Toxicity assessment of Tehran water treatment sludges using bioassay tests

被引:7
|
作者
Ranjbar, Leila [1 ]
Eslami, Akbar [2 ]
Yazdanbakhsh, Ahmadreza [1 ]
Saghi, Mohammad Hossien [1 ]
机构
[1] Shahid Beheshti Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran
[2] Shahid Beheshti Univ Med Sci, Environm & Occupat Hazards Control Res Ctr, Tehran, Iran
关键词
Water treatment sludge; eco toxicity; acute and chronic; Daphnia magna; Eisenia fetida; LD50; EARTHWORM EISENIA-FOETIDA; DAPHNIA-MAGNA; TREATMENT RESIDUALS; ALUM SLUDGE; REPRODUCTION; SURVIVAL; GROWTH; COPPER; METALS; SOILS;
D O I
10.1080/15569543.2017.1312453
中图分类号
R99 [毒物学(毒理学)];
学科分类号
100405 ;
摘要
The 48-, 72- and 96-h acute toxicity and 14-d chronic toxicity of the sludge of treatment plant No. 1, 3 and 5 were examined based on the survival percentage and fertility changes of Daphnia magna and Eisenia fetida. The highest percentage of D. magna death in the acute toxicity test appeared in treatment plant No. 1 sludge sample. The 48-h and 72-h LC50 of treatment plant No. 1 sludge on D. magna were calculated to be 86.81 and 44.307% volume of the sludge, respectively. The release of untreated sludge into the environment could adversely affect the life of organisms.
引用
收藏
页码:27 / 34
页数:8
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