Comparison between mixing and shaking techniques during the destabilization-hydrolysis of the acid mine drainage (AMD) using Ca(OH)2 and Mg(OH)2
作者: I. ONtwampe,
刊名: Journal of Chemical Engineering and Materials Science, 2015, Vol.6 (3), pp.15-33
来源数据库: Academy Journals
DOI: 10.5897/JCEMS2015.0212
关键词: CoagulantsShakingAgitationSettlePHTurbidity.
原始语种摘要: Acid mine drainage (AMD) is detrimental to both humans and the ecosystem, and contains sulphuric acid and heavy metals, which have to be removed by dosing the coagulants. A 200 mL sample of AMD, emanating from a mining area in South Africa was poured into 500 mL glass beakers or Erlenmeyer flasks and were dosed with 0.043 M Ca(OH)2, 0.043 M Mg(OH)2 and synthetic 0.043 M CaMg.2(OH)2 and treated in a jar test or shaking apparatus employing rapid agitation at 250 rpm for 2 min. Each batch of samples was allowed to settle for an hour after which the pH, conductivity and turbidity were measured. The results showed that the turbidity removal efficiency exhibited by Ca(OH)2 or Mg(OH)2, and synthetic CaMg.2(OH)2 dosage of a range 30 to 60 mL was identical all above 90%. Effective wastewater...
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  • AMD Advanced Micro Devices
  • removal 消去
  • turbidity 浑浊度
  • wastewater 废水
  • solution 溶液
  • hydrolysis 水解
  • during 在的期间
  • settle 沉降
  • agitation 搅拌
  • treatment 处理