Preparation and demulsification performance of modified attapulgite nanoparticle demulsifier

Fuel ◽  
2022 ◽  
Vol 313 ◽  
pp. 123038
Author(s):  
You Mu ◽  
Jun Liu ◽  
Juan Liu ◽  
Sili Ren
Keyword(s):  
Modified Attapulgite

scholarly journals Heterogeneous Photo-Fenton Catalytic Degradation of Practical Pharmaceutical Wastewater by Modified Attapulgite Supported Multi-Metal Oxides

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 156
Author(s):  
Manjing Lu ◽  
Jiaqi Wang ◽  
Yuzhong Wang ◽  
Zhengguang He
Keyword(s):  
Photocatalytic Oxidation ◽  
Removal Rate ◽  
Catalytic Degradation ◽  
Gas Chromatography Mass Spectrometry ◽  
Pharmaceutical Wastewater ◽  
High Concentration ◽  
Modified Attapulgite ◽  
Cod Removal Rate ◽  
Pre Treatment ◽  
Almost All

Chemical synthetic pharmaceutical wastewater has characteristics of high concentration, high toxicity and poor biodegradability, so it is difficult to directly biodegrade. We used acid modified attapulgite (ATP) supported Fe-Mn-Cu polymetallic oxide as catalyst for multi-phase Fenton-like ultraviolet photocatalytic oxidation (photo-Fenton) treatment with actual chemical synthetic pharmaceutical wastewater as the treatment object. The results showed that at the initial pH of 2.0, light distance of 20 cm, and catalyst dosage and hydrogen peroxide concentration of 10.0 g/L and 0.5 mol/L respectively, the COD removal rate of wastewater reached 65% and BOD5/COD increased to 0.387 when the reaction lasted for 180 min. The results of gas chromatography-mass spectrometry (GC-MS) indicated that Fenton-like reaction with Fe-Mn-Cu@ATP had good catalytic potential and significant synergistic effect, and could remove almost all heterocycle compounds well. 3D-EEM (3D electron microscope) fluorescence spectra showed that the fluorescence intensity decreased significantly during catalytic degradation, and the UV humus-like and fulvic acid were effectively removed. The degradation efficiency of the nanocomposite only decreased by 5.8% after repeated use for 6 cycles. It seems appropriate to use this process as a pre-treatment for actual pharmaceutical wastewater to facilitate further biological treatment.

Facile synthesis of CeO2 nanotubes templated by modified attapulgite

2010 ◽  
Vol 28 (4) ◽  
pp. 566-570 ◽  
Author(s):  
Zhigang CHEN ◽  
Feng CHEN ◽  
Xiazhang LI ◽  
Xiaowang LU ◽  
Chaoying NI ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Modified Attapulgite

Preparation and Characterization of Polyelectrolyte-Modified Attapulgite as Nanocontainers for Protection of Carbon Steel

2018 ◽  
Vol 165 (13) ◽  
pp. C907-C915 ◽  
Author(s):  
Xuehui Liu ◽  
Dawei Zhang ◽  
Peimin Hou ◽  
Jie Pan ◽  
Xia Zhao ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Modified Attapulgite

Removal of strontium from aqueous solutions by acrylamide-modified attapulgite

2019 ◽  
Vol 319 (3) ◽  
pp. 1207-1217 ◽  
Author(s):  
Rui Zuo ◽  
Li Meng ◽  
Xin Guan ◽  
Jinsheng Wang ◽  
Jie Yang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Modified Attapulgite
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