CAJ | 학술논문

利用化学催化对氮污染地下水进行修复，研究了化学催化载体-自制活性催化固体颗粒载体在停留时间（HRT）、pH、进水水质不同的条件下脱氮效能及脱氮机理，建立了脱氮反应动力学模型，提出了化学催化载体脱除地下水中硝酸盐氮的反应为三级反应，且水中氨氮初始浓度对硝酸盐氮的还原有抑制作用。试验结果表明：当HRT为2 h，在酸性、中性和碱性条件下，硝酸盐氮去除率均可达到90%左右；与一般铁碳微电解和零价铁脱氮相比，反应更为迅速，且不需调节pH。
이용화학최화대담오염지하수진행수복，연구료화학최화재체-자제활성최화고체과립재체재정류시간（HRT）、pH、진수수질불동적조건하탈담효능급탈담궤리，건립료탈담반응동역학모형，제출료화학최화재체탈제지하수중초산염담적반응위삼급반응，차수중안담초시농도대초산염담적환원유억제작용。시험결과표명：당HRT위2 h，재산성、중성화감성조건하，초산염담거제솔균가체도90%좌우；여일반철탄미전해화령개철탈담상비，반응경위신속，차불수조절pH。
In this paper, the nitrogen removal efficiency and mechanism by the chemical catalytic particle carrier, i.e., the self-made active catalytic solid particle carrier and its influence factors such as HRT, initial pH and the quality of influent were studied and analyzed. The reaction kinetic model was established. The result showed that the nitrogen removal by self-made carrier is 3 order reaction and the initial concentration of ammonia in water had inhibitory effect on the reaction. Nitrogen removal rate reached 88.7%when HRT was 2 h, and was up to 90%no matter in acidic, neutral or alkaline conditions. Compared to normal zero-value iron or ferric carbon micro electrolysis, the chemical catalysis particle carrier was more efficient and had no particular requirement on influent pH.