Nutrient and heavy metal removal capacity of Pistia Stratiotes L. from a freshwater wetland at Kelaniya
| dc.contributor.author | Surendranathan, Elanganathan | |
| dc.date.accessioned | 2024-11-07T09:06:02Z | |
| dc.date.available | 2024-11-07T09:06:02Z | |
| dc.date.issued | 2004 | |
| dc.description.abstract | Performance of Pistia stratiotes collected from Iriyawetiya wetland at Kelaniya, in removing nitrite, nitrate, phosphate and heavy metals, chromium, copper, lead and cadmium was monitored for a period of eight weeks from April to June 2003. Three (plastic) experimental tanks (replicated) and a control tank kept insidea polythene tunnel were used for the purpose within eight weeks. Pistia stratiotes was able to remove 61.05% of the chromium, 52% of copper, 57.16% of lead and 63.66% of cadmium present in the water collected from the middle portion of Iriyawetiya wetland. Also removed 19% of nitrite, 60% of nitrate and 87% of phosphate present in wetland water, indicating that Pistia stratiotes is a potential candidate species for bioremediation. The plants retained more heavy metals, in roots i.e. 0.09 g/kg/day of chromium, 0.01 g/kg /day of copper, 0.094 g/kg/day of lead and 0.01g/kg of cadmium than in the shoots, i.e. 0.005 g/kg/day of chromium, 0.003 g/kg/day of copper, 0.008 g/kg/day of lead and 0.001 g/kg/day of cadmium. | |
| dc.identifier.uri | https://ir.lib.pdn.ac.lk/handle/20.500.14444/3328 | |
| dc.language.iso | en_US | |
| dc.publisher | University of Peradeniya | |
| dc.subject | Environmental science | |
| dc.subject | Fresh water | |
| dc.subject | Wetland | |
| dc.subject | Heavy metals | |
| dc.title | Nutrient and heavy metal removal capacity of Pistia Stratiotes L. from a freshwater wetland at Kelaniya | |
| dc.type | Thesis |