coarse fraction outlet is connected with the dense medium coarse fraction separation unit, the fine fraction outlet is connected with the dense medium fine fraction separation system, and the fine ore outlet is connected with the fine ore water treatment unit. A coarse-fraction gravity concentrate outlet of the dense-medium coarse-fraction separation unit, a fine-fraction gravity concentrate outlet of the dense-medium fine-fraction separation unit and a concentrated fine ore outlet of the fine ore water treatment unit are respectively connected with the flotation system, so that the flotation system has the advantages of high economic benefit, low production cost, energy conservation, environmental protection and the like; and the lead-zinc ore beneficiation efficiency and the metal recovery rate are effectively improved.

The present application relates to the technical field of baked food, and particularly relates to an antioxidant baked composition and application thereof.The present application provides an antioxidant baked composition, which comprises an antioxidant composition and a baked ingredient; the antioxidant composition comprises the following components in parts by weight: 3-5 parts of chlamydomonas reinhardtii powder, 4-6 parts of tea tree flower powder and 3-5 parts of apocynum venetum tea powder.The chlamydomonas reinhardtii in the antioxidant composition of the present application contains algal polysaccharide and carotenoid, and provides high-quality protein and polyunsaturated fatty acid; the tea tree flower contains flavonoids and tea polysaccharide; the apocynum venetum tea contains flavonoid substances; the three raw materials are compounded in the present application, the active ingredients synergistically act, the antioxidant capacity is significantly improved, and the three raw materials synergistically enrich the nutritional composition (protein, dietary fiber and functional ingredients) of the product, realizing the dual values of "antioxidation + nutrition strengthening".

This invention pertains to the field of pickling wastewater treatment in the steel industry. It discloses a method and system for the resource-based treatment of industrial wastewater containing fluoride and heavy metal ions. The method involves using sodium hydroxide to convert heavy metal and fluoride ions in the wastewater into hydroxides and fluoride complexes, which are then co-precipitated and separated from the aqueous phase. Sodium hydroxide is then used to convert the co-precipitated heavy metal and fluoride complexes into water-insoluble heavy metal hydroxides and water-soluble sodium fluoride. Calcium hydroxide is used to convert sodium fluoride in the water into calcium fluoride precipitate and water-soluble sodium hydroxide. The resulting NaOH aqueous solution is reused as part of the sodium hydroxide solution used in the preceding steps. Calcium hydroxide is then used to completely precipitate any remaining trace amounts of heavy metal and fluoride ions in the wastewater. The resulting wastewater then enters a biological treatment system for denitrification. This invention significantly reduces the amount of sodium hydroxide used and the amount of solid hazardous waste generated, alleviating the burden on biological treatment and lowering the overall cost of wastewater treatment.

The leachate treatment system for an ecological landfill includes a landfill area, emergency municipal solid waste leachate treatment equipment, fly ash leachate treatment equipment, and a shared reverse osmosis unit. The landfill area includes an emergency municipal solid waste storage area and a fly ash storage area. Several dividing dams are interspersed within the emergency municipal solid waste storage area, forming several reusable storage areas. Through the redesign of a traditional fly ash landfill, an emergency disposal solution is provided for excess municipal solid waste generated due to sudden equipment failure and reduced incineration capacity. This allows the landfill to flexibly convert the reserved emergency municipal solid waste landfill area into a fly ash landfill area after emergency disposal of municipal solid waste and filling of the fly ash storage area to the designated elevation. A complete treatment system for municipal solid waste leachate and fly ash leachate is designed, utilizing shared equipment to reduce system costs and improving the overall treatment process accordingly.