摘要
根据强力霉素含氟废水的特点,采用石灰—粉煤灰两段净化工艺处理其中的氟,并对影响处理效果的主要因素进行了试验研究。结果表明,一段处理最佳条件:m(Ca)∶m(F)=2、反应时间40 min;二段处理最佳条件:粉煤灰粒径小于200目,灰水比为1∶10,振荡吸附时间为200 min,pH4～8;处理后的废水中氟质量浓度<10 mg/L,达到了GB 8978—1996《污水综合排放标准》中的一级标准。该方法工艺简单、操作方便、成本低廉。处理废水后的含氟灰渣烧制成砖块,不会对环境造成二次污染,并达到了以废治废的目的。
Based on characteristics of fluoride-containing wastewater from doxycycline, it can be treated by lime- fly ash process with two-stage purification. The primary factors effecfing the disposal efficiency are experimentally studied. The results of tests show that the optimal conditions are controlling re（Ca） ：re（F） = 2 and reaction time 40 min of the first stage; controlling grain size of fly ash〈200 mesh, ratio of fly ash and water 1：10, adsorption time 200 min, pH 4-8 of the second stage. Fluoride of the treated wastewater is less than 10 mg/L, come up to the First Class National Discharge Standard （GB 8978-1996）. Meanwhile this method is simple to operate and has lower operational cost. It is suggested that making brick with used mortar should be a good disposal method without causing secondary pollution to the environment. Furthermore, this wastewater can be treated by waste.
出处
《工业水处理》
CAS
CSCD
北大核心
2006年第7期53-56,共4页
Industrial Water Treatment
基金
河南省国际科技合作资助课题(200546640002)
关键词
强力霉素废水
除氟
化学沉淀法
粉煤灰吸附法
doxycycline wastewater
fluoride removal
chemical deposition method
fly ash adsorption
