Study on UV–Visible Spectra Characteristic of Dissolved Organic Matter during Municipal Solid Waste Composting

Li, Dan; He, Xiao Song; Xi, Bei Dou; Wei, Zi Min; Pan, Hong Wei; Cui, Dong Yu

doi:10.4028/www.scientific.net/amr.878.840

Cited by 11 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MSW treatment, Cs 4 with EM and cow dung slurry shows the highest protein degradation. Li et al (2014) reported similar increase in the values from Data are mean ± SD (n = 3). Values followed by the same letter(s) in a column are not significantly different at P < 0.05 tested with Duncan's Multiple Range Test (DMRT)…”

Section: Uv-vis Spectroscopic Analysissupporting

confidence: 59%

Additive effect of cow dung slurry and cellulolytic bacterial inoculation on humic fractions during composting of municipal solid waste

Rastogi

Nandal

Nain

2019

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

Purpose The work aimed to investigate the effect of cow dung and cellulolytic bacteria on humic characteristics during municipal solid waste composting. Four Bacillus isolates (B. subtilis, B. tequilensis, B. venezuelans and B. amyloliquefaciens) sourced from dumpsite soil were formulated as consortium for the study. Methods Four treatments were considered with addition of bulking agents (ratio 1:7:6) to 15 kg MSW. Treatment Cs 1 (control): only MSW, Cs 2 : MSW + cellulolytic bacterial inoculum @ 5 ml (2 × 10 9 CFU ml −1); Cs 3-MSW + cow dung slurry @ 1 kg (1:100 based on wet weight) and Cs 4-MSW + cellulolytic bacterial inoculum @ 5 ml (2 × 10 9 CFU ml −1) + cow dung slurry @ 1 kg (diluted 1:100 based on wet weight). The analyses of humic acids were done by elemental analyzer, UV and Fourier transform infrared spectroscopy during 90 days of composting. Results MSW amended with consortia of effective microorganisms and cow dung slurry projected highest humification degree at 82.4% (P < 0.01). Highest temperature (63 °C) was recorded in the treatment Cs 4 during composting. The data corresponded to an increase in H/C ratio (0.9%) with a decrease in C/N (14.8%) and O/C ratio (0.5%). In addition, most stabilized values for E 4 /E 6 ratio (4.1) and E 2 /E 3 ratio (2.1) were observed in Cs 4. The humification indices manifest positive regression values (F (4, 1) = 0.007; P < 0.01) and 99% significant model. Conclusion In the study, bio-augmentation (bacterial consortia and cow dung slurry) to MSW composting facilitates early maturity compared to other inoculated/uninoculated treatments. The result substantiates the effect of temperature on the humification rate of composting.

show abstract

Section: Uv-vis Spectroscopic Analysissupporting

confidence: 59%

Additive effect of cow dung slurry and cellulolytic bacterial inoculation on humic fractions during composting of municipal solid waste

Rastogi

Nandal

Nain

2019

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

show abstract

“…In the UV-Visible spectrum of LFD-III peaks were observed at 209, 211 nm. The above UV-Vis spectrum lacks any strong aromatic chromophores [21].…”

Section: Uv-visible Spectral Studiesmentioning

confidence: 99%

Pyrethrin Type Compounds from the Municipal Solid Waste Ghazipur Landfill Inert Soil as Brain and Cancer 5-HT Receptor Binding Agents

