Advanced Equipment and Services

Custom skid-mounted water purification equipments for ultrapure water industry - Water and Wastewater

Ultrapure water (UPW) is water that has been purified to very strict specifications, containing by definition only H20, and H+ and OH- ions in equilibrium. Therefore, ultrapure water conductivity is about 0,055 uS/cm at 25oC, also expressed as resistivity of 18,2 MOhm. Ultra-pure water is mainly used in the semiconductor and pharmaceutical industry often is produced through processes like membrane filtration or ion exchange to reach the ultimate conductivity of 10 uS/cm. The demineralized water is then processed through a high performance Mixed Bed or by Electro deionization.

In general these are the main steps to achieve desired ultrapure water quality.

  • TDS: 100-12,,000 mg/l (as NaCl)
  • SDI15: < 3.0
  • Temperture: 25 to 35ºC (77 to 95°F)
  • Recovery: 70 to 85%
  • Nominal Rejection: >98%
  • Incoming Power: 480/380/220/110V 60/50Hz

Note: Required 3bar (45psi) minimum customer supplied pressure to high pressure RO Feed Pump. Temperatures and high salinities will reduce system productivity.

Complete flowchart for ultrapure water production showing the ADVANCEES systems.  This flowchart vary based on raw water quality and customer’s requirement. Many options and combinations are possible, the best solution needs to accommodate the minimum life cycle cost such as low operating cost, low maintenance, easy to operate and monitor.