scholarly journals Performance evaluation of granular activated carbon system at Pantex: Rapid small-scale column tests to simulate removal of high explosives from contaminated groundwater

1998 ◽  
Author(s):  
J.L. Henke ◽  
G.E. Speitel
Keyword(s):  
Performance Evaluation ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Small Scale ◽  
Contaminated Groundwater ◽  
Column Tests ◽  
High Explosives ◽  
Carbon System

scholarly journals Assessment of the breakthrough of micropollutants in full-scale granular activated carbon adsorbers by rapid small-scale column tests and a novel pilot-scale sampling approach

2020 ◽  
Vol 6 (10) ◽  
pp. 2742-2751 ◽  
Author(s):  
Tony Merle ◽  
Detlef R. U. Knappe ◽  
Wouter Pronk ◽  
Bernadette Vogler ◽  
Juliane Hollender ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Service Life ◽  
Granular Activated Carbon ◽  
Pilot Scale ◽  
Full Scale ◽  
Small Scale ◽  
Column Tests ◽  
Sampling Approach

This study aimed to compare three approaches for predicting the service life of full-scale GAC adsorbers for the removal of micropollutants.

Improved removal of arsenic from groundwater using pre-corroded steel and iron tailored granular activated carbon

2010 ◽  
Vol 61 (2) ◽  
pp. 441-453 ◽  
Author(s):  
J. Zou ◽  
F. S. Cannon ◽  
W. Chen ◽  
B. A. Dempsey
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Small Scale ◽  
Iron Release ◽  
Iron Corrosion ◽  
Column Tests ◽  
Reducing Conditions ◽  
Perforated Sheets ◽  
Removal Of Arsenic ◽  
Corrosion Of Steel

The authors have combined corrosion of steel fittings or perforated sheets with granular activated carbon (GAC) that had been pre-treated with Fe(III)-citrate, to produce an innovative and low-maintenance technique for removing arsenic from groundwater. Removal of arsenic was measured using two GAC column configurations: rapid small scale column tests (RSSCT's) and mini-column tests. Independent variables included pH, pre-corrosion procedure, and idling of the column (i.e. intentionally stopping flow for defined times in order to create reducing conditions). Use of corroded steel plus pre-treated GAC removed arsenic to below 10 μg/L for up to 248,000 bed volumes (BV) at pH 6, compared to 7,000 BVs for pre-treated GAC without pre-corroded steel. Performance was not as good at pH 6.5 or 7.5. Idling the system recovered the iron corrosion ability by reducing the passive Fe(III) layer on pre-corroded steel surface, as a result the BVs to arsenic breakthrough was doubled. But idling also caused brief periods of arsenic and iron release after restart, due to reductive dissolution of arsenic-containing ferric oxides. GAC was also effective as filtration media for removal of iron (hydr)oxide particles (and associated arsenic) that was released from the pre-corroded iron.

Granular activated carbon pilot treatment studies for explosives removal from contaminated groundwater

1992 ◽  
Vol 11 (3) ◽  
pp. 178-189 ◽  
Author(s):  
W. J. Wujcik ◽  
W. L. Lowe ◽  
P. J. Marks ◽  
W. E. Sisk
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Contaminated Groundwater
Sign in / Sign up

Export Citation Format

Share Document