摇蚊幼虫与铜绿微囊藻代谢产物生成消毒副产物规律研究  

Formation of Disinfection By-products from the Chlorination of Microcystis aeruginosa and Chironomid Larvae Metabolite Dissolution

作　　者：张树松[1] 孙兴滨[1] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040

出　　处：《安徽农业科学》2015年第1期80-83,共4页Journal of Anhui Agricultural Sciences

基　　金：黑龙江省自然科学基金项目(E200812);中国博士后基金特别资助项目(200902408)

摘　　要：[目的]了解铜绿微囊藻与摇蚊幼虫代谢产物消毒副产物的生成特性。[方法]研究了摇蚊幼虫与铜绿微囊藻代谢产物生成消毒副产物的规律。[结果]铜绿微囊藻与摇蚊幼虫共存时代谢产物中消毒副产物的含量远小于两者单独氯化消毒产生副产物之和。两者共存时副产物的变化趋势与单独存在相同,在不同的反应条件下生成的消毒副产物的规律也各不相同,具体表现为:三氯甲烷(TCM)、水合氯醛(CH)、二氯乙酸(DCAA)、三氯乙酸(TCAA)、1,1,1-三氯丙酮(1,1,1-TCP)的生成量均随投氯量的增加而增大,1,1-二氯丙酮(1,1-DCP)的浓度随投氯量的增加而先增大后减小;延长反应时间可促进TCM、DCAA的生成,而TCAA、1,1-DCP、1,1,1-TCP的浓度则先增大后减小,CH的变化不明显;p H有利于TCM的形成,在酸性条件下DCAA的浓度增大,而在碱性条件下保持不变,CH、TCAA的最高浓度出现在p H为7时,1,1-DCP、1,1,1-TCP的浓度则随p H的增加而逐渐减少;TCM、DCAA和TCAA均随温度的升高而逐渐增加,CH、1,1-DCP和1,1,1-TCP均是在20℃时达到最大,温度继续升高,浓度反而下降。[结论]为饮用水处理过程中摇蚊幼虫和铜绿微囊藻2种生物污染的防治提供了理论依据。[ Objective I The aim was to understand producing characteristics of disinfection by-products from the chlorination of M. aeruginosa and chironomid larvae metabolite dissolution. [ Method] The law on the formation of disinfection by-products from the chlorination of M. aeruginosa and chironomid larvae metabolite dissolution was studied. [ Result] Content of DBPs of M. aerugirtosa and ehironomid larvae in the coexis- tence of metabolites was far less than the two separate chlorinated DBPs. The change tendency of the coexistence of the two side product was the same to one of them alone. Under different reaction conditions, the law of DBPs generated also varied as follows： the contents of chloroform （ TCM）, chloral hydrate （ CH）, dichloroaeetic acid （ DCAA）, tricbloroacetie acid （TCAA） and 1,1,1 -trichloro-2-propanone （ 1,1,1 -TCP） in- creased with the increase of the amount of chlorine, 1,1-dichloro-2-propanone （1,1-DCP） increased with the concentration of chlorine dosage in- creasing first and then decreased ; the longer reaction time could promote the formation of TCM and DCAA, while the concentration of TCAA, 1, 1-DCP and 1,1,1-TCP increased first and then decreased, CH did not change significantly ; pH was beneficial to the formation of TCM, and the concentration of DCAA in the acid condition increased, while it remained unchanged in alkaline condition, and the highest concentration of CH, TCAA appeared in pH7, and the concentration of 1,1-DCP and 1,1,1-TCP decreased with the increase of pH gradually ; the contents of TCM, DCAA and TCAA increased with temperature increasing, furthermore CH, 1,1-DCP and 1,1,1-TCP reached the maximum at 20 ~C, and then decreased when the temperature continued to rise. [ Conclusion] The results provide theoretical basis for pollution control of M. aeruginosa and chironomid larvae in drinking water treatment.

关 键 词：摇蚊幼虫 铜绿微囊藻 代谢产物 消毒副产物 

分 类 号：S433.89[农业科学—农业昆虫与害虫防治]