Optimization of Operating Conditions on Ceramic Printing Wastewater Treatment with Coagulation and Sedimentation Method

Abstract:

The ceramic printing wastewater was treated with coagulation sedimentation method by adopted AlCl₃ polymerization (PAC) as a coagulant. In order to optimize the wastewater treatment of operating conditions, with absorbance, turbidity and conductivity for testing index, the PAC dosing quantity, stirring time, stirring intensity and influx water pH value on the influence of the wastewater treatment. The results show that the wastewater absorbance and turbidity with PAC dosing quantity increase, mixing time extension and stirring intensity increase present reduced trend, with the water pH increases present first decreases trend of increase; Proper operating conditions of wastewater treatment: PAC dosing quantity 90 mg/L, mixing time 15 min, mixing strength medium speed and influx water pH value is about seven. On this condition, ceramic printing wastewater treatment of effluent decolorization rate reached 86.9%, turbidity removal rate reached 92.5%, conductivity is 2.05 x 10³ s/cm.

• Periodical: Advanced Materials Research (Volume 664)
• Pages: 383-389
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.664.383
• Online since: February 2013
• Authors: Yong Li Zhang, Xu Biao Yu, Chao Hai Wei, Ling Ling Shang, Ce Shi
• Keywords: Ceramic Printing Wastewater, Coagulation, Decolorization Rate, PAC, Sedimentation, Turbidity Removal Rate

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