CAJ | 학술논문

该文探讨了3种氧化剂（臭氧、高锰酸钾和次氯酸钠）对微囊藻毒素 LR（MC LR）的降解效果，并研究了氧化剂处理铜绿微囊藻过程中对MC LR的释放及其降解特性。结果表明3种氧化剂均可有效降解 MC LR。氧化处理铜绿微囊藻时，在臭氧投加速率为0．41 mg ／ L·min、氧化反应5 min和高锰酸钾投加量为2 mg ／ L、氧化反应5～8 min的条件下，均可将水中的 MC LR去除完全；此外，3种氧化剂处理含藻水的同时，可引起胞内藻毒素不同程度的释放，其中次氯酸钠处理含藻水将严重破坏藻细胞，致使产生大量的、常规水处理工艺无法有效去除的胞外溶解性MC LR，导致饮用水水质存在安全隐患。
해문탐토료3충양화제（취양、고맹산갑화차록산납）대미낭조독소 LR（MC LR）적강해효과，병연구료양화제처리동록미낭조과정중대MC LR적석방급기강해특성。결과표명3충양화제균가유효강해 MC LR。양화처리동록미낭조시，재취양투가속솔위0．41 mg ／ L·min、양화반응5 min화고맹산갑투가량위2 mg ／ L、양화반응5～8 min적조건하，균가장수중적 MC LR거제완전；차외，3충양화제처리함조수적동시，가인기포내조독소불동정도적석방，기중차록산납처리함조수장엄중파배조세포，치사산생대량적、상규수처리공예무법유효거제적포외용해성MC LR，도치음용수수질존재안전은환。
The degradation of microcystin-LR by three different kinds of chemical oxidants (ozone,potassium permanganate and sodium hypochlorite)was discussed in this paper. Meanwhile,both effects of oxidants on release and degradation characteristics of microcystin-LR were also elaborated in algae removal process. The results show that three kinds of oxidants can effectively remove microcystin-LR. When ozone feed rate is 0. 41 mg / L·min and reaction time is 5 min or when dosage of potassium permanganate is 2 mg / L and reaction time is 5 ~ 8 min during the oxidation treatment process of microcystis aeruginosa,microcystin-LR in water can be completely removed. In addition,when three kinds of oxidants treat water containing algae,a certain amount of intracellular microcystins releases into the water,and sodium hypochlorite can seriously damage the cells of algae,resulting in generating a large amount of extracellular dissolved microcystin-LR that is removed ineffectively by conventional water treatment processes and causes security risks of drinking water.