A simple Environmental-Friendly Method for Disposing Toxic Chemical Wastes

2019 ◽  
Author(s):  
Olha Linievych ◽  
Elie Saade
Keyword(s):  
Toxic Chemical ◽  
Environmental Friendly ◽  
Chemical Wastes

scholarly journals Toxic Chemical Wastes

1980 ◽  
Vol 8 (4) ◽  
pp. 15-15 ◽  
Author(s):  
Gregory T. Halbert
Keyword(s):  
Toxic Chemical ◽  
Chemical Wastes

Toxic chemical wastes and the coincidence of carcinogenic mortality in Texas

1998 ◽  
Vol 11 (8) ◽  
pp. 845-865 ◽  
Author(s):  
John Thomas ◽  
Joseph Kodamanchaly ◽  
Patricia Harveson
Keyword(s):  
Toxic Chemical ◽  
Chemical Wastes

Scanning Electron Microscopy and x-ray analysis of microparticles and early hydration effects

1995 ◽  
Vol 53 ◽  
pp. 692-693
Author(s):  
Yun Lu ◽  
David C. Joy
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
High Resolution ◽  
Morphological Development ◽  
Early Hydration ◽  
X Ray ◽  
Blended Cements ◽  
Powder Particles ◽  
Chemical Wastes ◽  
Scanning Electron

High resolution scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDXA) were performed to investigate microparticles in blended cements and their hydration products containing sodium-rich chemical wastes. The physical appearance of powder particles and the morphological development at different hydration stages were characterized by using high resolution SEM Hitachi S-900 and by SEM S-800 with a EDX spectrometer. Microparticles were dispersed on the sample holder and glued by 1% palomino solution. Hydrated bulk samples were dehydrated by acetone and mounted on the holder by silver paste. Both fracture surfaces and flat cutting sections of hydrating samples were prepared and examined. Some specimens were coated with an 3 nm thick Au-Pd or Cr layer to provide good conducting surfaces. For high resolution SEM S-900 observations the accelerating voltage of electrons was 1-2 KeV to protect the electron charging. Microchemical analyses were carried out by S800/EDS equipped with a LINK detector of take-off angle =40°.

Production of Asbestos-free Brake Pad Using Groundnut Shell as Filler Material

2018 ◽  
Vol 4 (12) ◽  
Author(s):  
W. C. Solomon ◽  
M. T. Lilly ◽  
J. I. Sodiki
Keyword(s):  
Phenolic Resin ◽  
Cost Effective ◽  
Filler Material ◽  
Particle Sizes ◽  
Brake Pad ◽  
Brake Pads ◽  
Environmental Friendly ◽  
Sieve Size ◽  
Groundnut Shell ◽  
The Cost

The development and evaluation of brake pads using groundnut shell (GS) particles as substitute material for asbestos were carried out in this study. This was with a view to harnessing the properties of GS, which is largely deposited as waste, and in replacing asbestos which is carcinogenic in nature despite its good tribological and mechanical properties. Two sets of composite material were developed using varying particle sizes of GS as filler material, with phenolic resin as binder with percentage compositions of 45% and 50% respectively. Results obtained indicate that the compressive strength and density increase as the sieve size of the filler material decreases, while water and oil absorption rates increase with an increase in sieve size of GS particle. This study also indicates that the cost of producing brake pad can be reduced by 19.14 percent if GS is use as filler material in producing brake pad. The results when compared with those of asbestos and industrial waste showed that GS particle can be used as an effective replacement for asbestos in producing automobile brake pad. Unlike asbestos, GS-based brake pads are environmental friendly, biodegradable and cost effective.

DEVELOPMENT OF A SIMPLE, INEXPENSIVE AND ENVIRONMENTAL-FRIENDLY ARSENIC (III) DETECTION KIT

2015 ◽  
Vol 14 (8) ◽  
pp. 1963-1968
Author(s):  
Keat Khim Ong ◽  
Madihah Zainuddin ◽  
Chin Chuang Teoh ◽  
Nor Azah Yusof ◽  
Wan Md Zin Wan Yunus ◽  
...  
Keyword(s):  
Environmental Friendly
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