Affiliations: Institute of Environmental Science, Zhejiang
University, Hangzhou 310029, China | Department of Applied Chemistry, Zhejiang University
of Technology, Hangzhou 310032, China | College of Civil Engineering and Architecture,
Zhejiang University of Technology, Hangzhou 310032, China
Abstract: The utility of nickel/iron in the remediation of
atrazine-contaminated water was investigated. The experimental results showed
that nickel/iron had effective catalytic activity in dechlorinating atrazine
under acidic conditions. The dechlorination reaction approximately followed the
first-order kinetics under the experimental conditions (nickel/iron: 1.0 g/250
ml; C_{atrazine}=20.0 mg/L), the reaction rate increased
with decreasing pH value of the reaction solution and increasing the proportion
of Ni:Fe within 2.95%. For condition with 2.95% nickel/iron, the reaction rate
constants were 0.07518 (R=0.9927), 0.06212 (R=0.9846) and 0.00131
min^{-1} (R=0.9565) at pH=2.0, 3.0 and 4.0, respectively.
HPLC analysis was used to monitor the decline of atrazine concentration.
