CAJ | 학술논문

采用超声波强化TiO_2光催化技术处理垃圾渗滤液.研究了TiO_2催化剂用量、光照作用、超声波作用、pH值、曝气作用等因素对垃圾渗滤液中COD和氨氮去除率的影响.结果表明,在TiO_2粉未的投加量为2 g/L、PH值为11时,先采用功率为292.5 W的超声波辐射3 min,再以高压汞灯(250 W)照射3 min,垃圾渗滤液中的COD和NH_3-N去除率分别达到50.1%和75%.若在同一条件下进行饱和曝气可以使NH_3-N去除率进一步达到85.3%,但会降低COD的去除率.
채용초성파강화TiO_2광최화기술처리랄급삼려액.연구료TiO_2최화제용량、광조작용、초성파작용、pH치、폭기작용등인소대랄급삼려액중COD화안담거제솔적영향.결과표명,재TiO_2분미적투가량위2 g/L、PH치위11시,선채용공솔위292.5 W적초성파복사3 min,재이고압홍등(250 W)조사3 min,랄급삼려액중적COD화NH_3-N거제솔분별체도50.1%화75%.약재동일조건하진행포화폭기가이사NH_3-N거제솔진일보체도85.3%,단회강저COD적거제솔.
The effects of TiO_2 dosage, ultraviolet, ultrasonic, pH and aeration on degradation of COD and N-NH_4~+ in landfill leachate were studied by the ultrasonically enhanced photocatalytic technology, The results showed that removal rates of COD and NH3-N reached 50. 1% and 75 % , respectively, when the TiO_2 dosage was 2 g/L, pH was 11, ultrasonic (292. 5 W) was radiated 3min and high pressure mercury lamp (250 W) irradia-ted 3 min. The removal rate of NH3-N could reach to 85. 3% by aerated under the same conditions, but the re-moval rate of COD reduced.