Improved economic viability of integrated biogas energy and compost production for sustainable palm oil mill management

Yoshizaki, Tatsuya; Shirai, Yoshihito; Hassan, Mohd Ali; Baharuddin, Azhari Samsu; Abdullah, Nik Mustapha Raja; Sulaiman, Alawi; Busu, Zainuri

doi:10.1016/j.jclepro.2012.12.007

Cited by 92 publications

(30 citation statements)

References 13 publications

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“…Other types of co-compost can also be explored such as a mix of palm fronds with palm oil mill effluent sludge (Ahmad et al, 2011). Integrated combination of methane capture and compost production may also be a suitable option (Stichnothe and Schuchardt, 2010;Yoshizaki et al, 2013). The comparison of these different options in order to harness the best from all potential recycled materials need to account for both the benefits and risks for the palm agroecosystem and the potential net input-output gain at the whole supply chain level.…”

Section: Introductionmentioning

confidence: 99%

Agroecological practices in oil palm plantations: examples from the field

Bessou

Verwilghen

Beaudoin‐Ollivier

et al. 2017

OCL

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-Palm oil is nowadays the first vegetable oil consumed worldwide. Given the world population growth and the increasing demand in fat for food and fuel, the increase in oil palm production is expected to continue. It is thus important to find ways of reducing the ecological impact of oil palm plantations at both the agroecosystem and the mill supply area levels, by improving agricultural practices and land uses. This is where agroecology can play a very critical role. The present article gathers short stories on agroecological practices currently taking place in oil palm plantations in South-East Asia. Such stories notably highlight the importance of the various palm co-products and how appropriate recycling strategies can allow for reducing external inputs to both the field and the mill. Besides limiting environmental impacts thanks to such savings, several coproducts used as organic amendments can even help to maintain or enhance soil quality. Other stories explored agroecological practices developed for biological controls. Although integrated pest management has been applied in palm plantations for a long time, the underlying mechanisms are still not fully deciphered and practices still need to be improved. More knowledge is needed in order to better account for the holistic role of biodiversity and arbitrate trade-offs between practices and ecosystem services, at both plantation and landscape levels.Keywords: palm oil / agroecology / biological control / recycling / composting / soil quality Résumé -Pratiques agroécologiques en plantations de palmier à huile : exemples de terrain. L'huile de palme est aujourd'hui la première huile végétale consommée au monde. Étant donné la croissance démographique mondiale et la demande accrue en corps gras pour l'alimentation et les biocarburants, l'augmentation de la production d'huile de palme devrait perdurer. Il est ainsi primordial de trouver des moyens de production permettant de réduire l'impact écologique des plantations de palmier à huile, à la fois à l'échelle de l'agroécosystème et celle du bassin d'approvisionnement de l'huilerie, en améliorant les pratiques et la gestion des usages des sols. Les principes de l'agroécologie peuvent aider à développer des solutions à ces diverses échelles. Cet article rassemble diverses histoires courtes illustrant des pratiques agroécologiques mises en place dans des plantations de palmier à huile en Asie du Sud-Est. Ces illustrations mettent en évidence l'importance des nombreux co-produits issus du palmier et leur rôle clé dans les stratégies de recyclage pour réduire le recours aux intrants externes pour la plantation comme pour l'huilerie. Au-delà de la réduction des impacts environnementaux du fait de ces économies d'intrants, certains co-produits restitués en plantation peuvent également permettre de maintenir, voire d'améliorer, la qualité des sols. D'autres histoires courtes parcourent quelques autres pratiques agroécologiques dans le domaine de la lutte intégrée. Bien que de nombreuses pratiques de contrôle bi...

