Study on Ultrasonic Degradation of Methyl Orange Wastewater by Modified Steel Slag

2014 ◽  
Vol 662 ◽  
pp. 125-128 ◽  
Author(s):  
Xue Fei Lei ◽  
Chen Chen ◽  
Xing Li ◽  
Xiang Xin Xue ◽  
He Yang
Keyword(s):  
Particle Size ◽  
Activated Carbon ◽  
Methyl Orange ◽  
Active Carbon ◽  
Steel Slag ◽  
Raw Material ◽  
Ultrasonic Degradation ◽  
Decoloration Rate ◽  
Doping Ratio ◽  
Degradation Of Methyl Orange

In this paper, steel slag as the main raw material, modified steel slag adsorbent was prepared using steel slag and the active carbon as the starting materials. The influences of doping substance, the particle size, calcining temperature and doping ratio on the decoloration rate of methyl orange wastewater were investigated. The results showed that the decoloration rate of methyl orange can reach 93.62% when the doping substance was the activated carbon, the particle size was 120 mesh, the calcining temperature was 700°C, the doping ratio was 1:1.

Preparation and Characterization of Fe3+ / TiO2 Thin Films Loaded Activated Carbon and Degradation of Methyl Orange

2011 ◽  
Vol 332-334 ◽  
pp. 134-137 ◽  
Author(s):  
Xiao Dong Hu ◽  
Hua Deng ◽  
Lin Du
Keyword(s):  
Particle Size ◽  
Activated Carbon ◽  
Methyl Orange ◽  
Titanium Dioxide Nanoparticles ◽  
Sol Gel ◽  
Titania Nanoparticles ◽  
Fluorescent Light ◽  
High Catalytic Activity ◽  
Iron Doped ◽  
Degradation Of Methyl Orange

Sol - gel method and doped with Fe3+ modification techniques were used, prepared for high catalytic activity of iron-doped titanium dioxide nanoparticles,which loaded on the activated carbon for Degradation of Methyl Orange. Such as crystal structure, particle size, load morphology, chemical state and optical absorption characteristics of the doped titania nanoparticles were characterized by using XRD, SEM, and UV-Vis. Fe-TiO2 catalysts for visible light response and the catalytic degradation of methyl orange in water performance were studied. The results showed that: catalysts prepared were anatase, the particle size decreases with the more amount of iron-doped. The phenomenon of Fe3+-modified TiO2 red shift were obviously. Compared with the undoped catalyst,degradation of Fe3+-TiO2 containing activated carbon improved significantly both in the UV and fluorescent light.

scholarly journals Characterization of Activated Carbon from Industrial Solid Waste Agar with a Different Activator Concentrations

Omni-Akuatika ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 77
Author(s):  
Khuril Zaqyyah ◽  
Sri Subekti ◽  
Mirni Lamid
Keyword(s):  
Activated Carbon ◽  
Carbon Content ◽  
Solid Waste ◽  
Active Carbon ◽  
Liquid Waste ◽  
Ash Content ◽  
Raw Material ◽  
Activator Concentration ◽  
Industrial Solid Waste ◽  
Randomized Design

Production of seaweed processing generates a huge amount of waste, either waste solid or liquid waste. For solid waste contains a lot of organic carbon derived from cellulose or hemicellulose. Therefore, the solid waste that has the potential as a raw material of activated carbon. This study aims to determine the characteristics of the activated carbon produced from solid waste agar and determine the optimal concentration of activator that produced the best characteristics of the activated carbon. The treatment used is a different activator concentration which is designed using completely randomized design (CRD) with five treatments and four replications. The results showed the five treatments are significant differences in the characteristics of the ash and pure active carbon content. This study shows that the manufacture of activated carbon industrial solid waste agar with a different activator concentration influence on the characteristics of the active carbon with ash content parameter and pure active carbon content. The concentration of activator that can provide the highest value of pure activated carbon is in P5 with a concentration of 6 M. Based on this study are advised to do further research on how to lower the ash content of the activated carbon from solid waste agar.

