A full-scale study of external circulation sludge bed (ECSB) system for anaerobic wastewater treatment in a whiskey distillery
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Waste liquid streams from distillery were a hurdle in conventional wastewater treatment due to extreme high chemical oxygen demand (COD) and fluctuating feed conditions. A recently commissioned full-scale external circulation sludge bed (ECSB) was applied at a malt whiskey distillery in northeast Taiwan. Start-up of the new ECSB system, which has a total volume of 490 m3 with diameter of 6.55 m (ø) and height of 15.9 m (H), was performed by gradual increasing influent flow rates from zero to the design value of 300 m3 day−1 in the first 90 days. In the subsequent 204 days, both influent flow rates (0–389 m3 day−1) and COD concentrations (2.8–18.1 kg L−1) were highly fluctuated due to diverse batches from the distillery. However, effective bioremediation (COD removal 95.1 ± 2.4%) and biogas production (1195 ± 724 L day−1) were achieved in this system. Intensively, the Imhoff tests were carried out and shown the settled solids concentration by 0.5 ± 0.4 mL L−1, while size distributions of granular sludge were analyzed and observed by SEM-EDS. In addition, developments of the anaerobic systems (including lab, pilot, and full scale from the simplest reactor to the latest ECSB) applied in whiskey wastewater treatment were reviewed with their operational parameters for comparing performances of various anaerobic systems. In general, real-time monitoring and feasible operation strategies were critical to successfully run the system by producing clean energy simultaneously. It provides more economically attractive and sustainable-to-adopt ECSB not only an end-of-pipe process but also a bioresource technology.
KeywordsWhiskey distillery wastewater Anaerobic treatment External circulation sludge bed Biogas production Operation strategy Process monitoring
Efforts of employees in the Kavalan distillery during the system operation and intensive monitoring as well as supports from HydroThane during the constructing the ECSB system were both highly appreciated. Additional water and sludge analysis from Prof. Wen-Hsing Chen in National Ilan University was acknowledged.
- Agarwal R, Lata S, Gupta M, Singh P (2010) Removal of melanoidin present in distillery effluent as a major colorant: a review. J Environ Biol 31:521–528Google Scholar
- Anonymous (2016) Bio-energy plants transform whisky distillery sector. Filtration+Separation. Nov–Dec. 2016.Google Scholar
- Bilad MR, Declerck P, Piasecka A, Vanysacker L, Yan X, Vankelecom IFJ (2011) Treatment of molasses wastewater in a membrane bioreactor: influence of membrane pore size. Sep Purif Technol 78:105–112Google Scholar
- Fang HHP (ed) (2010) Environmental anaerobic technology: applications and new developments. Imperial College Press, LondonGoogle Scholar
- Gao M, She Z, Jin C (2007) Performance evaluation of a mesophilic (37oC) upflow anaerobic sludge blanket reactor in treating distiller’s grains wastewater. J Hazar. Mater 141:808–813Google Scholar
- Graham J, Peter B, Walker G, Wardlaw A, Campbell E (2012) Characterisation of the pot ale profile from a malt whisky distillery. In: Walker GM, Goodall I, Fotheringham R, Murray D (eds) Distilled spirits: science and sustainability, vol 43. Nottingham University Press, Nottingham, pp 1–7Google Scholar
- Hutnan M, Hornak M, Bodik I, Hlavacka V (2003) Anaerobic treatment of wheat stillage. Chem Biochem Eng Q 17:233–241Google Scholar
- Khanal SK, Giri B, Nitayavardhana S, Gadhamshetty V (2016) Anaerobic bioreactors/digesters: design and development In: Lee D-J, Hallenbeck P, Ngo H, Jegatheesan V, Pandey A (eds) Current developments in biotechnology and bioengineering: biological treatment of industrial effluents, vol 10. 1st edn. Elsevier, pp 261–279. https://doi.org/10.1016/B978-0-444-63665-2.00010-2
- Melamane XL, Strong PJ, Burgess JE (2007) Treatment of wine distillery wastewater: a review with emphasis on anaerobic membrane reactors. S Afr J Enol Vitic 28:25–36Google Scholar
- Metcalf & Eddy Inc., Tchobanoglous G, Stensel HD, Tsuchihashi R, Burton F (2014) Anaerobic suspended and attached growth biological treatment processes. In: Wastewater engineering: treatment and resource recovery, vol 10. 5th edn. McGraw-Hill Education, New York, pp 1060–1103Google Scholar
- Russell I, Stewart G (eds) (2014) Whisky: technology, production and marketing, 2nd edn. Elsevier Science Publishing Co Inc, United StatesGoogle Scholar
- Saner AB, Mungray AK, Mistry NJ (2016) Treatment of distillery wastewater in an upflow anaerobic sludge blanket (UASB) reactor. Desalin Water Treat 57:4328–4344Google Scholar
- Stout D (2015) You won’t believe where the world’s best whiskey comes from. TIME. http://time.com/3753768/world-best-whisky-taiwan-kavalan-world-whiskies-awards/ Accessed 30 May 2018.
- van Lier JB, van der Zee FP, Frijters CTMJ, Ersahin ME (2016) Development of anaerobic high-rate reactors, focusing on sludge bed technology. Adv Biochem Eng Biotechnol 14:681–702Google Scholar
- Wolmarans B, de Villiers GH (2002) Start-up of a UASB treatment plant on distillery wastewater. Water SA 28:63–68.Google Scholar
- Yamada M, Harada H, Yamauchi M, Yamaguchi T, Ohashi A (2013) Reduction of alkali supplement in a pilot-scale thermophilic multi-staged UASB reactor treating alcohol distillery wastewater. Int J Environ Res 7:823–830Google Scholar
- Zero Waste Scotland, Sector study on beer, whisky and fish (2015) 87 pages, http://www.zerowastescotland.org.uk/BeerWhiskyFish. Accessed 30 May 2018.