基于化学沉淀法的水环境荧光有机污染物处理研究

Research on the Treatment of Fluorescent Organic Pollutants in Water Environment Based on Chemical Precipitation Method

应用化学沉淀法处理水环境中荧光有机污染物时,采用硫酸铵((NH_(4))_(2)SO_(4))作为主要沉淀剂,加入预处理后的水样中,进行化学沉淀反应,通过静置和离心将沉淀物与水溶液分离,将调整后的水样静置沉淀1 h,以便沉淀物形成并沉淀。将形成的沉淀物经过滤器分离,并将澄清液与固体分开,获取处理后的水样,自动记录荧光强度数据,并生成荧光光谱图,注入总有机碳分析仪(TOC分析仪)中,测量样品中的有机物含量,结合荧光强度检测结果,综合评估水样的整体处理效果。实验结果表明,运用化学沉淀法之后大部分污染物去除率都超过了80%,并且去除率均保持在相对稳定的水平,没有出现明显的波动。这说明基于化学沉淀法的水环境荧光有机污染物处理方法的效果较为显著,可以在不同条件下对多种类型的荧光有机污染物进行有效去除,具有广泛的适用性。

When using chemical precipitation method to treat fluorescent organic pollutants in water environment,ammonium sulfate(NH_(4))_(2)SO_(4) is used as the main precipitant and added to the pre-treated water sample for chemical precipitation reaction.The precipitate is separated from the aqueous solution by standing and centrifugation,and the adjusted water sample is left to settle for 1 hour to form and precipitate.Separate the formed sediment through a filter and separate the clarified liquid from the solid to obtain the processed water sample.Automatically record the fluorescence intensity data and generate a fluorescence spectrum.Inject it into a total organic carbon analyzer(TOC analyzer) to measure the organic content in the sample.Combined with the fluorescence intensity detection results,comprehensively evaluate the overall treatment effect of the water sample.The experimental results showed that after using the chemical precipitation method,the removal rate of most pollutants exceeded 80%,and the removal rate remained relatively stable without significant fluctuations.This indicates that the chemical precipitation based method for treating fluorescent organic pollutants in water environments has significant effects and can effectively remove various types of fluorescent organic pollutants under different conditions,with wide applicability.