ORIGINAL RESEARCH
Effects of a Combined Biological Restoration
Technology on Nitrogen and Phosphorus Removal
from Eutrophic Water
| 1 | State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology,
Chinese Academy of Sciences, Wuhan, China |
| 2 | University of Chinese Academy of Sciences, Beijing, China |
CORRESPONDING AUTHOR
Feng He
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan, Hubei Province, 430072 Wuhan, China
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan, Hubei Province, 430072 Wuhan, China
Submission date: 2017-08-02
Final revision date: 2017-09-21
Acceptance date: 2017-09-21
Online publication date: 2018-04-27
Publication date: 2018-05-30
Pol. J. Environ. Stud. 2018;27(5):2293–2301
KEYWORDS
TOPICS
ABSTRACT
For this study we applied a biological restoration technology combined with introducing filterfeeding
bivalves (Hyriopsis cumingii), stocking planktivorous fish (silver carp), and replanting submerged
macrophytes (Ceratophyllum demersum L.) in order to treat eutrophic water. The effects of this combined
biological restoration measure on remedying eutrophic water were investigated, and the main mechanisms
of this combined measure for nutrient transportation and transformation were revealed. The results showed
this combined biological restoration measure effectively reduced nutrient nitrogen (N) and phosphorus
(P) loads in the water. The assimilation and absorption of submerged macrophytes and the nutrient
transformation from water to the sediments were the main mechanisms for water N and P removal. In
conclusion, the combination of different biological restoration measures may be a potential choice for
water managers in eutrophic water restoration.
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