摘要
为了解决粉煤灰高效除磷但不易与水分离的问题,将粉煤灰吸附与聚合硫酸铁(PFS)混凝联用来处理含磷污水,采用单因素法考察了PFS投加量、粉煤灰投加量、振荡强度、PFS投加点、p H值、氨氮存在时对磷的去除率影响。结果表明:当初始磷质量浓度为2 mg/L时,PFS投加量30 mg/L,粉煤灰投加量20 g/L,振荡强度50 r/min,PFS在粉煤灰吸附20 min后加入,p H值中性,无氨氮存在时,反应30 min磷去除率为75.85%;氨氮存在对磷去除率有一定促进作用;粉煤灰吸附与聚合硫酸铁(PFS)混凝联用可有效处理含磷污水。
In order to solve the efficient phosphorus removal but not easily separating from the water of fly ash, this test combined the adsorption of fly ash and the coagulation of polymeric ferric sulfate （PFS） to deal with phosphorus wastewater. The effects of PFS dosage, fly ash dosage, oscillation intensity, dosing point of PFS, pH and ammonia nitrogen on phosphorus removal using single factor method were studied. The results showed that： for initial phosphorus of 2 mg/L, reacting 30 min the removal rate of phosphorus is 75.85%, when PFS dosage is 30 mg/L, fly ash dosage is 20 g/L, oscillation intensity is 50 r/min, after 20 min of fly ash adsorption PFS joining in, pH is neural and no ammonia nitrogen exists. Ammonia nitrogen on phosphorus removal rate has a certain role in promoting. The existence of ammonia nitrogen has certain stimulative effect for phosphorus. The adsorption of fly ash and the coagulation of polymeric ferric sulfate （PFS） combined can deal with phosphorus wastewater effectively.
出处
《非金属矿》
CAS
CSCD
北大核心
2016年第6期4-6,共3页
Non-Metallic Mines
基金
国家自然科学基金(51174267
51474122)
辽宁省"百千万人才工程"项目(2014921069)
辽宁省高校科研立项计划(2008300)
