Hexavalent Chromium Removal in a Foam Flotation Pilot Plant
- 1 July 1984
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 19 (8-9) , 603-611
- https://doi.org/10.1080/01496398408060337
Abstract
Hexavalent chromium was removed from dilute simulated wastewater in a continuous flow pilot scale foam flotation plant. Cr(VI) was reduced to Cr(III) with ferrous sulfate, and the floc resulting on pH adjustment was then removed by precipitate flotation. Sodium lauryl sulfate was used as the carrier surfactant. Effluent Cr concentrations below 0.5 mg/L are easily achieved over the pH range 4.5 to 7.0. The effects of varying the hydraulic loading rate and the ferrous sulfate dose were studied.This publication has 8 references indexed in Scilit:
- Foam separation of chromium(VI) from aqueous solutionJournal of Colloid and Interface Science, 1982
- The Removal of Mixtures of Metals by an Adsorbing Colloid Foam Flotation Pilot PlantSeparation Science and Technology, 1982
- Copper Removal by an Adsorbing Colloid Foam Flotation Pilot PlantSeparation Science and Technology, 1982
- Floc Foam Flotation of Nickel, Chromium, Cobalt, and Manganese. Interaction in Surface AdsorptionSeparation Science and Technology, 1979
- Surfactant-colligend particle size effects on ion flotation: Influences of mixing time, temperature, and surfactant chain lengthColloid and Polymer Science, 1976
- Foam separations: A reviewThe Chemical Engineering Journal, 1975
- Precipitate flotation of chromiumAIChE Journal, 1971
- Ion flotation of dichromate and of complexed cyanide: Surfactants for qualitative analysisJournal of Oil & Fat Industries, 1968