改性粉煤灰处理生活污水中磷的试验研究  

STUDY ON REMOVAL OF PHOSPHORUS FROM DOMESTIC WASTEWATER BY MODIFIED FLY ASH

作　　者：王锐刚[1] 成坚[2] 

机构地区：[1]山西大学工程学院,山西太原030013 [2]杭州水处理技术研究开发中心,浙江杭州310012

出　　处：《水处理技术》2013年第1期97-100,共4页Technology of Water Treatment

基　　金：山西省高校科技开发项目(20121132)

摘　　要：采用改性粉煤灰为吸附剂,对生活污水中磷进行吸附脱磷试验,并研究粉煤灰粒径、投加量、pH、温度、振荡强度以及吸附时间等因素对脱磷效果的影响。结果表明,在粉煤灰粒径为0.075～0.096 mm、投加量为25 g/L、溶液pH为3.5、水温为50℃的条件下,对磷质量浓度为6.0 mg/L的生活污水,以140 r/min的强度振荡吸附120 min,磷的去除率可高达94.5%,水样中的磷质量浓度降至0.5 mg/L以下。To prevent eutrophication and to treat domestic wastewater effectively,the experiment of removing phosphorus from domestic wastewater was carried out using modified fly ash as an absorbent.The effect of fly ash particle diameter,fly ash dosing quantity,pH value,temperature,oscillating strength and adsorption time on phosphorus removal were studied.The results showed that when the fly ash size ranged from 0.075 to 0.096 mm,the fly ash dosing quantity was 25 g/L,pH value was 3.5,the temperature was 50 ℃,the concentration of phosphorus in the domestic wastewater was 6.0 mg/L,the oscillating strength was 140 r/min,and the adsorption time was 120 minutes,the removal efficiency of phosphorus could reach 94.5% and the concentration of phosphorus could reduce to under 0.5 mg/L.

关 键 词：改性粉煤灰 含磷生活污水 去除率 

分 类 号：X799.3[环境科学与工程—环境工程]