Kumar Raushan, Thangaraju Mohan Manu, Kumar Manoj, Thul Sanjog Tarachand, Pandey Vimal Chandra, Yadav Swati, Singh Lal, Kumar Sunil
Department of Environmental Sciences, Central University of Jharkhand, Ranchi, Jharkhand, 835 205, India.
CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, Maharashtra, 440 020, India.
Environ Sci Pollut Res Int. 2021 Feb 27. doi: 10.1007/s11356-021-12995-7.
The present study entails the phytoremediation potential of different bamboo species on 5-year-old FA-dumped site near Koradi thermal power plant of Nagpur, Maharashtra, India. The selected FA-dumped site was treated with farmyard manure, press mud, and bio fertilizer followed by plantation of six promising species of bamboo namely Bambusa balcooa Roxb., Dendrocalamus stocksii (Munro.) M. Kumar, Remesh and Unnikrishnan, Bambusa bambos (L.) Voss, Bambusa wamin E.G. Camus, Bambusa vulgaris var. striata (Lodd. ex Lindl.) Gamble, and Bambusa vulgaris var. vittata Riviere and Riviere. The experimental results indicated that the organic input in the FA-dumped site nourished the soil by improving its physico-chemical, and biological characteristics. The results revealed the contamination of the site with different trace elements in varied quantity including Cr (89.29 mg kg), Zn (84.77 mg kg), Ni (28.84 mg kg), Cu (22.91 mg kg), Li (19.65 mg kg), Pb (13.47 mg kg), and Cd (2.35 mg kg). A drastic reduction in concentration of heavy metals in FA was observed after 1 year of bamboo plantation as compared to the initial condition. The results showed that bamboo species are good excluders of Ba, Co, Cr, Li, Ni, Mn, and Zn, whereas they are good accumulators of Cd, Pb, and Cu. The values of biochemical parameters, such as pH, total chlorophyll, ascorbic acid (AA), and relative water content of all the bamboo leaves ranged from 5.11-5.70, 1.56-6.33 mg g, 0.16-0.19 mg g, and 60.23-76.68%, respectively. It is thereby concluded that the bamboo plantation with biofertilizers and organic amendments may indicate adaptive response to environmental pollution on FA-dumped site.
本研究探讨了印度马哈拉施特拉邦那格浦尔科拉迪热电厂附近一个有5年历史的粉煤灰倾倒场中不同竹种的植物修复潜力。对选定的粉煤灰倾倒场施用农家肥、压榨泥和生物肥料，随后种植六种有前景的竹种，即印度竹（Bambusa balcooa Roxb.）、斯氏竹（Dendrocalamus stocksii (Munro.) M. Kumar, Remesh and Unnikrishnan）、巨龙竹（Bambusa bambos (L.) Voss）、倭竹（Bambusa wamin E.G. Camus）、花秆绿竹（Bambusa vulgaris var. striata (Lodd. ex Lindl.) Gamble）和黄金间碧玉竹（Bambusa vulgaris var. vittata Riviere and Riviere）。实验结果表明，粉煤灰倾倒场中的有机投入物通过改善土壤的物理化学和生物学特性来滋养土壤。结果显示该场地受到不同痕量元素的污染，含量各不相同，包括铬（89.29毫克/千克）、锌（84.77毫克/千克）、镍（28.84毫克/千克）、铜（22.91毫克/千克）、锂（19.65毫克/千克）、铅（13.47毫克/千克）和镉（2.35毫克/千克）。与初始状况相比，在种植竹子1年后观察到粉煤灰中重金属浓度大幅降低。结果表明，竹种是钡、钴、铬、锂、镍、锰和锌的良好排斥者，而它们是镉、铅和铜的良好富集者。所有竹叶的生化参数值，如pH值、总叶绿素、抗坏血酸（AA）和相对含水量，分别为5.11 - 5.70、1.56 - 6.33毫克/克、0.16 - 0.19毫克/克和60.23 - 76.68%。由此得出结论，使用生物肥料和有机改良剂进行竹林种植可能表明对粉煤灰倾倒场的环境污染具有适应性反应。
