Physico-chemical characterization of municipal solid waste from Tricity region of Northern India: a case study

Rana, Rishi; Ganguly, Rajiv; Gupta, Ashok Kumar

doi:10.1007/s10163-017-0615-3

Cited by 68 publications

(17 citation statements)

References 33 publications

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“…However, at later stages the dehydrogenase activity drastically declined for both summer and winter treatments. From previous study, this decline is related to decrease in pH, organic substrate concentration and increased release of phytotoxic compounds when mineralization is achieved during composting [33], which was in agreement with our results.…”

Section: Resultssupporting

confidence: 93%

Seasonal variation induced stability of municipal solid waste compost: an enzyme kinetics study

2019

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An investigation was carried out in laboratory to find out the effect of ambient temperature and different treatments on passive bin composting of municipal solid waste (MSW). A potent cellulase degrading inoculum (Bacillus subtilis, B. amyloliquefaciens, B. nakamurai and B. velezensis) sourced from dumpsite soil and cow dung slurry was used as addon to MSW composters. Treatments were tested during summer (26-45 °C) and winter (5-22 °C) season to profile the physiochemical, enzymatic and microbial changes during 90-day study. In addition, a kinetics model for MSW composting was derived for the rate of organic load degradation deducing the first order kinetics rate (K r), limiting velocity (K m) and dissociation constant (K d). The results of the present investigation revealed that ambient temperature hastened the degradation of organic substrates in case of MSW amended with microbes and cow dung (60 days) as indicated by the achieved maximum kinetics reaction rate, 0.0131 day −1 (R 2 = 0.993) and reduced C/N ratio (11.6%). Also, enzymatic profiles; dehydrogenase (170.1 µg TPF g −1 day −1), cellulase (96.1 µg glucose g dwt −1 h −1) and urease (539.1 μg NH 4 +-Ng dwt −1 h −1) with a high temperature profile (47-63 °C) in the finished summer compost, Cs 4 supported the results. Whereas, winter composting could not attain the desired results and produced immature compost even after 90 days. Statistical analysis (proximal cluster analysis, hierarchical cluster analysis and ANOVA) and kinetics study showed that ambient temperature in collaboration with addons significantly influenced the compost maturity.

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Section: Resultssupporting

confidence: 93%

Seasonal variation induced stability of municipal solid waste compost: an enzyme kinetics study

2019

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“…The waste generated is heterogenous in nature making the determination of various components more of a complex procedure. Therefore, random sampling procedure is adopted for physical characterization [2,32]. The results from characterisation of waste showed that the organic component in waste is higher and mainly composed of kitchen, food and vegetable waste ( Table 2).…”

Section: Results and Discussion A)mentioning

confidence: 99%

Effect of Municipal Solid Waste Disposal on the Engineering Properties of Soil from a Non-Engineered Landfill

Thakur¹,

Gupta*²,

Ganguly³

2019

IJITEE

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The presents study showed the effect of open dumping on soil characteristics and biodegradation settlement analysis of soil in non-engineered landfill. The contaminated soil is referred to as waste soil which has different settlement rates due to the various categories and complex characteristics of waste. The degradation of waste causing percolation of leachate into soil affecting the strength and stability of soil. This paper includes the analysis of geotechnical properties and settlement analysis of waste soil and its comparison was done with natural soil. The geochemical analysis was carried out by Energy Dispersive X- Ray Spectroscopy (EDX) and Scanning Electron Microscopy (SEM). The elemental analysis of soil exhibited presence of high oxygen and silica content in uncontaminated soil. The analysis depicted that specific gravity, maximum dry density (MDD), permeability and California bearing ratio (CBR) showed decreasing trend variation for polluted soil. It was observed that cohesion for contaminated soil was found to be increased thereby increasing the shear strength of soil. Additionally, temperature, pH and moisture content hold a significant position for assessing the settlement. The settlement of soil due to biodegradation of MSW is estimated using empirical mathematical model for dump site depending upon pH, moisture content and temperature. Additionally, settlement is evaluated keeping in view the settlement due to biodegradation of MSW on soil, which further helped in determination of the suitability of the site for the construction and other recreational purposes.

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“…The variation in the waste fraction mainly depends on the economic condition of the city (Sarkar and Chourasia 2017). Presently, the rate of MSW generation in India varies from 0.2 to 0.87 kg per capita per day (Kumar and Goel 2009;Rana et al 2018) varying from rural to urban locations and this is expected to increase further for urban areas. The management of municipal solid waste generated in most of the Indian cities is a problematic issue with slightly better management practices in Metro and Tier-I cities due to slightly increased resources.…”

Section: Introductionmentioning

confidence: 99%

“…The characterization of municipal solid waste is an important feature in determining suitable waste management practices in the studies. In principle, the reported literature for characterization of waste in Indian cities reveal a high proportion of biodegradable organics followed by paper and inert (Rana et al 2018;Hancs et al 2011;Gomez et al 2008). For example, it has been reported that the maximum percentage by weight of components in Indian metro cities is organic waste (41%), paper (6%), plastic (4%), glass (2%), metal (2%), textile (4%), leather (1%) and inert (40%) (Sharholy et al 2008) which has also been corroborated in separate other studies reporting that MSW generated in Indian context consists of 45-60% organic matter, 6-10% recyclables, and the rest as inert matter (Kumar et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Spectral characterization and quality assessment of organic compost for agricultural purposes

Sharma

Ganguly

Gupta

2018

Int J Recycl Org Waste Agricult

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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.

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Physico-chemical characterization of municipal solid waste from Tricity region of Northern India: a case study

Cited by 68 publications

References 33 publications

Seasonal variation induced stability of municipal solid waste compost: an enzyme kinetics study

Seasonal variation induced stability of municipal solid waste compost: an enzyme kinetics study

Effect of Municipal Solid Waste Disposal on the Engineering Properties of Soil from a Non-Engineered Landfill

Spectral characterization and quality assessment of organic compost for agricultural purposes

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