AI SearchTreatment of chromium wastewater with regionally available reagents
Call Number: AIT RSPR no. EV-87-2 Material type:
SeriesSeries: Asian Institute of Technology. Research studies project report ; no. EV-87-2Publication details: Bangkok : Asian Institute of Technology, 1987Description: 83 pSubject(s): Online resources: Dissertation note: Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1987 Summary: This study aimed to evaluate the flocculation and sedimentation performances in treating chromium wastewater by a few regionally available reagents-Kaolinite Clay (mesh no. 275, 380 and 500), Bentonite, Diatomite, and Alum. The experiment started at finding the dosage requirements and detentio~ time required in a suitable pH range for the reduction of hexavalent chromium to trivalent chromium by Ferrous Sulfate and Sodium Metabisulfite. Varying amounts of flocculants (200, 300 and 400 mq z L) were used in Jar Tests to find the optimum dosage. The results from the Jar Test were applied to Scale Plant to check the flocculation capability during a continuous flow. a Pilot It was found that Clay can be used to' flocculate the precipitates of metal hydroxides in a more concentrated sludge form.
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22-AIT Thesis (Replacement)
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Asian Institute of Technology Library AIT Publications | AIT RSPR no. EV-87-2 (Browse shelf(Opens below)) | 3 | Available | 30050120613525 | |||||||||||||
40-Archives
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Asian Institute of Technology Library Archives | AIT RSPR no. EV-87-2 (Browse shelf(Opens below)) | Available | 30050120220636 | ||||||||||||||
20-AIT Publication
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Asian Institute of Technology Library AIT Publications | AIT RSPR no. EV-87-2 (Browse shelf(Opens below)) | 1 | Available | 30050121074362 |
A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1987
This study aimed to evaluate the flocculation and sedimentation performances in treating chromium wastewater by a few regionally available reagents-Kaolinite Clay (mesh no. 275, 380 and 500), Bentonite, Diatomite, and Alum. The experiment started at finding the dosage requirements and detentio~ time required in a suitable pH range for the reduction of hexavalent chromium to trivalent chromium by Ferrous Sulfate and Sodium Metabisulfite. Varying amounts of flocculants (200, 300 and 400 mq z L) were used in Jar Tests to find the optimum dosage. The results from the Jar Test were applied to Scale Plant to check the flocculation capability during a continuous flow. a Pilot It was found that Clay can be used to' flocculate the precipitates of metal hydroxides in a more concentrated sludge form.
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