Investigation on the simultaneous removal of COD and phosphorus from saponification effluent in rare-earth separating process by Fenton oxidation and chemical precipitation

2020 ◽  
Vol 204 ◽  
pp. 340-347
Author(s):  
Xiaoyan Xiang ◽  
Hao Liu ◽  
Wentang Xia ◽  
Jianguo Yin ◽  
Xiaoli Yuan
Keyword(s):  
Rare Earth ◽  
Chemical Precipitation ◽  
Fenton Oxidation ◽  
Simultaneous Removal

Recovery of Ferro Cyanide from Desulfurization Wastewater by Chemical Precipitation Combined with Fenton Oxidation

2018 ◽  
Vol 21 (1) ◽  
pp. 227-237 ◽  
Author(s):  
Dajun Ren ◽  
Zhiqun Deng ◽  
Xiang Fan ◽  
Chaofan Huang ◽  
Chen Kang ◽  
...  
Keyword(s):  
Chemical Precipitation ◽  
Fenton Oxidation ◽  
Desulfurization Wastewater

scholarly journals Study on treating old landfill leachate by Ultrasound–Fenton oxidation combined with MAP chemical precipitation

2015 ◽  
Vol 27 (4) ◽  
pp. 175-182 ◽  
Author(s):  
Jing Zhang ◽  
Tao Yang ◽  
Hongyu Wang ◽  
Kai Yang ◽  
Cheng Fang ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Chemical Precipitation ◽  
Fenton Oxidation

Synthesis of RePO4 (Re=La, Nd, Pr, or Y) Nanowires by Chemical Precipitation in Nanochannels

2011 ◽  
Vol 181-182 ◽  
pp. 495-500 ◽  
Author(s):  
Cheng Mu ◽  
Jun Hui He
Keyword(s):  
Rare Earth ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Aao Template ◽  
Sem Images ◽  
Transmission Electron ◽  
Rare Earth Phosphate ◽  
Xrd Patterns ◽  
Uniform Diameter

Monodisperse nanowires of rare earth phosphates were synthesized by chemical precipitation method using anodic aluminum oxide (AAO) template. Scanning electron microscope (SEM) images indicated that rare earth phosphate nanowires are parallelly arranged in AAO template, all of which are in uniform diameter of about 50 nm. X-ray diffraction (XRD) patterns and high magnification transmission electron microscopy (HRTEM) images showed that the nanowires were polycrystal structure.

Influence of salinity and rare earth elements on simultaneous removal of Cd, Cr, Cu, Hg, Ni and Pb from contaminated waters by living macroalgae

2020 ◽  
Vol 266 ◽  
pp. 115374
Author(s):  
Marcelo Costa ◽  
Bruno Henriques ◽  
João Pinto ◽  
Elaine Fabre ◽  
Thainara Viana ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Simultaneous Removal ◽  
Contaminated Waters

scholarly journals Simultaneous Removal of Estrogens and Antibiotics from Livestock Manure Using Fenton Oxidation Technique

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 644 ◽  
Author(s):  
Jian Wang ◽  
Xian Zhou ◽  
Michael Gatheru Waigi ◽  
Fredrick Owino Gudda ◽  
Pengfei Cheng ◽  
...  
Keyword(s):  
Human Health ◽  
Oxidation Process ◽  
Animal Manure ◽  
Fenton Oxidation ◽  
Chicken Manure ◽  
Simultaneous Removal ◽  
Optimal Conditions ◽  
Livestock Manure ◽  
Soil System ◽  
Fenton Oxidation Process

The presence of estrogens and antibiotics in animal manure has raised considerable attention regarding their potential risks in both the soil system and human health. This study investigated the removal of estrogens (estriol (E3), bisphenol A (BPA), estradiol (17β-E2), ethinyl estradiol (EE2)), and antibiotic (sulfadimethoxine (SDM)) in livestock manure using the Fenton oxidation process. Based on the removal efficiency of estrogens and antibiotics, the optimal conditions of the Fenton oxidation process were as follows: an H2O2 dosage of 10.5 mmol/g slurry, an Fe2+/H2O2 molar ratio of 0.067 mol/mol, a stirring rate of 100 rpm, the feeding of an identical amount of H2O2 in two steps (at 0 and 15 min), a manure/reactor ratio of 1:25, and a reaction time of 100 min. Under these conditions, the removal efficiencies of E3, BPA, 17β-E2, EE2, and SDM in cow manure were 72.1%, 88.2%, 89.4%, 73.3%, and 99.7%, respectively. In the above-mentioned optimal conditions, the simultaneous removal of estrogens and antibiotic in different manure conditions led to the removal of above 70% of targeted contaminants, except for E3 in swine and chicken manure in all the manure. The findings demonstrate the useful application of the Fenton oxidation process in the concomitant removal of antibiotics and estrogens from animal manure, which reduces the associated risks to human health and environmental safety.

Sign in / Sign up

Export Citation Format

Share Document