化工技术与开发
化工技術與開髮
화공기술여개발
TECHNOLOGY & DVELOPMENT OF CHEMICAL INDUSTRY
2009年
7期
55-57
,共3页
电催化氧化%氧化乐果%降解率
電催化氧化%氧化樂果%降解率
전최화양화%양화악과%강해솔
electro-catalytic oxidation%omethoate%removal efficiency
采用钛基锡锑铅氧化物为阳极,以有机磷农药氧化乐果为目标有机物,考察了电压、电解质加入量、pH、电解时间等因素对氧化乐果的降解率和溶液COD的影响.当外加电压为8 V,电解质硫酸钠的浓度0.1 mol·L-1,pH=6,电解100 mg·L-1的氧化乐果模拟废水,2.0 h降解率为97.22%,电解时间为3.0 h时,溶液的COD去除率达78.68%.并以水杨酸为探针性物质,推测出电催化过程中羟基自由基的产生.
採用鈦基錫銻鉛氧化物為暘極,以有機燐農藥氧化樂果為目標有機物,攷察瞭電壓、電解質加入量、pH、電解時間等因素對氧化樂果的降解率和溶液COD的影響.噹外加電壓為8 V,電解質硫痠鈉的濃度0.1 mol·L-1,pH=6,電解100 mg·L-1的氧化樂果模擬廢水,2.0 h降解率為97.22%,電解時間為3.0 h時,溶液的COD去除率達78.68%.併以水楊痠為探針性物質,推測齣電催化過程中羥基自由基的產生.
채용태기석제연양화물위양겁,이유궤린농약양화악과위목표유궤물,고찰료전압、전해질가입량、pH、전해시간등인소대양화악과적강해솔화용액COD적영향.당외가전압위8 V,전해질류산납적농도0.1 mol·L-1,pH=6,전해100 mg·L-1적양화악과모의폐수,2.0 h강해솔위97.22%,전해시간위3.0 h시,용액적COD거제솔체78.68%.병이수양산위탐침성물질,추측출전최화과정중간기자유기적산생.
The Ti/Sn,Sb,Pb oxide electrodes were prepared by thermal oxidation. The results showed that the removal efficiency and the removal COD of omethoate was influenced by voltage, the concentration of electrolyte (Na2SO4), pH and the h. When the simulated wastewater was treated for 3 h, the removal rate of COD was 78.68%. Salicylic acid had been used as a probe to discuss the generation of the hydroxyl radical.
