Advanced sludge reduction and phosphorous removal process①
来源期刊：中南大学学报(英文版)2006年第3期
论文作者：吉芳英 左宁 杨肃博 胡玉琴
文章页码：313 - 317
Key words：sludge reduction; phosphorous removal; dissolved oxygen; simultaneous nitrification and denitrification
Abstract: An advanced sludge reduction process, i.e. sludge reduction and phosphorous removal process, was developed. The results show that excellent sludge reduction and biological phosphorous removal can be achieved perfectly in this system. When chemical oxygen demandρ(COD) is 332 420 mg/L, concentration of ammonia ρ(NH3-N) is 30 40 mg/L and concentration of total phosphorousρ(TP) is 6.0 9.0 mg/L in influent, the system still ensuresρ(COD)<23 mg/L,ρ(NH3-N)<3.2 mg/L andρ(TP)<0.72 mg/L in effluent. Besides, when the concentration of dissolved oxygenρ(DO) is around 1.0 mg/L, sludge production is less than 0.140 g with the consumption of 1 g COD, and the phosphorous removal exceeds 91%. Also, 48.4% of total nitrogen is removed by simultaneous nitrification and denitrification.
