CAJ | 학술논문

针对氰化废水的特点，以三正辛胺（TOA）为载体、煤油为膜溶剂、液体石蜡为膜助剂、NaOH水溶液为内水相，采用乳状液膜技术处理工业废水中的氰化物。重点考察了表面活性剂用量、流动载体用量、内相液NaOH浓度等因素对氰化物萃取率的影响规律。研究结果表明：当TOA体积分数为2%、表面活性剂Span-80体积分数为3%、液体石蜡体积分数为1%、内水相NaOH质量分数为2%、油内比为1︰1、乳水比为1︰7、萃取时间为15min时，氰化废水中氰化物的萃取率达到95%以上。在实验得出的最优条件下，考察最优条件对初始浓度不同的实际废水的适用范围，分别对初始浓度为322.23mg/L、483.35mg/L、644.46mg/L和966.70mg/L的氰化废水进行处理，可得该体系下处理氰化废水的较佳的浓度范围为300～500mg/L，氰化废水中氰化物的萃取率可达到95%以上。综上所述，乳状液膜法在工业上具有良好的应用前景。
침대청화폐수적특점，이삼정신알（TOA）위재체、매유위막용제、액체석사위막조제、NaOH수용액위내수상，채용유상액막기술처리공업폐수중적청화물。중점고찰료표면활성제용량、류동재체용량、내상액NaOH농도등인소대청화물췌취솔적영향규률。연구결과표명：당TOA체적분수위2%、표면활성제Span-80체적분수위3%、액체석사체적분수위1%、내수상NaOH질량분수위2%、유내비위1︰1、유수비위1︰7、췌취시간위15min시，청화폐수중청화물적췌취솔체도95%이상。재실험득출적최우조건하，고찰최우조건대초시농도불동적실제폐수적괄용범위，분별대초시농도위322.23mg/L、483.35mg/L、644.46mg/L화966.70mg/L적청화폐수진행처리，가득해체계하처리청화폐수적교가적농도범위위300～500mg/L，청화폐수중청화물적췌취솔가체도95%이상。종상소술，유상액막법재공업상구유량호적응용전경。
The cyanide wastewater was treated by emulsion liquid membrane method using three octyl amine(TOA) as carrier,kerosene as membrane solvent,liquid paraffin as membrane additives,and NaOH solution as aqueous phase. Cyanide extraction rate was influenced by surfactant dosage,mobile carrier dosage,and concentration of NaOH in the liquid phase. The experimental results showed that the extract rate of cyanide can reach above 95% in the following condition:2% of TOA volume fraction,3%of surfactant Span-80 volume fraction,1%of liquid paraffin volume fraction,2%of mass concentration of NaOH in the internal phase is,1∶1 of volume ratio of oil to internal phase is,1∶7 of volume ratio of emulsion liquid to wastewater,and 15 min of extraction time. Under the optimum condition,the different initial concentrations of cyanide wastewater of 322.23 mg/L,483.35 mg/L, 644.46 mg/L and 966.70 mg/L were studied in order to obtain the optimal range of the initial concentrations. The results showed that the extract rate of cyanide can reach above 95%when the rang of initial concentration of cyanide wastewater was 300-500 mg/L.