4results about How to "Effective Pollution Control" patented technology

The invention relates to the field of food processing, and discloses a fresh-keeping processing method of green bamboo shoots, which comprises the following steps: S1, cleaning collected green bamboo shoots: firstly, manually cleaning impurities on the surfaces of the bamboo shoots, and then carrying out secondary cleaning by using a sodium hypochlorite solution with the concentration of 0.02-0.05%; s2, grading and classifying the cleaned green bamboo shoots according to the appearance color and the tenderness degree; s3, the bamboo shoots are properly aired, ultraviolet rays are used for disinfecting the operation environment, 75% ethyl alcohol is used for spraying treatment on the operation contact surface, and a disinfected cutter is used for removing pollution wounds of the green bamboo shoots. Through manual cleaning and secondary cleaning of the bamboo shoots with a 0.02-0.05% sodium hypochlorite solution, ultraviolet sterilization and disinfection of operation surfaces and tools with 75% ethanol are combined, microorganisms and impurities are effectively removed, the risk of wound pollution is reduced, the wound is soaked with a fresh-keeping solution and packaged with a double-layer paper bag, the fresh-keeping effect is enhanced, the moisture loss of the bamboo shoots is reduced, and the quality of the bamboo shoots is improved. And a plurality of defects of the traditional method are improved.

This utility model discloses a catalyst collection and conveying device at the bottom of the riser pipe of a catalytic cracking unit, belonging to the field of petrochemical technology. It includes a frame platform with a first riser pipe and a second riser pipe mounted on it. A collection hopper is fixedly connected to the bottom of both the first and second riser pipes. In this utility model, fallen catalyst dust is collected by the collection hoppers at the bottom of the first and second riser pipes. The collected catalyst dust is then driven to the inner cavity of a storage tank via a blower, a first electrically controlled valve, an exhaust pipe, a second electrically controlled valve, an upper guide pipe, and a lower guide pipe. The collection hoppers and closed conveying pipes prevent catalyst powder from floating around due to wind during discharge, effectively controlling dust pollution in the unit area, improving the working environment, and protecting equipment and personnel health.

The invention belongs to the field of sewage treatment, and specifically discloses a continuous advanced oxidation device and process, comprising a raw water storage tank, a loading and unloading mechanism, a catalytic oxidation zone, a flocculation zone, a sedimentation zone, a sludge scraping zone and a recycling and regeneration mechanism; the loading and unloading mechanism is used for introducing raw water and discharging clear liquid; the catalytic oxidation zone is used for catalytic oxidation of raw water; the flocculation zone is used for flocculation of catalyst; the sedimentation zone is used for precipitation of flocs; the sludge scraping zone is used for scraping off precipitated flocs; the recycling and regeneration mechanism is used for recycling and regenerating the catalyst for reuse; the invention realizes the continuous non-radical activation ability of persulfate by catalytic oxidation based on persulfate, and designs a persulfate non-radical oxidation-flocculation precipitation coupling process technology in combination with the flocculation precipitation process, which can effectively reduce the concentration of new pollutants such as endocrine disruptors and antibiotics in raw water.

This utility model discloses a lead-antimony slag recovery and antimony treatment system, comprising: a crushing device, a medium-frequency heating furnace, an ingot casting machine, a dust collection device, and a water cooler; the crushing device is located on the left side of the system and is connected to the feed inlet of the medium-frequency heating furnace via a belt conveyor, which is also equipped with a batching and metering device; a dust collection device is also located above the medium-frequency heating furnace; a water cooler is located on the right side of the medium-frequency heating furnace, and the water cooler is connected to the inlet and outlet water pipes of the medium-frequency heating furnace via pipelines; a system control device for controlling the medium-frequency heating furnace is located behind the medium-frequency heating furnace; an ingot casting machine is located in front of the medium-frequency heating furnace, which is used to receive the antimony liquid flowing out of the medium-frequency heating furnace. This utility model's lead-antimony slag recovery and antimony treatment system has a good antimony capture effect, with an antimony recovery rate of over 99%, and good economic benefits; the system has a compact structure, simple operation, fast processing, short process flow, and high degree of automation; it causes no environmental pollution, has low cost, and requires little investment.