Ziel
RESEARCH HAS ALREADY BEEN CARRIED OUT JOINTLY BY AFT AND BAILIEBORO CO-OP ON THE GENERATION OF METHANE FROM PIG SLURRY WITH GOOD RESULTS.
IT IS PROPOSED THAT WORK BE CONTINUED ON THE PROPERTIES OF THE DIGESTER EFFLUENTS TO INCREASE FERTILISER VALUE, PREVENT POLLUTION, CONTROL TRANSPORT AND SPREADING COSTS.
IT IS ALSO PROPOSED TO CONSTRUCT A PLUG FLOW DIGESTER CAPABLE OF HANDLING THE SLURRY PRODUCED BY 100 BEEF CATTLE DURING A 5-MONTH WINTER
VARIABLES TO BE STUDIED INCLUDE :
1. THE GAS YIELD (AFTER A ALLOWANCES ARE MADE FOR HEATING THE DIGESTER) FROM THE SLURRY OF CATTLE FED RATIONS VARYING IN THEIR PROPORTIONS OF ROUGHAGES (SILAGE, HAY, STRAWS) TO CONCENTRATES (BARLEY-BASED SUPPLEMENTS).
2. THE PHYSICAL AND CHEMICAL FACTORS INVOLVED IN DRYING THE EFFLUENT.
3. THE FERTILIZER N AND P PROPERTIES OF DE-GASSED V RAW SLURRIES.
4. THE CHANGES IN THE POLLUTING POTENTIAL OF DE-GASSED RAW SLURRY I.E. THE RU-IN AN RUN-OFF LEVELS, THE REDUCTION IN BOD AND COD AND THE HYDRAULIC LOADINGS FOR RAW V DE-GASSED SLURRY.
5. THE USE OF THE DE-GASSED SLURRY AS AN ANIMAL FEEDSTUFF BOTH WET AND DRIED.
THIS PROGRAMME OF SLURRY STUDIES WILL BE DEVELOPED IN CLOSE COOPERATION WITH THE FARM WASTE UNIT, MINISTRY OF AGRICULTURE, COLEY PARK, READING, ENGLAND, WHERE METHANE PRODUCTION FROM DAIRY COW SLURRY WILL BE STUDIED.
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DUBLIN
Irland