Development of physicochemical nitrogen removal process for high strength industrial wastewater.
The biological nitrogen removal (BNR) process is the most common method for removing low quantities of ammonium from wastewater, but this method is not used for wastewater rich with ammonium. In this study, we have developed the physicochemical nitrogen removal process to remove the nitrogen content for a real industrial wastewater. The denitrification was accomplished by the physicochemical denitrification process using zinc powder and sulfamic acid in pH 2-4. The experimental parameters were examined by varying various reaction conditions such as pH, zinc feeding time, amount of sulfamic acid, and amount of nitrate concentration. For each experimental condition, the physicochemical denitrification process was determined by pH, amount of zinc powder and sulfamic acid, zinc feeding time and nitrate concentration.
Department of Chemical Engineering, Yonsei University, 134 Shinchon-dong Seodaemun-ku, Seoul 120-749, Republic of Korea.
Seungmoon
S
Lee
Sanjeeu
S
Maken
Jung-Hwa
JH
Jang
Kwinam
K
Park
Jin-Won
JW
Park
D000641:Ammonia / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000737:chemistry* / Q000302:isolation & purification*; D013451:Sulfonic Acids / Q000737:chemistry; D013997:Time Factors; D014865:Waste Disposal, Fluid; D014867:Water / Q000737:chemistry; D018508:Water Purification / Q000379:methods*; D015032:Zinc / Q000737:chemistry
D013451:Sulfonic Acids; D014867:Water; D000641:Ammonia; C005741:sulfamic acid; D015032:Zinc; D009584:Nitrogen