| Arsenicide® Arsenic removal filter media |
- This
media use oxidizing reaction to oxidize the soluble form of Arsenic
which will convert them into Insoluble form of Arsenic ;easily
to be removed or filtered out from the water .They need minimum
contact time =10-15 seconds for oxidation reaction with soluble
arsenic.The oxidation capacity of this media = 2,000 milligram
of soluble Arsenic / 1 liters of media.Therefore after this filter
filled with this media ,should treat the water by another sediment
filter tank to filter their insoluble Arsenic.
- For
optimum reaction ; should place this media with minimum media
bed depth =70 c.m and design feed water flow rate = 6,000 liters/hour
per this media quantity = 1,000 liters.
- Our
Chemical Engineer who graduated from Western Germany , spent over
4 years to develop this media in our country to replace our imported
media from USA , it save our costing a lot but also have the same
performance same as USA imported media .After field testing in
actual installation with underground water over 2 years , we are
ready to export this media for other country.
- Allowance
for maximum Arsenic content in the feed water = 8 ppm to reach
optimum result.
- Upon
decreasing performance of this media ; please recover /regenerate
them with Sodium Hydroxide solution with concentraion = 1 kg /
50 liters of water and follow with rigorous backwashing with plain
water for 15-20 minutes Suggested regeneration cycle = 2-3 months
/ cycle or upon the water condition Generally if the water condition
is not too bad ; it's lifetime = 3 years before changing with
new media.
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| What
is arsenic? |
Arsenic
is a naturally occurring gray metal-like material found in the environment
combined with other elements. Most of these combined compounds are white
or colorless powders that do not evaporate. They have no smell, and
most have no special taste, so you cannot tell if arsenic is present
in your food, water, or air. Arsenic is sometimes used in industry as
a wood preservative and in insect and weed killers
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| How
can arsenic affect my health? |
Because
arsenic is a natural part of the environment, low levels of arsenic
are present in soil, water, food, and air. Higher levels of some arsenic
may cause irritation of the stomach and intestines, pain, nausea, vomiting
and diarrhea. Arsenic is harmful to the production of blood cells and
may cause abnormal heart rhythm. It may damage blood vessels and impair
nerve function. It may also cause skin changes in the form of corns
or warts. These skin changes are not considered to be a health concern
in their own right, but a small number of the corns may ultimately develop
into skin cancer. In high levels, arsenic may cause lung cancer or even
death. The Department of Health and Human Services has determined that
arsenic is a known carcinogen. All of these symptoms may also be caused
by other illnesses, so it is important to determine if you have been
exposed.
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| According
to The United Nation Classification System, The Arsenic is poisonous substance
(class 6.1) |
Arsenic
and Arsenic componds over 25 types can dissolve in the water and dissociate
into organic arsenic compond or inorganic arsenic compond. Main source
of the componds are natural source underground, pesticides, herbicides,
insecticides, fungus-resistant paint, waste products from various industries
and etc.
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| Specification: |
- Is
Heterogeneous Catalyst Media, capable for activation of soluble
Arsenic compond into insoluble Arsenic compond; easily removed
from the water.
- Granular
size: 1-3 mm.
- Density:
1.20 Kg/Liter
- Hardness:
95
- Oxidation
condition: Maximum 8 ppm of Arsenic content
- Contact
time: 10-15 seconds
- Oxidation
capacity: 2g/L
- Regeneration:
Solution of Caustic Soda (1Kg/50liters of water)
- Filtration's
design: Layer of clean sand or Anthracite 20cm on the top of the
bed of arsenicide®, arsenicide® bed depth at least 70cm.
- Flow
rate: 6-8 m2/hr per Arsenicide® 1m3
- Backwash:
Water, @ flowrate 150L/min
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| The
Results of Analysis |
Sample |
Parameter
|
Result
of analysis |
Unit |
Non-filtered
water |
Arsenic |
3.60
± 0.13 |
mg/L |
Filtered
water |
Arsenic |
Not
detected |
- |
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| Source:
Science and Technology Service Center, Chiang Mai University, Thailand,
Date: November 17, 2004 |
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Ex-work price: 3.50 Euro/Liter, 25 Liters / Sack (Prices subjected to change without notice)
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