oday, we mainly look at how to solve the scaling problem of concentrated water of primary reverse osmosis equipment? There are many methods to solve the scaling problem of the concentrated water of the primary reverse osmosis equipment, depending on the water quality. The general methods are as follows:
1. Properly control the PH of the whole system to make it acidic, which can effectively prevent scaling, especially calcium carbonate and magnesium sulfate... But the disadvantage of this method is that it will produce carbon dioxide, which cannot be removed in the system pilot test, and will corrode the equipment. If the PH is controlled at about 8.2, it can be converted into carbonic acid and then removed, but pay attention to precipitation, and you should control the balance yourself.
2. Add detergent. The role of scale remover is to form a film on the surface of crystals and colloids, so that they can not be combined, but only delay. When the ion concentration reaches a certain level, scaling and precipitation will occur, so the recovery rate of good gas should be controlled. The addition of less scaling agent will not work, and the addition of more scaling agent will also form sediment. Therefore, the amount should be well controlled and careful selection should be made. Different scaling agents have different precipitation targets, so the selection should be targeted.
3. Add flocculant. PAC PAM is a good choice. I usually cross use it, but the amount should be calculated according to the reaction equation. Don't add more, because it is also a pollution. The formed sediment is removed by filtration.
The small group of the first stage reverse osmosis equipment summarized the above problems of treating concentrated water scaling, and these methods can be used together. You are welcome to inquire on Renyu Machinery's official website or call: 18118113112 13773235578
