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| 改性粘土对球形棕囊藻的消除研究 |
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邱丽霞1,2,3,4, 俞志明1,2,3,4, 宋秀贤1,2,3,4, 贺立燕1,2,4, 曹西华1,2,4, 于志刚2,5
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1.中国科学院海洋生态与环境科学重点实验室 中国科学院海洋研究所 青岛 266071;2.青岛海洋科学与技术国家实验室 海洋生态与环境科学功能实验室 青岛 266071;3.中国科学院大学 北京 100049;4.中国科学院海洋大科学研究中心 青岛 266071;5.中国海洋大学 海洋化学理论与工程技术教育部重点实验室 青岛 266100
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| 摘要: |
| 球形棕囊藻（Phaeocystis globosa）暴发藻华时多以囊体形态出现，但迄今缺乏囊体消除方法研究。本文在球形棕囊藻藻华暴发水域取样进行实验，比较了原土及不同改性材料制备的改性粘土对囊型球形棕囊藻的消除效果，并考察了水体pH、溶解有机碳（DOC）、溶解无机磷（DIP）等在治理前后的变化。结果表明：粘土经表面改性后对球形棕囊藻消除能力明显提高，对囊体亦有一定破碎作用，且改性粘土浓度越高，其除藻破囊效果越好；在有效消除囊体细胞情况下，添加改性粘土对水体中pH及DOC含量影响较小，但可以导致DIP水平降低。 |
| 关键词: 改性粘土 球形棕囊藻 消除效率 囊体破碎 |
| DOI：10.11693/hyhz20180800201 |
| 分类号:X55 |
| 基金项目:国家重点研发计划，2017YFC1404300号；国家自然科学基金资助项目，41576119号；青岛海洋科学与技术国家实验室鳌山科技创新计划，2016ASKJ02-3号；青岛海洋科学与技术国家实验室鳌山人才计划资助，2017ASTCP-OS16号。 |
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| REMOVAL EFFICIENCY OF PHAEOCYSTIS GLOBOSA COLONIES WITH MODIFIED CLAYS |
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QIU Li-Xia1,2,3,4, YU Zhi-Ming1,2,3,4, SONG Xiu-Xian1,2,3,4, HE Li-Yan1,2,4, CAO Xi-Hua1,2,4, YU Zhi-Gang2,5
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1.CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2.Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;3.University of Chinese Academy of Sciences, Beijing 100049, China;4.Center for Ocean Mega-Science, Chinese Academy of Science, Qingdao 266071, China;5.Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
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| Abstract: |
| At present, removal of Phaeocystis globosa that presented in forms of colonies during harmful algal blooms remains to be explored. We compared the removal efficiencies of P. globosa with original clay and different modified clays (MC):MCⅠ, MCⅡ, and MCⅢ (see detail formulations in the text), and determined the changes of pH, dissolved organic carbon (DOC), and dissolved inorganic phosphorus (DIP). The results show that MC addition increased the removal efficiencies to P. globosa. The algal biomass removal efficiencies of original clay, MCⅠ, MCⅡ, and MCⅢ in dosage of 0.2g/L were 46.01%, 52.87%, 80.06%, and 99.57%, respectively. The experiment showed that P. globosa colonies were decolored and disrupted after MC addition. However, the MC addition showed no significant effect on the pH and DOC in the algae culture but reduced the DIP levels. |
| Key words: modified clay Phaeocystis globosa removal efficiency colony disruption |
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