Details
| Original language | English |
|---|---|
| Pages (from-to) | 29749-29765 |
| Number of pages | 17 |
| Journal | Environmental Science and Pollution Research |
| Volume | 27 |
| Issue number | 24 |
| Early online date | 21 Dec 2019 |
| Publication status | Published - Aug 2020 |
Abstract
India is one among the Asia’s newly industrialized countries, in which urban centres generate large amount of municipal solid wastes due to the rapid urbanization. To demonstrate urban waste potentials for biogas production by anaerobic digestion, a comprehensive analysis on the availability of organic waste hotspots and its biogas potential for the exemplary case of Chennai, India, was undertaken. The identified hotspots and their biogas potential were plotted with Geographical Information System as thematic maps. The results of biogas potential tests revealed strong variations in the biogas potentials of individual waste streams from 240.2 to 514.2 mLN/g oDM (organic dry matter) with oDM reduction in the range of 36.4–61.5 wt.-%. Major waste generation hotspots were identified from the surveyed urban bio-reserves and the biogas potentials within an effective area of 5 km radius surrounding the hotspot were estimated. It was found that the biogas potential of individual hotspots ranged between 38.0–5938.7 m3/day. Further results revealed that the biogas potential during anaerobic co-digestion, by considering nearby bio-reserves in the effective areas of major hotspots, with and without residential organic waste, ranged between 4110.4–18–106.1 m3/day and 253.2–5969.5 m3/day, originating from 144.0–620.0 tons and 3.1–170.5 tons, respectively. Despite variations in the composition of the wastes, the Carbon/Nitrogen ratio, oDM reduction, biogas production and substrate availability were improved during co-digestion of nearby bio-reserves within the major hotspots, thereby improving the prevailing barriers in substrate management during anaerobic digestion of wastes.
Keywords
- Biogas, Co-digestion, Hotspot, Municipal solid wastes, Organic wastes, Urban city
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Chemistry
- Environmental Science(all)
- Pollution
- Environmental Science(all)
- Health, Toxicology and Mutagenesis
Sustainable Development Goals
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In: Environmental Science and Pollution Research, Vol. 27, No. 24, 08.2020, p. 29749-29765.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Bio-reserves inventory
T2 - improving substrate management for anaerobic waste treatment in a fast-growing Indian urban city, Chennai
AU - Mozhiarasi, Velusamy
AU - Speier, Christopher Josef
AU - Michealammal, Benish Rose Pious
AU - Shrivastava, Runal
AU - Rajan, Balakumar
AU - Weichgrebe, Dirk
AU - Venkatachalam, Srinivasan Shanmugham
N1 - Funding Information: This work was supported by the German Federal Ministry of Education and Research (BMBF) and the Indian Department of Science and Technology (DST) under the Indo-German Science and Technology Centre (IGSTC) (Grant number 01DQ15007A) under the 2+2 Project ?RESERVES - Resource and energy reliability by co-digestion of veg-market and slaughterhouse waste?. The authors also thank the Director, CSIR-Central Leather Research Institute for providing support for this researchwork.
PY - 2020/8
Y1 - 2020/8
N2 - India is one among the Asia’s newly industrialized countries, in which urban centres generate large amount of municipal solid wastes due to the rapid urbanization. To demonstrate urban waste potentials for biogas production by anaerobic digestion, a comprehensive analysis on the availability of organic waste hotspots and its biogas potential for the exemplary case of Chennai, India, was undertaken. The identified hotspots and their biogas potential were plotted with Geographical Information System as thematic maps. The results of biogas potential tests revealed strong variations in the biogas potentials of individual waste streams from 240.2 to 514.2 mLN/g oDM (organic dry matter) with oDM reduction in the range of 36.4–61.5 wt.-%. Major waste generation hotspots were identified from the surveyed urban bio-reserves and the biogas potentials within an effective area of 5 km radius surrounding the hotspot were estimated. It was found that the biogas potential of individual hotspots ranged between 38.0–5938.7 m3/day. Further results revealed that the biogas potential during anaerobic co-digestion, by considering nearby bio-reserves in the effective areas of major hotspots, with and without residential organic waste, ranged between 4110.4–18–106.1 m3/day and 253.2–5969.5 m3/day, originating from 144.0–620.0 tons and 3.1–170.5 tons, respectively. Despite variations in the composition of the wastes, the Carbon/Nitrogen ratio, oDM reduction, biogas production and substrate availability were improved during co-digestion of nearby bio-reserves within the major hotspots, thereby improving the prevailing barriers in substrate management during anaerobic digestion of wastes.
AB - India is one among the Asia’s newly industrialized countries, in which urban centres generate large amount of municipal solid wastes due to the rapid urbanization. To demonstrate urban waste potentials for biogas production by anaerobic digestion, a comprehensive analysis on the availability of organic waste hotspots and its biogas potential for the exemplary case of Chennai, India, was undertaken. The identified hotspots and their biogas potential were plotted with Geographical Information System as thematic maps. The results of biogas potential tests revealed strong variations in the biogas potentials of individual waste streams from 240.2 to 514.2 mLN/g oDM (organic dry matter) with oDM reduction in the range of 36.4–61.5 wt.-%. Major waste generation hotspots were identified from the surveyed urban bio-reserves and the biogas potentials within an effective area of 5 km radius surrounding the hotspot were estimated. It was found that the biogas potential of individual hotspots ranged between 38.0–5938.7 m3/day. Further results revealed that the biogas potential during anaerobic co-digestion, by considering nearby bio-reserves in the effective areas of major hotspots, with and without residential organic waste, ranged between 4110.4–18–106.1 m3/day and 253.2–5969.5 m3/day, originating from 144.0–620.0 tons and 3.1–170.5 tons, respectively. Despite variations in the composition of the wastes, the Carbon/Nitrogen ratio, oDM reduction, biogas production and substrate availability were improved during co-digestion of nearby bio-reserves within the major hotspots, thereby improving the prevailing barriers in substrate management during anaerobic digestion of wastes.
KW - Biogas
KW - Co-digestion
KW - Hotspot
KW - Municipal solid wastes
KW - Organic wastes
KW - Urban city
UR - http://www.scopus.com/inward/record.url?scp=85077023510&partnerID=8YFLogxK
U2 - 10.1007/s11356-019-07321-1
DO - 10.1007/s11356-019-07321-1
M3 - Article
AN - SCOPUS:85077023510
VL - 27
SP - 29749
EP - 29765
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
SN - 0944-1344
IS - 24
ER -