Water quality indicators and recommended industries for industrial pure water and ultrapure water equipment


Time of issue:2019-12-05

【 Summary Description 】Water quality indicators and recommended industries for industrial pure water and ultrapure water equipment

Industrial pure water and ultrapure water equipment :

I. Water quality indicators of pure water and ultrapure water and recommended industries:

Water Quality Indicators

Recommended Industries

Conductivity ≤10μS/CM

Animal drinking water ( Pharmaceutical ) General chemical raw material mixing water, food industry mixing water

Deionized water for rinsing in general electroplating industry, desalinated pure water for textile printing and dyeing, pure water for polyester chips, fine chemical water, pure drinking water for civil use, and other water with the same water quality requirements .

Conductivity ≤4μS/CM

Water for the production of electroplating chemicals, water for the production of surfactants in the chemical industry, medical purified water,

Pure water for liquor production, pure water for beer production, pure drinking water for civil use, pure water for general cosmetics production, pure water for hemodialysis machines, and other water with the same water quality requirements .

Resistivity 5~10MΩ.CM

Water for lithium battery production, water for storage battery production, water for cosmetics production, pure water for power plant boilers, water for chemical plant mixing, and other water with the same water quality requirements .

Resistivity :10~15MΩ.CM

Animal laboratory water, rinsing water for glass shell coating, pure water for electroplating, water for coated glass, and other water with the same water quality requirements .

Resistivity ≥15 MΩ.CM

Sterile water for pharmaceutical production, oral liquid water, deionized water for high-grade cosmetics production, coating water for the electronics industry, cleaning water for optical materials, pure water for the electronic ceramics industry, pure water for high-end magnetic materials, and other water with the same water quality requirements .

Resistivity ≥17 MΩ.CM

Softened water for magnetic material boilers, water for sensitive new materials, water for semiconductor material production, water for high-end metal materials, water for anti-aging material laboratories, non-ferrous metals, precious metal smelting water, water for nano-scale new material production, water for aerospace new material production, water for solar cell production, water for crystal chip production, water for ultra-pure chemical reagent production, high-purity water for laboratories, and other water with the same water quality requirements .

Resistivity ≥18 MΩ.CM

ITO Water for conductive glass manufacturing, water for laboratories, water for the production of electronic-grade dust-free cloths, and other water with the same water quality requirements

II. Methods for producing pure water: (effluent conductivity ≤10μS/CM )
     1 Pre-treatment ——> Cation bed ——> Anion bed (full ion exchange method) II. Methods for producing pure water: (effluent conductivity ≤10μS/CM )  

     2 Pre-treatment ——>RO Reverse osmosis (reverse osmosis method)

III. Industrial ultrapure water manufacturing process: ( Effluent resistivity 5~18.2MΩ.CM)
   1 Pre-treatment ——> Cation bed ——> Anion bed ——> Mixed bed (full ion exchange method)
   2 Pre-treatment ——> Reverse osmosis ——> Mixed bed         (Reverse osmosis + Mixed bed method)
   3 Pre-treatment ——> Reverse osmosis ——>EDI          (Reverse osmosis +EDI method)

IV. Pure water equipment description

In order to meet user needs, achieve standard water quality, minimize pollution at each level, extend the service life of the equipment, and reduce the maintenance workload of operators . In the process design, water that meets the national tap water standard is used as the source water, and there are also pretreatment systems such as media filters, activated carbon filters, sodium ion softeners, and precision filters, RO Reverse osmosis main system, ion exchange mixed bed ( EDI Electrodeionization system) system, etc.
       The water tanks in the system are all equipped with level control systems, the pumps are all equipped with pressure protection devices, online water quality detection and control instruments, and the electrical system uses PLC Programmable logic controller, truly achieving unattended operation. At the same time, the selection of materials in the process adopts a method that unifies recommendations and customer requirements, so that the equipment has higher cost performance and reliability compared with other similar products.

Implementation standards: Strictly implement the current various water treatment standards (drinking water standards, laboratory water standards, electronic industry ministry high-purity water standards, etc.), and continuously improve the process design and material selection to meet the current various standards.

This pure water equipment is designed to meet the needs of customers for pure water production , The entire process flow is : Raw water ( Tap water ) The water is sent into the media filter by a booster pump ( Including quartz sand filter, activated carbon filter) After filtration, after deep filtration by the security filter, it is sent into the reverse osmosis system by a high-pressure pump, and after deep desalination, it is sent into the intermediate water tank. At this time, the effluent can reach the national drinking water standard, and the desalination rate is 98% and the conductivity is ≤10us reaching national drinking water standards , To ensure customer needs , We have specially configured facilities such as ultraviolet sterilization and ozone generators , More powerfully ensuring the hygiene and safety of the water output , The water from the intermediate water tank is finally sent to the point of use.

        This pure water equipment uses original imported Hydranautic membranes, Southern high-pressure pumps, 304 stainless steel membrane shells, and the system control uses Delta PLC touch screen, and other imported components, a complete protection system, ensuring that the entire device can be unattended and has a high degree of automated operation. Mechanical filter: Mechanical filters, also known as pressure filters, are an important part of the pretreatment and water purification system in pure water preparation. Materials include rubber-lined carbon steel or stainless steel. Depending on the filter medium, they are divided into natural quartz sand filters, multi-media filters, activated carbon filters, manganese sand filters, etc. According to the water intake method, they can be divided into single-flow filters and dual-flow filters. They can be used in combination or individually depending on the actual situation.


Shijiazhuang Tianwang Environmental Protection Technology Co., Ltd.

Shijiazhuang Tianwang Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing and sales of water treatment equipment.

Contact Information

Production address: No. 9, Fengchan Road, Economic and Technological Development Zone, Shijiazhuang City

Office Address: 25th Floor, Block C, No. 310 Changjiang Avenue, Shijiazhuang High-tech Development Zone

Contact Number:
0311-89272359   0311-68039237

Enterprise Email:
twhbkj@163.com

Website: en.sjztwhb.com

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