Feasibility assessment: application of ecological floating beds for polluted tidal river remediation
| Autor: | Zhaoran Li, Guoqiang Zhao, Yanqing Sheng, Jian Yang, Sun Shaoling |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental remediation
Nitrogen 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences chemistry.chemical_compound Rivers Ecotoxicology Tidal river Ammonium Total phosphorus Environmental Restoration and Remediation 0105 earth and related environmental sciences General Environmental Science geography Ecology Environmental engineering Phosphorus General Medicine Contamination Phosphate Pollution 020801 environmental engineering Salinity geography.body_of_water chemistry Environmental science Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental monitoring and assessment. 189(12) |
| ISSN: | 1573-2959 |
| Popis: | The remediation of polluted coastal rivers is a global challenge in the environmental field. The objective of this study was to investigate the remediation feasibility of a high-salinity river using water spinach (WS) and sticky rice (SR) in hydroponic floating-bed systems. In this study, the total nitrogen (TN) removal rates were 89.7, 92.3, 85.1, and 75.2% in the WS floating-bed system and 81.2 and 78.9% in the SR floating-bed system under different salinities (2–31 psu). Additionally, the total phosphorus (TP) removal rates were 94.4, 96.4, 93.5, and 75.2% in the WS floating-bed system and 75.7 and 80.0% in the SR floating-bed system under different salinities. The results indicate that WS and SR significantly contributed to the remediation of a polluted tidal river. Additionally, increased salinity suppressed the removal of ammonium and phosphate by WS and SR. The salt tolerance of WS was greater than that of SR, which indicated that WS was a more appropriate choice for treating river contamination. |
| Databáze: | OpenAIRE |
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