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Sorption of nitrate (NH4NO3) and phosphate (KH2PO4) on pure and surface modified forms of Mordenite and zeolite-A in liquid-solid system: A comparative study
6th International Conference on Recycling and Waste Management
December 03-04, 2018 | Dubai, UAE
Masood ayoub kaloo, Bilal Ahmad Bhat, and Sheikh Abdul Majid
J&K Govt. Degree College, India
Posters & Accepted Abstracts : J Biotech and Phyto
Abstract:
NO3- and H2PO4- are negatively charged ions and the
soil particles have a net negative charge as well, these
are not strongly retained in the soil. In addition NO3- and
H2PO4- are very mobile and soluble in water. Consequently
these compounds are susceptible to be leached through the
soil profile to groundwater and thus are made unavailable to
plants for longer time. When high NO3- and H2PO4- content
waters reach lake or any other water body, growth of aquatic
plants is enhanced causing depleted oxygen levels and as
those plants die, they are decomposed by microorganisms.
The potential leaching of these nutrients can be decreased
by creating sorptive or immobilizing zones in the soil by the
incorporation of the appropriate sorbent in the affected
area of soil. So slow release fertilizers (SRFs) are excellent
alternatives to soluble fertilizers because nutrients are released
at a slower rate throughout the season and thus plants are able
to take up most of the nutrients without waste by leaching.
Zeolites are aluminosilicate minerals, have extremely high
adsorption capacity and good catalytic properties with excellent
chemical and thermal stability. They are thermally stable
and have good resistance to most chemicals. Results of the
exploratory investigation of a group of scientists indicate that
acid-activated clinoptilolitic tuff could be considered a suitable
material for removing atrazine and similar chemical compounds
from water. Similarly systematic adsorption tests were carried
out by S. Kolakovic et. al to determine the efficiency of organozeolite
for removal of atrazine, lindane and diazinone from water.
Clinoptilolite based separation was designed and developed for
more efficient and cost effective water purification process.
In this presentation, we will discuss sorption studies of nitrate
(NH4NO3) and phosphate (KH2PO4) by two zeolites viz, mordenite
[Na+8 (H2O)24| [Al8Si40 O96]-MOR and zeolite-A, [Na+12
(H2O)27|8 [Al12Si12 O48]8 –LTA synthesized hydrothermally
Biography:
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