Anaerobic co-digestion of canned seafood wastewater (CSW) with glycerol waste (GW) and wolffia arrhiza (WA)
for methane production was investigated. Methane yields from anaerobic co-digestion of CSW with 1%GW, CSW
with 1%GW and 5%WA, CSW with 1%GW and 10%WA and CSW with 1%GW and 15%WA were 577, 789, 545
and 474 mL CH4/g VS-added, respectively. Methane production from CSW with 1%GW and 5%WA increased
approximately 4-fold when compared with CSW alone (278 mLCH4/g VS-added). Co-digestion of CSW with 1%
GW and 5% WA was the best condition and gave the maximum methane production of 8.8 m3 CH4/m3
mixed
wastewater and 96.8% biodegradability. The maximum methane production rate and yield were 3.71 L CH4/Lreactor.day
and 858 mL CH4/g VS-added (352 mLCH4/g COD-removed) at OLR of 4 g COD/L. day in UASB
reactor. The methane composition in biogas was 62.3%. The Monod, Modified Stover–Kincannon and Grau secondorder
models were used to explain the performance of UASB reactor. The results showed that the kinetic coefficient
of the Modified Stover–Kincannon model could explain the performance of UASB reactor in term of COD removal
efficiency and microbial growth by having the regression coefficient (R2
) as 0.987.
Anaerobic co-digestion of canned seafood wastewater (CSW) with glycerol waste (GW) and wolffia arrhiza (WA)for methane production was investigated. Methane yields from anaerobic co-digestion of CSW with 1%GW, CSWwith 1%GW and 5%WA, CSW with 1%GW and 10%WA and CSW with 1%GW and 15%WA were 577, 789, 545and 474 mL CH4/g VS-added, respectively. Methane production from CSW with 1%GW and 5%WA increasedapproximately 4-fold when compared with CSW alone (278 mLCH4/g VS-added). Co-digestion of CSW with 1%GW and 5% WA was the best condition and gave the maximum methane production of 8.8 m3 CH4/m3 mixedwastewater and 96.8% biodegradability. The maximum methane production rate and yield were 3.71 L CH4/Lreactor.dayand 858 mL CH4/g VS-added (352 mLCH4/g COD-removed) at OLR of 4 g COD/L. day in UASBreactor. The methane composition in biogas was 62.3%. The Monod, Modified Stover–Kincannon and Grau secondordermodels were used to explain the performance of UASB reactor. The results showed that the kinetic coefficientof the Modified Stover–Kincannon model could explain the performance of UASB reactor in term of COD removalefficiency and microbial growth by having the regression coefficient (R2) as 0.987.
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