International Journal of Environmental Protection          
An Open Access Journal
ISSN: 2226-6437(Print)      ISSN: 2224-7777(Online)
Frequency: Annually
Editorial-in-Chief: Prof. Kevin Mickus,
Missouri University of Science & Technology, USA.
Enhancing Cleanup of Heavy Metal Polluted Landfill Soils and Improving Soil Microbial Activity Using Green Technology with Ferrous Sulfate
Full Paper(PDF, 1666KB)
Abstract:
Landfills have led to some of the most intense battles over pollution that has ever been seen. With the population skyrocketing worldwide, these landfills will only become more of a public issue as time goes on. Heavy metals from several sources especially in landfills are an increasingly urgent problem because of its contribution to environmental deterioration and intensive degradation of soil microbial biodiversity. Despite the arguments over landfills in general, few or no effort was undertaken to clean up contamination of heavy metals in abandoned landfills. In our study new methods were proposed using a green technology or phytoremediation with ferrous sulfate in enhancing cleanup of heavy metal polluted landfill soils. Composite soil samples were collected near an open abandoned dump site in Cabanatuan City, Nueva Ecija, Philippines. Three rates of sulfur: 0, 40 and 80 mmol kg-1 as ferrous sulfate (26% S) was thoroughly mixed with the soil. Four healthy seedlings of mustard (Brassica juncea, L) were transplanted to each pot. Soil pH showed a decreasing trend for soils treated with 0 and 80 mmol kg-1 of sulfur (S) after 15 days (8.12 to 7.38) and after 25 days (8.56 to 7.78). Application of ferrous sulfate significantly enhanced microbial activities in contaminated soils. Average respiration rate in soil with 0 mmol kg-1 S was about 2.0 mg kg-1 CO2-C compared with 19.0 mg kg-1 CO2-C for soils amended with 80 mmol S kg-1. Although dry matter yield and uptake of heavy metals by mustard were somewhat variable with S application, solubility of copper (Cu), zinc (Zn) and manganese (Mn) in soils was significantly (p≤0.001) increased with S application. Our study has demonstrated the beneficial outcome of green technology in combination with ferrous sulfate in cleaning up heavy metals contamination in landfills and at the same time improving soil microbial biomass following phytoremediation.
Keywords:Landfills; Heavy Metals; Mustard; Ferrous Sulfate; Phytoremediation; Solubility; pH
Author: Gilbert C. Sigua1, Arnel Celestino2, Ronaldo T. Alberto3, Annie Melinda Paz-Alberto2, Kenneth C. Stone1
1.Department of Agriculture, Agricultural Research Service, Coastal Plains Soil, Water, and Plant Research Center, Florence, South Carolina, USA
2.Institute for Climate Change and Environmental Management, Department of Biological Sciences, College of Arts and Sciences, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines
3.Department of Crop Protection, College of Agriculture, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines
References:
  1. A. M. Paz-Alberto, and G. C. Sigua, “Phytoremediation: A green technology to remove environmental pollutants,” American Journal of Climate Change, vol. 2, pp. 71-86, 2013.
  2. A. M. Paz-Alberto, A. B. Celestino, and G. C. Sigua, “Phytoremediation of sediment lead in mangrove ecosystems,” Journal of Soils and Sediments, vol. 14(1), pp. 251-258, 2013.
  3. A. P. Alberto, A. P. De Dios, A. T. Alberto, and G. C. Sigua, “Assessing phytoremediation potentials of selected tropical plants for acrylamide,” Journal of Soils and Sediments, vol. 11, pp. 1190-1198, 2001.
  4. A. Paz-Alberto, G. C. Sigua, B. G. Baui, and J. A. Prudente, “Phytoextraction of lead-contaminated soil using vetiver grass (Vetiveria zizaniodes L), cogongrass (Imperata cylindrica L.) and carabaograss (Paspalum conjugatum L.),” ESPR- Environ. Sci. & Pollut. Res., vol. 14(7), pp. 505-509, 2008.
  5. R. B. Uera, A. M. Paz-Alberto, and G. C. Sigua, “Phytoremediation potential of selected tropical plants for ethidium bromide,” ESPR- Environ. Sci. & Pollut. Res., vol. 14(7), pp. 498-504, 2007.
  6. M. J. Blaylock, D. E. Salt, S. Duschenkov, O. Zakhabora, C. Gussman, and Y. Kapulnik, “Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents,” Environ. Sci. Technol., vol. 31, pp. 860-865, 1997.
