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Role of organic loading rate in bioenergy generation from palm oil mill effluent in a two-stage up-flow anaerobic sludge blanket continuous-stirred tank reactor
| Content Provider | Semantic Scholar |
|---|---|
| Author | Krishnan, Santhana Singh, Lakhveer Sakinah, Mimi Thakur, Sveta Wahid, Zularisam Ab Ghrayeb, Omar A. |
| Copyright Year | 2017 |
| Abstract | This contribution presents the technical possibilities for continuous hydrogen and methane production using an optimum organic loading rate of palm oil mill effluent in a two-stage reactor at a thermophilic temperature of 55 °C. The influence of four organic loading rates, namely, 30, 40, 50, and 60 kg COD/(m3 d) for hydrogen production and 8.3, 10.2, 13.1, 15.8 kg COD/(m3 d) for methane production, were investigated. Hydrogen production was controlled in an up-flow anaerobic sludge blanket reactor at a constant hydraulic retention time of 12 h. The maximum hydrogen content, volumetric hydrogen production rate and hydrogen yield were found to be 45%, 2.5 L H2/d and 33.48 mL H2/g COD, respectively, at the organic loading rate of 50 kg COD/(m3 d). The effluent from the hydrogenogenic reactor was further digested into methane in the continuous stirred tank reactor at a hydraulic retention time of 5 d. The maximum volumetric methane production rate and methane yield were 10.58 L CH4/d. and 0.11 m3 CH4/kg COD, respectively, at an organic loading rate of 13.1 kg COD/(m3 d). A total chemical oxygen demand removal of 91% was achieved in this two-stage process. The scientific contribution of this two-stage technology with an optimized organic loading rate may play a significant role in degrading palm oil mill effluent and developing an energy-efficient strategy for waste management. |
| Starting Page | 3044 |
| Ending Page | 3049 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.jclepro.2016.10.165 |
| Volume Number | 142 |
| Alternate Webpage(s) | http://umpir.ump.edu.my/id/eprint/15434/1/ftech-krishnan-Role%20Of%20Organic%20Loading%20Rate%20In%20Bioenergy%20Generation.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
