Pure water production and recovery of Ni2 + from dilute NiSO4 solution via improved electrodeionization (EDI) process were investigated. It was indicated that, with the feed water containing 50 mg L−1 Ni2 + , the dilute resistivity of the EDI could achieve 3 MΩ cm which gave a Ni2 + rejection more than 99.8% while the Ni2 + was concentrated as high as 1,583 mg L−1 in the concentrate stream. The current efficiency was as high as 40% and the concentrate factor could reach 31.7. The experiment results demonstrated that, just in a single process, it was feasible to purifying and concentrating dilute nickel wastewater synchronously by the EDI technology.
Skip Nav Destination
Research Article| February 01 2010
Recovery of nickel ions from simulated electroplating rinse water by electrodeionization process
Water Sci Technol (2010) 61 (3): 729–735.
H. Lu, J. Wang, B. Yan, S. Bu; Recovery of nickel ions from simulated electroplating rinse water by electrodeionization process. Water Sci Technol 1 February 2010; 61 (3): 729–735. doi: https://doi.org/10.2166/wst.2010.894
Download citation file: