Abstract
To reduce energy consumption in a sludge drying process, sludge treatment process combined with bio-drying and carbonization was newly developed, which reduced the moisture content of the sludge by less than 30%-wet through bio-drying process without adding any auxiliary fuel. In this experiment, bio-drying of dog food, as simulated organic waste sample, in a lab-scale was carried out and effect of sludge char addition on the drying rate and decomposition rate of wet dog food during bio-drying was analyzed. Addition of sludge char to dog food in bio-drying experiment was found to increase the drying rate and to promote decomposition of organic matter. It was also clarified that the drying rate of dog food and decomposition rate of organic matter increased with increasing amount of char addition. Initial amount of filled dog food also influenced drying rate and decomposition rate; the drying rate and decomposition rate increased with increasing dog food amount.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Japan Sewage Work Association, Management of Wastewater in Japan (2016) http://gcus.jp/wp/wp-content/uploads/2017/03/da25d58e311828646b563677c900b90c.pdf. Accessed 30 Jan 2019
Istvan Zsirai (2010) Sewage sludge as renewable energy. In: 2nd European conference on sludge management, September 9–10, Budapest, Hungary
Ministry of the Environment, Minister’s Secretariat, Waste Management and Recycling Department (2012) Solid waste management and recycling technology of Japan toward a sustainable society. https://www.env.go.jp/en/recycle/smcs/attach/swmrt.pdf. Accessed 7 July 2017
Sewerage Act (2019) http://www.mlit.go.jp/common/001264477.pdf Accessed 30 Jan 2019
Jewell WJ, Cummings RJ (1984) Apple pomace energy and solids recovery. Food Sci 49:407–410
Chen G, Yue PL, Mujumdar AS (2002) Sludge dewatering and drying. DryTechnol 20:883–916
Archer E, Baddeley A, Klein A, Schwager J, Whiting K (2005) Mechanical biological treatment: a guide for decision makers, processes and markets, Juniper Consultancy Services Ltd. https://www.cti2000.it/Bionett/BioG-2005-004%20MBT_Annexe%20A_Final_Revised.pdf. Accessed 7 July 2017
Navaee-Ardeh S, Bertrand F, Stuart PR (2006) Emerging biodrying technology for the drying of pulp and paper mixed sludges. Dry Technol 24:863–878
Rada EC, Franzinelli A, Taiss M, Ragazzi M, Panaitescu V, Apostol T (2007) Lower heating value dynamics during municipal solid waste biodrying. Environ Tech 28:463–469
Velis CA, Longhurst PJ, Drew GH, Smith R, Pollard SJT (2009) Biodrying for mechanical–biological treatment of wastes: a review of process science and engineering. Biores Technol 100:2747–2761
Adani F, Baido D, Calcaterra E, Genevini P (2002) The influence of biomass temperature on biostabilization–biodrying of municipal solid waste. Bioresour Technol 83:173–179
Frei KM, Stuart PR, Cameron D (2004) Novel drying process using forced aeration through a porous biomass matrix. Dry Technol 22:1191–1215
Leonard A, Blacher S, Marchot P, Pirard JP, Crine M (2005) Convective drying of wastewater sludges: influence of air temperature, superficial velocity, and humidity on the kinetics. Dry Technol 23:1667–1679
de Guardia A, Petiot C, Rogeau D (2008) Influence of aeration rate and biodegradability fractionation on composting kinetics. Waste Manag 28:73–84
Itaya Y, Kobayashi N, Li N, Suami A, Sawai M, Hamabe H (2015) Self-energy drying of sewage sludge by composting in updraft dryer. Drying Technol 33:1029–1038
Suami A, Kobayashi N, Hamabe H, Sawai S, Itaya Y (2014) Behavior of nitrogen and sulfur during the char production from bio-dried sludge, Trans JSME 81:14-00439 (in Japanese)
Kobayashi N, Hamabe H, Li Y, Itaya Y (2014) Sludge treatment system combined with bio-drying and carboninzation. In: 20th International drying symposium (IDS 2014), August, 11–15, Rion, France
Asha PT, Haridasb A, Pawels R (2016) Biodrying process efficiency: significance of reactor matrix height. Proc Technol 25:130–137
Yu D, Yang M, Qi L, Liu M, Wang Y, Wei Y (2017) Effects of aeration on matrix temperature by infrared thermal imager and computational fluid dynamics during sludge bio-drying. Water Res 122:317–328
Kobayashi N, Tanabe Y, Itaya Y (2012) Enhanced compost-drying process of sewage sludge with carbonized sludge. In: AIChE annual full meeting, November 2–9, Pittsburg, PA, U.S.A
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Kobayashi, N., Hamabe, H., Yamaji, S. et al. Effect of sludge char addition on drying rate and decomposition rate of organic waste during bio-drying. J Mater Cycles Waste Manag 21, 897–904 (2019). https://doi.org/10.1007/s10163-019-00847-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10163-019-00847-z