Acid pretreatment of sago wastewater for biohydrogen production

Mohamad Puad, Noor Illi and Abd Rahim, Nurainin Farhan and Azmi, Azlin Suhaida (2018) Acid pretreatment of sago wastewater for biohydrogen production. In: International Conference on Civil & Environmental Engineering (CENVIRON 2017), 28th-29th Nov. 2017, Pulau Pinang.

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Abstract

Biohydrogen has been recognized to be one of the future renewable energy sources and has the potential in solving the greenhouse effects. In this study, Enterobacter aerogenes (E. aerogenes) was used as the biohydrogen producer via dark fermentation process using sago wastewater as the substrate. However, pretreatment of sago wastewater is required since it consists of complex sugars that cannot be consumed directly by the bacteria. This study aimed to use acid pretreatment method to produce high amount of glucose from sago wastewater. Three different types of acid: sulfuric acid (H2SO4); hydrochloric acid (HCl) and nitric acid (HNO3) were screened for the best acid in producing a maximum amount of glucose. H2SO4 gave the highest amount of glucose which was 9.406 g/L. Design of experiment was done using Face-centered Central Composite Design (FCCCD) tool under the Response Surface Methodology (RSM) in Design Expert 9 software. The maximum glucose (9.138 g/L) was recorded using 1 M H2SO4 at 100 °C for 60 min. A batch dark fermentation using E. aerogenes was carried out and it was found that pretreated sago wastewater gave a higher hydrogen concentration compared to the raw wastewater.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	5462/59935
Uncontrolled Keywords:	sago wastewater, biohydrogen production
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology > TP315 Fuel
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Noor Illi Mohamad Puad
Date Deposited:	22 Dec 2017 11:08
Last Modified:	28 Jun 2018 12:06
URI:	http://irep.iium.edu.my/id/eprint/59935

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