Reverse osmosis water purification equipment

Reverse osmosis is a membrane separation technology that uses pressure as the driving force and the mechanical energy of selectively permeable (semi-permeable) membranes. When the pressure applied in the system is greater than the osmotic pressure of the feed water solution, water molecules continuously pass through the membrane, flow through the product water channel into the pipe, and then flow out from one end. Impurities in the water, such as ions, organic matter, viruses, etc., are retained on the feed water side of the membrane. Then it flows out from the concentrated water outlet end, thereby achieving the purpose of separation and purification.

I. Main Process Flow Description of Reverse Osmosis Pure Water Equipment

1The raw water tank (optional) reverse osmosis equipment process diagram stores raw water and is used to settle large sand particles and other sedimentable substances in the water. At the same time, it buffers the impact of unstable water pressure in the raw water pipe on the water treatment system. (Such as the response of pressure sensors caused by too low or too high water pressure).

2Raw water pump  Constant system water supply pressure and stable water supply volume.

3Multi-media filter  The filter with multiple filtration layers is mainly designed to remove particles such as sand, rust, colloidal substances and suspended matter contained in the raw water20umThe above-mentioned substances can be controlled by manual valves or fully automatic controllers for a series of operations such as backwashing and forward washing. Ensure the quality of water produced by the equipment and extend its service life.

4Activated carbon filter  The system adopts shell activated carbon filters. Activated carbon can not only adsorb electrolyte ions but also perform ion exchange adsorption. Adsorption by activated carbon can also increase the oxygen consumption of potassium permanganateCOD"By"15mg/L(O2)drop2～7mg/L(O2)In addition, due to the adsorption effect, the concentration of adsorbed replication on the surface increases, thus also playing a catalytic role, removing pigments, odors, a large amount of biochemical organic matter in water, reducing the residual chlorine value and pollutants in water, and removing trihalides in water.THMAnd other pollutants. Manual valves or fully automatic controllers can be selected to control backwashing, forward washing and a series of other operations. Ensure the quality of water produced by the equipment and extend its service life. Meanwhile, the equipment is equipped with a self-maintenance system and has very low operating costs.

5Ion softening system/Dosing systemR/OThe device is designed to dissolve solid substances for concentrated discharge and the utilization of fresh water, and to prevent the concentrated water end, especiallyROA concentrated water side of a membrane module appears behind the deviceCaCO3,MgCO3,MgSO4,CaSO4,BaSO4, SrSO4, SiSO4The concentration product is greater than its equilibrium solubility constant and crystallizes out,Damage the inherent characteristics of the membrane element,Before entering the reverse osmosis membrane module,Ion softening devices should be used or an appropriate amount of scale inhibitor should be added to prevent carbonates, SiO2,The crystallization of sulfate.

6Precision filter  The precision filter is adopted to remove the residual suspended solids, non-straight particles and colloids and other substances in the influent water, so as toROThe subsequent equipment such as the system operates more and more reliably. The filter element is5umThe purpose of melt-blown filter elements is to remove the excess that is missed by the upper-level filtration unit5umThe removal of impurities. Prevent it from entering the reverse osmosis device and damaging the membrane surface, thereby compromising the membrane's desalination performance.

7Reverse osmosis system  The reverse osmosis device uses sufficient pressure to make the solvent (usually water) in the solution pass through the reverse osmosis membrane (or semi-permeable membrane) and separate it out. Because this process is opposite to the direction of natural osmosis, it is called reverse osmosis. Reverse osmosis can adapt to various types of raw water with different salt contents, especially in water treatment projects with high salt content, it can achieve excellent technical and economic benefits. Reverse osmosis has a higher desalination rate, higher recovery rate, stable operation, small floor space, and simple operation. While removing salt, reverse osmosis equipment also removes most colloids and large-molecular-weight organic substances.

8Ozone generator/Ultraviolet device (optional) kills the water caused by secondary pollution thoroughly to ensure the hygiene standards of the finished water.

Ii. Main Uses of Reverse Osmosis Equipment

1It is used in the production of electronic industry products such as picture tube glass shells, picture tubes, liquid crystal displays, circuit boards, computer hard disks, and integrated circuits?Pure water and high-purity water required for processes such as chips and monocrystalline silicon semiconductors;

2It is used to produce softened water and desalinated pure water for the feed water of thermal power generation boilers, medium and low pressure boilers in factories and mines.

3It is used to produce pure water for large-volume medical parenterals, injections, pharmaceuticals, biochemical products, medical sterile water and pure water for artificial kidney dialysis, etc., which are required by the pharmaceutical industry.

4It is used for the production of drinking purified water, distilled water, mineral water for the beverage (including alcoholic beverages) industry, brewing water for alcoholic beverages and pure water for blending.

5The production of domestic water and drinking water from seawater and brackish water;

6Prepare deionized water for electroplating processes; Pure water for battery (storage battery) production process; Water for surface coating and cleaning of automobiles, household appliances and building materials products; Pure water for coated glass Hardening and desalination water required for textile printing and dyeing processes;

7Petrochemical industry, such as cooling water for chemical reactions; Process pure for the manufacturing of chemical agents, fertilizers and fine chemicals, and cosmetics?Water;

8A good water supply network system for hotels, buildings, communities, airports, real estate properties and swimming pool water quality purification;

9Wastewater treatment and reuse in circuit boards, electroplating, and the electronics industry; Process diagram of reverse osmosis equipment(Click to view the large image)

10The treatment of wastewater from domestic life, hospitals, leather tanning, dyeing and printing, papermaking industries, and leachate from garbage.

Iii. Reverse Osmosis Pure Water Equipment

1Technical Description: Reverse Osmosis (abbreviated as.ROIt is a type of membrane separation technology, which works by relying on the characteristic of reverse osmosis membranes to separate solvents and solutes in solutions under pressure.

Osmosis is a physical phenomenon. Reverse osmosis involves applying a greater pressure than natural osmosis to water containing salt and various fine impurities (i.e., raw water), causing water to reverse osmosis from the side with higher concentration to the side with lower concentration. The vast majority of impurities, organic matter, heavy metals, and other harmful substances in the raw water are discharged through the sewage outlet.

2Characteristics and application scope of reverse osmosis equipment:

·It has a high desalination rate and can simultaneously remove other organic substances, and the effluent quality meets the national standardsGBI7323－1998"Standard;

·The main components of the reverse osmosis equipment adopt imported composite membrane elements from the United States and imported high-pressure stainless steel pumps. Compared with other reverse osmosis elements, it has advantages in terms of feed water adaptability, desalination rate and service life.

·Design pressure1.05~1.6MpaDesalination rate96~99%;

·It features a high degree of automation, stable operation, low failure rate and low operating costs.

·Applicable to water for wine blending, water for canned product processing, bottled and barreled drinking water, and water for various beverages.

·It is applicable to the preparation of water in industries such as electronics, chemical engineering, power, and pharmaceuticals.

·It is suitable for the treatment of high-purity water.