P2269@com.qz.se ("ENG-LEONG FOO ", MIRCEN-STOCKHOLM) (07/06/89)
From: E.L. Foo (MIRCEN-Stockholm)
With adaptation of methanogenic granular sludge,
Koster & Lettinga (Biological Wastes, 1988, 25(1)51-60) were
able to obtain satisfatory methanogenic activity in potato
juice containing 9.1 g ammonia-N/litre.
Says Ali Beba (India) that if you have a solar
heater, one of its best use is to produce hot water for
slurry mixing for biogas fermenters (Solar Energy, 1988. 40
(3), 281-287.
Though frequently thought in Africa that dry dairy
manure gives better gas production than fresh manure, Chan
et al (Biological Wastes, 1988, 24 (4), 297-306) showed that
fresh manure gave a greater total volume of gas produced (
because of loss in organic materials in dried materials) but
methane yield based on m3CH4/kg volatile solids fed was the
same (0.05).
Harvesting biogas from anaerobic lagoons was studied
by Safley and Westerman (Biological Wastes, 1988, 23(3),181-
193) and found that they produce between 0.02 and 0.05 m3/m2
/day (or 0.03 to 0.23 m3/m3/day based on lagoon volume).
The potential for biogas production and anaerobic
treatment of of different wastes is amazing -
onion waste = Lubberding et al (Biological Wastes,
1988, 25(1)61-68)
caster oil cake = Gollakota et al (Biological Wastes
1988, 25(4),243-249
rabbit droppings = Mahadevaswamy & venkataraman
(Biological Wastes, 1988, 25(4) 249-256)
Willow dust = Balasubramanya et al. (Biological Wastes
1988, 25(1)25-32)
Pressmud from sugar factory = Mathur et al
(Res and Ind. A Journal for Enterpreneurs
and Technologists. 1988. 2(June),151-153)
brown algae (Laminaria spp) = Hanssen et al (Biomass,
1987. 14(1) 1-13).
water hyacinth = Kumar & Jain. (Res and Ind. A Journal
for Enterpreneurs and Technologists. 1988.
2(June),162-166)
sorghum = Jerger et al (Biomass.
1987, 14(2),99-113)