摘要
比较了生石灰和锁磷剂对河流低含量TP的去除性能。结果表明,当投加质量浓度为0～15 mg/L时,生石灰和锁磷剂对TP均无明显去除效果,但生石灰可使系统pH升高,而锁磷剂对系统pH无影响。当两者投加质量浓度为20～200 mg/L时,锁磷剂系统内pH由8.5降至7.5,对TP去除率28.85%～92.31%,有效利用率2.4～9 mg/g;投加质量浓度在80～200 mg/L时去除率可达80%以上,出水TP质量浓度低于0.1 mg/L,生石灰系统内pH由8.5升至10以上,对TP去除率为16.67%～72.22%,有效利用率为1.9～4.38 mg/g;当投加质量浓度在180 mg/L左右时,去除率达最大,出水TP浓度为0.16 mg/L。锁磷剂的综合除磷性能更有优势,其对TP、溶解性磷酸盐都有持久去除作用,最终确定锁磷剂优化投加质量浓度为60 mg/L。
The removal performance of low content TP in river by quicklime and phoslock were compared. The results showed that when adding mass concentration was 0~15 mg/L, quicklime and phoslock both had no removal efficiency on TP, but quicklime could increase pH of the system, and the phoslock had no effect on the system. When the both adding mass concentration was 20~200 mg/L, the pH in the phoslock system was reduced from 8.5 ~ 7.5, and the removal rate of TP was 28.85%~92.31%, and the effective utilization rate was 2.4~9 mg/g. when the adding mass concentration of phoslock was at 80~200 mg/L, the removal rate was more than 80%, and the effluent mass concentration of TP was below 0.1 mg/L. while the pH in the quicklime system increased from 8.5 to more than 10, and the removal rate of TP was 16.67%~72.22%, and the effective utilization rate was 1.9~4.38 mg/g. When the mass concentration of quicklime was about 180 mg/L, the removal rate was maximum, and the effluent mass concentration of TP was 0.16 mg/L. The comprehensive phosphorus removal capacity of phoslock was better, and it had a continuous removal effect on total phosphorus and soluble phosphate. Therefore, the optimum adding mass concentration of phoslock was 60 mg/L.
作者
王杰
王宇峰
杨尚源
胡睦周
黄燕
南明星
WANG Jie;WANG Yufeng;YANG Shangyuan;HU Muzhou;HUANG Yan;NAN Mingxing(R & D Centre of Zhejiang Zone-King Environmen Tab Sci & Tech Co, Hangzhou 310004, China)
出处
《水处理技术》
CAS
CSCD
北大核心
2019年第1期42-45,50,共5页
Technology of Water Treatment
基金
浙江卓锦环保科技股份有限公司水环境治理SWFS(ZK-2017-甲08)
关键词
生石灰
锁磷剂
投加浓度
TP
溶解性磷酸盐
去除率
quicklime
phoslock
adding concentration
total phosphorus
soluble phosphate
the removal rate
