Dynamic pesticide removal with activated carbon fibers
- 27 November 2000
- journal article
- Published by Elsevier BV in Water Research
- Vol. 35 (2), 516-520
- https://doi.org/10.1016/s0043-1354(00)00262-1
Abstract
Rapid small-scale minicolumn tests were carried out to simulate the atrazine adsorption in water phase with three pelletized pitch-based activated carbon fibers (ACF) and one commercial granular activated carbon (GAC). Initial atrazine solutions were prepared with pretreated ground water. Minicolumn tests showed that the performance of highly activated carbon fibers (surface area of 1700 m2/g) is around 7 times better than the commercial GAC (with surface area at around 1100 m2/g), whereas carbon fibers with medium activation degree (surface area of 1500 m2/g) had a removal efficiency worse than the commercial carbon. The high removal efficiency of the highly activated ACF is due to the wide-opened microstructure of the material, with an appreciable contribution of the low size mesopores, maintaining at these conditions a fast kinetic adsorption rate rather than a selective adsorbent for micropollutants vs. natural organic matter.Keywords
This publication has 5 references indexed in Scilit:
- Competitive adsorption in natural water: role of activated carbon pore sizeWater Research, 1999
- Adsorption onto activated carbon fibers: Application to water and air treatmentsCarbon, 1997
- Activated carbon fiber: Fundamentals and applicationsCarbon, 1994
- Predicting GAC Performance With Rapid Small‐Scale Column TestsJournal AWWA, 1991
- Homogeneous and heterogeneous micropore structures in carbonaceous adsorbentsJournal of Colloid and Interface Science, 1980