Journal of Oil Palm Research Vol. Special Issue  2008 Oct p.  115-126

Effect of new palm oil mill processes on the EFB and POME utilization

Author(s): SCHUCHARDT, Frank * ; WULFERT, Klaus ** ; DARNOKO Herawan + ; TJAHONO Herawan +

New palm oil mill processes are char­ac­ter­ized by advanced oil sep­a­ra­tion tech­nolo­gies with zero dilu­tion water (‘ECO-D’ for exam­ple as a new sys­tem for oil recov­ery with­out dilu­tion water) and con­tin­u­ous ster­il­iza­tion of the fresh fruit bunch (FFB). These processes have a deep impact on the amount and com­po­si­tion of waste water (POME). Com­pared to con­ven­tional palm oil mills the total amount of palm oil mill efflu­ent (POME) can be reduced from 0.65 m3 t–1 FFB to 0.45 m3 t–1 (con­ven­tional ster­il­iza­tion and zero dilu­tion water) and 0.25 m3 t–1 (con­tin­u­ous ster­il­iza­tion and zero dilu­tion water). These changes influ­ence the treat­ment processes and its cost sig­nif­i­cantly. One process for the EFB and POME uti­liza­tion which can ful­fil the demand of a sus­tain­able palm oil pro­duc­tion is the co-composting of both of the mate­ri­als. The com­post­ing process is used also for bio­log­i­cal dry­ing of the POME. The final prod­uct of the process is com­post or mulch which uni­fies the nutri­ents of both in one prod­uct. The POME can be used also for bio­gas pro­duc­tion (in fixed bed reac­tors for POME with low dry mat­ter con­tent and in totally mixed reac­tors for ECO-D bio­mass) before com­post­ing. The invest­ment cost and prof­itabil­ity of the com­post­ing and fer­men­ta­tion process is cal­cu­lated in detail based on data from prac­tise in Indone­sia. The new devel­op­ments of processes in palm oil mills can reduce the cost for the waste and waste water treat­ment up to 35%. The ben­e­fits from bio­gas pro­duc­tion and com­post­ing are the energy pro­duc­tion, saved POME treat­ment cost in pond sys­tems, total uti­liza­tion of the POME nutri­ents, reduced cost for the EFB trans­port and uti­liza­tion, higher empty fruit bunch (FFB) yields and from clean devel­op­ment mech­a­nism (CDM).

Keywords: , , , , ,

Author Information
* Heinrich von Thunen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Technology and Biosystems Engineering, Braunschweig, Germany.

** Development and Application of Environmental friendly Technology GmbH, Bremen, Germany.

+ Indonesian Oil Palm Research Institute (IOPRI), Medan, Indonesia.

Cited By

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Source: Scopus
Last checked: 22 May 2017

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