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Inhalt archiviert am 2019-03-15

INFILTRATION OF VIRUS THROUGH ESPECIALLY SANDY SOILS AND SURVIVAL UNDER GROUND WATER CONDITIONS

Ziel

ESTABLISHMENT OF HEALTH CRITERIA FOR A SAFE HANDING OF POLLUTED WATERS.

THE RESEARCH PROPOSAL IS STRICTLY A CONTINUATION OF THE WORK CARRIED OUT UNDER THE ENV CONTRACT 526, WICH HAS BEEN REPORTED.

STUDIES CONNECTED WITH INDIGENOUS VIRUS IN GROUND WATER. NEITHER CONVENTIONAL WASTE WATER TREATMENT NOR SLUDGE DIGESTION OR STABILISATION COMPLETELY DESTROY INFECTIOUS VIRUS PRESENT IN THE RAW WASTE WATER. THEREFORE THE FATE OF INDIGENOUS VIRUS DURING LAND APPLICATION OF MESOPHILIC DIGESTED SLUDGE FROM CONVENTIONAL BIOLOGICAL WASTE WATER TREATMENT PLAN SHOULD BE STUDIED. GROUND WATER SAMPLES BELOW A SEEPAGE AREA AND ALSO FROM WELLS IN THE SLUDGE DISPOSAL AREA SHOULD BE EXAMINED FOR CONTENT OF INDIGENOUS VIRUSES. THE CONTINUED WORK IS PLANNED WITH THE EMPLOYMENT OF SAMPLES CONCENTRATED IN LOCATION THROUGH FILTRATION. THE SAMPLING PERIOD SHOULD BE CONCENTRATED BETWEEN SEPTEMBER AND DECEMBER, BUT SAMPLES OF INFILTRATED WATER SHOULD BE OBTAINED AT OTHER TIMES, AS THE PRELIMINARY EXPERIMENT INDICATES A LONG SURVIVAL OF VIRUS, IF IT HAS INFILTRATED THE SOIL.

LABORATORY STUDIES EMPLOYING COLUMNS OF RELEVANT SOIL TYPES AND WATERS SEEDED WITH VIRUS. BOTH LOCATIONS STUDIED (HESELVIG PLANTATION AND FREDERIKS), SITUATED IN MOOR-PLAINS WITH FLUVIO-GLACIAL SAND WILL HELP TO GET INFORMATION RELATED TO GROUND WATER SITUATIONS. THE LAST AREA OF RESEARCH IS THE STABILITY UNDER SATURATED ANAEROBIC CONDITIONS. THE SEARCH FOR INDIGENOUS VIRUSES AND INVESTIGATIONS OF SEEDED VIRUS CAN NOW INCLUDE STUDIES OF INFECTIOUS HEPATITIS VIRUS.AS STUDIES ON HEPATITIS VIRUS UNDER SUCH CIRCUMSTANCES HAVE NOT BEEN CARRIED OUT BEFORE, THE OUTCOME IS SO FAR UNCERTAIN.

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UNIVERSITY OF COPENHAGEN
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