ZHANG Yue,YAN Xiu qin,ZHAO Xin hua,et al.Reoxygenation and Decontamination Effect of Aquatic Plants under Different Levels of Environmental Factors[J].China Water & Wastewater,2018,34(21):64-69.
Click Copy

Reoxygenation and Decontamination Effect of Aquatic Plants under Different Levels of Environmental Factors

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 64-69 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0064-06
Author(s):
ZHANG Yue1; 2; YAN Xiu qin2; ZHAO Xin hua1; SUN Yong li2; LIU Yu2; ZHANG Wei2
(1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; 2. North China Municipal Engineering Design and Research Institute Co. Ltd., Tianjin 300074, China)
Keywords:
odorous water; aquatic plant; water reoxygenation; environmental factor
CLC:
TU992.3
Document code:
C
Abstract:
The effects of environmental factors on the aquatic plants reoxygenation are complicated. The influences of environmental factors (illumination, temperature, pH, and salinity) on the ability of aquatic plants to recover oxygen and remove pollutants were studied. With 80% light intensity (9 600 lx), Potamogeton crispus showed the highest reoxygenation capacity and the OE value reached 127×10-5. The reoxygenation capacity of black algae, duckweed, and cattail increased with the increase of the light intensity. High temperature inhibited the aquatic plants from restoring DO, therefore it was recommended to utilize mechanical aeration methods under summer temperatures. Aquatic plants could transport more oxygen to the water in a neutral environment. Within the pH gradient from 6.0 to 8.0, submergent and emergent plants were more efficient in the removal of TN, TP and COD comparing to floatingleaf plants. The reoxygenation capacity of aquatic plants decreased significantly with the increase of salinity. In high salinity water (0.8%), black algae, Potamogeton crispus, duckweed, and Nymphoides peltatum barely had any reoxygenation capacity. The purification capacity of the six aquatic plants for TN, TP and COD decreased as the salinity increased.

References:


［1］张列宇,王浩,李国文,等. 城市黑臭水体治理技术及其发展趋势［J］. 环境保护,2017,45(5):62-65.  Zhang Lieyu,Wang Hao,Li Guowen,et al. Management technology and development trend for urban black and odorous water body［J］. Environmental Protection,2017,45(5):62-65（in Chinese）.
［2］李骏飞,杨磊三,周炜峙. 海绵城市与黑臭水体治理共同建设途径探讨［J］. 中国给水排水,2016,32(24):35-38. Li Junfei,Yang Leisan,Zhou Weizhi. Discussion on common construction of sponge city and malodorous black river treatment project［J］. China Water & Wastewater,2016,32(24):35-38（in Chinese）.
［3］贺锋,吴振斌,陶菁,等. 复合垂直流人工湿地污水处理系统硝化与反硝化作用［J］. 环境科学,2005,26(1): 47-50.  He Feng,Wu Zhenbin,Tao Jing,et al. Nitrification and denitrification in the integrated vertical flow constructed wetlands［J］. Environmental Science,2005,26(1): 47-50（in Chinese）.
［4］Gagnon V,Chazarenc F,Comeau Y,et al. Influence of macrophyte species on microbial density and activity in constructed wetlands［J］. Water Sci Technol,2007,56(3):249-254.
［5］朱丹婷,乔宁宁,李铭红,等. 光强、温度、总氮浓度对黑藻生长的影响［J］. 水生生物学报,2011,35(1): 88-97. Zhu Danting,Qiao Ningning,Li Minghong,et al. Effect of light intensity,temperature,total nitrogen concentration and their interaction on Hydrilla verticillata［J］. Acta Hydrobiologica Sinica,2011,35(1):88-97（in Chinese）.
［6］成水平,吴振斌,夏宜琤. 水生植物的气体交换与输导代谢［J］. 水生生物学报,2003,27(4):413-417. Cheng Shuiping,Wu Zhenbin,Xia Yizheng. Review on gas exchange and transportation in macrophytes［J］. Acta Hydrobiologica Sinica,2003,27(4):413-417（in Chinese）.
［7］王圣瑞,金相灿,赵海超,等. 沉水植物黑藻对上覆水中各形态磷浓度的影响［J］. 地球化学,2006,35(2):179-186. Wang Shengrui,Jin Xiangcan,Zhao Haichao,et al. Effect of submerged plant Hydrilla verticillata on the concentrations of different phosphorus species in overlying water［J］. Geochimica,2006,35(2):179-186（in Chinese）.

Memo

基金项目：国家水体污染控制与治理科技重大专项(2017ZX07403001)
作者简介： 张岳（1987- ），男，山东聊城人，博士，高级工程师，从事水体污染生态治理技术研究。
E-mail:tjdxhjzy@tju.edu.cn
收稿日期：2018-05-12

Last Update: 2018-11-01