摘要
以陶粒为生物滤料对富营养化水源水进行预处理,研究生物滤柱对藻类和污染物的去除率,并分析其影响因素。结果表明:在试验运行条件下,对水中藻类和污染物有一定的去除效果。对藻类的去除依种类的不同而异,水力负荷增加降低去除率,平均去除率为66.7%;对CODMn的去除率为30%左右,对氨氮的去除率可达90%以上,CODMn和氨氮受温度的影响较大;对浊度和色度也有一定的去除效果,其平均去除率分别为67%和32%。同时生物陶粒滤柱出水的PH值有所下降,加石灰适当调整;出水DO增加,改善了出水水质。
<Abstrcat>Hayhite is used as the biologic carrier in this article and using biologic filter to pretreatment the eutrophia water. We learn the removal rate of algae and the pollutant by the biologic filter and its influencing factor by experiment. The result showed that the removal of the algae and pollutant was pleased. The removal of algae was affected by its species and the working condition. The increasing of the water conservation reduced its removal rate and its average removal rate is 66.7%. The removal of the polluted is showed by the COD_(Mn) and NH^+_4-N. The removal rate is about 30% and 90%, which were greatly effected by the temperature. The average removal rates of turbidity and colourity were 67% and 32%. The pH of the water was a little decreasing. It can be adjusted by adding lime. It improved the yielding water by increasing DO.
出处
《河北建筑科技学院学报》
2005年第2期1-3,12,共4页
Journal of Hebei Institute of Architectural Science & Technology
基金
河北省自然科学基金项目(503400)
河北省科技攻关项目(00276711)
关键词
陶粒
生物滤柱
藻类
污染物
haydite
biologic filter
algae
pollutant
