3results about How to "Reduce water pollution" patented technology

The invention relates to the field of solid waste resource utilization research, in particular to treatment-free red mud-based regenerated flow state solidified soil suitable for foundation pit backfill and a construction method thereof, and the treatment-free red mud-based regenerated flow state solidified soil comprises the following components in parts by mass: 100 parts of engineering residue soil, 10-30 parts of red mud compound regenerated micro powder, 50-70 parts of regenerated fine aggregate and 5-10 parts of a water-based activator. The red mud compound regenerated micro powder, the regenerated fine aggregate, the engineering residue soil and the water-based exciting agent are stirred and mixed uniformly in proportion to obtain the treatment-free red mud-based regenerated fluid-state solidified soil suitable for foundation pit backfilling, the red mud does not need to be dried by adopting the fluid-state solidified soil, the construction method is simple, the feasibility is high, and the construction cost is low. The backfilling compactness and strength of the foundation pit can be effectively guaranteed without rolling, post-construction settlement is reduced, a large number of solid waste resources such as red mud and construction waste are utilized, and the good energy-saving and carbon-reducing effects are achieved.

This application discloses a water treatment structure, comprising: a treatment cylinder; end caps, with end caps at both ends of the treatment cylinder; a wastewater inlet, disposed within the treatment cylinder; an ultrafiltration support, disposed within the end caps; a hollow fiber bundle, disposed between two ultrafiltration supports; an adsorber, disposed at the wastewater inlet; and a treated water outlet, disposed at the bottom end cap. By organically combining the physical adsorption of the adsorber with the physical retention of the hollow fiber bundles, it can effectively remove particulate matter, organic pollutants, ammonia nitrogen, insects, algae, bacteria, and viruses from water, while simultaneously removing algal toxins and odorous substances from high-algae water, ensuring that the content of algal toxins and odorous substances in the treated effluent meets the requirements of the "Standards for Drinking Water Quality"; effectively improving water treatment efficiency, reducing water pollution, and enhancing the safety of drinking water for urban residents.

This utility model relates to the field of marine aquaculture technology and discloses a marine aquaculture feed spreader, including an adjusting box. A feed cylinder is fixedly connected to the top of the adjusting box, and the bottom of the feed cylinder extends into the adjusting box. A fixing plate is fixedly connected to the bottom of the feed cylinder. A feed inlet is opened on the top of the fixing plate, and a limiting groove is opened at the bottom of the fixing plate near the feed inlet. A rotating disk is movably connected to the bottom of the inner wall of the adjusting box. Two oblique limiting grooves are opened on the top of the rotating disk in an annular arrangement. A baffle is slidably connected to the top of the inner wall of the limiting groove, and one end of the baffle is inserted into one side of the inner wall of the oblique limiting groove. Through the cooperation of the above structures, this device achieves precise adjustment of the feed output, which can flexibly control the feeding amount according to the aquaculture needs. At the same time, it can adapt to complex aquatic environments, ensure the accuracy and stability of the spreading position, and optimize the spreading effect, so that the feed evenly covers the aquaculture area, improving the efficiency and quality of marine aquaculture and making it more practical.