PUBLICATION
Reduction in toxicity of coking wastewater to aquatic organisms by vertical tubular biological reactor
- Authors
- Zhou, S., Watanabe, H., Wei, C., Wang, D., Zhou, J., Tatarazako, N., Masunaga, S., Zhang, Y.
- ID
- ZDB-PUB-150224-4
- Date
- 2015
- Source
- Ecotoxicology and environmental safety 115: 217-222 (Journal)
- Registered Authors
- Zhang, Ying
- Keywords
- Acute toxicity, Bio-toxicity, Daphnia, Phenol removal, Toxicity removal, Toxicity unit (TU)
- MeSH Terms
-
- Animals
- Biological Oxygen Demand Analysis
- Coke/toxicity*
- Crustacea/drug effects
- Daphnia/drug effects
- Haptophyta/drug effects
- Industrial Waste*
- Phenol/analysis
- Photobacterium/drug effects
- Toxicity Tests
- Waste Management/methods*
- Wastewater/toxicity*
- Zebrafish
- PubMed
- 25706086 Full text @ Ecotoxicol. Environ. Saf.
Citation
Zhou, S., Watanabe, H., Wei, C., Wang, D., Zhou, J., Tatarazako, N., Masunaga, S., Zhang, Y. (2015) Reduction in toxicity of coking wastewater to aquatic organisms by vertical tubular biological reactor. Ecotoxicology and environmental safety. 115:217-222.
Abstract
We conducted a battery of toxicity tests using photo bacterium, algae, crustacean and fish to evaluate acute toxicity profile of coking wastewater, and to evaluate the performance of a novel wastewater treatment process, vertical tubular biological reactor (VTBR), in the removal of toxicity and certain chemical pollutants. A laboratory scale VTBR system was set up to treat industrial coking wastewater, and investigated both chemicals removal efficiency and acute bio-toxicity to aquatic organisms. The results showed that chemical oxygen demand (COD) and phenol reductions by VTBR were approximately 93% and 100%, respectively. VTBR also reduced the acute toxicity of coking wastewater significantly: Toxicity Unit (TU) decreased from 21.2 to 0.4 for Photobacterium phosphoreum, from 9.5 to 0.6 for Isochrysis galbana, from 31.9 to 1.3 for Daphnia magna, and from 30.0 to nearly 0 for Danio rerio. VTBR is an efficient treatment method for the removal of chemical pollutants and acute bio-toxicity from coking wastewater.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping