Experimental study on treatment of nickel wastewater with sodium sulfide
ZHAO Yingli
XIE Hongyong
CHEN Weidong
Abstract：Sodium sulfide was used in the precipitation treatment of nickel wastewater.The effects of chemicals dosage,reaction time and pH value on the removal rate of the nickel ions in the wastewater were investigated.The results show that the excess ratio of Na2S is 1.1,with stiring 30 min at a rate of about 30 r/min,the removal rate of nickel is 95.2％,XRD analysis showes a dense nickel hydroxide precipitate.The hydrogen sulfide produced during the process can be used to treat the wastewater.
Keywords：sodium sulfidenickel wastewaternickel precipitation
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 94-97 )