Reverse Osmosis system

Reverse Osmosis:RO+EDI+Ultrafilter(PLC).Meet with FDA specification, standards of EP, USP, China's pharmacopoeia,cGMP.

Reverse Osmosis

Summarize:

 Reverse Osmosis is the opposite process of the natural permeation. It is caused by pile pressure on the concentrate solution, which is contacted with the semi permeable membrane.

  Reverse Osmosis is adopted almost in all industries, including water desalting( make drink water from bitter &salt water and seawater), purified water (purification of cooling water and boiler water), ultra-pure water (water for paint illuvial and semiconductor),water for chemical manufacturing (pharmaceutical or cosmetics industries), foods and beverage production (produce concentrating fruit juices and cheese) and purification of industry waste water(purification of waste water ect. RO technique is easy to operate, which has high efficiency of desalination. With the high ability of removing heat, with the economic affection, it is perfect equipment for pharmaceutical industry.

  EDI is electro deionization. The EDI design combines two well-established water purification techniqueselectro dialysis and ion-exchange resin deionization. Through this revolutionary technique, dissolved salts can be removed with low energy cost and without the need for chemical regeneration.

Working principle

  Osmosis is a process of water from the dilute solution automatically flowing to concentrate side through the semi permeable membrane.

  RO is the opposite process of the natural permeation. It is caused by pile pressure on the concentrate solution, which is contacted with the semi permeable membrane. If the applied pressure is bigger than the natural osmosis pressure, the solution will pass through semi permeable membrane. Then the diluted solution is formed at the opposite side. Meanwhile the concentrate solution will be formed at the applied pressure side. If the applied pressure is equal to the natural osmosis pressure of solution, the solution can not flow to the opposite side. If the applied pressure is smaller than the natural osmosis pressure of solution, the solution will flow from the diluted side to the concentrate side.

  Speed of water passing membrane is related with membrane capability, solution temperature. It is also related to the value------pressure difference of membranes both sides subtracts osmosis pressure difference of diluted and concentrated solution. The osmosis pressure has direct relationship with density and temperature of solution. It is also related with the type of ion in solution.

  There is the principle for the pressure difference: the solution with the density of per 1000mg/L, which is contained sodium chloride, at room temperature, the osmosis pressure value is 0.069Mpa.

Techniques flow

  RO system normally includes pre-treatment and mainframe and assistant equipment, but assistant equipment is not necessary.

  Simple pre-treatment crafts include multi-layer bed filter, softener or anti-incrustant dosing station and ultra-filter.

  The completed pre-treatment crafts include floculant dosing station, multi-layer bed filter, active carbon filter, softener or anti-incrustant dosing station, heat exchanger, ultra-filter and PH value adjusting equipment.

  The assistant equipment is the recycling chemical sterilizing cleaning equipment.

  EDI modules continually produce ultra-pure water up to 18.2 MΩ.cm.  EDI also can be run continuously or intermittently.

  Electropure EDI removes ions from water by forcing them out of the feed stream into adjacent streams via an electric potential.  EDI is different from ED by using resins in the diluting chambersthe resins allow for more efficient migration of ions in very low conductivity water. The resins operate in steady status, they act not as an ion reservoir but as an ion conduit.

Advantages of EDI

        EDI no need chemical regeneration.

        No need storage of acid and alkali, dilution and transportation settings.

        Having no settings to deal with regenerating dirty water and dirty water.

        Saving water for back purge and cleaning. High producing ability for ultra-pure water.

        No need stop the machine at the time of regenerating EDI.

        Providing table quality of water.

        Low dissipation energy.

        Easy to operate and manage, having small labor intensity.

        Easy to install, running. The maintenance charges are low.

EDI removes ions from aqueous streams, typically in conjunction with reverse osmosis and other purification devices.

     1 stage RO+EDI

     Double stages RO +EDI

     Double stages RO +EDI+Ultra-filterIt (It can satisfied the WFI requirement in Pharmacopoeia in partial countries, so it is needn't use multi-effect water distiller.)

Equipment characteristics:

  Manufacture time: It is a company with redundant experiences, who produces water system equipment earlier than others.

  Control way: Normal one: PLC + touch screen + paperless recorder or printer full automatic control. It also can be customized according to customers requirements.It can realize the alarm of level, conductivity etc by PLC, it is also can observe the online value of temperature, pressure, conductivity, flow etc. 

  Linkage: it can be customized to realize the linkage of equipment and storage tanks, according to the customers requirements.

 Cost budget: It is designed equipment and made cost budget according to the customers requirements.

Producing advantages:

        Advanced welding machine.

        Advanced welding technology. 

        Advanced surface treatment.     

        Using primitive plate to process tube plate and flange.

        Using the North Sea capped end

        Using X-Ray crack detection to check interior quality.

        Using endoscope to check the welding quality.

        Using roughness detector to check the quality of polish.

        Using mechanical and electro-chemical polish, acid clean, passivation(critical parts).      

Critical parts:

  All the critical parts are adopted the famous brands, so that it is further guaranteed the quality of the equipment. E.g.: Grundfos pump, Hydraunautics membrane, Electropure EDI, Gemu valves, Burkert valves, E+H instruments and +GF+ instruments etc.

Commissioning, Qualification & Validation

 Provide edition and execution of the commissioning, qualification and validation, which are meet with the FDA regulation, cGMP standard. The output quality is meet with the USP, EP, Pharmacopoeia of People's Republic of China.

Reverse Osmosis system