Assessing landfill leachate heavy metal effect on the surface water quality: A case of Gheshlagh River, Sanandaj City, Iran

Document Type: Original Article

Authors

1 Department of Natural Resources and Environment, Islamic Azad University, Science and Research Branch, Hamedan, Iran

2 Department of Environment, School of Technology, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran

3 Kurdistan Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran

Abstract

Pollution resulted from the leachate of the Sanandaj City landfill into Gheshlagh River is an important environmental and health issue, which has endangered the river. Having a population of more than 400,000 and four municipality districts, the solid waste generation rate is approximately more than 300 tons/day in Sanandaj City. The wastes generated are disposed of at the Sanandaj City landfill with an area of approximately 35 hectares located on the off-road at the Sanandaj-Kamyaran highway. The leachate formed is discharged into the Gheshlagh River through seasonal Kilak River during the succulence (winter and spring) seasons due to the un-sanitary conditions of the landfill. In this study, we investigated the effects of the heavy metals (mercury [Hg], lead [Pb], zinc [Zn], and copper [Cu]) existing in the leachate on the Gheshlagh River and its autopurification capacity. For this purpose, we selected five stations and performed random sampling during two above-mentioned seasons and analyzed the samples. The data were analyzed using one-way analysis of variance and t-test. In general, our results showed that the concentration of the measured elements was more at the leachate confluence station compared with the control station. The mean concentration of the heavy metals in different sampling times and stations was observed in the order of Cu > Zn > Pb > Hg. However, the autopurification of the river resulted in statistical insignificancy of the data, except for Hg.  

Keywords


  1. Yang L, Chen Z, Liu T, Jiang J, Li B, Cao Y, et al. Ecological effects of cow manure compost on soils contaminated by landfill leachate. Ecological Indicators 2013; 32(0): 14-8.
  2. Xiaoli C, Yongxia H, Guixiang L, Xin Z, Youcai Z. Spectroscopic studies of the effect of aerobic conditions on the chemical characteristics of humic acid in landfill leachate and its implication for the environment. Chemosphere 2013; 91(7): 1058-63.
  3. Mangimbulude JC, van Breukelen BM, Krave AS, van Straalen NM, Roling WF. Seasonal dynamics in leachate hydrochemistry and natural attenuation in surface run-off water from a tropical landfill. Waste Manag 2009; 29(2): 829-38.
  4. Lopes DD, Silva SM, Fernandes F, Teixeira RS, Celligoi A, Dall'Antonia LH. Geophysical technique and groundwater monitoring to detect leachate contamination in the surrounding area of a landfill--Londrina (PR--Brazil). J Environ Manage 2012; 113: 481-7.
  5. Modin H, Persson KM, Andersson A, van PM. Removal of metals from landfill leachate by sorption to activated carbon, bone meal and iron fines. J Hazard Mater 2011; 189(3): 749-54.
  6. Richards RG, Mullins BJ. Using microalgae for combined lipid production and heavy metal removal from leachate. Ecological Modelling 2013; 249(0): 59-67.
  7. Wu J, Zhang H, He PJ, Shao LM. Insight into the heavy metal binding potential of dissolved organic matter in MSW leachate using EEM quenching combined with PARAFAC analysis. Water Res 2011; 45(4): 1711-9.
  8. Jensen DL, Ledin A, Christensen TH. Speciation of heavy metals in landfill-leachate polluted groundwater. Water Research 1999; 33(11): 2642-50.
  9. Mahananda MR, Mohanty BP, Behera NR. Physico-chemical analysis of surface and ground water of bargarh district, Orissa, India. International Journal of Research and Reviews in Applied Sciences 2010; 2(3): 284-95.
  10. Maqbool F, Bhatti ZA, Malik AH, Pervez A, Mahmood Q. Effect of Landfill Leachate on the Stream water Quality. Int J Environ Res 2011; 5(2): 491-500.
  11. Kamarudzaman AN, Aziz RA, Jalil FA. Removal of heavy metals from landfill leachate using horizontal and vertical subsurface flow constructed wetland planted with limnocharis flava. International Journal of Civil & Environmental Engineering 2011; 11(5): 85-91.
  12. Magombeyi MS, Nyengera R. The impact of municipal landfill on surface and ground water quality in Bulawayo, Zimbabwe. Journal of Environmental Science and Water Resources 2012; 1(10): 251-8.
  13. James SC. Metals in municipal landfill leachate and their health effects. Am J Public Health 1977; 67(5): 429-32.
  14. Watananugulkit R, Intim C, Patnukao P, Tansathit P. Assessment of impact on water quality of leachate at on-nuch disposal site center in Bangkok. J Sci Res Chul Univ 2003; 28(1): 97-110.
  15. Kar D, Sur P, Mandal SK, Saha T, Kole RK. Assessment of heavy metal pollution in surface water. International Journal of Enviornmental Science and Technology 2008; 5(1): 119-24.