Thakur,

Eswaran

2023

Recent Prog Mater

View full text Add to dashboard Cite

The Inert soil obtained from the Ghazipur Municipal Solid Waste landfill located in East Delhi, India has been used as the starting material for the work described in this paper. This mountain-like monster is often in the news for its bad smell, pollution of the groundwater in the area from its leachates, and the occasional fires in it endangering the lives of the people living nearby. Landfills produce many greenhouse gases (CO2, CH4, CO, HCHO, H2S, and NH3) which are poisonous and cause environmental pollution in the surrounding areas. Our work sought alternative uses for this waste material (“Waste to Wealth”). These studies could lead to a cleaner environment, lower carbon footprints, diminished global warming, and positively impact climate change. These are very hot topics being discussed under the sustainable development goals and COP-28 urging, in particular, the developed world to reduce their carbon footprints and to create a global fund to mitigate the climate crisis in underdeveloped countries caused by climate change. Four new Pyrethrin-like compounds have been isolated and characterized spectroscopically [using UV-visible, FT-IR, NMR spectroscopy (1H-NMR spectroscopy), Mass Spectrometry, and Scanning Electron Microscopy (SEM)]. The new compounds possess a cyclopropane ring substituted on one side by a 4-methoxy-3-oxo-pyruvate unit and on the other side by an N-formyl-amino acid unit. The presence of pyrethrin-like cyclopropane structures indicates possible insecticidal activities like natural pyrethrins. The N-formyl amino acid could be an important factor in their bioactivity. Computational studies using the software Chem J. predict antibacterial, and anti-inflammatory activities with an IC50 value of 8.720.

show abstract

“…During their evaluation of the concentration and composition of DOC in runoff from cropland (corn) receiving poultry manure, Singh and Inamdar (2014) reported that runoff DOC immediately following poultry manure application has a low SUVA 254 thus low aromaticity. Similarly, Li et al (2014) evaluated multiple UV-Vis parameters of DOC during municipal solid waste composting. Among all parameters, they found that the values of Area 200~226 , Area 226~400 , and Slope 275~295 reflect the compost maturity best.…”

Section: Ultraviolet-visible Spectroscopy In Dissolved Organic Carbonmentioning

confidence: 99%

Characteristics of Dissolved Organic Carbon Revealed by Ultraviolet-Visible Absorbance and Fluorescence Spectroscopy: The Current Status and Future Exploration

Zhang

2015

Labile Organic Matter-Chemical Compositions, Function, and Significance in Soil and the Environment

View full text Add to dashboard Cite

Dissolved organic carbon (DOC) is an important research subject for various disciplines. The objectives of this chapter are to review and summarize recent advancement in ultraviolet-visible (UV-Vis) and fluorescence spectroscopies and to identify the information gaps for future research. The search for causes of rising DOC in rivers and lakes in Europe and North America has led to no exclusive conclusion, especially from DOC exported from arable land. More studies are still needed in this area. Most of UV-Vis and fluorescence methods developed in the past are still widely used in current studies in the literature, such as specific ultraviolet absorbance (SUVA), spectral slope for UV-Vis, and excitation and emission matrix (EEM), fluorescence indexes (i.e., FI, F eff ) for fluorescence spectroscopy. New methods have been developed and tested, such as ratio of tryptophan-like to fulvic-humic-like, self-organizing map and classification/ regression tree for EEM data analysis, and UV spectral deconvolution. Nevertheless, these new methods are tested in limited sites and studies. Critics on current fluorescence methods can also be found in the literature, such as quenching agents in DOC solutions and interaction of DOC fluorophores. Future research should include standardizing test conditions (e.g., pH, ionic strength, ion composition), as such parameters would affect fluorescence yield of DOC. In addition, new data analysis methods should be developed and tested.

show abstract

Study on UV–Visible Spectra Characteristic of Dissolved Organic Matter during Municipal Solid Waste Composting

Cited by 11 publications

References 25 publications

Additive effect of cow dung slurry and cellulolytic bacterial inoculation on humic fractions during composting of municipal solid waste

Additive effect of cow dung slurry and cellulolytic bacterial inoculation on humic fractions during composting of municipal solid waste

Pyrethrin Type Compounds from the Municipal Solid Waste Ghazipur Landfill Inert Soil as Brain and Cancer 5-HT Receptor Binding Agents

Characteristics of Dissolved Organic Carbon Revealed by Ultraviolet-Visible Absorbance and Fluorescence Spectroscopy: The Current Status and Future Exploration

Contact Info

Product

Resources

About