Removal of nutrients and heavy metals from wastewater with mangrove Sonneratia apetala Buch-Ham |
| |
Authors: | Jia-En Zhang Jin-Ling Liu Ying Ouyang Bao-Wen Liao Ben-Liang Zhao |
| |
Institution: | 1. Department of Biotechnology and Medical Engineering, NIT Rourkela, Rourkela 769008, Odisha, India;2. Department of Biotechnology, AMIT College, Khurda 752057, Odisha, India;3. AMITY Institute of Wildlife Science, Noida 201303, Uttar Pradesh, India;4. Research Institute of Biotechnology & Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Gyeonggi-do 10326, Republic of Korea;5. Department of Biotechnology, North Orissa University, Baripada 757003, Odisha, India;1. Nong Lam University, Ho Chi Minh City, Vietnam;2. National University Ho Chi Minh City, Institute for Environment and Resources, Vietnam;3. Braunschweig University of Technology, Institute of Geoecology, Germany |
| |
Abstract: | Mangrove wetlands are important in the removal of nutrients, heavy metals, and organic pollutants from wastewater within estuarine systems due to the presence of oxidized and reduced conditions, periodic flooding by incoming and outgoing tides, and high clay and organic matter content. This study investigated the removal efficiency of nutrients and heavy metals from wastewater by the mangrove Sonneratia apetala Buch-Ham in a simulated wetland. Eight different treatments, namely, three concentration levels of wastewaters, with and without planting of the mangrove species, and one control (with salted water) each for both with and without planting of the mangrove species, were employed in this study. Results showed that the amounts of total mangrove biomass from different treatments were in the following order: PL-TW (planted with ten times higher-than-normal wastewater concentration) > PL-FW (planted with five times higher-than-normal wastewater concentration) > PL-SW (planted with normal wastewater concentration) > PL-NW (planted with no wastewater), whereas the magnitude of the heavy metal contents in the biomass was in the following order: Cu > Pb > Cd > Zn. Very good linear correlations existed between the biomass and the nutrients or heavy metals. The Sonneratia apetala Buch-Ham species had its own selectivity for uptake of heavy metals regardless of the initial heavy metal contents and was more effective in the removal of nutrients than heavy metals. Our study suggested that mangrove wetlands with Sonneratia apetala Buch-Ham species had great potential for the removal of nutrients and heavy metals in coastal areas. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|