The main components of water treatment equipment are:

1. Raw water tank: it plays a buffering role in the supply of raw water and coordinates the supply of raw water with the input of raw water pump

2. Raw water pump: it provides enough pressure and water for water points.

3. Quartz sand filter: The raw water can be filtered by multi-layer mechanical filter of quartz sand filter, which can remove mud, rust, large particles and suspended solids in the raw water, and can remove insoluble impurities, colloids, free Cl, peculiar smell, chroma, some iron and manganese, and organic substances in the adsorbed water, thus reducing the SDI value of the water.

4. activated carbon filter: after the raw water is treated by quartz sand filter, most of the visible objects have been removed, and then the colloid, free Cl, odor, chromaticity, part of iron and manganese, and organic substances in the adsorbed water are removed by activated carbon filter, which belongs to adsorption filtration mode.

5. Softening tank:

In order to achieve a higher recovery rate and prevent chemical scaling of carbonate, sulfate and Ca2+ and Mg2+ ions at the concentrated water end of reverse osmosis, especially at the concentrated water end of the last membrane element in reverse osmosis pressure vessel, thus affecting the performance of membrane elements, the softening device can completely remove the hardness of calcium and magnesium ions in water and protect the reverse osmosis membrane, so as to prevent scaling on the surface of RO membrane and ensure the safe and stable operation of the system.

6. High-pressure pump: In order to overcome the osmotic pressure of RO membrane, external pressure is needed for RO membrane to work normally, which is provided by high-pressure pump.

working principle of water treatment equipment

RO- reverse osmosis pretreatment process mainly includes activated carbon and fine filtration. Permeation is a natural phenomenon: water passes through the semi-permeable membrane, from the side with low solute concentration to the side with high solute concentration, until the chemical potential of the solvent reaches equilibrium. At equilibrium, the pressure difference between the two sides of the membrane is equal to the osmotic pressure. This is the Osmosis phenomenon.

reverse osmosis means that if pressure is applied to the high concentration side, the above-mentioned osmotic effect can be stopped and reversed, so that the water can be forced from the high concentration side to the low concentration side, and the water can be purified. This phenomenon is called reverse osmosis (reverse osmosis), and this semi-permeable membrane is called reverse osmosis membrane.