亚热带农业研究
亞熱帶農業研究
아열대농업연구
SUBTROPICAL AGRICULTURE RESEARCH
2012年
2期
105-112
,共8页
物理吸附剂%模拟废水%重金属%吸附效果
物理吸附劑%模擬廢水%重金屬%吸附效果
물리흡부제%모의폐수%중금속%흡부효과
physical adsorbent%simulated wastewater%heavy metal%adsorption effect
采用模拟重金属废水的正交试验设计,研究5种物理吸附剂对模拟废水中重金属的吸附效果,探讨pH、吸附剂加入量和振荡时间等因素对吸附效果的影响。结果表明,在一定pH、吸附剂加入量和振荡时间下,5种物理吸附剂对6种重金属（Pb、Cd、Mn、Zn、Cr、Ni）均有较好的吸附效果,其中活性炭对Pb、Ni和Cr的吸附率最大,木炭对Mn和Zn的吸附率最大,草木灰对Cd的吸附率最大。pH、吸附剂加入量和振荡时间对活性炭、草木灰和木炭吸附重金属效果（活性炭对Cd、Mn、Zn、Ni,木炭对Pb、Mn和Cd及草木灰对6种重金属）的影响为：pH〉吸附剂加入量〉振荡时间,说明pH与吸附剂加入量为主要影响因素。活性炭、木炭和草木灰对重金属废水的最佳吸附条件为：吸附剂加入量40 g.L-1,pH 10-10.5,振荡时间180 min。
採用模擬重金屬廢水的正交試驗設計,研究5種物理吸附劑對模擬廢水中重金屬的吸附效果,探討pH、吸附劑加入量和振盪時間等因素對吸附效果的影響。結果錶明,在一定pH、吸附劑加入量和振盪時間下,5種物理吸附劑對6種重金屬（Pb、Cd、Mn、Zn、Cr、Ni）均有較好的吸附效果,其中活性炭對Pb、Ni和Cr的吸附率最大,木炭對Mn和Zn的吸附率最大,草木灰對Cd的吸附率最大。pH、吸附劑加入量和振盪時間對活性炭、草木灰和木炭吸附重金屬效果（活性炭對Cd、Mn、Zn、Ni,木炭對Pb、Mn和Cd及草木灰對6種重金屬）的影響為：pH〉吸附劑加入量〉振盪時間,說明pH與吸附劑加入量為主要影響因素。活性炭、木炭和草木灰對重金屬廢水的最佳吸附條件為：吸附劑加入量40 g.L-1,pH 10-10.5,振盪時間180 min。
채용모의중금속폐수적정교시험설계,연구5충물리흡부제대모의폐수중중금속적흡부효과,탐토pH、흡부제가입량화진탕시간등인소대흡부효과적영향。결과표명,재일정pH、흡부제가입량화진탕시간하,5충물리흡부제대6충중금속（Pb、Cd、Mn、Zn、Cr、Ni）균유교호적흡부효과,기중활성탄대Pb、Ni화Cr적흡부솔최대,목탄대Mn화Zn적흡부솔최대,초목회대Cd적흡부솔최대。pH、흡부제가입량화진탕시간대활성탄、초목회화목탄흡부중금속효과（활성탄대Cd、Mn、Zn、Ni,목탄대Pb、Mn화Cd급초목회대6충중금속）적영향위：pH〉흡부제가입량〉진탕시간,설명pH여흡부제가입량위주요영향인소。활성탄、목탄화초목회대중금속폐수적최가흡부조건위：흡부제가입량40 g.L-1,pH 10-10.5,진탕시간180 min。
The heavy metal absorption effect of five physical adsorbents from simulated wastewater was conducted by the orthoganal design,the influence of factors such as pH,addition amount and shake time on heavy metal absorption were analyzed.The results showed that five physical adsorbents had high absorbing efficiency to Pb,Cd,Mn,Zn,Cr and Ni under certain pH,addition amount and shake time.Active carbon had the maximum absorption rate to Pb,Cr and Ni,charcoal had the maximum absorption rate to Mn and Zn and plant ash had the maximum absorption rate to Cd.These three adsorbents were suitable for application in the treatment of heavy metal waste water.The influence of different factors on Mn,Zn,Cd and Ni of active carbon,Pb,Cd and Mn of charcoal and plant ash of six kinds of heavy metal were in the order of pHadsorbent addition amountshake time.It demonstrated that pH and absorbent addition amount were the main factors of heavy metal absorption.The optimum absorption conditions of heavy metal from waste water by active carbon,charcoal and plant ash were absorbent addition amount 40.0 g·L-1,pH 10.0-10.5 and 180 minutes shake time.
