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Ramasamy, E. V.
- Cadmium Removal from Aqueous Solutions Using Macaranga peltata:A Potential Plant for Phytoremediation
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Authors
Affiliations
1 School of Environmental Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Athirampuzha, Kottayam, Kerala – 686 560, IN
1 School of Environmental Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Athirampuzha, Kottayam, Kerala – 686 560, IN
Source
South Indian Journal of Biological Sciences, Vol 2, No 1 (2016), Pagination: 103‐109Abstract
The concentration of heavy metals in the environment is increasing at an alarming rate due to the high rate of industrialisation and intensive agricultural practices over the past few decades. Since most of the heavy metals are persistent and toxic in nature, they significantly reduce agricultural productivity and pose severe threat to human beings through food chain contamination. In recent years, phytoremediation has gained considerable attention as a solar driven green technology for the removal of heavy metals. In the present study we examined the Cadmium (Cd) removal potential of Macaranga peltata - one of the woody species emerging in early successions ‐ found very common in Kerala. The experiment was conducted in batch mode for a period of 20 days in three different concentrations of Cd (0.5, 1.5, and 2.5 mg/L) in two different mediums (distilled water and 10% Hoagland nutrient solution). The percentage removals of Cd by M. peltata from three treatments in distilled water were 98, 93 and 89% respectively, where as in the case of Hoagland nutrient medium it was 90, 89 and 82% respectively. The results show higher removal efficiency in distilled water as compared to Hoagland nutrient medium. The analysis of the plants revealed that most of the Cd was accumulated in the ischolar_mains followed by stem and leaf. Cd accumulation also affected the chlorophyll content of the plant at higher concentrations. The study shows that M. peltata is a promising plant for the phytoremediation of Cd. Since most of the earlier studies on phytoremediation were carried out using smaller plants with less biomass production and growth rate, the use of M. peltata-one of the fastest growing tree species in the present study receives special attention.Keywords
Phytoremediation, Rhizofiltration, Wastewater Treatment, Heavy Metals, Cadmium.Full Text
References
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- Ignatius A, Arunbabu V, Neethu J, Ramasamy EV. (2014). Rhizofiltration of lead using an aromatic medicinal plant Plectranthus amboinicus cultured in a hydroponic Nutrient Film Technique (NFT) system. Environmental Science and Pollution Research, 21(22), 13007-13016.
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- Decontamination of Wastewater with Phytoremediation
Abstract Views :137 |
PDF Views:9
Authors
Affiliations
1 School of Environmental Sciences, Mahatma Gandhi University, Kottayam‐686 560, Kerala, IN
1 School of Environmental Sciences, Mahatma Gandhi University, Kottayam‐686 560, Kerala, IN
Source
South Indian Journal of Biological Sciences, Vol 2, No 1 (2016), Pagination: 84‐87Abstract
Waste is a misplaced resource. The municipal solid waste (MSW) or garbage being discarded in millions of tones in the country is undoubtedly a resource; similar is the case with millions of liters of wastewater of domestic origin as plenty of nutrients are being wasted by discharging the sewage without any treatment. Such kind of discharges leads to soil and water pollution which in turn necessitates the need suitable treatment processes which are generally energy and cost intensive. The urban sewage contain wastewater originating from all residential, commercial, market areas and also includes the surface run‐off and storm water. Biological removal of contaminants from the contaminated site is known as bioremediation. When plants are used to remove metals / contaminants from the soil or water the term 'Phytoremediation' is used, while algae are used for the same purpose in water medium then it is termed as 'Phycoremediation'.This report deals with the decontamination of wastewater with phytoremediation.Keywords
Waste Water, Biological Treatment, Phytoremediation.Full Text
References
- Arunbabu V, Sruthy S, Ignatius A, Ramasamy EV. (2015). Sustainable greywater management with Axonopus compressus (broadleaf carpet grass) planted in sub surface flow constructed wetlands. Journal of Water Process Engineering, 7, 153–160.
- Bindu T, Sumi MM, Ramasamy EV. (2010). Decontamination of water polluted by heavy metals with taro (Colocasia esculenta) cultured in a hydroponic NFT system. Environmentalist, 30(1), 35–44.
- Ignatius A, Arunbabu V, Neethu j, Ramasamy EV. (2014). Rhizofiltration of lead using an aromatic medicinal plant Plectranthus amboinicus cultured in a hydroponic nutrient film technique (NFT) system. Environ Science and Pollution Research, 21, 13007–13016.