上向流生物膜反应器对水中铜绿微囊藻的去除研究

Removal of Microcystis Aerogenosa from a Raw Water with an up-flow Bioreactor

摘要: 以含野生型铜绿微囊藻天然原水为处理对象,考察了上向流生物膜反应器和混凝处理组合对藻总数、叶绿素a、UV254的去除效果.结果表明:当进水温度20℃,滤速分别为4.0、6.0、8.0m/h时,藻总数去除率分别为73.33%~96.87%、70.00%~96.66%、88.24%~97.06%,叶绿素a去除率分别为83.60%~96.43%、68.75%~95.45%、66.79%~89.80%,UV254去除率分别为27.38%~68.30%、16.86%~55.11%、49.60%~50.40%;当进水温度20℃时,相同的滤速条件下,藻总数、叶绿素a、UV254去除效果呈下降趋势.

Abstract: The natural source water containing wild-type microcystis aeruginosa was treated.The removals of algal gross number,Chl-a,and UV254 were investigated by biofilm reactor and coagulation treatment.The results show that the removals were 73.33%~96.87%,70.00%~96.66%,88.24%~97.06% for algal gross number,83.60%~96.43%,68.75%~95.45%,66.79%~89.80% for Chl-a and 27.38%~68.30%,16.86%~55.11%,49.60%~50.40% for UV254 under the up-flow velocities were 4.0,6.0,8.0 m/h when the water temperature was higher than..