The carbon filter pressure vessel is a pressure vessel filled with a thick quartz sand cushion and high quality activated carbon. Function: In the water quality pretreatment system, the activated carbon filter can absorb the residual chlorine that can not be removed in the pre-stage filtration to prevent the reverse osmosis membrane from being oxidatively degraded, and also adsorb the pollutants such as small molecules and organic substances leaking from the previous stage. It has obvious adsorption and removal effects on water odor, colloid and pigment, heavy metal ions and COD. The SDI value of the RO influent can be further reduced to ensure SDI < 5 and TOC < 2. Oppm. The work of the activated carbon filter is done through a carbon bed. The activated carbon particles constituting the carbon bed have a large number of micropores and a large specific surface area, and have a strong physical adsorption capacity. The water passes through the carbon bed, and the organic pollutants in the water are effectively adsorbed by the activated carbon. In addition, some non-crystalline part of the activated carbon surface has some oxygen-containing tube energy groups, so that the organic pollutants in the water passing through the carbon bed are effectively adsorbed by the activated carbon. Activated carbon filter is a commonly used water treatment equipment. As a pretreatment of water treatment desalination system, it can effectively guarantee the service life of the latter equipment, improve the quality of the effluent water, prevent pollution, especially prevent the reverse osmosis membrane, ion exchange resin, etc. Free state residual oxygen poisoning. The main factors affecting the adsorption effect and service life of the activated carbon filter are: the type and concentration of the pollutant, the residence time of the gas flow in the filter material, the temperature and humidity of the air. In actual selection, the filter form and activated carbon type should be determined according to the type of pollutant, concentration and treatment air volume. Both the upstream and downstream of the activated carbon filter should have a good dust filter, and the efficiency specification should not be lower than F7. The upstream filter prevents dust from clogging the activated carbon material; the downstream filter blocks the dust from the activated carbon itself. The active sand filter is a continuous filtration device based on the principle of counterflow, which integrates coagulation, clarification and filtration. The influent water enters the treatment system through the water distribution pipe at the bottom of the equipment, and is filtered by the sand bed and overflows from the top outlet. The impurities trapped by the sand bed during filtration are aerodynamically transported to the sand washer at the top of the canister. The mechanical friction and turbulence act to separate the pollutants from the surface of the sand filter. The impurities are discharged with the sand washing water, and the sand is returned by its own weight. Sand bed. Features: 1. High efficiency: 24 hours continuous operation, no need to stop backwashing. 2, low operating costs: no need for high lift and large flow backwash pump. 3. Low maintenance cost: It has no rotating parts except quartz sand filter material during operation, low failure rate and low maintenance cost. 4, one-time investment is low: no need to set up a separate coagulation tank, clarification tank and other facilities, no need for backwashing pumps and electric, pneumatic valves and other equipment, small amount of engineering, one-time investment. 5, the head loss is small: a single filter material and the filter material is clean and timely, the head loss is small, the total head loss is ≤ 0.5m. 6, the water quality requirements for loose: long-term can withstand the clean shed 150mg / L concentration SS water quality, short-term 300mg / L concentration SS impact and the effluent water quality unchanged. 7. The effluent water quality is stable and the filtration effect is good. The filter material is cleaned in time to ensure high quality and stable water output, and there is no periodic water quality fluctuation. 8. Easy to rebuild and expand: The unit operation mode can be flexibly increased or deleted according to the change of water volume, which is easy to be expanded and expanded. 9. Small footprint and beautiful appearance: It integrates the traditional three-stage reclaimed water treatment process, saving about 70-80% of land; the appearance is more beautiful and compact. The size of the leather Sleeper is small which takes less space and easy to move. You can have a leather sleeper at your office which is more comfortable for lunch break. And you can use it as a sofa at office time. The leather sleepler sofa is also easy to intall. There are different types of leather sleeper, you can choose the leather sleeper suitable for you. Leather Sleeper,Elegant Sleeper Lounger,Living Room Leather Sofas,Leather Sectional Sofa Loveseats Kaifeng Lanwei Smart Home Co., Ltd , https://www.sofawickles.com
March 31, 2023