PMID- 22626629 OWN - NLM STAT- MEDLINE DCOM- 20121025 LR - 20161125 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 225-226 DP - 2012 Jul 30 TI - Removal of cesium from simulated liquid waste with countercurrent two-stage adsorption followed by microfiltration. PG - 107-13 LID - 10.1016/j.jhazmat.2012.04.069 [doi] AB - Copper ferrocyanide (CuFC) was used as an adsorbent to remove cesium. Jar test results showed that the adsorption capacity of CuFC was better than that of potassium zinc hexacyanoferrate. Lab-scale tests were performed by an adsorption-microfiltration process, and the mean decontamination factor (DF) was 463 when the initial cesium concentration was 101.3mug/L, the dosage of CuFC was 40mg/L and the adsorption time was 20min. The cesium concentration in the effluent continuously decreased with the operation time, which indicated that the used adsorbent retained its adsorption capacity. To use this capacity, experiments on a countercurrent two-stage adsorption (CTA)-microfiltration (MF) process were carried out with CuFC adsorption combined with membrane separation. A calculation method for determining the cesium concentration in the effluent was given, and batch tests in a pressure cup were performed to verify the calculated method. The results showed that the experimental values fitted well with the calculated values in the CTA-MF process. The mean DF was 1123 when the dilution factor was 0.4, the initial cesium concentration was 98.75mug/L and the dosage of CuFC and adsorption time were the same as those used in the lab-scale test. The DF obtained by CTA-MF process was more than three times higher than the single-stage adsorption in the jar test. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Han, Fei AU - Han F AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China. FAU - Zhang, Guang-Hui AU - Zhang GH FAU - Gu, Ping AU - Gu P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120507 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Ferrocyanides) RN - 0 (Water Pollutants, Chemical) RN - 1KSV9V4Y4I (Cesium) RN - 871D97G82Z (cupric ferrocyanide) SB - IM MH - Adsorption MH - Cesium/*chemistry MH - Ferrocyanides/*chemistry MH - Filtration MH - Kinetics MH - Waste Disposal, Fluid/methods MH - Water Pollutants, Chemical/*chemistry MH - Water Purification/methods EDAT- 2012/05/26 06:00 MHDA- 2012/10/26 06:00 CRDT- 2012/05/26 06:00 PHST- 2012/01/31 00:00 [received] PHST- 2012/04/05 00:00 [revised] PHST- 2012/04/29 00:00 [accepted] PHST- 2012/05/26 06:00 [entrez] PHST- 2012/05/26 06:00 [pubmed] PHST- 2012/10/26 06:00 [medline] AID - S0304-3894(12)00472-4 [pii] AID - 10.1016/j.jhazmat.2012.04.069 [doi] PST - ppublish SO - J Hazard Mater. 2012 Jul 30;225-226:107-13. doi: 10.1016/j.jhazmat.2012.04.069. Epub 2012 May 7.