It is not plain which process variant best suits
slaughterhouse operation. For example, the
Dutch have used both sequencing-batch and
continuous plants for nutrient removal in animal
manure slurries (Willers et al., 1993).
(ii) It would appear that relatively little is known
about denitrification of slaughterhouse wastewater
(Frose & Kayser, 1985). Biological
denitrification requires the availability of
readily degradable carbon. Therefore, prior
anaerobic removal of COD from slaughterhouse
wastewater (in anaerobic ponds or
high-rate systems), which is common in the
meat industry, must be carefully balanced
against this requirement if successful denitrification
is to be obtained without the highly
expensive use of external carbon sources.
These are probably unnecessary for slaughterhouse
wastewater. Metzner and Temper
(1990) describe the use of an anaerobic filter
which preceded a BNR plant which achieved
nitrogen removal. Carbon for denitrification
was provided by a 14% volume raw effluent
bypass of the anaerobic reactor
It is not plain which process variant best suitsslaughterhouse operation. For example, theDutch have used both sequencing-batch andcontinuous plants for nutrient removal in animalmanure slurries (Willers et al., 1993).(ii) It would appear that relatively little is knownabout denitrification of slaughterhouse wastewater(Frose & Kayser, 1985). Biologicaldenitrification requires the availability ofreadily degradable carbon. Therefore, prioranaerobic removal of COD from slaughterhousewastewater (in anaerobic ponds orhigh-rate systems), which is common in themeat industry, must be carefully balancedagainst this requirement if successful denitrificationis to be obtained without the highlyexpensive use of external carbon sources.These are probably unnecessary for slaughterhousewastewater. Metzner and Temper(1990) describe the use of an anaerobic filterwhich preceded a BNR plant which achievednitrogen removal. Carbon for denitrificationwas provided by a 14% volume raw effluentbypass of the anaerobic reactor
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