Efficient removal of lead from aqueous solution by urea-functionalized magnetic biochar: Preparation, characterization and mechanism study

2018 ◽  
Vol 91 ◽  
pp. 457-467 ◽  
Author(s):  
Xiaohui Zhou ◽  
Yaochi Liu ◽  
Jianjun Zhou ◽  
Jing Guo ◽  
Jialin Ren ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mechanism Study ◽  
Efficient Removal ◽  
Magnetic Biochar

Efficient removal of copper and lead from aqueous solution by magnetic biochar: magnetization, adsorption, separation and desorption

2019 ◽  
Vol 166 ◽  
pp. 24-34
Author(s):  
Zhifang Zhou ◽  
Baiping Zhao ◽  
Youxian Zhang ◽  
Hanxue Sun ◽  
Jixiang Chen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Efficient Removal ◽  
Magnetic Biochar

Studying dispersed and rheological properties of hydrocarbon-containing acid emulsions and their efficiency in removing asphalt-resin-paraffin deposits

2020 ◽  
pp. 128-139
Author(s):  
M. Yu. Shumakher ◽  
V. V. Konovalov ◽  
A. P. Melnikov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Rheological Properties ◽  
Reaction Rate ◽  
Experimental Studies ◽  
Efficient Removal ◽  
Reservoir Properties ◽  
Hydrocarbon Solvents ◽  
Formation Zone ◽  
Effect Of The Composition

Currently, the treatment of the bottomhole formation zone with acidic compositions is one of the most common methods to intensify the oil inflow. The use of various modified acid compositions increases the efficiency of acid treatments on the bottomhole formation zone. Acid compositions, including those containing hydrocarbon solvents, which contribute to more efficient removal of organic colmatants, affect the reaction rate of the reagent with the rock and processing equipment, change the reservoir properties, etc.The article presents the results of experimental studies, which are aimed at establishing the effect of the composition of hydrocarbon-containing acidic emulsions consisting of an aqueous solution of hydrochloric acid, toluene and Neonol AF 9-10 on their dispersed and rheological properties, as well as their efficiency in removing paraffin deposits.

High-efficient removal of U(VI) from aqueous solution by self-assembly pomelo peel/palygorskite composite

2021 ◽  
Author(s):  
Xiaofeng Huang ◽  
Qiulin Deng ◽  
Xingzhang Wang ◽  
Hongquan Deng ◽  
Tinghong Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Self Assembly ◽  
Efficient Removal ◽  
Pomelo Peel ◽  
High Efficient

scholarly journals Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2682
Author(s):  
Gyuhyeon Kim ◽  
Young-Mo Kim ◽  
Su-Min Kim ◽  
Hyun-Uk Cho ◽  
Jong-Moon Park
Keyword(s):  
Aqueous Solution ◽  
Magnetic Properties ◽  
Low Cost ◽  
Steel Slag ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Magnetic Biochar ◽  
N Removal ◽  
Magnetic Steel ◽  
Slag Waste

In this study, magnetic steel slag biochar (MSSB) was synthesized from low-cost steel slag waste to investigate the effectiveness of steel slag biochar composite for NH4-N removal and magnetic properties in aqueous solution. The maximum adsorption capacity of NH4-N by MSSB was 4.366 mg/g according to the Langmuir model. The magnetic properties of MSSB indicated paramagnetic behavior and a saturation magnetic moment of 2.30 emu/g at 2 Tesla. The NH4-N adsorption process was well characterized by the pseudo-second order kinetic model and Temkin isotherm model. This study demonstrated the potential of magnetic biochar synthesized from steel slag waste for NH4-N removal in aqueous solution.

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