Semi-continuous reverse membrane bioreactor in two-stage anaerobic digestion of citruswaste
Artikel i vetenskaplig tidskrift, 2018

The presence of an antimicrobial compound called D-Limonene in citrus waste inhibits methane production from such waste in anaerobic digestion. In this work, a two-stage anaerobic digestion method is developed using reverse membrane bioreactors (rMBRs) containing cells encased in hydrophilic membranes. The purpose of encasement is to retain a high cell concentration inside the bioreactor. The effectiveness of rMBRs in reducing cell washout is evaluated. Three different system configurations, comprising rMBRs, freely suspended cells (FCs), and a combination of both (abbreviated to rMBR-FCs), are incubated at three different organic loading rates (OLRs) each, namely 0.6, 1.2, and 3.6 g COD/(L cycle). Incubation lasts for eight feeding cycles at 55 °C. Methane yield and biogas composition results show that rMBRs perform better than rMBR-FCs and FCs at all three OLRs. Volatile fatty acid profiles and H2production show that the reactors are working properly and no upset occurs. Additionally, a short digestion time of 4 days can be achieved using the rMBR configuration in this study.

Membrane bioreactor

Anaerobic digestion

Citrus waste

Semi-continuous

Biogas

Two-stage

Författare

Tonny Kurniawan

Gadjah Mada University

Lukitawesa

Högskolan i Borås

Ilma Hanifah

Gadjah Mada University

Rahma wikandari

Gadjah Mada University

Ria Millati

Gadjah Mada University

Mohammad Taherzadeh Esfahani

Högskolan i Borås

Claes Niklasson

Chalmers, Kemi och kemiteknik, Kemiteknik, Kemisk apparatteknik

Materials

1996-1944 (ISSN)

Vol. 11 8 1341

Drivkrafter

Hållbar utveckling

Ämneskategorier

Cellbiologi

Förnyelsebar bioenergi

Annan industriell bioteknik

Styrkeområden

Energi

DOI

10.3390/ma11081341

Mer information

Senast uppdaterat

2018-08-14