Water purification unit for the food and beverage industry

for potable waterreverse osmosissterilization

Overview: Reverse osmosis (RO) uses semi-permeable spiral-wound membranes to separate and remove dissolved solids, organic compounds, pyrogens, sub-micron colloids and bacteria from water. Feed water is delivered at approximately 16 kg/cm2 to the RO membranes. Permeate passes through membrane pores and is produced as purified water while impurities concentrate in the reject stream and are flushed to drain. Typical removal rates: 90–99% TDS, ~99% organics (including pyrogens) and ~99% bacteria depending on feed water and configuration.

Application / Process flow:

• Raw water
• Raw water tank
• Raw water pump (booster pump)
• Sand filter (mechanical / quartz sand filter)
• Activated carbon filter
• Softener (optional)
• Security filter (PP / sediment filter, 5 micron)
• 1st stage high pressure pump
• 1st stage reverse osmosis system
• 2nd stage high pressure pump
• 2nd stage reverse osmosis system
• Pure water tank
• UV sterilizer / ozone generator (optional)
• Water supply points

Components table (No. | Name | Function | Remark):

• 1 | Raw water tank | Store water, buffer pressure and stabilize feed to the system | Customer to provide due to transport cost for large tanks
• 2 | Raw water pump (booster pump) | Provide required pressure for pretreatment filters | CNP or Grundfos pumps available
• 3 | Mechanical filter / quartz sand filter | Fiberglass or stainless steel vessel filled with quartz sand to remove large particles, suspended solids and colloids |
• 4 | Activated carbon filter | Fiberglass or stainless steel vessel filled with activated carbon to remove color, odor, residual chlorine and organics |
• 5 | Security filter / PP sediment filter | Prevent large particles, bacteria and viruses entering RO membranes; nominal 5 micron
• 6 | High pressure pump | Supply working pressure for RO stages and ensure production capacity | CNP or Grundfos options
• 7 | RO (reverse osmosis) system | Removes particles, colloids, organic impurities, heavy metal ions, bacteria and viruses; high salt rejection depending on membranes | RO membranes: Filmtec (Dow)
• 8 | UV / Ozone generator | Disinfection: UV for direct drinking water, ozone for bottled water applications |

Technical specifications:

• Technology: Reverse osmosis with semi-permeable spiral-wound membranes.
• RO performance: removes 90–99% of TDS; ~99% organics (including pyrogens); ~99% bacteria; up to ~97% dissolved salts depending on configuration.
• Typical feed pressure to RO membranes: approximately 16 kg/cm2.
• Pretreatment components: raw water tank, booster pump, sand filter (quartz sand), activated carbon filter, optional softener, security PP/sediment filter (5 micron).
• High pressure stages: single- and two-stage high pressure pumps feeding corresponding RO stages; pump brands: CNP or Grundfos.
• RO membranes: Filmtec (Dow) specified.
• Post-treatment options: pure water tank, UV sterilizer (for direct drinking water) and/or ozone generator (for bottled water).
• Housing materials for pretreatment vessels: fiberglass or stainless steel.
• Function: designed to remove particles, colloids, organics, heavy metals, bacteria and viruses to produce purified water for supply points.