Nitrate Removal from Drinking Water with Sodium Citrate as Sole Carbon Source

【Abstract】 This paper investigates the effect of using sodium citrate（NaC₆H₅O₆·2H₂O）as sole carbon source for nitrate removal from drinking water.With sodium citrate as sole carbon source, batch experiments have been conducted to study the law of denitrification influenced by pH, C/N and temperature. Results show that a denitrification rate reaching 1.32 g NO^-₃-N /（g Biomass·d） was obtained when pH was at 7.5,C/N at 1.7（atom ratio）, and temperature from 20 ℃ to 30 ℃. The results also show that denitrification rate with sodium citrate as carbon source approaches to that with methanol as carbon source.更多还原