Pb2+ adsorption by calcium silicate hydrate synthesized from steel slag
Artikel i vetenskaplig tidskrift, 2015

This study aims to investigate the adsorption properties of Pb2+ by calcium silicate hydrate synthesized from steel slag. The influence of various factors on the adsorption properties was investigated. The static desorption test was conducted to investigate the leaching of Pb2+. The kinetic model and isotherm model of adsorption are then discussed. Results show that Pb2+ adsorption capacity of C-S-H depends on Ca/Si ratios. Kinetic adsorption data is in consistence with Lagegren pseudo-second-order model, and steady-state data fits to Langmuir isothermal model. Leaching result demonstrates that Pb2+ ions are stably adsorbed by C-S-H structures.

adsorption model

calcium silicate hydrates

steel slag

Pb2+ adsorption

Författare

Shuping Wang

Chalmers, Bygg- och miljöteknik, Byggnadsteknologi

Xiaoqin Peng

Luping Tang

Chalmers, Bygg- och miljöteknik, Byggnadsteknologi

Nordic Concrete Research

0800-6377 (ISSN)

Vol. 52 77-92

Ämneskategorier

Materialteknik

Samhällsbyggnadsteknik

Styrkeområden

Building Futures

Materialvetenskap