Bioprocess technology for coal washery effluent treatment by Lemna minor

2018 ◽  
Vol 28 (4) ◽  
pp. 73-79
Author(s):  
V. A. Selvi ◽  
A. Kumar
Keyword(s):  
Lemna Minor ◽  
Effluent Treatment ◽  
Bioprocess Technology ◽  
Coal Washery

Low temperature x-ray microanalysis of frozen-hydrated tobacco leaves

1984 ◽  
Vol 42 ◽  
pp. 284-285
Author(s):  
S. Edith Taylor ◽  
Patrick Echlin ◽  
May McKoon ◽  
Thomas L. Hayes
Keyword(s):  
Low Temperature ◽  
Lemna Minor ◽  
Root Tips ◽  
Tobacco Leaves ◽  
X Ray ◽  
Whole Cells ◽  
Carbon Coated ◽  
The Right ◽  
Beam Currents ◽  
The University

Low temperature x-ray microanalysis (LTXM) of solid biological materials has been documented for Lemna minor L. root tips. This discussion will be limited to a demonstration of LTXM for measuring relative elemental distributions of P,S,Cl and K species within whole cells of tobacco leaves.Mature Wisconsin-38 tobacco was grown in the greenhouse at the University of California, Berkeley and picked daily from the mid-stalk position (leaf #9). The tissue was excised from the right of the mid rib and rapidly frozen in liquid nitrogen slush. It was then placed into an Amray biochamber and maintained at 103K. Fracture faces of the tissue were prepared and carbon-coated in the biochamber. The prepared sample was transferred from the biochamber to the Amray 1000A SEM equipped with a cold stage to maintain low temperatures at 103K. Analyses were performed using a tungsten source with accelerating voltages of 17.5 to 20 KV and beam currents from 1-2nA.

Elemental Analysis of Phloem Tissue in Lemna Minor Root Tips

1980 ◽  
Vol 38 ◽  
pp. 798-799
Author(s):  
Patrick Echlin ◽  
Thomas Hayes ◽  
Clifford Lai ◽  
Greg Hook
Keyword(s):  
Vascular Tissue ◽  
Lemna Minor ◽  
Atomic Weight ◽  
Companion Cell ◽  
Root Tips ◽  
Phloem Tissue ◽  
Cell Stage ◽  
Phloem Parenchyma ◽  
Parenchyma Cells ◽  
Xylem Element

Studies (1—4) have shown that it is possible to distinguish different stages of phloem tissue differentiation in the developing roots of Lemna minor by examination in the transmission, scanning, and optical microscopes. A disorganized meristem, immediately behind the root-cap, gives rise to the vascular tissue, which consists of single central xylem element surrounded by a ring of phloem parenchyma cells. This ring of cells is first seen at the 4-5 cell stage, but increases to as many as 11 cells by repeated radial anticlinal divisions. At some point, usually at or shortly after the 8 cell stage, two phloem parenchyma cells located opposite each other on the ring of cells, undergo an unsynchronized, periclinal division to give rise to the sieve element and companion cell. Because of the limited number of cells involved, this developmental sequence offers a relatively simple system in which some of the factors underlying cell division and differentiation may be investigated, including the distribution of diffusible low atomic weight elements within individual cells of the phloem tissue.

Effluent Treatment for Sago Industry Using Zeolite and Activated Carbon

2014 ◽  
Vol 2014 (2) ◽  
pp. 18-26 ◽  
Author(s):  
S. Anbukumar ◽  
◽  
Ashok Kumar ◽  
Keyword(s):  
Activated Carbon ◽  
Effluent Treatment

Performance Evaluation of Photo-Fenton and Fenton Processses for Dairy Effluent Treatment

2013 ◽  
Vol 5 (4) ◽  
pp. 280 ◽  
Author(s):  
Carla C. A. Loures ◽  
Hélcio J. Izário. Filho ◽  
Gisella R. Lamas Samanamud ◽  
André L. Souza ◽  
Rodrigo F. S. Salazar ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Effluent Treatment ◽  
Dairy Effluent

Lenteja de agua (Lemna minor) para el tratamiento de las aguas residuales que provienen del lavado de la fibra de fique (Furcraea bedinghausii)

2016 ◽  
Vol 18 (2) ◽  
pp. 25
Author(s):  
Arnol Arias Hoyos ◽  
Alejandra Ramirez ◽  
Viviana Andrea Fernandez ◽  
Nazly E. Sanchez
Keyword(s):  
Lemna Minor
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