IJEP 42(6): 660-669 : Vol. 42 Issue. 6 (June 2022)
Lakireddy Balireddy College of Engineering, Department of Civil Engineering, Mylavaram-521 230, Andhra Pradesh, India
Ash pond is the term associated with thermal power plants where the ash is disposed of in a low lying area by mixing with water. The water percolates into the subsoil and ash after sun drying will be used for recycling purposes. The physico-chemical properties of groundwater are affected due to wet disposal. The groundwater samples collected from the surrounding villages near an ash pond of a thermal power station (TPS) near Vijayawada were investigated for possible contamination of groundwater. Total dissolved solids, total hardness and sulphates were found to be major quality parameters in the samples. The groundwater quality in majority of sampling locations is not suitable for drinking. Further, leaching studies were performed in laboratory to assess the variation of leaching properties from the ash with respect to time. The leachate was tested for selected physico-chemical parameters and analysed for their variation with time. It is found to have high TDS, turbidity and total hardness and confirmed that leaching is a slow process. A sample survey was conducted in all the villages where water samples were collected. It is noticed that the villagers are facing problems with the ash pond water contamination and dry ash rising into atmosphere. However, the local groundwater is helpful for irrigation purposes due to the low values of sodium absorption ratio and residual sodium carbonate index. The utility of flyash from ash pond was tested for its removal of fluoride. The results of treatability studies indicated that at low concentrations of adsorbent dose, a 70% removal of flouride from synthetic fluoride solution and 50% removal from field sample.
Ash pond, Leachate, Groundwater contamination, Health impacts, Flyash
- Raghuram, M. and V. Bhagyalakshmi. 2016. A study on groundwater quality in and around Kondapalli area. Int. J. Multidisciplinary Approach Studies. 3(3):54-62.
- Suresh, I.V., et al. 1998. Effect of pond ash on groundwater quality: A case study. Env. Manage. Health. 9(5):200-208.
- Chimpiriah, N., G. Sudhakar and V. Venkatar-athnam. 2017. Assessment of groundwater quality at Kondapalli industrial region. Int. Res. J. Eng. Tech., 4(3):2425-2429.
- Kumar, T. B., et al. 2016. Seasonal variations in physico-chemical characteristics of groundwater collected from Kondapalli Santhi Nagar near VTPs. Rasayan J. Chem., 9(4):858-863.
- IS 10500. 2012. Drinking water specification (2nd revision). Bureau of Indian Standards, New Delhi.
- Swarnalatha, G., et al. 2017. Assessment of groundwater quality at Kondapalli industrial region, Krishna district, andhra Pradesh, India. Int. Res. J. Eng. Tech., 4(3):2425-2429.
- Pujari, P. 2012. Assessment of impact of ash ponds on groundwater quality. Env. Earth Sci., 69 (7):1-14.
- Tamjid-Us-Sakib, et al. 2018. Water quality of coal ash pond and its impact on adjoining surface and groundwater systems. Ametrican J. Water Resour., 6(4):176-180.
- Nalawade, P.M., A.D. Bholay and M.B. Mule. 2012. Assessment of ground and surface water quality indices for heavy metals nearby area of parli thermal power plant. Universal J. Env. Res. Tech., 2(1):47-51.
- Kumar, P., et al. 2018. Heavy metal pollution assessment around Kota super power plant. Poll. Res., 37(3):145-153.
- Goswami, D. and A.K. Das. 2006. Removal of fluoride from drinking water using a modified flyash adsorbent. J. Sci. Ind. Res., 65(1).
- Chaturvedi, A.K., et al. 1990. Defluoridation of water by flyash. Water Air Soil Poll., 49:51-61.
- Totewad, N.D. and G. Gyananath. 2018. Removal of fluoride from groundwater sample using flyash as adsorbent. Int. J. Res. Anal. Review. 5(4):935-940.
- Hussain, M., F.I. Chavan and B. Abhale. 2015. Flyash and maize husk flyash as an adsorbent for removal of fluoride. Int. J. Sci. Eng. Appl. Sci., 1(8):208-214.
- Saxena, S., et al. 2012. Removal of fluoride from contaminated water using lime-slurry impregnated flyash. J. Ind. Poll. Cont.
- Mohapatra, M., et al. 2009. Review of fluoride removal from drinking water. J. Env. Manage., 91(1):67-77.
- Rashmi, U., et al. 2015. Studies on estimation of fluoride level and defluoridation of drinking water using agrowaste materials. Int. J. Plant Animal Env. Sci., 5(3):184-188.
- Vardhan, C.M.V. and J. Karthikeyan. 2011. Removal of fluoride from water using low-cost materials. Int. Water Tech. J., 1(2):1-12.
- APGENCO. AP Gence website. Available at: https://apgenco. gov.in/.
- Kondapalli. 2020. Kondapalli information. Available at: https://en.wikipedia.org/wiki/Kondapalli.
- Michaeal, A.M. 2008. Irrigation: Theory and practice (2nd edn). Vikas Publishing.
- CMSR. 2013. A report on CSR plan for Narla Tata Rao thermal power station under stage V of APGENCO, Krishna district, A.P. Centre for management and Social Research.
- Attarde, S., S. Marathe and A. Sil. 2014. Utilization of flyash in construction industries for environment management. Int. J. Env. Sci., 3(2):117-121.
- Soni, R. 2015. Removal of fluoride from drinking water using flyash after pre-treatment. J. Env. Anal. Toxicol., S7:004.