Statistical comparison of the accumulation of heavy metals in the form of net mass harvested in plant organs
الموضوعات :
1 -
الکلمات المفتاحية: accumulation, Straw, فلزات سنگین, نی, Heavy metals, انباشت, Net mass, Tifa, جرم خالص, تیفا,
ملخص المقالة :
Considering the role of plants in purifying sludge from heavy metals and also the amount of absorption of heavy metals from sludge by the underground and aerial organs of plants, the removal efficiency of copper, chromium, zinc, cadmium, nickel, and lead metals by natural systems contains two Reed and Tifa plant species were calculated. The removal efficiency was calculated based on the differences in the initial mass of heavy metals in the sludge, and the mass removed by the plants as the output mass from the system. The results showed that the difference in the accumulation rate of the net mass of heavy metals in the aerial parts of two plant species, Reed and Tifa, was significant in five of the six metals examined, and insignificant only in the case of nickel. In the case of three metals copper, chromium, and zinc, the difference between the aerial organs of two plant species was significant at the level of one percent, and in the case of cadmium and lead, the difference was significant at the level of five percent. Therefore, according to these differences and considering the difference between the mass removed by the underground organs and an estimate of the total mass removed of the investigated metal by the whole plant, it is possible to remove metals from the two investigated plants for phytoremediation purposes. studied and used in this research
Bragato, C., Brix, H. and Malagoli, M. (2006). Accumulation of nutrients and heavy metals in Phragmites australis (Cav.) Trin. ex Steudel and Bolboschoenus maritimus (L.) Palla in a constructed wetland of the Venice lagoon watershed. Environmental Pollution, 144 (3), pp: 967–975.
Maine, M.A., Suñe, N., Hadad, H. and Sanchez, G. (2007). Temporal and spatial variation of phosphate distribution in the sediment of a free water surface constructed wetland. Science of the Total Environment, 380 (1-3), pp: 75–83.
Obarska-Pempokowiak, H. and Klimkowska, K. (1999). Distribution of nutrients and heavy metals in a constructed wetland system. Chemosphere, 39 (2), pp: 303-/312.
Sasmaz, A., Obek, E. and Hasar, H. (2008). The accumulation of heavy metals in Typha latifolia L. grown in a stream carrying secondary effluent. Ecological Engineering Journal, 33 (3-4), pp: 278-284.
Stottmeister, U., Wiessner, A., Kuschk, P., Kappelmeyer, U., Kastner, M., Bederski, O., Muller, R.A. and Moormann, H. (2003). Effects of plants and microorganisms in constructed wetlands for wastewater treatment. Biotechnology Advances Journal, 22 (1-2), pp: 93-117.
Vymazal, J. (2009). The use of sub-surface constructed wetlands for wastewater treatment in the Czech Republic: 10 years experience. Ecological Engineering, 18 (5), pp: 633-646.
Wang, R., Korboulewsky, N., Prudent, P., Domeizel, M., Rolando, C. and Bonin, G. (2010). Feasibility of using an organic substrate in a wetland system treating sewage sludge: Impact of plant species. Bioresource Technology, 101 (1), pp: 51–57.
