Isolation and Microscopic Characterization of Nuclear Fuel Particles from Two Contaminated Soils of Chernobyl

2000 ◽  
Vol 663 ◽  
Author(s):  
Ahamdach Noureddine ◽  
Stammose Denise
Keyword(s):  
Nuclear Fuel ◽  
Contaminated Soils ◽  
Source Term ◽  
The Other ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Fuel Particles ◽  
Scanning Electron ◽  
Nuclear Fuel Particles

ABSTRACTNuclear fuel particles were separated, from two different Chernobyl contaminated soils, by sedimentation in bromoform. Their physico-chemical characteristics were studied by scanning electron microscopy. The two soils show the same types of fuel particles: one part of these particles contains U and O and the other part contains U, Zr and O. The structure and the surface morphology of the studied particles are variable and are characteristic of the conditions of their formation. The source term is thus heterogeneous. This heterogeneity has direct consequences on the dissolution of the fuel particles and should be taken into account in mathematical models.

Properties of Ceramic-Coated Nuclear-Fuel Particles

1964 ◽  
Vol 20 (2) ◽  
pp. 153-170 ◽  
Author(s):  
J. M. Blocker ◽  
M. F. Browning ◽  
W. J. Wilson ◽  
V. M. Secrest ◽  
A. C. Secrest ◽  
...  
Keyword(s):  
Nuclear Fuel ◽  
Fuel Particles ◽  
Nuclear Fuel Particles

Coated Nuclear Fuel Particles: The Coating Process and Its Model

1977 ◽  
Vol 35 (2) ◽  
pp. 263-278 ◽  
Author(s):  
R. L. R. Lefevre ◽  
M. S. T. Price
Keyword(s):  
Nuclear Fuel ◽  
Coating Process ◽  
Fuel Particles ◽  
Nuclear Fuel Particles

139. Measurement and control of the microstructure of pyrolytic carbon on nuclear fuel particles

Carbon ◽  
1976 ◽  
Vol 14 (5) ◽  
pp. 307
Author(s):  
J. Guilleray ◽  
R. Zeyen ◽  
J-P. Audebeau ◽  
M.S.T. Price
Keyword(s):  
Nuclear Fuel ◽  
Pyrolytic Carbon ◽  
Fuel Particles ◽  
And Control ◽  
Measurement And Control ◽  
Nuclear Fuel Particles

Study of the retention of Ba in UO2 nuclear fuel particles by ZrO2 as getter

1976 ◽  
Vol 60 (2) ◽  
pp. 216-222 ◽  
Author(s):  
R. Odoj ◽  
K. Hilpert ◽  
H.W. Nürnberg ◽  
R. Förthmann ◽  
A. Naoumidis
Keyword(s):  
Nuclear Fuel ◽  
Fuel Particles ◽  
Nuclear Fuel Particles

scholarly journals Physico-Chemical Characteristics of Shungite Rock of Kazakhstan

2013 ◽  
Vol 15 (3) ◽  
pp. 241 ◽  
Author(s):  
S.A. Efremov ◽  
S.V. Nechipurenko ◽  
M.K. Kazankapova ◽  
B. Washington ◽  
Kh.S. Tassibekov ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Physicochemical Characteristics ◽  
Chemical Characteristics ◽  
X Ray ◽  
Elementary Analysis ◽  
Physico Chemical ◽  
Developed Surface ◽  
Scanning Electron ◽  
Shungite Carbon

Physico-chemical characteristics of shugite rocks of Kazakhstan (Bakyrchik deposit) were studied using the methods of elementary analysis, IR-spectroscopy, scanning electron microscopy, Raman spectroscopy and X-ray phase analysis. The content of carbon in shungite rock was determined to be from 3% to 19%. The flotation technology for shungite rocks of Kazakhstan was developed, the content of carbon in the concentrate reaching 40.0%. When studying the elemental composition, the mineral part of shungite rocks was stated to be presented, mainly, by silicon, aluminium, calcium, magnesium, potassium, sodium, iron and titanium oxides. IR-spectroscopic investigations showed that in the concentrate, apart from polycyclic hydrocarbons containing methylene groups, there appeared carboxyl groups. The results of scanning electron microscopy (SEM) showed that flotation and thermal activation of shungite rocks on carbon allow obtaining a more developed surface structure and porosity. The structure of shungite carbon was shown by the method of Raman scattering to be close to that of glassy carbon. The results of X-ray diffraction analysis (XRD) of natural shungite rocks showed that the samples under study contained a carbonaceous substance and a number of mineral components: quartz, illite, bassanite, burgerite, muscovite. It is shown that shungite carbon of “Bakyrchik” deposit is identical to shungite of Zazhogino deposit in Russia. The stated physicochemical characteristics allow to determine the directions of the use of carbon concentrate for solution of ecological and technological problems.

scholarly journals Water consumption, wastewater generation and characterization of a slaughterhouse for resource conservation and recovery

2021 ◽  
Author(s):  
Akshay D. Shende ◽  
Swati Dhenkula ◽  
Ashish Waghambare ◽  
Neti Nageswara Rao ◽  
Girish R. Pophali
Keyword(s):  
Water Consumption ◽  
Resource Conservation ◽  
Personal Hygiene ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Wastewater Generation

Abstract This study is an overview of a beef-based slaughterhouse's processes and operations, from animal reception to product dispatch, including water consumption over 105 days. On average, 1,114 L/buffalo is required for slaughter and processing. Corresponding wastewater generation is between 916 and 1,089 L. Water consumption per buffalo decreases with increasing numbers of buffalos slaughtered per day, and in some operations – e.g., plant washing, personal hygiene, canteen, and knife and instrument washing – is independent of the number of buffalo slaughtered. In contrast, refrigeration depends partly on the numbers slaughtered. Wastewater characterization from each slaughterhouse process and operation was carried out over three months, and wastewater physico-chemical characteristics from individual operations are presented.

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