PMID- 36437082
OWN - NLM
STAT- MEDLINE
DCOM- 20221129
LR  - 20221129
IS  - 0250-3301 (Print)
IS  - 0250-3301 (Linking)
VI  - 43
IP  - 11
DP  - 2022 Nov 8
TI  - [Adsorption of Phosphate and Heavy Metals by Lanthanum Modified Zeolite and Its 
      Performance in Sediment Inactivation].
PG  - 5106-5114
LID - 10.13227/j.hjkx.202202022 [doi]
AB  - Due to the large scale of mining and smelting activities, considerable amounts of 
      heavy metals are discharged into the environment and accumulate in the sediment 
      of rivers and lakes. The combined pollution of heavy metals and the intrinsic 
      phosphorus in sediment calls for novel remediation technologies. In this study, 
      lanthanum-modified zeolite (LMZ) was employed as an inactivation agent for the 
      immobilization of phosphorus, zinc, and lead in sediments. The adsorption 
      capacities as well as the inactivation performance of LMZ for P, Zn, and Pb were 
      investigated, and the adsorption mechanisms were explored via desorption 
      experiments, X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). 
      The results indicated that the adsorption maximums of LMZ for P, Zn, and Pb were 
      53.76, 27.70, and 123.45 mg.g(-1), respectively. Pre-adsorption of Zn and Pb had 
      a negligible effect on the P adsorption by LMZ, whereas the adsorption of Zn and 
      Pb were inhibited significantly by the pre-adsorption. P, Zn, and Pb in the 
      sediment were transformed to more stable or less bioavailable forms by dosing 
      0.83% and 1.66% weight percentages of LMZ. It was found that P, Zn, and Pb were 
      adsorbed through the formation of inner-sphere complexes. Further, desorption 
      experiments and XRD patterns suggested that electrostatic attraction and surface 
      precipitation also contributed to the adsorption of Zn and Pb, respectively.
FAU - Wang, Zhe
AU  - Wang Z
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
FAU - Zhu, Jun
AU  - Zhu J
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
AD  - School of Environmental & Chemical Engineering, Shanghai University, Shanghai 
      200444, China.
FAU - Li, Wen
AU  - Li W
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
FAU - Yan, De-Xin
AU  - Yan DX
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
FAU - Dong, Wen
AU  - Dong W
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
FAU - Liu, Yu-Ling
AU  - Liu YL
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
FAU - Li, Jia-Ke
AU  - Li JK
AD  - State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an 
      University of Technology, Xi'an 710048, China.
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Huan Jing Ke Xue
JT  - Huan jing ke xue= Huanjing kexue
JID - 8405344
RN  - 1318-02-1 (Zeolites)
RN  - 6I3K30563S (Lanthanum)
RN  - 0 (Phosphates)
RN  - 2P299V784P (Lead)
RN  - 0 (Metals, Heavy)
RN  - 27YLU75U4W (Phosphorus)
SB  - IM
MH  - *Zeolites/chemistry
MH  - Lanthanum
MH  - Phosphates/chemistry
MH  - Adsorption
MH  - Lead
MH  - *Metals, Heavy/chemistry
MH  - Phosphorus
OTO - NOTNLM
OT  - heavy metals
OT  - inactivation
OT  - lanthanum-modified zeolite
OT  - phosphorus
OT  - sediment
EDAT- 2022/11/28 06:00
MHDA- 2022/11/30 06:00
CRDT- 2022/11/27 21:23
PHST- 2022/11/27 21:23 [entrez]
PHST- 2022/11/28 06:00 [pubmed]
PHST- 2022/11/30 06:00 [medline]
AID - 10.13227/j.hjkx.202202022 [doi]
PST - ppublish
SO  - Huan Jing Ke Xue. 2022 Nov 8;43(11):5106-5114. doi: 10.13227/j.hjkx.202202022.