摘要
采用依时间序列进行对比的方法,考察了高锰酸盐复合剂(PPC)对饮用水源的强化除污染效能。生产性实验结果表明,PPC具有优良的强化混凝和强化过滤效能,能显著降低水厂沉后水和滤后水的浊度、CODMn、UV254等水质指标。与未投加时相比较,水厂投加PPC后沉后水和滤后水浊度分别降低了25%和33.3%,沉后水和滤后水CODMn去除率分别提高了15.3%和11.5%,UV254去除率分别提高了16.3%和9.5%。同时,GC/MS分析表明PPC能有效去除水源水中的多种微量有机污染物,显著提高饮用水的化学安全性。PPC通过高锰酸钾的氧化作用,水合二氧化锰的吸附作用,以及各组分间的协同强化作用,显著提高了对水中污染物质的去除效率。
The effectiveness of enhanced pollutants removal by potassium permanganate composites （PPC） for drinking water treatment was investigated through full-scale studies in time sequence. The results showed that PPC had a positive effect on coagulation and filtration; it significantly lowered the turbidity, CODMn and UV254 of the effluents of settling tank and filter. With PPC dosing, the turbidities of effluents were 25% and 33.3 % lower as compared with no PPC dosing; CODMn removal by coagulation and filtration were 15.3% and 11.5% higher as compared with no PPC dosing, and UV254 removal were improved by 16. 3% and 9. 5% , respectively. Mean- while, GC/MS analysis results showed that PPC could remove micro-organic pollutants from polluted water effectively, and improve the chemical safety of drinking water remarkably. PPC, has excellent potential of pollutants removal efficiencies resulting from the oxidation of potassium permanganate and the adsorption of hydrated manganese dioxide, also the ingredients＇ synergistic effects.
出处
《环境工程学报》
CAS
CSCD
北大核心
2007年第7期42-46,共5页
Chinese Journal of Environmental Engineering
关键词
高锰酸盐复合剂(PPC)
强化混凝
强化过滤
微量有机污染物
potassium permanganate composites （PPC）
enhanced coagulation
enhanced filtration
micro-organic pollutants
