75results about How to "Efficient purification effect" patented technology

The invention belongs to the technical field of environment-friendly materials, and particularly relates to a sewage purifying agent with photocatalysis and coagulation composite performance and application thereof. Titanium dioxide powder is prepared through butyl titanate hydrolysis and then is compounded with iron trioxide, and finally a nanometer Fe2O3-TiO2 composite material is chelated with a polysilicic acid solution, aluminum chloride and iron chloride together to prepare the sewage purifying agent of modified titanium dioxide chelated polysilicate aluminum ferrite. The sewage purifying agent prepared by the invention has a coagulation performance as well as an efficient photocatalysis and oxidization performance,can photocatalytically degrade sewage, such as organics with high concentration, ammonia-nitrogen wastewater and heavy metals, and has a very good practical application prospect.

The invention discloses an ecological soil purifying bed for agricultural non-point source pollution, and belongs to the field of sewage treatment equipment. The ecological soil purifying bed comprises a filtering purifying layer, a water distributing pipe, a surface sandy soil combined planting layer, an efficient pesticide purifying layer, an efficient nitrogen and phosphorus absorbing purifying filler layer, a gravel water collecting layer, a seepage-proofing layer, a perforating draining pipe and a water discharging area; flow control valves are arranged at a water inlet and a water outlet of the device; the filtering purifying layer is arranged at the head section of the purifying bed and used for removing large granular materials in non-point source streamflow; the surface sandy soil combined planting layer, the efficient pesticide purifying layer, the efficient nitrogen and phosphorus absorbing purifying filler layer and the gravel water collecting layer are distributed in the ecological soil purifying area from top to bottom and used for efficiently removing pesticides, N, P and other pollutants in the non-point source pollution; plants are planted on the surface of the sandy oil combined planting layer; the perforating draining pipe is arranged in the gravel water collecting layer. The ecological soil purifying bed is reasonable in area distribution, compact in structure, convenient to operate, and obvious in treatment effect according to the characteristics of the agricultural non-point source pollution.