Assessing toxicities of industrial effluents and 1,4-dioxane using sulphur-oxidising bacteria in a batch test
In this study, the qualities of the final effluents from nine different industries (A, B, C, D, E, F, G, H and I) discharging 1,4-dioxane mainly as effluents were assessed using sulphur-oxidising bacteria (SOB) as a test micro-organism in batch mode. Results showed that effluent from industry '...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/9192/1/Assessing_toxicities_of_industrial_effluents_and_1%2C4-dioxane_using_sulphur-oxidising_bacteria_in_a_batch_test.pdf http://eprints.um.edu.my/9192/ http://www.scopus.com/inward/record.url?eid=2-s2.0-84860874051&partnerID=40&md5=07cf0d264033dabe56aeb157bd0f8fd6 http://onlinelibrary.wiley.com/doi/10.1111/j.1747-6593.2011.00280.x/full |
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| Summary: | In this study, the qualities of the final effluents from nine different industries (A, B, C, D, E, F, G, H and I) discharging 1,4-dioxane mainly as effluents were assessed using sulphur-oxidising bacteria (SOB) as a test micro-organism in batch mode. Results showed that effluent from industry 'B' was the most toxic of all the effluents tested, followed by E, C and A effluents. An EC50 value of 13 was obtained for effluent from B, whereas with E, C and A effluents, the EC50 values of 23, 25 and 29 were found, respectively. Similarly, batch tests were performed in order to evaluate the potential for 1,4-dioxane to inhibit growth on SOB. The lowest test concentration of 1,4-dioxane (12μg/L) resulted in 17 of inhibition of SOB, whereas the highest test concentration (3.125mg/L) resulted in >75 of the inhibition. An EC50 value of 0.105mg/L was obtained for 1,4-dioxane. © 2011 The Authors. Water and Environment Journal © 2011 CIWEM. |
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