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Selective Separation of Nickel (II) and Cobalt (II) from Waste Water by Using Continuous Cross-Flow Micellar Enhanced Ultrafiltration with Addition of Chelating Agent.
- Source :
-
Separation Science & Technology . Mar2013, Vol. 48 Issue 4, p547-553. 7p. - Publication Year :
- 2013
-
Abstract
- The performance of continuous cross-flow micellar enhanced ultrafiltration (MEUF) is evaluated for the selective separation of nickel (Ni2+) and cobalt (Co2+) from the aqueous stream using anionic surfactant sodiumdodecyl sulfate (SDS) and the mixture of the anionic and nonionic surfactant (SDS+TritonX-100) with the addition of iminodiacetic acid (IDA) as a chelating agent. Operating parameters like operating time (upto 100 min), cross flow rate (100–175 mL/min.), pH of the feed solution (3-6), molar concentration ratio of the chelating agent to metals (C/M ratio, 0.5–2.5), and molar concentration ratio of the surfactant to metals (S/M ratio, 5–9) were studied to investigate the effectiveness of the process on selective separation. For the single surfactant system at all empirically selected parameters, 92% Ni2+in the permeate and 94% Co2+in the retentate was achieved whereas for the mixed surfactant system 93% Ni2+in permeate and 84% Co2+in retentate was achieved. Flux variation for single and mixed surfactant system was studied. Flux observed for the single surfactant system was 36 L/m2.h and for the mixed surfactant system was 31.5 L/m2.h. Flux measurement also indicates insignificant fouling of the membrane. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 01496395
- Volume :
- 48
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Separation Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 85285412
- Full Text :
- https://doi.org/10.1080/01496395.2012.690485