Influence of wet oxidation pretreatment with hydrogen peroxide and addition of clarified manure on anaerobic digestion of oil palm empty fruit bunches

Jonathan T E Lee; Muhammad Usman Khan; Yanjun Dai; Yen Wah Tong; Birgitte K Ahring

doi:10.1016/j.biortech.2021.125033

Influence of wet oxidation pretreatment with hydrogen peroxide and addition of clarified manure on anaerobic digestion of oil palm empty fruit bunches

Bioresour Technol. 2021 Jul:332:125033. doi: 10.1016/j.biortech.2021.125033. Epub 2021 Mar 23.

Authors

Jonathan T E Lee¹, Muhammad Usman Khan², Yanjun Dai³, Yen Wah Tong⁴, Birgitte K Ahring⁵

Affiliations

¹ Environmental Research Institute, National University of Singapore, Singapore; Bioproducts, Sciences and Engineering Laboratory, Washington State University Tricities, Biological Systems Engineering, Washington State University, United States; Energy and Environmental Sustainability for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 Create Way, Singapore 138602, Singapore.
² Bioproducts, Sciences and Engineering Laboratory, Washington State University Tricities, Biological Systems Engineering, Washington State University, United States; Department of Energy System Engineering, University of Agriculture, Faisalabad, Pakistan. Electronic address: usman.khan@uaf.edu.pk.
³ Energy and Environmental Sustainability for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 Create Way, Singapore 138602, Singapore; School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.
⁴ Energy and Environmental Sustainability for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 Create Way, Singapore 138602, Singapore; Department of Chemical & Biomolecular Engineering, NUS, Singapore. Electronic address: chetyw@nus.edu.sg.
⁵ Bioproducts, Sciences and Engineering Laboratory, Washington State University Tricities, Biological Systems Engineering, Washington State University, United States.

PMID: 33826979
DOI: 10.1016/j.biortech.2021.125033

Abstract

Food and energy requirements are increasing globally, and the challenge is to meet these demands in a sustainable manner. Oil palm has a relatively high productivity, but produces the lignocellulosic residue of empty fruit bunches (OPEFB). In this study, wet oxidation pretreatment is utilized to overcome the recalcitrance of OPEFB during semi-continuous anaerobic digestion (AD) with between 19.7 and 52.7% improvement over the control, and near total cellulose and hemicellulose content could be degraded. Clarified manure, the water phase of cattle and dairy manure after filtration, is further tested for its effect on methane production by providing necessary micronutrients and vitamins. An increase of 49% was found after addition of clarified manure to OPEFB compared to without this addition.

Keywords: Anaerobic digestion; Clarified manure; Oil palm empty fruit bunches; Resource recovery; Wet oxidation pretreatment.

MeSH terms

Anaerobiosis
Animals
Biofuels
Cattle
Cellulose
Fruit*
Hydrogen Peroxide
Manure*
Methane
Palm Oil

Substances

Biofuels
Manure
Palm Oil
Cellulose
Hydrogen Peroxide
Methane