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Table 1 Abbreviations

From: Hydrogen production and microbial kinetics of Clostridium termitidis in mono-culture and co-culture with Clostridium beijerinckii on cellulose

Parameter

Meaning and units

KL

Lactate consumption constant (l g−1 COD biomass d−1)

Km

Substrate utilization rate (g COD PO g−1 COD biomass d−1)

Kx

Half-velocity degradation coefficient (g COD PO g−1 COD biomass)

µmax

Maximum specific growth rate (d−1)

So

Non-biodegradable factor (g COD l−1)

YA/L

Acetate yield from lactate (g COD g−1 COD lactate)

YA/PO

Acetate yield from particulate organic (g COD g−1 COD PO)

YB/PO

Butyrate yield from particulate organic (g COD g−1 COD PO)

YE/PO

Ethanol yield from particulate organic (g COD g−1 COD PO)

YF/PO

Formate from particulate organic (g COD g−1 COD PO)

YL/PO

Lactate yield from particulate organic (g COD g−1 COD PO)

YX/L

Biomass yield from lactate (g COD g−1 COD lactate)

YX/PO

Biomass yield from particulate organic (g COD biomass g−1 COD PO)