Spectral characterization and quality assessment of organic compost for agricultural purposes

• Published in: International journal of recycling of organic waste in agriculture Vol. 8; no. 2; pp. 197 - 213
• Main Authors: Sharma, Anchal, Ganguly, Rajiv, Gupta, Ashok Kumar
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2019; Islamic Azad University, Isfahan (Khorasgan) Branch; Oxford International Collaboration Centre Press (OICC press)
• Subjects: Agrochemicals; Aquatic Pollution; Atomic absorption analysis; Atomic absorption spectroscopy; Atomic beam spectroscopy; Clean index; Compost; Composting; Composts; Earth and Environmental Science; Environment; Fertility; Fertility index; Fertilization; Fertilizers; Heavy metal; Heavy metals; Metal concentrations; Municipal solid waste; Municipal waste management; Organic chemistry; Organic farming; Organic wastes; Original Research; Quality assessment; Quality control; Scanning electron microscopy; Solid waste management; Solid wastes; Spectral analysis; Spectroscopy; Spectrum analysis; Waste Water Technology; Water Management; Water Pollution Control; Weight reduction; X ray spectra; X-ray diffraction; X-ray diffraction; Compost; Scanning electron microscopy; Fertility index; Clean index; Heavy metal
• ISSN: 2195-3228; 2251-7715
• DOI: 10.1007/s40093-018-0233-7

Purpose The study presents the physico-chemical, heavy metal and spectral characterization of aerobic compost to assess the suitability of its use for different purposes generated from two different municipal solid waste dumpsites located in the cities of Solan and Mandi in Himachal Pradesh. Methods The spectral characteristics of the compost material were determined using Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Diffraction (XRD) technique. The heavy metal analysis of compost material was analyzed through atomic absorption spectroscopy (AAS). The study also focused on the determination of the qualitative nature of compost by utilizing an indexing method based on Fertilizer Control Order (FCO) Standards. The utility of the compost was characterized on the values of ‘Fertility Index’ and ‘Clean Index’. Results The Fertility Index (FI) of compost for Solan and Mandi was observed 3.5 and 3.6, respectively, whereas Clean Index (CI) of compost for both regions was observed 4.0 and 5.0 at the 60th day of sampling, respectively, with the former being classified as category D and the second being classified as category A of high fertilizing potential. Conclusions The MSW compost of Solan cannot be used as fertilizer due to its low fertilizing potential. The heavy metal concentration for the study regions has been found within the permissible limits of the fertility control order standards. It is concluded from the study that aerobic composting is a suitable option for processing of waste as well as it can reduce the weight of organic waste in the dumpsite.