Taheri Soudejani, H., Heidarpour, M., Shayannejad, M., Kazemian, H., Shariatmadari, H., Afuni, M. (2019). Improving Quality of Municipal Solid Waste Compost through Mg-Modified Zeolite. , 21(3), 747-760.
H. Taheri Soudejani; M. Heidarpour; M. Shayannejad; H. Kazemian; H. Shariatmadari; M. Afuni. "Improving Quality of Municipal Solid Waste Compost through Mg-Modified Zeolite". , 21, 3, 2019, 747-760.
Taheri Soudejani, H., Heidarpour, M., Shayannejad, M., Kazemian, H., Shariatmadari, H., Afuni, M. (2019). 'Improving Quality of Municipal Solid Waste Compost through Mg-Modified Zeolite', , 21(3), pp. 747-760.
Taheri Soudejani, H., Heidarpour, M., Shayannejad, M., Kazemian, H., Shariatmadari, H., Afuni, M. Improving Quality of Municipal Solid Waste Compost through Mg-Modified Zeolite. , 2019; 21(3): 747-760.

Improving Quality of Municipal Solid Waste Compost through Mg-Modified Zeolite

Journal of Agricultural Science and Technology
Article 19, Volume 21, Issue 3, 2019, Pages 747-760    PDF (757.25 K)
Authors
H. Taheri Soudejani1; M. Heidarpour1; M. Shayannejad* 1; H. Kazemian2; H. Shariatmadari2; M. Afuni3
1Department of Water Engineering, Faculty of Agriculture, Isfahan University of Technology, Isfahan, Islamic Republic of Iran.
2Northern Analytical Lab Services (NALS), University of Northern British Columbia (UNBC), Prince George, Canada.
3Department of Soil Science, Faculty of Agriculture, Isfahan University of Technology, Isfahan, Islamic Republic of Iran.
Abstract
Developing materials to improve the efficiency of fertilizers and increase their performance is one of the main areas of research in the agricultural science. To the best of our knowledge, this is the first time that Mg-modified zeolite is used for modification of composting process of urban organic solid waste. Natural zeolite was clinoptilolite with a particle size smaller than 250 μm modified with MgCl2.6H2O salt. Different ratios (i.e. 5, 10, and 15% , on a weight basis) of natural and/or Mg-modified zeolite were used to modify the Municipal Solid Waste (MSW) compost. Experimental results revealed that the pH of the final compost product with the Mg-modified zeolite was effectively buffered at 7.7. Furthermore, in comparison to the control treatment (without zeolite), the compost with natural and Mg-modified zeolite showed 32.13 and 41.25% reduction in electrical conductivity, respectively. Ammonium retention of the compost containing 15% natural and Mg-modified zeolite was increased by 64.51 and 110.10%, respectively. Metals mobility test of the matured composts also revealed that adding zeolite, especially the Mg-modified zeolite, could decrease the mobility of Cu, Pb, Zn, Fe, Ni, and Mn metals. The most decrease in the mobility of metals was observed in Cu, which was about 44.16 and 47.82%, in the compost with the natural and Mg-modified zeolite, respectively.
Keywords
Ammonium retention; Composting; Conductivity reduction; instead of Composting; Metals mobility
References
Statistics
Article View: 272
PDF Download: 95
Statistics
Number of Journals45
Number of Issues2,171
Number of Articles24,674
Article View24,443,753
PDF Download17,553,707