| effect of sludge type on poliovirus association with and recovery from sludge solids. | sludge type was found to affect the degree of association between seeded poliovirus type 1 (lsc) and sludge solids. the mean percent of solids-associated viruses for activated sludge mixed liquors, anaerobically digested sludges, and aerobically digested percent of solids-associated viruses for activated sludge mixed liquors, anaerobically digested sludges, and aerobically digested sludges was 57.2, 70.4, and 94.7, respectively. the degree of association between poliovirus and sludge solids was ... | 1981 | 6263439 |
| virus transport and survival after land application of sewage sludge. | the survival and transport patterns of poliovirus 1 and echovirus 1 were studied in undisturbed soil cores which were treated with digested sludge and exposed to natural weather conditions prevailing in north central florida. it was shown that, under those experimental conditions, enteroviruses are relatively rapidly inactivated in the soil. a more rapid virus decline was observed during the warm and dry fall season than during the warm and wet summer season. the monitoring of soil core leachate ... | 1984 | 6331308 |
| virus detection in soils: a comparison of four recovery methods. | among nine eluents tested, 0.5% (w/v) isoelectric casein at ph 9.0 and 0.5% (w/v) non-fat dry milk (ph 9.0) were the most efficient in eluting poliovirus type 1 (sabin) from eustis fine sand. however, no significant difference was found between the overall (elution followed by concentration) virus recoveries by non-fat dry milk, isoelectric casein, beef extract, and glycine-edta methods. high overall recovery (75%) of low input (200 pfu) of viruses from 100 g of soil was achieved by the isoelect ... | 1979 | 230890 |