有机污染物对流动电流检测灵敏度的影响研究

进行了将流动电流混凝投药自动控制系统应用于 4种受污染水源水的试验 ,研究了该系统检测灵敏度受污染物的影响情况。试验结果表明污染物的存在使流动电流的检测灵敏度降低 ,污染物的组成成分和浓度等都是影响灵敏度的主要因素 ,但是流动电流与投药量的相关性仍然存在。在CODMn不超过 10mg L或油类物质浓度 <2～ 10mg L ,时 ,污染物的影响程度较小 ,将流动电流混凝投药控制技术应用于此条件下的受污染水源水是可能的。

RESEARCH ON EFFECT OF ORGANIC POLLUTANTS ON DETECTION SENSITIVITY OF STREAMING CURRENT

In this paper,an experimental study was carried out through four kinds of water that were polluted and the effect on the precision of streaming current control system by the pollutants was researched.The results showed that the relationship between SC and coagulant dosage was still existed under the experimental condition.But the pollutant in the water affected the precision of streaming current control system,it decreased the precision of streaming current control system,and the effect degree of the pollutant related to the kinds of the pollutant and the concentration of the pollutant.However,the effect was not notable when COD Mn of the water resource was no more than 10 mg/L or the concentration of oil was less than 2～10 mg/L,so the streaming current control method for coagulant dosage could be used for the water resource which was polluted by organic pollutants under the experimental condition.