Improved dewaterability of drilling waste sludge by ultrasonic and potassium permanganate co-treatment

Author(s):  
Liyan Liu ◽  
Bin Ran ◽  
Chao Hua
Author(s):  
Jindan Song

Potassium permanganate has been used as a fixative for the botanical specimen and membrane system in thin section by Glauert (1975). A new potassium permanganate fixative ( Trisodium citrate 60mM, Potassium chloride 25mM, Magnesium chloride 35mM, and Potassium permanganate 125mM ) for localizing membranous system in whole_mount cultured cells with standard trasmission electron microscopy and phase_contrast microscopy has been developed). Here, we report that using this new potassium permanganate fixative for membranous system in sections.Cultured cells, CV_1 (African green monkey kidney epithelial cells), Balb/c 3T3 ( Mouse embryo fibroblast ) and MCF_7 (Human adenocarcinoma cell line) were used for this study. All cells were grown on 35mm plastic dishes in DME medium containing 5% calf serum at 37 c with 100% humidity and 5% CO2. Using the potassium permanganate fixative to fix the cells for about 7 minutes. After fixation, the cells were dehydrated in a graded series of ethanol.


Author(s):  
M. S. Bischel ◽  
J. M. Schultz

Despite its rapidly growing use in commercial applications, the morphology of LLDPE and its blends has not been thoroughly studied by microscopy techniques. As part of a study to examine the morphology of a LLDPE narrow fraction and its blends with HDPE via SEM, TEM and AFM, an appropriate etchant is required. However, no satisfactory recipes could be found in the literature. Mirabella used n-heptane, a solvent for LLDPE, as an etchant to reveal certain morphological features in the SEM, including faint banding in spherulites. A 1992 paper by Bassett included a TEM micrograph of an axialite of LLDPE, etched in a potassium permanganate solution, but no details were given.Attempts to use n-heptane, at 60°C, as an etchant were unsuccessful: depending upon thickness, samples swelled and increased in diameter by 5-10% or more within 15 minutes. Attempts to use the standard 3.5% potassium permanganate solution for HDPE were also unsuccessful: the LLDPE was severely overetched. Weaker solutions were also too severe.


2014 ◽  
Vol 3 (1) ◽  
pp. 150-158 ◽  
Author(s):  
Mohey A. Hassanain ◽  
Nawal A. Hassanain ◽  
Esam A. Hobballa ◽  
Fatma H. Abd- El Zaher ◽  
Mohamed Saber M. Saber

A surface sample representing a high contaminated loamy sand soil irrigated with sewage effluent since 30 years and was cultivated with artichoke was collected from Abu-Rawash sewage farm. The existence of HVC, enteric infectious bacteria and parasites in sewaged soil found to be negative for the forward and positive for the latter's. Out of the 30 samples separated from the sewaged soil sample, only 3 samples contained parasitic fauna of developed and undeveloped Ascaris (10%) and five samples contained Entamoeba coli. Results showed that the number of Ascaris eggs/gm soil was 0.017 and the number of E. coli/gm was 0.26. Decontamination of soil parasites was effective using either calcium hypochlorite or potassium permanganate. Salmonella, Vibrio and Campelobacter were detected in the high contaminated sewaged soil and survived for 120 days in the sewaged soil under all control and bioremediated treatments irrigated with either sewage effluent or water.


Author(s):  
Abbas Shebeeb Al-kadumi ◽  
Sahar Rihan Fadhel ◽  
Mohammed Abdullah Ahmed ◽  
Luma Amer Musa

We proposed two simple, rapid, and convenient spectrophotometric methods are described for the determination of Amoxicillin in bulk and its pharmaceutical preparations. They are based on the measurement of the flame atomic emission of potassium ion (in first method) and colorimetric determination of the green colored solution for manganite ion at 610 nm formed after reaction of Amoxicillin with potassium permanganate as oxidant agent (in the second method) in basic medium. The working conditions of the methods were investigated and optimized. Beer's law plot showed a good correlation in the concentration range of 5-45 μg/ml. The detection limits and relative standared deviations were (2.573, 2.814 μg/ml) (2.137, 2.498) for the flame emission photometric method and (1.844, 2.016 μg/ml) (1.645,1.932) for colorimetric methods for capsules and suspensions respectively. The methods were successfully applied to the determination of Amoxicillin in capsules and suspensions, and the obtained results were in good agreement with the label claim. No interference was observed from the commonly encountered additives and expectancies.


2014 ◽  
Vol 13 (1) ◽  
pp. 173-180
Author(s):  
XiangGuo Li ◽  
Yang Lv ◽  
BaoGuo Ma ◽  
ShouWei Jian ◽  
HongBo Tan ◽  
...  
Keyword(s):  
Oil Well ◽  

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