Common problems of Reverse Osmosis Plant

1) How to design the Multi-media filter? What is the principle?

The design of the filter is based on the total inlet water flow of the system. According to the ratio of the recovery rate of the reverse osmosis plant and product water flow of the system, to calculate the total inlet water flow.

The filter material in the filter is composed of quartz sands of different particle sizes arranged in order from large to small, thus forming a good quartz sand gradation.

When the first time to use the system, the filtering effect is often not very good, because the filter does not form a "bridge" at the beginning. The suspended solids with the same particle size will then intercept the suspended solids with smaller particle sizes, forming an inverse particle size filtration process that first intercepts large particles and then intercepts small particles.

2) How to design the Cartridge filter? How many types of filters be used?

The design of the cartridge filter is based on the total inlet water flow, the types of filter elements generally include polypropylene filter elements, honeycomb filter elements, spray-melt filter elements, pleated filter elements, etc.

3) How to deal with excess iron and manganese in water?

The iron in groundwater is generally ferrous ferrous, so ferrous ferrous must be oxidized to ferric iron first. The oxidation process can be completed by aeration. The aeration device can make the water be fully contacted with oxygen to produce natural oxidation ;The aerated water then can go through the iron and manganese removal filter. If most of the iron in the water is trivalent iron, it does not need to be aerated and directly enters the iron and manganese removal filter for removal.

4) How many ways are there for filter corrosion protection?

There are various anti-corrosion methods such as rubber lining, epoxy, plastic lining, and enamel.

5) How to design the Pump? What is the principle?

First, the design of the pump is based on the total inlet water flow of the system. According to the ratio of the recovery rate of the reverse osmosis plant and product water flow of the system, to calculate the total inlet water flow. Secondly, design the pump head to meet inlet pressure requirement of the system. Then select the material of pump which suit the source water quality. Finally further consider the power consumption of pump to save the operation energy consumption of the system.

6)What are the factors that affect the performance of UV sterilizers?

Flow rate: In the same sterilizer, when the radiation energy of ultraviolet rays is constant and the bacterial content in the water does not change much, the flow rate of water passing through the sterilizer has a significant impact on the sterilization effect.

The physical and chemical properties of water: the color, turbidity and total iron content of water have different degrees of absorption of ultraviolet rays, and as a result, the effect of sterilization is reduced.

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