7 results about "Inorganic pollutants" patented technology

The application discloses a hydrophilic round square membrane bed biological purification system and method, which comprises an aerobic main body reaction unit, one end of the aerobic main body reaction unit is provided with a unit inlet overflow pipe part, and the other end is provided with a unit outlet overflow pipe part, a water passing arc wall part is arranged in the aerobic main body reaction unit, the water passing arc wall part comprises a front area mixed medicine arc wall part, a interception and filtration purification arc wall part and a rear area mixed medicine arc wall part, a water round square membrane bed part is arranged between the front area mixed medicine arc wall part and the interception and filtration purification arc wall part, an air inlet of the water round square membrane bed part is connected with an aeration oxygen supply part, and air inlets of the front area mixed medicine arc wall part and the rear area mixed medicine arc wall part are connected with front and rear arranged medicine adding parts; the application can efficiently and quickly and with energy saving and low consumption deal with organic or inorganic pollutants with normal chain functional groups which are carried in water.

The application provides a collection system and method of gaseous volatile components in asphalt. The temperature-controllable asphalt emission detection and collection system developed by the application can realize sampling of gaseous volatile components in the whole life cycle of typical asphalt materials, and simultaneously uses a gas detector to detect and analyze TVOC, SO2, CO and other gaseous inorganic pollutants, thereby enhancing the completeness of asphalt emission detection. Based on the scheme, the sample can be quickly collected for subsequent analysis and use, and the application has small occupied area and is convenient to maintain.

The application belongs to the technical field of artificial wetlands, and more particularly relates to an iron-based nanoscale enzyme@zeolite composite filler as well as a preparation method and application thereof. The application is characterized in that: the iron-based nanoscale enzyme with peroxidase-like activity is loaded on natural zeolite, a hydrothermal reaction is carried out after urea is used to adjust pH, a magnetic iron-based nanoscale enzyme@zeolite composite filler is obtained through filtration and washing, and finally, the iron-based nanoscale enzyme@zeolite composite filler is obtained through plasma treatment. The composite filler exhibits broad-spectrum adsorption and catalytic degradation capacity for organic and part of inorganic pollutants in water, and still has high catalytic activity under low-temperature conditions, thereby overcoming the problem that traditional enzyme preparations are sensitive to environmental temperature.

This utility model discloses an ozone advanced oxidation deep wastewater treatment device, belonging to the field of papermaking wastewater treatment technology. It includes an ozone reaction tower, a secondary sedimentation tank, an intermediate tank, a high-speed dissolved air device, and an ozone catalytic packing layer. The high-speed dissolved air device is equipped with a hydrogen peroxide inlet for introducing hydrogen peroxide and an ozone input pipe for introducing ozone. The ozone catalytic packing layer is disposed inside the ozone reaction tower. A mixing and releasing device is installed between the high-speed dissolved air device and the ozone input pipe. The high-speed dissolved air device is disposed inside the ozone reaction tower and is equipped with a wastewater transport pipe. This utility model provides an ozone advanced oxidation deep wastewater treatment device that can achieve non-selective and thorough removal of various organic and inorganic pollutants, while also removing nitrite, suspended solids, and performing decolorization, deodorization, sterilization, and disinfection.

This invention discloses a biofilm cleaning system and method, including an installation box assembly, a shielding component, a cleaning component, an equipment box assembly, a moving component, and a lifting component. The installation box assembly is used to arrange the biofilm in compartments. The cleaning component includes sequentially arranged rinsing, oxidative cleaning, acid washing, rinsing, and drying units. The moving component drives the lifting component to transfer the biofilm. The cleaning method includes: opening the shielding component to expose the biofilm; grabbing and transferring the biofilm using the moving and lifting components; continuously cleaning and drying it through each cleaning unit; and then resetting the biofilm. This invention achieves simultaneous removal of organic and inorganic pollutants, thorough cleaning without reagent residue, high automation, accelerated biofilm recovery, reduced system downtime, stable structure, and convenient maintenance. It is suitable for cleaning various types of biofilms in wastewater treatment.

This utility model belongs to the field of farmland water conservancy and sewage treatment technology, specifically disclosing an ecological filter dam, including a filter dam base plate and partition walls and retaining walls set above the filter dam base plate. Several partition walls and retaining walls are provided, arranged in a rectangular array. A wing wall is fixed to the outermost partition wall. Two retaining walls are symmetrically fixed between two adjacent partition walls, forming a filling trough. A filter grid is fixed to the inner side of the retaining wall. The filling trough is filled with filter media. A top beam is fixed to the outer side of the filling trough. A cover plate is set above the filling trough and fixed to the top beam. The retaining walls and filter grid are used to filter large particulate impurities, and the filter media are used to adsorb, capture, and retain organic and inorganic pollutants. This utility model uses physical interception of filter grids and chemical adsorption through filter media to achieve multiple purification, significantly improving water quality. The rectangular array arrangement of the partition walls and retaining walls enhances the overall impact resistance and adapts to different hydraulic loads.

This utility model relates to the field of high-salinity wastewater treatment technology, specifically a high-salinity wastewater treatment system. The system includes an adsorption tank and a regeneration furnace. A discharge trough, a first screw conveyor, and a second screw conveyor are provided between the adsorption tank and the regeneration furnace. The adsorption tank is filled with a modified porous inorganic filler adsorbent to adsorb ammonia nitrogen from the raw water, reducing the chemical oxygen demand (COD). The regeneration furnace regenerates the modified porous inorganic filler adsorbent. By combining the adsorption tank and the regeneration furnace, this utility model not only utilizes the excellent adsorption performance of the modified porous inorganic filler adsorbent to efficiently remove ammonia nitrogen from high-salinity wastewater, but also allows the adsorbent, after adsorbing inorganic pollutants, to be transported to the regeneration furnace for regeneration. After regeneration, the adsorbent is then reintroduced into the adsorption tank to continue the adsorption process, forming a dynamic cycle for more efficient and lower-cost treatment of ammonia nitrogen in high-salinity wastewater.