Kang Haiyan Yang Zhiguang Huang Xiaonan, . REMOVAL OF HEAVY METALS USING NANOSCALE ZERO-VALENT IRONIMMOBILIZED BY SODIUM ALGINATE/β-CYCLODEXTRIN[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 144-147. doi: 10.13205/j.hjgc.201506032
Citation:
Kang Haiyan Yang Zhiguang Huang Xiaonan, . REMOVAL OF HEAVY METALS USING NANOSCALE ZERO-VALENT IRON
IMMOBILIZED BY SODIUM ALGINATE/β-CYCLODEXTRIN[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 144-147. doi: 10.13205/j.hjgc.201506032
Kang Haiyan Yang Zhiguang Huang Xiaonan, . REMOVAL OF HEAVY METALS USING NANOSCALE ZERO-VALENT IRONIMMOBILIZED BY SODIUM ALGINATE/β-CYCLODEXTRIN[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 144-147. doi: 10.13205/j.hjgc.201506032
Citation:
Kang Haiyan Yang Zhiguang Huang Xiaonan, . REMOVAL OF HEAVY METALS USING NANOSCALE ZERO-VALENT IRON
IMMOBILIZED BY SODIUM ALGINATE/β-CYCLODEXTRIN[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 144-147. doi: 10.13205/j.hjgc.201506032
To avoid the oxidation of nano-Fe0 in the air，nanoparticles were immobilized in sodium alginate /β-cyclodextrin gelbeads．
The effects of the ratio of raw materials and cross-linker concentration et al． on gel-beads properties were investigated．
Optimal reactivity was received with the nano-Fe0 immobilized by 1. 5% SA，0. 5% β-CD and with 4. 0% CaCl2 as the crosslinker．
Much higher removal efficiency was obtained in Pb2 + removal compared with Cd2 + ． Pb2 + ( 200 mg /L) with 99. 3%
removal ratio was obtained after 4 h． Pb2 + was removed by gel-beads combined with Fe0 ． High reactivity was still achieved
after 120 days with the immobilized nano-Fe0 ．
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