TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Engstler, Roxanne
A1  - Reipert, Jan
A1  - Karimi, Somayeh
A1  - Vukušić, Josipa Lisičar
A1  - Heinzler, Felix
A1  - Davies, Philip
A1  - Ulbricht, Mathias
A1  - Barbe, Stéphan
ED  - Dolar, Davor
T1  - A Batch Reverse Osmosis Process to Recover and Recycle Trivalent Chromium from Electroplating Wastewater
JF  - Membranes
N2  - Electroplating generates high volumes of rinse water that is contaminated with heavy metals. This study presents an approach for direct metal recovery and recycling from simulated rinse water, made up of an electroplating electrolyte used in industry, using reverse osmosis (RO). To simulate the real industrial application, the process was examined at various permeate fluxes, ranging from 3.75 to 30 L·m−2·h−1 and hydraulic pressures up to 80 bar. Although permeance decreased significantly with increasing water recovery, rejections of up to 93.8% for boric acid, >99.9% for chromium and 99.6% for sulfate were observed. The final RO retentate contained 8.40 g/L chromium and was directly used in Hull cell electroplating tests. It was possible to deposit cold-hued chromium layers under a wide range of relevant current densities, demonstrating the reusability of the concentrate of the rinsing water obtained by RO.
KW  - Umgekehrte Osmose
KW  - Electrolyte Recovery
KW  - Reverse Osmosis
KW  - Closed-Loop
KW  - Wastewater Treatment
KW  - Electroplating
KW  - Elektrophoretisches Beschichten
Y1  - 2022
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:832-epub4-20364
SN  - 2077-0375
SS  - 2077-0375
U6  - https://doi.org/10.3390/membranes12090853
DO  - https://doi.org/10.3390/membranes12090853
VL  - 12
IS  - 9
SP  - 18
S1  - 18
PB  - MDPI
ER  -