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Section: Introductionmentioning

confidence: 99%

Agroecological practices in oil palm plantations: examples from the field

Bessou

Verwilghen

Beaudoin‐Ollivier

et al. 2017

OCL

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“…The other major resource being wasted is excess steam produced through burning of oil palm oil biomass (Yoshizaki et al, 2013). The integration and effective utilization of biomass and excess steam are believed to provide eco-processes and green products towards a sustainable oil palm industry.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal and wet disk milling pretreatment for high conversion of biosugars from oil palm mesocarp fiber

Zakaria

Norrrahim

Hirata

et al. 2015

Bioresource Technology

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Eco-friendly pretreatment methods for lignocellulosic biomass are being developed as alternatives to chemical based methods. Superheated steam (SHS), hot compressed water (HCW) and wet disk milling (WDM) were used individually and with combination to partially remove hemicellulose and alter the lignin composition of recalcitrant structure of oil palm mesocarp fiber (OPMF). The efficiency of the pretreatment methods was evaluated based on the chemical compositions altered, SEM analysis, power consumption and degree of enzymatic digestibility. Hemicellulose removal (94.8%) was more pronounced under HCW compared to SHS, due to maximal contact of water and production of acetic acid which enhanced further degradation of hemicellulose. Subsequent treatment with WDM resulted in defibrillation of OPMF and expansion of the specific surface area thus increasing the conversion of cellulose to glucose. The highest glucose yield was 98.1% (g/g-substrate) when pretreated with HCW (200 °C, 20 min) and WDM which only consumed 9.6 MJ/kg of OPMF.

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“…The latest research found that composting of empty fruit bunches together with palm oil mill effluent and compatible multi-enzymatic fungal system produced matured compost with C/N ratio of 17 (Mohammad et al 2013). Nevertheless, installing compost technology alone is troublesome due to the characteristics of raw palm oil mill effluent; plus composting with this effluent requires additional microbes and enzymes for maintaining product quality and water content (Yoshizaki et al 2013). Although composting of empty fruit bunches under aerobic conditions is more effective, the process requires a turning machine and intensive labor (Kananam et al 2011).…”

Section: Introductionmentioning

confidence: 99%

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

Lim

Clarke

et al. 2014

Int. J. Environ. Sci. Technol.

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Vermicomposting is a process to biotransform organic solid wastes into valuable product, namely vermicompost using epigeic earthworms. Vermicomposting technology may provide a low-input basis for sustainable management of organic solid waste. The present study was to investigate the suitability of oil palm empty fruit bunches to be reused as feedstocks of Eudrilus eugeniae for the duration of 12 weeks. Empty fruit bunches were mixed with cow dung in different ratios to produce five different treatments for laboratory screening of solid waste. The growths of E. eugeniae were monitored weekly. All treatments encouraged the growth of E. eugeniae except the treatment with empty fruit bunches alone. The maturity and quality of vermicompost were assessed through carbon-tonitrogen ratio, calcium, phosphorus, potassium and magnesium. Generally, all treatments showed increases in total contents of calcium (39.38-373.17 %), phosphorus (15.15-390.54 %), potassium (45.55-153.66 %) and magnesium (55.86-370.93 %) but a decrease in carbon-tonitrogen ratio (11.24-76.24 %) after 12 weeks of vermicomposting process. Besides, parameters such as pH and electrical conductivity were also investigated in this paper.Among all the treatments investigated, empty fruit bunches that were mixed with cow dung in the ratio of 2:1 were biotransformed into the most superior quality vermicompost (carbon-to-nitrogen ratio, 18.53; calcium, 7.76 g/kg; phosphorus, 3.63 g/kg; potassium, 12.81 g/kg; and magnesium, 4.05 g/kg). In conclusion, vermicomposting could be used as an efficient technology to convert empty fruit bunches into nutrient-rich organic fertilizers if the wastes were mixed with cow dung in an appropriate ratio.

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Improved economic viability of integrated biogas energy and compost production for sustainable palm oil mill management

Cited by 92 publications

References 13 publications

Agroecological practices in oil palm plantations: examples from the field

Agroecological practices in oil palm plantations: examples from the field

Hydrothermal and wet disk milling pretreatment for high conversion of biosugars from oil palm mesocarp fiber

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

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