Natural zeolites in Argriculture / water treatment and acquaculture
Properties of Zeolite
Zeolite is a naturally occurring mineral found in volcanic ash.
What makes zeolites notable is their crystalline structure
perforated by microscopic pores. These pores allow zeolites to act
as natural filters.
Zeolites are microporous, aluminosilicate minerals and are widely
used in multiple cross industry applications ranging from water
purification to radioactive waste containment. Characterized by its
high surface charge density and high cation exchange capacity,
zeolites’ unique ability to absorb and bind a broad range of
materials makes it a simple and inexpensive solution to many
problems spanning a variety of industries and environmental issues.
Zeolite can be used in raw unprocessed form or processed into
specific sizes ranging from granular to powder form depending on
Liquid radioactive waste has been generated from the use of
radioactive materials in industrial applications, research and
medicine . Natural zeolites (clinoptilolite) have been studied for
the removal of several key radionuclides ((137)Cs, (60)Co, (90)Sr
and (110m)Ag) from liquid radioactive waste. The aim of the present
study is to investigate effectiveness of zeolite treatment on
decontamination factor (DF) in a combined process (chemical
precipitation and adsorption) at the laboratory tests and scale up
to the waste treatment plant. In this study, sorption and
precipitation techniques were adapted to decontamination of liquid
low level waste (LLW). Effective decontamination was achieved when
sorbents are used during the chemical precipitation. Natural
zeolite samples were taken from different zeolite formations in
Turkey. Comparison of the ion-exchange properties of zeolite
minerals from different formations shows that Gordes clinoptilolite
was the most suitable natural sorbent for radionuclides under
dynamic treatment conditions and as an additive for chemical
precipitation process. Clinoptilolite were shown to have a high
selectivity for (137)Cs and (110m)Ag as sorbent. In the absence of
potassium ions, native clinoptilolite removed (60)Co and (90)Sr
very effectively from the liquid waste. In the end of this liquid
waste treatment, decontamination factor was provided as 430 by
using 0.5 mm clinoptilolite at 30 degrees C.
As a natural mineral zeolite’s properties offer a broad range of
applications throughout the agricultural industry. The properties
of zeolite are ideal for use in odour and moisture control in
municipal composting, animal feed supplements, zeoponics for greenhouse growing mediums and high-value outdoor zeolitic
Zeolite can function as a cost effective medium for waste water
treatment. The natural properties of zeolite can be used to remove
ammonia, minimize runoff, and absorb odors.
As environmental regulations require increasingly effective methods
of treating waste – zeolite can be used to protect and manage waste
water in an economical manner.
The natural filtration properties of zeolite can be used within
aquaculture industries such as fish farming, aquariums, and
transport. Zeolite can act as a medium to help to absorb nitrates,
nitrites, and phosphates to maintain a high quality of water.
The natural green properties of zeolite lend themselves to a number
of Green Tech industrial application, Zeolite is used throughout a
number of industrial application such as road salt replacement,
radioactive waste containment, artificial turf, and many more