CAJ | 학술논문

为明确催化臭氧氧化控制溴酸盐效能的稳定性，通过连续流实验，考察了负载型氧化铈催化臭氧氧化在长期运行过程中对溴酸盐生成量的控制效能，并对催化柱的床层高度、进水流量、臭氧投加量等条件对控制溴酸盐生成量稳定性的影响进行了研究．结果表明：一年中不同时间、不同季节，连续流负载型氧化铈催化氧化柱均能有效控制溴酸盐的生成量，且运行效果稳定可靠；不同反应条件下(催化柱床层高度为150～750,mm，进水流量为50～400,mL/min，臭氧投量为5.43～12.42,mg/L)，催化臭氧氧化都能明显抑制溴酸盐的生成；建议的最佳反应条件为床层厚度600,mm、进水流量200,mL/min，臭氧投加量采用中、低臭氧投量．
위명학최화취양양화공제추산염효능적은정성，통과련속류실험，고찰료부재형양화시최화취양양화재장기운행과정중대추산염생성량적공제효능，병대최화주적상층고도、진수류량、취양투가량등조건대공제추산염생성량은정성적영향진행료연구．결과표명：일년중불동시간、불동계절，련속류부재형양화시최화양화주균능유효공제추산염적생성량，차운행효과은정가고；불동반응조건하(최화주상층고도위150～750,mm，진수류량위50～400,mL/min，취양투량위5.43～12.42,mg/L)，최화취양양화도능명현억제추산염적생성；건의적최가반응조건위상층후도600,mm、진수류량200,mL/min，취양투가량채용중、저취양투량．
The aim of this work was to investigate the stability of bromate minimization during the supported cerium oxide catalyzed ozonation(CeO2/O3)after long-term operation in continuous flow mode(CFM). Catalyst bed thickness,inlet flow rate and ozone dosage were further studied on their effect on minimizing bromate formation during CeO2/O3 oxidation in CFM. Results show that CeO2/O3 oxidation can significantly reduce bromate formation at different times and different seasons of the year,meanwhile the operation is stable and reliable during long-term op-eration. CeO2/O3 oxidation also could significantly reduce bromate formation at all conditions applied in this experi-ment(i. e.,catalyst bed thickness:150—750,mm,inlet flow rate:50—400,mL/min and ozone dosage:5.43—12.42 mg/L). The recommended optimum conditions are as follows:thickness of catalyst bed is 600,mm, inlet flow rate is 200,mL/min and the ozone dosage should be at low or medium level.