Effects of Sludge-amendment on Mineralization of Pyrene and Microorganisms in Sludge and Soil
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Effects of Sludge-amendment on Mineralization of Pyrene and Microorganisms in Sludge and Soil. / Klinge, C; Gejlsbjerg, B; Ekelund, Flemming; Madsen, T.
In: Chemosphere, Vol. 45, No. 4-5, 2001, p. 625-634.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of Sludge-amendment on Mineralization of Pyrene and Microorganisms in Sludge and Soil
AU - Klinge, C
AU - Gejlsbjerg, B
AU - Ekelund, Flemming
AU - Madsen, T
N1 - Author Keywords: Biodegradation; Sludge-amended soil; Bacteria; Protozoa; Pyrene
PY - 2001
Y1 - 2001
N2 - Hydrophobic contaminants sorb to sludge in wastewater treatment plants and enter the soil environment when the sludge is applied to agricultural fields. The mineralization of pyrene was examined in soil, in sludge mixed homogeneously into soil, and in sludge-soil systems containing a lump of sludge. Sludge-amendment enhanced the mineralization of pyrene in the soil compared to soil without sludge, and the most extensive mineralization was observed when the sludge was kept in a lump. The number of protozoa, heterotrophic bacteria and pyrene-mineralizing bacteria was much higher in the sludge compared to the soil. The amendment of sludge did not affect the number of protozoa and bacteria in the surrounding soil, which indicated that organic contaminants in the sludge had a little effect on the number of protozoa and bacteria in the surrounding soil
AB - Hydrophobic contaminants sorb to sludge in wastewater treatment plants and enter the soil environment when the sludge is applied to agricultural fields. The mineralization of pyrene was examined in soil, in sludge mixed homogeneously into soil, and in sludge-soil systems containing a lump of sludge. Sludge-amendment enhanced the mineralization of pyrene in the soil compared to soil without sludge, and the most extensive mineralization was observed when the sludge was kept in a lump. The number of protozoa, heterotrophic bacteria and pyrene-mineralizing bacteria was much higher in the sludge compared to the soil. The amendment of sludge did not affect the number of protozoa and bacteria in the surrounding soil, which indicated that organic contaminants in the sludge had a little effect on the number of protozoa and bacteria in the surrounding soil
U2 - 10.1016/S0045-6535(00)00602-0
DO - 10.1016/S0045-6535(00)00602-0
M3 - Journal article
VL - 45
SP - 625
EP - 634
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
IS - 4-5
ER -
ID: 8673330