Ultrafiltration and ultrapure water production equipment

Quartz sand filterIt is a common fast filtration equipment that uses quartz sand filter material to remove suspended solids from raw water. When water containing suspended particles flows through the filter layer, the gaps in the filter material screen and filter the suspended particles, making them easy to adsorb on the surface of the filter material. When a certain amount of dirt is trapped on the surface of the filter material to form a filter membrane, the pressure difference before and after the filter will quickly increase over time until it fails. At this point, it is necessary to use reverse water flow to backwash the filter materialfilterThe internal quartz sand is suspended and loosened, causing the trapped substances adhering to the surface of quartz sand and anthracite to peel off and be carried away by water flow, restoring the filtering function. Design flow rate15m/hBackwash strength15～18L/ m2.sThe effluent is filtered through a quartz sand filterNTU＜1After prolonged use, the wear and tear of quartz sand decreases5-7Replace once a year. Backwash drainage is connected to the water storage tank.

Activated carbon filterThe work is completed through a charcoal bed. The activated carbon particles that make up the carbon bed have many micropores and a huge specific surface area, and have strong physical adsorption capacity. Water passes through a charcoal bed, and organic pollutants in the water are effectively adsorbed by activated carbon. In addition, there are some oxygen-containing pipe clusters on the non crystalline part of the surface of activated carbon, which effectively adsorb organic pollutants in the water passing through the carbon bed by activated carbon. Using activated carbon to remove low molecular weight organic matter, free chlorine, odorous substances, and heavy metal ions from water. Design flow rate15m/hBackwash strength10L/ m2.s.1Replace the activated carbon filter material around the year.

precision filterThe function is to intercept incoming data from the previous system that is greater than5μmTo prevent large particles from entering the reverse osmosis membrane. After being accelerated by a high-pressure pump, these particles may penetrate the first stage reverse osmosis membrane components, causing a large amount of salt leakage and scratching the impeller of the high-pressure pump.filterThe filter element in the middle is a replaceable cartridge filter rod. When the pressure difference between the inlet and outlet of the filter is greater than the set value (usually0.07～0.1Mpa）It should be replaced. When installing the filter element, it should be aligned vertically, otherwise it will damage the filter element and, more seriously, lose its filtering function

Fully automatic water softenerAdopting the United StatesFleck5600Program controlled valve automatic control, regeneration cycle is12～24hourFleck5600The control valve adopts a time mode to start regeneration, with accurate measurement. The workstation consists of six steps: operation, backwashing, regeneration, slow washing, fast washing, and salt tank water injection. The conversion of power position is automatically recorded by the time controller in the automatic control valve. When the processed water volume reaches the pre-set value of the program, the controller sends a command signal to the driving motor, and the motor rotates to drive the multifunctional valve core to rotate, changing the flow direction of inlet and outlet water, thus achieving automatic control. Regenerated salt solution is sucked in by negative pressure through a water sprayer, without the need for a salt pump. Daily maintenance only requires adding salt to the salt tank. The function of a softener is to remove waterCa2+TheMg2+to preventCaCO3andCaSO4Sedimentation occurs on the concentrated water side of the membrane, forming scale and blocking the channels of the concentrated water membrane, which affectsreverse osmosisThe amount and quality of water produced.