BIO-METHANE PRODUCTION FROM CASSAVA PULP USING ULTRASONIC WAVE AS A PRETREATMENT PROCESS

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กงจักร ลมวิชัย

Abstract

Cassava pulp is a residue in starch production industry. It can be value added by using to produce biomethane as a source of energy. However, a pretreatment process is required prior to its production. In this research, the enhancement of biomethane production from cassava pulp was studied using ultrasonic wave with power of 160 W as a pretreatment process. The effects of cassava pulp concentration (0.5-4.0 % w/v) and ultrasonic wave treating time (10-30 min) on physical structure, chemical composition and biomethane potential were investigated. Results showed that ultrasonic wave treatment caused changes in cassava pulp fiber, creating more porous and loose structure. Moreover, the soluble chemical oxygen demand (SCOD) of pretreated samples was found to increase by 4.44-14.8% compared to that of unpretreated sample. When the treated samples were subsequently used to produce biomethane, the cassava pulp concentration of 2.25% w/v and ultrasonic wave treating time of 20 min gave the highest methane yield of 267.07±1.51 mLCH4/gVSadded while the lowest methane yield was found with the condition of 4.00% w/v and 20 min with the value of 70.26±7.92 mLCH4/gVSadded

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1.
ลมวิชัย ก. BIO-METHANE PRODUCTION FROM CASSAVA PULP USING ULTRASONIC WAVE AS A PRETREATMENT PROCESS. featkku [internet]. 2017 Jun. 1 [cited 2026 Jan. 24];3(2):77-84. available from: https://ph02.tci-thaijo.org/index.php/featkku/article/view/176556
Section
Research Articles

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