Introduction of reverse osmosis treatment equipment for water treatment equipment
RO (Reverse Osmosis) equipment is the separation and filtration technology using differential pressure as the driving force of the film, the small aperture nanometer level, under pressure, H2O molecules can pass through the RO film, and the water source of inorganic salt and heavy metal ions, organic matter, colloids, bacteria, viruses and other impurities cannot penetrate the RO film, so that can be separated by water and concentrated water cannot penetrate the strict region
Two, product pictures
Three, the characteristics of product technology:
1, the desalination rate of reverse osmosis equipment is high, the desalination rate of single membrane can reach 99%, and the rate of desalination of single stage reverse osmosis system is generally stable in more than 90%, and the desalination rate of double stage reverse osmosis system is generally stable at more than 98%.
2, because the reverse osmosis can effectively remove bacteria, viruses, organic matter, as well as metal elements and other inorganic substances, water quality is much better than other methods.
3, reverse osmosis pure water operation cost and labor cost is low, reduce environmental pollution.
4, slow down the water quality change caused by the fluctuation of water quality, which is conducive to the stability of water quality in production, which plays an important role in the stability of the quality of pure water products.
Four, RO reverse osmosis equipment operation of the main parameters of the control
1, after the clarification of raw water turbidity is less than 1 mg/L
2, the import of softener NaHSO3 solution is added to maintain the ORP value in the 70 to 130 range, to remove water excessive residual chlorine, the residual chlorine is less than 0.1 mg/L, and kill the microorganisms in the water, the protection of RO equipment, reverse osmosis membrane.
3, precision filter effluent turbidity value is less than 0.2mg/l.
4, in the actual operation, the best pH value of 6.5 ~ 7.5.
5, the temperature of the water permeability of RO has a more obvious effect, the water temperature increased by 1 degrees C, water permeability increased by 2.7%, but the operating temperature can not exceed 35 degrees C.
6, the greater the operating pressure, the greater the amount of water (within the license), the operating pressure is generally controlled in the range of 1.3 to 1.4 MPa.
Five, RO reverse osmosis equipment operation and matters needing attention
The operation of RO equipment includes 4 steps: pre washing, flushing, running, and post flushing:
1, the purpose of pre washing is to fill the water inside the RO, remove the air film.
2, "flushing" is the continuation of the pre rinse. Within 45 s, the quality of the effluent of the RO is automatically put into operation after reaching the requirements. If the requirements are not reached within 45 s, or the flow rate is less than the minimum setting value, the RO will automatically turn into the "after operation flushing" stage.
3, "running" is the continuation of flushing. At this stage, the operator should be based on pressure, 75% recovery rate and flow to adjust the RO into the water gate and concentrated brine outlet valve opening.
4, "running after washing" is the purpose of RO when the equipment stops running, the low pressure flush water reverse osmosis membrane in the membrane and remove residual salt water until the brine and water side inlet side of the same date. Time is preset, usually about 10 min