折点加氯对脱硫废水中氨氮去除工艺优化
胡大龙,王正江,杨万荣,余耀宏,李亚娟,杨阳,卢剑,许臻

Process optimization of removal of ammonia nitrogen from FGD wastewater by break-point chlorination
Dalong Hu,Zhengjiang Wang,Wanrong Yang,Yaohong Yu,Yajuan Li,Yang Yang,Jian Lu,Zhen Xu
表1 Box-Behnken实验因素水平及其编码
实验因素及其编码 水平
-1 0 1
pH A 6.5 8.0 9.5
n(Cl)/n(N) B 1.5 3 4.5
初始氨氮质量浓度/(mg·L-1 C 150 325 500