CAJ | 학술논문

以负载铁(Ⅱ)的颗粒活性炭(GAC)为催化剂,采用微波强化Fenton氧化处理老龄垃圾渗滤液,考察了对垃圾渗滤液的处理效果及微波的作用机理.结果表明,微波对Fenton氧化反应有催化作用,且可促进渗滤液中胶体的絮凝,微波作用时间是影响处理效果的主要因素;当GAC的铁负载量为33.32 mg/g、微波功率为720 W、微波时间为30 min时,对COD和NH_3-N的去除率最高,分别达到了95.64%和88.63%;COD主要通过催化氧化作用被去除,而NH_3-N主要通过絮凝、吸附作用被去除;另外,微波可使GAC再生,提高了GAC的利用率.
이부재철(Ⅱ)적과립활성탄(GAC)위최화제,채용미파강화Fenton양화처리노령랄급삼려액,고찰료대랄급삼려액적처리효과급미파적작용궤리.결과표명,미파대Fenton양화반응유최화작용,차가촉진삼려액중효체적서응,미파작용시간시영향처리효과적주요인소;당GAC적철부재량위33.32 mg/g、미파공솔위720 W、미파시간위30 min시,대COD화NH_3-N적거제솔최고,분별체도료95.64%화88.63%;COD주요통과최화양화작용피거제,이NH_3-N주요통과서응、흡부작용피거제;령외,미파가사GAC재생,제고료GAC적이용솔.
Using granular activated carbon (GAC) loaded with Fe (Ⅱ) as catalyst, microwave-enhanced Fenton oxidation was used to treat aged landfill leachate. The treatment efficiency of landfill leachate and the mechanism of microwave irradiation were investigated. The results indicate that micro-wave can catalyze the oxidation reaction and promote colloidal flocculation in the leachate. Microwave ir-radiation time is a main factor influencing the treatment effect. When iron load on GAC is 33.32 mg/g, microwave power is 720 W, and microwave irradiation is 30 min, the maximum removal rates of COD and NH_3 -N are 95.64% and 88.63% respectively. COD removal is largely due to oxidation, while NH_3 -N removal is largely due to flocculation and adsorption. Also, microwave has regeneration effect on GAC, which enhances the utilization rate of GAC.