Selection Criteria for Drinking Water Treatment and Supporting Equipment

  Apr 13, 2026

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Water Quality Type

  • Clear Water Treatment: Focus on filtration precision (e.g., 5-50 microns) and sterilization method (UV/ozone)
  • Wastewater Treatment: Emphasize COD/BOD removal rate (typically requiring 80%-95%) and sludge treatment capacity
  • Special Water Quality (e.g., aquaculture water): Requires oxygenation devices (dissolved oxygen ≥ 5 mg/L) and ammonia nitrogen removal function.

 

Processing Capacity

  • Small equipment (<10 tons/day): Suitable for homes or laboratories; energy consumption is a primary concern (typically 0.5-1.5kW).
  • Medium equipment (10-100 tons/day): Commonly used in restaurants/hotels; modular design is recommended.
  • Large systems (>100 tons/day): Require customized solutions; pump power (e.g., 7.5-30kW) is a key consideration.

 

Key Parameters

  • Operating Pressure: Atmospheric pressure type (0.1-0.3MPa) or high pressure type (0.6-1.2MPa)
  • Recovery Rate: Typically 60%-75% for reverse osmosis systems
  • Corrosion Resistance: 316L stainless steel suitable for environments with pH 2-11

 

Extended Functionality

  • Intelligent Control: PLC-enabled (programmable ≥500 parameters) is recommended.
  • Disinfection Options: UV intensity ≥30mJ/cm² or ozone concentration 0.1-0.3ppm.
  • Emergency Handling: Backup power supply required (e.g., UPS with ≥2 hours of battery life).

 

Industry Certifications

  • Drinking water equipment must be NSF/CE certified.
  • Medical wastewater treatment must comply with GB18466-2005 standard.
  • Industrial circulating water should meet GB50050-2017 requirements.
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