Fast removal of Pb(II) and Cu(II) from contaminated water by groundwater treatment waste: impact of sorbent composition

被引：4
作者：
Zubryte, Edita [1 ]
Gefeniene, Audrone [1 ,2 ]
Kauspediene, Danute [1 ]
Ragauskas, Romas [1 ]
Binkiene, Rima [1 ]
Selskiene, Ausra [1 ]
Pakstas, Vidas [1 ]
机构：
[1] Ctr Phys Sci & Technol, Dept Chem Technol, Vilnius, Lithuania
[2] Vytautas Magnus Univ, Educ Acad, Kaunas, Lithuania
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 16期
关键词：
Groundwater treatment waste; Pb(II); Cu(II); removal; kinetic study; isotherms; TREATMENT RESIDUALS; AQUEOUS-SOLUTIONS; HEAVY-METALS; SORPTION MECHANISM; TREATMENT-PLANT; LEAD SORPTION; ADSORPTION; PHOSPHATE; SLUDGE; IRON;
D O I：
10.1080/01496395.2019.1655455
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A non-hazardous groundwater treatment waste (GWTW) was examined as a low-cost sorbent for Pb(II) and Cu(II) ions. The content of the dominant elements in GWTW was as follows: 78% Fe2O3, 7.4% P2O5, 7.4% CaO and 5.2% SiO2. The removal of Pb(II) and Cu(II) was fast, and more than 67-95% of ions were accumulated by GWTW during the first 3 min. The sorption capacity of GWTW depends on solution pH, concentration and temperature. Equilibrium data fitted well with Langmuir-Freundlich and Langmuir-partition models. The inherently formed nano-adsorbent could be utilized for the treatment of water contaminated with Pb(II) and Cu(II) ions.
引用
收藏
页码：2855 / 2868
页数：14
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