Experimental Research on Mercury-Containing Wastewater in PVC Production by Fly Ash Processing Calcium Carbide Method

Abstract:

To study the removal capacity of modified fly ash in wastewater containing mercury ions under different conditions, the dust from a calcium carbide furnace was added to fly ash, and the pyrogenic process was employed to modify the fly ash. The result indicated that the wastewater had a pH value of 9, the modified fly ash dosage was 0.2 g, the adsorption equilibrium time was 40 minutes, the reaction temperature was 30 °C, and the removal rate could reach 91.9%. Using modified fly ash in polyvinyl chloride production via the calcium carbide method to remove mercury-containing wastewater can help meet the government-prescribed emission standard. This method has advantages such as positive treatment effect, simple operation, and low operating cost.

• Periodical: Advanced Materials Research (Volume 878)
• Pages: 578-584
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.878.578
• Online since: January 2014
• Authors: Yan Li, Ping Sun
• Keywords: Adsorption, Dust of Calcium Carbide Furnace, Fly Ash (FA), Mercury-Containing Wastewater

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