Coal-based activated carbon (AC) was treated chemically with nitric acid, sodium hydroxide and ammonia, and its ability to adsorb bromate was investigated. Several techniques were used to characterize the physicochemical properties of these materials, including surface area, pHpzc, and Boehm titration. Results indicated that surface physical and chemical properties can influence the adsorption uptake of bromate on ACs simultaneously. Surface basicity and pHpzc were both found to influence the electrostatic interactions between the bromate ions and the surface of the carbon. A correlation was found between basic groups and the adsorption capacity for bromate. The adsorption capacity of the carbon was found to be linearly proportional to the amount of basic groups on the surface. The bromate adsorption data collected from all the samples were found to fit the Toth isotherm model, indicating that the bromate adsorption process could occur on heterogeneous surfaces.
Skip Nav Destination
Article navigation
Research Article|
May 01 2012
Removal of bromate from water using modified activated carbon Available to Purchase
Tongmian Liu;
Tongmian Liu
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Fuyi Cui;
Fuyi Cui
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Dongmei Liu;
Dongmei Liu
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Zhiwei Zhao;
Zhiwei Zhao
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Zhiquan Liu;
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
E-mail: [email protected]
Search for other works by this author on:
Huan Wang;
Huan Wang
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Qi Zhu
Qi Zhu
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
Search for other works by this author on:
Water Supply (2012) 12 (3): 398–405.
Article history
Received:
August 08 2011
Accepted:
December 02 2011
Citation
Tongmian Liu, Fuyi Cui, Dongmei Liu, Zhiwei Zhao, Zhiquan Liu, Huan Wang, Qi Zhu; Removal of bromate from water using modified activated carbon. Water Supply 1 May 2012; 12 (3): 398–405. doi: https://doi.org/10.2166/ws.2012.130
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00