| dc.description.abstract | Anaerobic digestion was conducrcd at mesophilic (31'e) Gild thermophilic (S5"C) conditions using sewage
wasteWaTers as the substrate and sludge and/or rum ell[luid as (he inoculum; with a view to optimis» biogcs
production. TIre substrate and inoculum were mixed ill the ratios J: I, 1:3, and 3: i-ivolume by weight (where
sludge was used) or volume by volume (where rumen fluid was usedj.At mesophilic conditions for both
inocula, [111' 3: 1 substrate/inoculum mixture produced flu>most bingos ill a 24 hour period, with the rumen
1IIi.'CfUrt'producing tlu: highest yield (20 1111). A t tlierntophilir conditions thr 3:I wastewater/sludge mi.t1UJ'1'.
had rile highest biogas yield (5~ ml ), whereas when rumen fluid \Vas used as inoculum. the 1:3 mixture
produced the IIIOSI biogas (66 111/). The thermophilic experiments using rumen as the inoculum were
repeared for a 10 day period and the 3:1 mixture achieved the mm-11I11l1l1 yield (140 1II1) faster titan rill:other
twu (I:I untl 1:3 mixtures] indiC'lIlill/J ihut tlre 3:1 substrcu c/inoculurn ratio is lite best | en_US |
