Abstract
In this study, major toxicants in pigment wastewaters (i.e. raw wastewater and effluent) were determined by toxicity identification evaluations (TIEs), and changes in their toxicities due to combined gamma-ray (γ-ray) and ozone treatments were evaluated. From TIE results using Daphnia magna, Cr(VI) and o-toluidine were identified as major toxicants in the raw wastewater with concentrations of 2.47 and 25.3 mg l -1, respectively. This was confirmed by subsequent spiking and mass balance approaches. For effluent, TIE results suggested that organic anions were likely responsible for the observed toxicities. Toxicity reduction tests showed that γ-rays with ozone treatment after coagulation was more efficient in reducing toxicities in the raw wastewater (3.9-2.0 TU) than γ-ray treatment alone (3.9-3.1 TU). For pigment effluent, γ-ray/O 3 treatment resulted in a complete removal of the acute toxicity.
| Original language | English |
|---|---|
| Pages (from-to) | 949-957 |
| Number of pages | 9 |
| Journal | Chemosphere |
| Volume | 70 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2008 Jan 1 |
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Keywords
- Chromium
- Daphnia magna
- Gamma-rays
- o-Toluidine
- TIE
- TRE
ASJC Scopus subject areas
- Environmental Chemistry
- Environmental Science(all)
Cite this
Toxicity identification and reduction of wastewaters from a pigment manufacturing factory. / Jo, Hun Je; Park, Eun Joo; Cho, Ki Jong; Kim, Eun Hee; Jung, Jinho.
In: Chemosphere, Vol. 70, No. 6, 01.01.2008, p. 949-957.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Toxicity identification and reduction of wastewaters from a pigment manufacturing factory
AU - Jo, Hun Je
AU - Park, Eun Joo
AU - Cho, Ki Jong
AU - Kim, Eun Hee
AU - Jung, Jinho
PY - 2008/1/1
Y1 - 2008/1/1
N2 - In this study, major toxicants in pigment wastewaters (i.e. raw wastewater and effluent) were determined by toxicity identification evaluations (TIEs), and changes in their toxicities due to combined gamma-ray (γ-ray) and ozone treatments were evaluated. From TIE results using Daphnia magna, Cr(VI) and o-toluidine were identified as major toxicants in the raw wastewater with concentrations of 2.47 and 25.3 mg l -1, respectively. This was confirmed by subsequent spiking and mass balance approaches. For effluent, TIE results suggested that organic anions were likely responsible for the observed toxicities. Toxicity reduction tests showed that γ-rays with ozone treatment after coagulation was more efficient in reducing toxicities in the raw wastewater (3.9-2.0 TU) than γ-ray treatment alone (3.9-3.1 TU). For pigment effluent, γ-ray/O 3 treatment resulted in a complete removal of the acute toxicity.
AB - In this study, major toxicants in pigment wastewaters (i.e. raw wastewater and effluent) were determined by toxicity identification evaluations (TIEs), and changes in their toxicities due to combined gamma-ray (γ-ray) and ozone treatments were evaluated. From TIE results using Daphnia magna, Cr(VI) and o-toluidine were identified as major toxicants in the raw wastewater with concentrations of 2.47 and 25.3 mg l -1, respectively. This was confirmed by subsequent spiking and mass balance approaches. For effluent, TIE results suggested that organic anions were likely responsible for the observed toxicities. Toxicity reduction tests showed that γ-rays with ozone treatment after coagulation was more efficient in reducing toxicities in the raw wastewater (3.9-2.0 TU) than γ-ray treatment alone (3.9-3.1 TU). For pigment effluent, γ-ray/O 3 treatment resulted in a complete removal of the acute toxicity.
KW - Chromium
KW - Daphnia magna
KW - Gamma-rays
KW - o-Toluidine
KW - TIE
KW - TRE
UR - http://www.scopus.com/inward/record.url?scp=36448949031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36448949031&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2007.08.018
DO - 10.1016/j.chemosphere.2007.08.018
M3 - Article
C2 - 17892894
AN - SCOPUS:36448949031
VL - 70
SP - 949
EP - 957
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
IS - 6
ER -