What is the reason for the high ph value of biochemical water treatment hypoxia pool? The operation precautions of reverse osmosis device are as follows: (1) the hydrolysis of cellulose acetate membrane is easy to cause the performance of reverse osmosis device to deteriorate. For this reason, the pH value of water must be strictly controlled, and the pH value of water supply must be maintained at 5-6, and the composite film can be PH3-Run under the PH11 range.(2) when the amount of secondary sodium injection is insufficient and the free chlorine in the water supply cannot be measured, there will be sticky mud on the membrane assembly of the reverse osmosis device, and the pressure difference of the reverse osmosis device will increase.However, for composite films and polyamide films, the amount of free chlorine entering the membrane assembly must be strictly controlled, and exceeding the specified value will lead to oxidation and decomposition of the membrane.(3) if the water with the F1 value exceeding the
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What is the role of installing the front filter? The front filter is coarse filtration, which can filter out the thicker impurities in the tap water pipe and prolong the service life of the water purifier filter element and water valve. 1. installing the front-end filter of the water purifier is mainly to protect the filter element of the water purifier, share the pressure of the filter element of the water purifier, and let the filter element have more space to filter out other impurities. 2. the function of the front filter: it is mainly to filter out some impurities of large particles, such as rust, sediment, red worms and gels, in addition to protecting the filter element of the water purifier behind it, the front filter can also protect the water pipe behind to extend the service life of the water pipe; protect water appliances to prevent rust and sediment from reducing the life of household appliances; protect the shower and faucet to prevent blockage. 3. the disadvantage of the front filter is that the