MnO2/CeO2 for catalytic ultrasonic degradation of methyl orange

2014 ◽  
Vol 21 (3) ◽  
pp. 991-996 ◽  
Author(s):  
He Zhao ◽  
Guangming Zhang ◽  
Quanling Zhang
Keyword(s):  
Methyl Orange ◽  
Ultrasonic Degradation ◽  
Degradation Of Methyl Orange

Preparation and Photocatalytic Property of Lanthanum-Doped TiO2 Nanoparticles

2012 ◽  
Vol 549 ◽  
pp. 584-588
Author(s):  
Qing Li ◽  
Rui Zhi Wen
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Methyl Orange ◽  
Particle Size Distribution ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Photocatalytic Efficiency ◽  
Mass Percentage ◽  
Supercritical Fluid Drying ◽  
Degradation Of Methyl Orange

Nano-TiO2 photocatalyst powders were prepared through the sol-gel method and supercritical fluid drying(SCFD). The TG-DTA、XRD、particle size distribution technique、SEM were used to characterize the hyperfine TiO2 particles.The lanthanum-doped TiO2 with different mass percentage of La3+ were compared with pure TiO2 when used as photocatalyst in degradation of methyl orange. The best catalytic activity was observed with 0.02(mol)%La-TiO2. Photocatalytic efficiency of the 0.02(mol)%La- TiO2 is improved by 30.79% comparing to pure TiO2.

scholarly journals Production of Biologically Activated Carbon from Orange Peel and Landfill Leachate Subsequent Treatment Technology

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Zhigang Xie ◽  
Wei Guan ◽  
Fangying Ji ◽  
Zhongrong Song ◽  
Yanling Zhao
Keyword(s):  
Activated Carbon ◽  
Active Carbon ◽  
Three Dimensional ◽  
Orange Peel ◽  
Subsequent Treatment ◽  
Raw Material ◽  
Hydroxyl Group ◽  
Treatment Technology ◽  
Adsorption Method ◽  
Enhanced Adsorption

In order to improve adsorption of macromolecular contaminants and promote the growth of microorganisms, active carbon for biological wastewater treatment or follow-up processing requires abundant mesopore and good biophile ability. In this experiment, biophile mesopore active carbon is produced in one-step activation with orange peel as raw material, and zinc chloride as activator, and the adsorption characteristics of orange peel active carbon is studied by static adsorption method. BET specific surface area and pore volume reached 1477 m2/g and 2.090 m3/g, respectively. The surface functional groups were examined by Fourier transform infrared spectroscopy (FT-IR). The surface of the as-prepared activated carbon contained hydroxyl group, carbonyl group, and methoxy group. The analysis based on X-ray diffraction spectrogram (XRD) and three-dimensional fluorescence spectrum indicated that the as-prepared activated carbon, with smaller microcrystalline diameter and microcrystalline thickness and enhanced reactivity, exhibited enhanced adsorption performance. This research has a deep influence in effectively controlling water pollution, improving area water quality, easing orange peel waste pollution, and promoting coordinated development among society, economy, and environment.

scholarly journals TEKNOLOGI PEMBUATAN ADSORBEN DARI LIMBAH EKSTRAKSI BIOSILIKA SEKAM PADI

2020 ◽  
Vol 7 (3) ◽  
pp. 116-125
Author(s):  
Prima Luna ◽  
Hoerudin ◽  
Sri Usmiati ◽  
Sunarmani
Keyword(s):  
Particle Size ◽  
Activated Carbon ◽  
Mass Production ◽  
Raw Material ◽  
Pore Surface ◽  
Lignocellulosic Waste ◽  
Impregnation Process ◽  
Pore Surface Area ◽  
By Products ◽  
Calcination Treatment

Adsorbent from lignocellulosic waste constitutes an alternative in industry due to the large amount and easy to get. The unique characteristics of activated carbon from lignocellulosic waste as well as more economically with regard to mass production were the reasons for the development of by-products of this rice husk biosilica waste. This research aimed to produce adsorbent from waste of nanobiosilica powder extraction. Calcination or treatment without impregnation) and with impregnation were applied in this study. Calcination was carried out by heating the residual waste at 600 ° C; 700 ° C; and 800 ° C; however the impregnation process was carried out by immersing the residual waste with catalysts ZnCl2, H3PO4, and KOH with ratio 1: 1 and 1: 2 for 24 hours. Subsequently, carbonisation was carried out at 600 ° C; 700 ° C; and 800 ° C for 1 and 3 hours with variations in mesh sizes of 10, 20, 80, and 100 mesh. The results showed that the waste of nanobiosilica extraction still contained high SiO2 (89.86%) so that it could be used as raw material for adsorber to apply in water purification applications. The calcination treatment showed the highest absorption as well as the area of the pore surface. The best particle size was 100 mesh and calcined at 800 ° C in which has a pore surface area meet the requirement of commercial activated charcoal, which is 15.83 m² / g.

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