Southwater LLC

Southwater LLC

Disinfection By-Product Precursor Removal


High Performance Multimedia Filtration Main Applications. Proprietary stratified FilterClearTM media of up to four layers, specially developed and applied over 10 years for exceptional performance.

Main Applications

  • Potable water from surface or borehole
  • Desalination reverse osmosis pre-treatment
  • Tertiary sewage filtration for reuse or compliance
  • Industrial process, cooling, wastewater, reuse
  • Rainwater and greywater treatment

Key Advantages

  • High loading rate (25-50 m3/m2/h, i.e. 2-5x flow rate of competing technologies)
  • High solids retention (low pressure drop and long backwash interval)
  • High quality filtrate in a single step (SDI <3; NTU <0.1; BOD concentration <6mg/l)
  • Low CAPEX (2-5x less media, fewer vessels) -
  • Low OPEX (no chemical use, low electricity consumption)
  • Low backwash volume (<6% of filtrate, small backwash tanks, better yield, less waste) -
  • Small footprint (2-5x smaller filter area, smaller plant) -Low O&M (simple, reliable, easy to maintain)
  • Modular systems up to 1200m3/h per vessel

FilterClear is a pressure multimedia filter technology capable of separating suspended solids from a wide range of waters with a comparatively high performance, even at high loading velocities. FilterClear plants are currently installed at over 40 sites, treating waters such as secondary effluent at wastewater treatment plants, cooling waters at industrial sites and seawater at desalination plants.

Throughput ranges from 5 m3/hr up to 5000 m3/hr. Commercial applications include pharmaceuticals, food and beverage, cooling water and RO pre-treatment for various industries, distilleries and communal buildings including flats, offices, hospitals and hotels. FilterClear technology competes cost-effectively with other multimedia filters, continuous filters, deep bed filters, disc filters and micro screens. It has a strong track record in conventional filtration applications and can replace ultrafiltration membranes upstream of RO membranes.

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