CAJ | 학술논문

针对模拟水样中的腐殖酸，采用静态实验研究了在低声能密度0.028 W·ml-1条件下，单频超声（68、80、100、125和160 kHz）和双频复合超声（X-Y轴轴向正交超声：80/125 kHz和80/160 kHz；X-X轴轴向平行超声：68/100 kHz和125/160 kHz）在不同时间下对溶解性有机碳（DOC）和三卤甲烷前体物（THMFP）的去除效果。结果表明：在同一声能密度下，低频（68和80 kHz）对DOC和THMFP的去除效果比高频（100、125和160 kHz）下的去除效果好，双频复合超声的去除效果均优于单频超声，且X-Y轴轴向正交超声降解效能均优于X-X轴轴向平行超声。双频复合超声的X-Y轴轴向正交组合80/160 kHz超声25 min去除效果最好，其中DOC和THMFP去除率分别可达到32.6%和66.6%。
침대모의수양중적부식산，채용정태실험연구료재저성능밀도0.028 W·ml-1조건하，단빈초성（68、80、100、125화160 kHz）화쌍빈복합초성（X-Y축축향정교초성：80/125 kHz화80/160 kHz；X-X축축향평행초성：68/100 kHz화125/160 kHz）재불동시간하대용해성유궤탄（DOC）화삼서갑완전체물（THMFP）적거제효과。결과표명：재동일성능밀도하，저빈（68화80 kHz）대DOC화THMFP적거제효과비고빈（100、125화160 kHz）하적거제효과호，쌍빈복합초성적거제효과균우우단빈초성，차X-Y축축향정교초성강해효능균우우X-X축축향평행초성。쌍빈복합초성적X-Y축축향정교조합80/160 kHz초성25 min거제효과최호，기중DOC화THMFP거제솔분별가체도32.6%화66.6%。
To understand the degradation of humic acid in simulated water a series of static experiments assisted with ultrasound were done at various energy density of ultrasound produced by both single-frequency (68 kHz, 80 kHz, 100 kHz, 125 kHz and 160 kHz) and dual-frequency (X-Y axial orthogonal 80/125 kHz and 80/160 kHz and X-X axis parallel 68/100 kHz and 125/160 kHz) ultrasound irradiation system. The degradation of dissolved organic carbon (DOC) and trihalomathame precursors (THMFP) were measured. The main results obtained are as follows:for the same energy density of sound, the degradation efficiency is better for low frequency (68 kHz and 80 kHz) than for high frequency ultrasound (100 kHz, 125 kHz, and 160 kHz), dual-frequency is superior to single-frequency, and X-Y axial orthogonal ultrasound excels X-X axis parallel. The best result for degradation of COD and THMFP is obtained in 25 min by using X-Y axial orthogonal combination of 80/160 kHz ultrasound, and is 32.6%and 66.6%respectively.