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In-vessel co-composting of biosolid: Focusing on mitigation of greenhouse gases emissions and nutrients conservation

Author

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  • Awasthi, Mukesh Kumar
  • Wang, Quan
  • Chen, Hongyu
  • Wang, Meijing
  • Awasthi, Sanjeev Kumar
  • Ren, Xiuna
  • Cai, Hanzhen
  • Li, Ronghua
  • Zhang, Zengqiang

Abstract

In this paper study the feasibility of Calcium-bentonite (Ca-B) combined with biochar (B) as an effective amendment for the co-composting of dewatered fresh sewage sludge (DFSS) mixed with wheat straw (WS), focusing on mitigation of greenhouse gases (GHG) emission and nutrients loss. The 12%B mixed with three different concentration of Ca-B (2%, 4% and 10%) was supplemented into 1:1 ratio mixture of DFSS and WS (dry weight basis), while compared with a 12%B alone and control or without any amended treatments. This experiment lasted for 42 days in a 130-L reactor. The CH4 and N2O emission profiles were clearly indicated that 12%B alone and 12%B + Ca-B addition effectively buffered the composting mass and enhanced the rate of organic matter mineralization as compared to control treatment. Among the all treatments, minimum TOC (16.83%), TKN (0.38%) and dry matter (29.73%) losses were observed in 12%B+4%Ca-B applied treatment; and also improved compost quality compared to control. Furthermore, 12%B+4%Ca-B amendment was beneficial to the efficient organic matter degradation and low quantity of total GHG production from the feedstock without inhibition to composting compared with control treatment. Therefore, 12%B+4%Ca-B amendment is a promising ecofriendly solution for DFSS co-composting because it contributes to reduce the total GHG emission and produced matured compost with sound management of DFSS in China.

Suggested Citation

  • Awasthi, Mukesh Kumar & Wang, Quan & Chen, Hongyu & Wang, Meijing & Awasthi, Sanjeev Kumar & Ren, Xiuna & Cai, Hanzhen & Li, Ronghua & Zhang, Zengqiang, 2018. "In-vessel co-composting of biosolid: Focusing on mitigation of greenhouse gases emissions and nutrients conservation," Renewable Energy, Elsevier, vol. 129(PB), pages 814-823.
    • Handle: RePEc:eee:renene:v:129:y:2018:i:pb:p:814-823
    DOI: 10.1016/j.renene.2017.02.068
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    Citations

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    Cited by:

    1. Nour El Houda Chaher & Mehrez Chakchouk & Nils Engler & Abdallah Nassour & Michael Nelles & Moktar Hamdi, 2020. "Optimization of Food Waste and Biochar In-Vessel Co-Composting," Sustainability, MDPI, vol. 12(4), pages 1-20, February.
    2. Anand, Abhijeet & Kumar, Vivek & Kaushal, Priyanka, 2022. "Biochar and its twin benefits: Crop residue management and climate change mitigation in India," Renewable and Sustainable Energy Reviews, Elsevier, vol. 156(C).
    3. Zhu, Jinjin & Niu, Wenquan & Zhang, Zhenhua & Siddique, Kadambot H.M. & Dan Sun, & Yang, Runya, 2022. "Distinct roles for soil bacterial and fungal communities associated with the availability of carbon and phosphorus under aerated drip irrigation," Agricultural Water Management, Elsevier, vol. 274(C).
    4. Awasthi, Mukesh Kumar & Duan, Yumin & Awasthi, Sanjeev Kumar & Liu, Tao & Zhang, Zengqiang & Kim, Sang-Hyoun & Pandey, Ashok, 2020. "Effect of biochar on emission, maturity and bacterial dynamics during sheep manure compositing," Renewable Energy, Elsevier, vol. 152(C), pages 421-429.
    5. Tao Liu & Sanjeev K Awasthi & Yumin Duan & Ashok Pandey & Zengqiang Zhang & Mukesh K Awasthi, 2021. "Current status of global warming potential reduction by cleaner composting," Energy & Environment, , vol. 32(6), pages 1002-1028, September.
    6. Minghan Li & Shuyan Li & Shigeng Chen & Qingyu Meng & Yu Wang & Wujie Yang & Lianhui Shi & Fangjun Ding & Jun Zhu & Ronghui Ma & Xinsong Guo, 2023. "Measures for Controlling Gaseous Emissions during Composting: A Review," IJERPH, MDPI, vol. 20(4), pages 1-22, February.

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