  7. A. Chlopecka, J. R. Bacon, M. J. Wilson, and J. Kay, “Forms of cadmium, lead and zinc in contaminated soils from southwest Poland,” J. Environ. Qual., vol. 25, pp. 69-79, 1996.
  8. D. E. Salt, M. J. Blaylock, N. P. B. Kumar, V. Dushenkov, B. D. Ensly, and I. Chet, “A novel strategy for removal of toxic metals from the environment using plants,” Biotechnology, vol. 13, pp. 468-474, 1995.
  9. Y. Cui, Q. Wang, Y. Dong, H. Li, and P. Christie, “Enhanced uptake of soil Pb and Zn by Indian mustard and winter wheat following combined soil application of elemental sulfur and EDTA,” Plant & Soil, vol. 261(1-2), pp. 181-188, 2004.
  10. A. Kayser, K. Wenger, W. Attinger, H. R. Felix, S. K. Gupta, and R. Schulin, “Enhancement of phytoextraction of Zn, Cd, and Cu from calcareous soil: The use of NTA and sulfur amendments,” Environ. Sci. Technol., vol. 34, pp. 1778-1783, 2000.
  11. R. Tichy, J. Fajtl, S. Kuzel, and L. Kolar, “Use of elemental sulphur to enhance cadmium solubilization and its vegetative removal from contaminated soil,” Nutr. Cycl. Agroecosyst., vol. 46, pp. 249-255, 1997.
  12. SAS Institute, SAS/STAT User’s Guide, Release 6.03, SAS Institute, Cary, North Carolina, p. 494, 2000.
  13. J. J. Germida, and H. H. Janzen, “Factors affecting the oxidation of elemental sulfur in soils,” Fertilizer Res., vol. 35, pp. 101-114, 1993.
  14. P. Arnflak, S. A. Wasay, and S. Tokunaga, “A comparative study of Cd, Cr, Hg, and Pb uptake by minerals and soil minerals,” Water Air Soil Poll, vol. 87, pp. 131-148, 1996.
  15. G. Brummner, K. G. Tiller, U. Herms, and P. M. Clayton, “Adsorption-desorption and/or precipitation-dissolution processes of zinc in soils,” Geoderma, vol. 31, pp. 337-354, 1983.
  16. K. G. Tiller, J. Gerth, and G. Brummer, “The sorption of Cd, Zn, and Ni by soil clay fractions: procedures for partition of bound forms and their interpretation,” Geoderma, vol. 34, pp. 1-6, 1984.
  17. S. M. Mahmoud, S. M. Khaled, and S, Siam, “Effects of elemental sulfur on solubility of soil nutrients and soil heavy metals and their uptake of maize plants,” Journal of American Science, vol. 9, pp. 19-24, 2013.
  18. M. Kaya, Z. Kucukyumuk, and I. Erdal, “Effects of elemental sulfur and sulfur containing waste on nutrient concentrations and growth of bean and corn plants grown on calcareous soil,” African Journal of Biotechnology, vol. 8(18), pp. 4481-4489, 2010.
  19. A. Wallace, and G. A. Wallace, “Use of synthetic chelating agents in experimental and commercial nutrients solutions,” J. Plant Nutr., vol. 6, pp. 527-529, 1983.
  20. V. V. Athalye, V. Ramachandran, and T. J. D’Souza, “Influence of chelating agents on plant uptake of 51Cr, 210Pb and 210Po,” Environ. Pollut., vol. 89, pp. 47-53, 1995.
  21. B. H. Robinson, “The phytoextraction of heavy metals from metalliferous soils,” PhD. Thesis, Massey University, New Zealand, 1997.
  22. K. Wenger, A. Kayser, S. K. Gupta, G. Furrer, and R. Schulin, “Comparison of NTA and elemental sulfur as potential soil amendments in phytoremediation,” Soi and Sediment Contamination: An International Journal, vol. 11, pp. 655-672, 2002.
  23. Y. Zhao, X. Xiao, D. Bi, and F. Hu, “Effects of sulfur fertilization on soybean root, leaf traits and soil microbial activity,” Journal of Plant Nutrition, vol. 31, pp. 473-483, 2008.
  24. S. Zheng, J. Fan, and H. Hu, “The effects of different rates and forms of sulphur applied on soil microbial biomass and activity,” Journal of Food, Agriculture & Environment, vol. 9, pp. 898-906, 2011.