J. Raynal et al., 2-PHASE ANAEROBIC-DIGESTION OF SOLID-WASTES BY A MULTIPLE LIQUEFACTION REACTORS PROCESS, Bioresource technology, 65(1-2), 1998, pp. 97-103
Citations number
18
Categorie Soggetti
Energy & Fuels","Biothechnology & Applied Migrobiology",Agriculture
A new solid-waste treatment process was applied ro different vegetable
substrates: potato peelings, gr een salad leaves, green pens mixed wi
th carrots, apple pomace. Ir involved at a laboratory scale, several l
iquefaction digesters, each of them treating one type of waste, couple
d to a central methane fixed-film reactor The influence of pH, loan an
d hydraulic retention time on the process performances was studied at
35 degrees C On average, except for apple pomace, hydrolysis yields we
re high (up to 80%) during the liquefaction step. Likewise, the mixtur
e of the acidogenic effluents was degraded in a methanation reactor to
an extent of 80%. In a final nln with average values near 4 g COD l(-
1) day(-1) for loaning rate and 17 days for hydraulic retention rime,
over-all organic matter removal reached 87%. (C) 1998 Elsevier Science
Ltd. All rights reserved.