59 articles

• How to Use Cationic Flocculant for Wastewater Treatment
  Published : 2026-11-11 09:50:49 | Categories : Chemicals

  Learn how to use AQUARIGHT C6660 cationic flocculant, including solution preparation, recommended dosage, storage, and wastewater treatment applications.

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• How to Use Anionic Flocculant for Wastewater Treatment
  Published : 2026-11-10 11:25:23 | Categories : Chemicals

  Learn how to use AQUARIGHT A6025 anionic flocculant for wastewater treatment, including solution preparation, recommended dosage, and applications in WWTP.

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• Heat Exchanger Chemical Cleaning Services
  Published : 2026-10-27 16:02:16 | Categories : Wastewater Treatment , Water Treatment

  Heat Exchanger chemical cleaning for the pharmaceutical industry. ZEFA provides Shell & Tube descaling, scale removal, and industrial maintenance services.

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• STP Installation Supervision & Commissioning
  Published : 2026-10-27 15:48:56 | Categories : Wastewater Treatment

  STP installation supervision and testing & commissioning for a mining facility in Kalimantan by ZEFA, including technical inspections and effluent testing.

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• Medium V-Bank Filter F7 F8 F9
  Published : 2026-10-23 16:08:08 | Categories : HVAC

  For sale: Medium-efficiency V-Bank filters (F7, F8, F9) for HVAC and AHU systems. Available in sizes 592x592x292 mm and 592x287x292 mm, featuring an ABS frame. Contact ZEFA for the best price quote.

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• Impact of Wildfire Smoke on Air Intake Filters and Gas Turbine Performance
  Published : 2026-10-20 14:43:57 | Categories : HVAC

  Understand the impact of wildfire smoke on gas turbine air intake filters—ranging from particle accumulation and pressure drop to a decline in engine performance.

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• Sewage Treatment Plant (STP) Services
  Published : 2026-10-20 14:32:16 | Categories : Wastewater Treatment

  Discover BIOCAP STP, a compact domestic wastewater treatment system featuring anaerobic, aerobic, and MBBR technologies. Available in various capacities to suit your needs, at competitive prices.

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• Disposable G4 Pre-Filter 595 x 595 x 95 mm
  Published : 2026-10-14 16:22:07 | Categories : HVAC

  Explore Disposable G4 Pre-Filters for AHU and HVAC systems. Learn their advantages over washable filters and discover the 595 x 595 x 95 mm model from ZEFA.

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• Air Filters for the Pharmaceutical Industry
  Published : 2026-10-14 09:21:30 | Categories : HVAC

  Looking for medium air filter for the pharmaceutical industry? Discover the benefits and specifications of the F8 filter medium (dimensions: 287 × 592 × 150 mm / 12 × 24 × 6 inches).

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