CNR Process

Sewage Treatment Technology Using Cilium Biofilm

Process Concept

CNR(Cilium Nutrient Removal) Process is :

• To divide its biological reaction tank into anaerobic/anoxic/aerobic tanks
• To supply influent water into anaerobic tank and anoxic tank
• To pack cilium Biofilm in aerobic tank
• To remove organic matters, nitrogen and phosphorus

NT Certification & Patents

• NT(New technology) No.4 appointed and authorized by Ministry of Environment
• NT No. 181 authorized by Ministry of Construction/Transportation
• Korean Patent No. 077557 and other 7 patents
• 5 patents in foreign countries

Application

• Guri(160,000m³/day), Shihwa(279,000m³/day), Dalseo-Chun(112,000m³/day), Chungju(280,000m³/day), Anyang(37,500m³/day) sewage treatment plants and many other 9 plants
• Yangpyung Muwang-ri village sewage treatment plant and other 9 plants
• Yangpyung Yunsu-ri village wastewater treatment plant and other 13 plants
• Suwon University domestic wastewater treatment plant and other 11 plants
• Hyundai Electronics domestic wastewater treatment plant and other 3 plants

Cilium Biofilm

• Improved straight hair cilium Biofilm
• High surface area
• Maintaining a high MLSS concentration
• Smooth adhesion & separation of living things
• No blocking
• Long SRT
• Improved inner bio-denitrification ratio
• Improved nitrification ratio
• Reduction (20~30%) of sludge
• High Durability
• Easy maintenance and repair