Hydrolysis of starch using Fenton's reagents as a key for waste integrated management in a potato processing industry

Vlyssides, A; Barampouti, EM; Mai, S; Stamatoglou, E; Rigaki, K

dc.contributor.author	Vlyssides, A	en
dc.contributor.author	Barampouti, EM	en
dc.contributor.author	Mai, S	en
dc.contributor.author	Stamatoglou, E	en
dc.contributor.author	Rigaki, K	en
dc.date.accessioned	2014-03-01T02:52:00Z
dc.date.available	2014-03-01T02:52:00Z
dc.date.issued	2009	en
dc.identifier.issn	19749791	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35808
dc.title	Hydrolysis of starch using Fenton's reagents as a key for waste integrated management in a potato processing industry	en
heal.type	conferenceItem	en
heal.identifier.primary	10.3303/CET0918025	en
heal.identifier.secondary	http://dx.doi.org/10.3303/CET0918025	en
heal.publicationDate	2009	en
heal.abstract	A main characteristic of wastewater from a potato processing industry is its high concentration of starch. This wastewater requires special management due to the physical characteristics of starch. An alternative utilization method seems to be necessary. Utilization of the high energy content of starch through conventional anaerobic digestion may be applicable since anaerobic digestion is usually included in a typical potato processing industry wastewater treatment plant. The direct feed of starch in an anaerobic digester causes serious operational problems leading to system's failure. A hydrolysis step is thus necessary. In this paper a new approach in hydrolysis of starch waste was proposed. Chemical hydrolysis was performed by use of Fenton's reagents. The optimum operational conditions (temperature, concentrations of Fenton's reagents) and experimental procedure were determined in order to maximize the easy biodegradable soluble carbon concentration per gram of starch. The hydrolyzed effluent was then treated anaerobically and the energy content of the solution was converted successfully in methane. Applying this technique in a potato processing industry the estimated energy profit can be increased over 66%. Apart from the energy profit, the ratio of carbon to nitrogen is improved rendering the biological treatment of total wastewater stream efficient. Conclusively, this proposed hydrolysis technique could be the key factor for the integrated waste management in a potato processing industry regarding both the reduction of organic load as well as the energy production from biomass. Copyright © 2009, AIDIC Servizi S.r.l.	en
heal.journalName	Chemical Engineering Transactions	en
dc.identifier.doi	10.3303/CET0918025	en
dc.identifier.volume	18	en
dc.identifier.spage	165	en
dc.identifier.epage	170	en