Pressurized Microcystis can help to remove nitrate from eutrophic water
Pressurized Microcystis can help to remove nitrate from eutrophic water
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加压微囊藻有助于去除富营养化水中的硝酸盐
DOI：
10.1016/j.biortech.2017.07.015
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发表时间：
2018
影响因子：
11.4
通讯作者：
Pan Liping
中科院分区：
文献类型：
--
作者：
Huang Yingying;Chen Xuechu;Li Panpan;Chen Guiqin;Peng Lin;Pan Liping
本研究旨在探讨利用有害蓝藻微囊藻去除富营养化水体中硝酸盐的可行性。结果表明，微囊藻经0.4MPa加压处理后，迅速沉到水底;加压并没有显着影响微囊藻的生存能力，这种蓝藻保持高活力超过三天在黑暗/缺氧条件下。同时，微囊藻细胞分泌的溶解有机碳（DOC）达到2.48 mg C mg− 1 Chl a，并观察到加压微囊藻对沉积物-水界面硝酸盐的去除显著增强，比NOX−-N去除率提高了2.85倍。本研究结果支持了通过简单的加压措施将有害微囊藻转化为碳源以去除富营养化水体中硝酸盐的新想法。
The aim of this study was to investigate the feasibility of using harmful cyanobacteriumMicrocystisto help remove nitrate from eutrophic water. The results showed that after treatment by pressurization at 0.4 MPa,Microcystisquickly sank to the bottom. Pressurization did not significantly affect the viability ofMicrocystisand this cyanobacterium maintained high viability over three days under dark/anoxic conditions. Meanwhile, the amount of dissolved organic carbon (DOC) secreted from livingMicrocystiscells reached 2.48 mg C mg−1Chl a, and a significant enhancement of pressurizedMicrocystison nitrate removal at the sediment-water interface was observed, with a 2.85-fold increase in the specific NOX−-N removal rate. The results of this study support the novel idea that harmfulMicrocystiscould be converted to a carbon source for removing nitrate from eutrophic water by a simple pressurization measure.