Impact of volatile fatty acids to alkalinity ratio and volatile solids on biogas production under thermophilic conditions

The study assessed the impact of volatile fatty acids (VFA) to total alkalinity (TA) ratio (VFA/TA), and percentage volatile solids (VS) reduction of batch and semi-continuous anaerobic co-digestion of palm nut paste waste (PNPW) and anaerobic-digested rumen waste (ADRW) on digester stability and bi...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. - 1991. - 39(2021), 6 vom: 01. Juni, Seite 871-878
1. Verfasser: Issah, Abdul-Aziz (VerfasserIn)
Weitere Verfasser: Kabera, Telesphore
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
Schlagworte:Journal Article Biogas ammonium–nitrogen digestate thermophilic total alkalinity volatile fatty acids Biofuels Fatty Acids, Volatile Methane OP0UW79H66
LEADER 01000naa a22002652 4500
001 NLM315640413
003 DE-627
005 20231225155345.0
007 cr uuu---uuuuu
008 231225s2021 xx |||||o 00| ||eng c
024 7 |a 10.1177/0734242X20957395  |2 doi 
028 5 2 |a pubmed24n1052.xml 
035 |a (DE-627)NLM315640413 
035 |a (NLM)32993465 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Issah, Abdul-Aziz  |e verfasserin  |4 aut 
245 1 0 |a Impact of volatile fatty acids to alkalinity ratio and volatile solids on biogas production under thermophilic conditions 
264 1 |c 2021 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 08.07.2021 
500 |a Date Revised 08.07.2021 
500 |a published: Print-Electronic 
500 |a Citation Status MEDLINE 
520 |a The study assessed the impact of volatile fatty acids (VFA) to total alkalinity (TA) ratio (VFA/TA), and percentage volatile solids (VS) reduction of batch and semi-continuous anaerobic co-digestion of palm nut paste waste (PNPW) and anaerobic-digested rumen waste (ADRW) on digester stability and biogas production under the environmental condition of 50 ± 1°C and hydraulic retention time of 21 days for the batch studies and 14 days for semi-continuous co-digestion. The co-digestion ratios were based on percentage digester volume corresponding to 90%:10%, 75%:25% and 50%:50%. During batch and semi-continuous anaerobic co-digestion, VFA/TA of 0.32-1.0 and VS reduction of 53-67% were observed as the stable range at which biogas production was maximum. In terms of semi-continuous anaerobic digestion (AD), except for the 50%:50% ratio where biogas production progressed steadily from the first to fourteenth days, biogas production initially dropped from 180.1 to 171.3 mL between the first and third days of the 90%:10% reaching a maximum of 184 mL on the fourteenth day. Biogas production declined from 198.8 to 187.5 mL on the second day and then increased to 198.8 ± 0.5 mL in the case of the 75%:25% with a significant difference between the treatment ratios at p < 0.05. Therefore, the study can confirm that the 50%:50% ratio (PNPW:ADRW) is a suitable option for managing crude fat-based waste under thermophilic AD due to its potential for rapid start-up and complete biodegradation of active biomass within a 21-day period. This presupposes that residual methane as greenhouse gas will be void in the effluent if disposed of 
650 4 |a Journal Article 
650 4 |a Biogas 
650 4 |a ammonium–nitrogen 
650 4 |a digestate 
650 4 |a thermophilic 
650 4 |a total alkalinity 
650 4 |a volatile fatty acids 
650 7 |a Biofuels  |2 NLM 
650 7 |a Fatty Acids, Volatile  |2 NLM 
650 7 |a Methane  |2 NLM 
650 7 |a OP0UW79H66  |2 NLM 
700 1 |a Kabera, Telesphore  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA  |d 1991  |g 39(2021), 6 vom: 01. Juni, Seite 871-878  |w (DE-627)NLM098164791  |x 1096-3669  |7 nnns 
773 1 8 |g volume:39  |g year:2021  |g number:6  |g day:01  |g month:06  |g pages:871-878 
856 4 0 |u http://dx.doi.org/10.1177/0734242X20957395  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 39  |j 2021  |e 6  |b 01  |c 06  |h 871-878