化学氧化法除藻的试验

Research on Chemical Oxidation for Algae Removal

目的为了从臭氧、二氧化氯、高锰酸钾、硫酸铜以及次氯酸钠这5种除藻剂中,筛选出一种适宜的灭藻剂,并确定5种灭藻剂最佳投加量.方法以叶绿素a法作为检测方法,选取一种除藻剂,通过烧杯试验,确定除藻剂浓度对藻类去除率的影响.结果臭氧最佳投加量为4 mg/L,二氧化氯最佳投加量为2 mg/L,高锰酸钾最佳投加量为0.8 mg/L,硫酸铜最佳投加量为1.5 mg/L,次氯酸钠最佳投加量为3 mg/L.结论通过除藻效果的比较,得出5种除藻剂的优劣程度从优到劣顺序为:次氯酸钠>臭氧>二氧化氯>硫酸铜>高锰酸钾.次氯酸钠除藻效果显著,可达79.07%.

The purpose of the experiment is to pick out a good kind of algal killing agent from ozone, chlorine dioxide, potassium permanganate, sodium copper and chloros, and to make sure of the best cast efforts of the five algal killing agents. With chlorophylla as a method for monitoring algal in the water, picking out a kind of algal killing agent, Static Beaker experiments are done to find out the relations between the concentration of algal killing agent and the removal rate of algae. Other algal killing agent is used to repeat the experiment.The result is that the best cast effort of ozone is 4mg/L, the best cast effort of chlorine dioxide is 3mg/L, and the best cast effort of Potassium permanganate is 0.8mg/L, the best cast effort of sodium copper is 1.5mg/L, and the best cast effort of chloros is 3mg/L. Comparing the algal killing results, we find out chloros〉 Ozone〉 Chlorine dioxide 〉 Sodium copper 〉 Potassium permanganate; chloros is a good algal killing agent, whose removal rate is 79.07 96.