Metal Recovery from Electroplating Wastewater Using Acidophilic Iron Oxidizing Bacteria:  Pilot-Scale Feasibility Test

2005 ◽  
Vol 44 (6) ◽  
pp. 1854-1859 ◽  
Author(s):  
Donghee Park ◽  
Dae Sung Lee ◽  
Jong Moon Park ◽  
Hee Dong Chun ◽  
Sung Kook Park ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Metal Recovery ◽  
Electroplating Wastewater ◽  
Iron Oxidizing Bacteria ◽  
Feasibility Test

scholarly journals Biological Metal Recovery from Electroplating Wastewater using Slurry Reactor with Iron-Oxidizing Bacteria

2006 ◽  
Vol 29 (3) ◽  
pp. 151-156 ◽  
Author(s):  
Osamu MIKI ◽  
Toshiaki KATO ◽  
Ikuo JITSUHARA ◽  
PARK Dong Hee ◽  
PARK Jong Moon ◽  
...  
Keyword(s):  
Metal Recovery ◽  
Slurry Reactor ◽  
Electroplating Wastewater ◽  
Iron Oxidizing Bacteria

Heavy metal recovery from electroplating wastewater by synthesis of mixed-Fe3O4@SiO2/metal oxide magnetite photocatalysts

2014 ◽  
Vol 16 (5) ◽  
pp. 2696-2705 ◽  
Author(s):  
Shouqiang Huang ◽  
Lin Gu ◽  
Nanwen Zhu ◽  
Kaili Feng ◽  
Haiping Yuan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Oxide ◽  
Metal Recovery ◽  
Electroplating Wastewater

Heavy metal recovery by the fabrication of mixed-Fe3O4@SiO2/metal oxide magnetite photocatalysts from electroplating wastewater.

Metal Recovery from Multi-elementary Electroplating Wastewater Using Passion Fruit Powder

2021 ◽  
Author(s):  
Bianca de Paula Ramos ◽  
Isadora Dias Perez ◽  
Matthias Wessling ◽  
Rosane Freire Boina
Keyword(s):  
Metal Recovery ◽  
Passion Fruit ◽  
Electroplating Wastewater ◽  
Fruit Powder

Low-temperature Conversion of Fe-rich Sludge to KFeS2 Whisker: a New Flocculant Synthesis From Laboratory Scale to Pilot Scale

2021 ◽  
Author(s):  
Dongxu Liang ◽  
Yu Chen ◽  
Suiyi Zhu ◽  
Yidi Gao ◽  
Tong Sun ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cold Rolling ◽  
Freeze Drying ◽  
Pilot Scale ◽  
Laboratory Scale ◽  
Raw Material ◽  
Electroplating Wastewater ◽  
One Dimensional ◽  
Electroplating Effluent ◽  
Pure Grade

Abstract KFeS2 is a one-dimensional material and commonly used raw material for synthesising AgFeS2 and CuFeS2. With the solvothermal method, KFeS2 cluster could be synthesised at 190 °C with chemically pure grade Fe salt as Fe source. Herein, a KFeS2 whisker was formed in mass production at a low temperature, with waste cold-rolling sludge as Fe source, and exhibited good performance in the removal of Zn/Ni from real electroplating effluent. At laboratory scale, results showed that KFeS2 was not generated after heating at 50 °C for 24 h; however, after heating at 80 °C for 10 h, KFeS2 whisker (diameter and length of 0.2 and 0.5–1 mm, respectively) was produced, which grew radially to 1–4 mm after 24 h. This method was applied at pilot scale, where a similar KFeS2 whisker was also produced with waste cold-rolling sludge as Fe source. At pilot scale, a residual brownish supernatant was observed after the reaction and then completely recycled in the next round for KFeS2 synthesis. After recycling five times, the produced KFeS2 whisker did not change. For KFeS2 drying, freeze-drying and vacuum-drying were applicable, whilst air-drying was not profitable. The prepared KFeS2 was spontaneously hydrolysed in electroplating wastewater to generate Fe/S-bearing oxyhydroxide colloid for Zn/Ni removal. By adding 1 g of KFeS2, the residual levels of Zn/Ni were 0.22 and 0.02 mg/L, met the discharge standard of electroplating wastewater. Undried KFeS2 showed similar efficiencies of Zn/Ni removal to dried KFeS2, whose efficiencies were apparently higher than those with Na2S·9H2O, polymeric ferric sulfuric, sodium diethyldithiocarbamatre and lime. With the method, KFeS2 whisker was produced at pilot scale without generating any secondary waste and exhibited good performance in the treatment of electroplating wastewater.

Metal recovery in a pilot-scale rotating cylindrical wiper-blade electrode system

1981 ◽  
Vol 26 (12) ◽  
pp. 1727-1735 ◽  
Author(s):  
T. Takahashi ◽  
M.I. Ismail ◽  
T.Z. Fahidy
Keyword(s):  
Pilot Scale ◽  
Electrode System ◽  
Metal Recovery
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