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18t/h EDI high-purity water production equipment
1、 Overview of 18t/hedi high-purity water production equipment: Reverse osmosis (RO) technology, which is mainly used in traditional ultrapure water p
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118t/h ediOverview of high-purity water production equipment:
The reverse osmosis (RO) technology, which is mainly used in the traditional process of producing ultrapure water, is a method of using membrane separation to remove ions from water, althoughcounter-infiltration systemRemoving 95% -98% of ions from water, but it still cannot meet the requirements of industrial production. The subsequent process uses ion exchange equipment. In recent decades, mixed bed ion exchange technology has been the standard process for pure water preparationPure water equipmentThe commonly used standard process, due to the need for periodic regeneration of deionized water during operation and the use of a large amount of chemicals (acid-base) and pure water during the regeneration process, is no longer sufficient for acid-base free pure water systems.EDI high-purity water production equipmentThe system is a new type of desalination technology that combines electrodialysis technology and ion exchange technology. It can effectively remove all ions from water, and the effluent resistivity can be stabilized at 15M Ω CM or above, with continuous operation, no chemical pollution, and high water utilization rate, has broad application prospects in high-purity water preparation processes.
II18t/h ediRequirements for inlet water quality of high-purity water production equipment:
TEA (including CO2)<25mg/Las (CaCO3)
PH 5 - 9
Hardness<0.1 mg/Las (CaCO3)
Silicon<0.5mg/L
T OC <0.5 mg/L
Residual chlorine<0.05mg/L
Fe ， Mn ， H2S <0.01 mg/L
Inlet pressure 30-100PSI
IIIediThe high-purity water production equipment has undergone nearly a decade of development in the water treatment industry, and its technology is also very mature. So, let's introduce it belowEDIHistory of Technological Development:
Stage 1: Preprocessing ->Yang Bed ->Yin Bed ->Mixed Bed
Phase 2: Pre treatment ->Reverse osmosis ->Mixed bed
Three stages: pre-processing ->reverse osmosis ->EDI device
EDI high-purity water production equipment is applied in reverse osmosis systems to replace traditional mixed ion exchange technology (MB-DI) in producing stable deionized water. For example, the water resistance of the produced water is required to be below 10 megaohms. Currently, there are also many processes that combine single-stage reverse osmosis with EDI. However, if you want to produce more stable water quantity and quality, it is recommended to use a combination of single-stage reverse osmosis and EDISecondary reverse osmosisEDI preparation, EDI high-purity water production equipment technology andMixed ion exchangeCompared to technology, there are the following advantages:
① EDI high-purity water production equipment ensures stable effluent quality
② EDI high-purity water production equipment is easy to achieve fully automatic control
③ EDI high-purity water production equipment will not shut down due to regeneration
④ EDI high-purity water production equipment does not require chemical regeneration
⑤ EDI high-purity water production equipment has low operating costs
⑥ EDI high-purity water production equipment has a small factory area
⑦ EDI high-purity water production equipment has no wastewater discharge.
Related searches:General process of deionized pure water equipment The three main processes of EDI device operation Why is high-purity water only used for industrial purposes and not for drinking water
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