201. Enhancement of Coagulation Process with Floatation for the Treatment of Dyeing Wastewater
- Author
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Ting Wang, Yuan Hui Wu, Hui Ting Zhou, Mei Qiang Cai, Chun Jin Wu, Chun Hui Du, and Li Guang Wu
- Subjects
Chromatography ,Wastewater ,Dyeing wastewater ,Chemistry ,Scientific method ,Chemical oxygen demand ,General Engineering ,Coagulation (water treatment) - Abstract
Coagulation process enhanced with floatation was applied to treat dyeing wastewater generated from the production process of textile. The efficiency was mainly evaluated in terms of the chemical oxygen demand (COD) removal of mixed wastewater. Comparing the coagulation experiment with coagulation-floatation experiment on the performance of COD removal for the dyeing wastewater, we can find that floatation promote the effect of coagulation. The results show that: the COD removal of the dyeing wastewater in the coagulation-floatation experiment can reach 68% after floatation with the speed of 1.2 L/min for 4 min and maintaining standstill for 90 min, which is 17% more than the result appeared in coagulation experiment, under the conditions of the dosage of AlCl3and PAM is 100 mg/L and 15 mg/L, respectively.
- Published
- 2013