Efficient natural organic matter removal from water using nano-MgO coupled with microfiltration membrane separation
采用纳米MgO耦合微滤膜分离技术高效去除水中天然有机物
作者: Juanjuan ZhouYan XiaYanyan GongWanbin LiZhanjun Li
作者单位: 1Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
刊名: Science of the Total Environment, 2020, Vol.711
来源数据库: Elsevier Journal
DOI: 10.1016/j.scitotenv.2019.135120
关键词: Natural organic matterMgOAdsorptionMembrane separationAnnealing regeneration
英文摘要: Abstract(#br)Excess natural organic matter (NOM) in water not only lead to unpleasant black color and dissolved oxygen depletion in wastewater and natural water body but also causes carcinogenic chlorinated organic byproduct during drinking water chlorine disinfection. We try to develop a novel cost-effective and green technology for water NOM removal. In our simulated NOM removal process using humic acid (HA) as typical organic matter, we find that mesoporous nano-MgO performs an abnormally high NOM removal capacity (1260 mg-HA/g-MgO, or 446 mgC/g-MgO) when coupled with microfiltration membrane separation, which can’t be illustrated by traditional adsorption mechanism. Actually, Mg 2+ from dissolved Mg(OH) 2 contributes ∼ 92% NOM removal via coagulation while Mg(OH) 2 is responsible for...
全文获取路径: Elsevier  (合作)
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影响因子:3.258 (2012)

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关键词翻译
关键词翻译
  • removal 消去
  • Adsorption 吸附
  • natural 自然的
  • separation 分选
  • organic 有机的
  • matter 物质
  • coupled 耦合
  • membrane 
  • regeneration 再生
  • water