Innovative, Environmental and Economic Rice Waste Management

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Innovative, Environmental and Economic Rice Waste Management
Projektleitung Harald Hansmann , Prof. Dr.-Ing.
Kürzel Rice
Projektbeginn 01. Mai 2009
Projektabschluss 31. Dezember 2010
Projektpartner Kaha for Environmental and Agricultural Products KEAP
Projektbeteiligte Institut für Polymertechnologien e. V. ,
Projektmittel 28000 €
Mittelgeber EU-Egypt Innovation Fund
Fakultät(en) Fakultät für Ingenieurwissenschaften
Forschungsschwerpunkte(e) Produktentwicklung, Neue Materialien
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Inhalt

Egypt is producing about 8 MT rice annually with more than 3.0 Million MT rice straw (RS) and 0.6 Million MT rice husks (RHs). This should be viewed and dealt with as a national renewable treasure rather than being burnt, just partially used as animal feed or other minor purposes. The major problem hindering utilization of these lignocellulosic materials is the transportation cost compared to benefit from intended use (compost, animal feed etc). In this project the applicant and his partners will apply innovative procedures and applications that will make transportation cost justifiable and serve both the community and the environment. In addition the action will ensure reasonable profits and direct impacts on the Egyptian Economy in general and rice growers in particular. Egypt has only little own wood resources but is rich in rice cultivation, Rice straw and husks can replace wood fibres in wood plastic composites (WPC) and therefore are fibre bases for fibre-plastic composites in Egypt. Products made of natural fibre plastic composites (NFPC) can replace imported tropical hardwoods in decking e.g. at waterfronts and plastics used for railings and fencing. One of the objectives of this RDI proposal is to develop and implement NFPC based on these lignocellulosic fibres and petrochemical polymers matrix made in Egypt. Substitution up to 70% (w/w) of plastics by wood particles is achieved with the relatively new material group of wood or natural fibre-plastic composites (WPC/NFPC). Using rice straw and husks for NFPC makes a pure value side product to an interesting engineered composite material which can replace full plastic products and imported tropical timber. Markets for NFPC in Egypt are promising and numerous such as marinas and water front buildings along the Mediterranean and Red Sea coast. Furthermore, this action will invent different applications for this NFPC, thus increasing the market share for these composite materials. A second innovative technique to be applied on these available lignocellulosic materials, wrongly dealt with as a waste, is converting them to active carbon (AC). AC is a form of carbon that has been processed to make it extremely porous and thus having a very large surface area available for adsorption or chemical reaction. An Innovative procedure combining between chemical and physical activation will be followed for converting rice husk into active carbon. In addition a specific molding AC (crack-free monolithic activated carbons) would take place, for some applications, to retain the adsorption power of Rice Husk Active Carbon (RHAC). In Egypt almost all activated carbon is imported to be used for water and gases purification, in addition to some other applications such as solid lubricants, electrically conducting materials …etc.