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Cyanide in Well Water
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Cyanide is well-known as a poison - short-term health problems can include neurological effects such as rapid breathing and tremors. Long-term exposure to cyanide can cause nerve damage, thyroid problems, and weight loss. Cyanide can be removed from drinking water by reverse osmosis and ion exchange. Reverse osmosis works by forcing the water through a membrane that allows water molecules to pass through but blocks larger ions, such as ones associated with iron, lead and cyanide. Ion exchange filters work by removing cyanide ions by adsorbing them onto special resins
FilterWater.com
Cyanide is notorious
in popular fiction as a deadly poison used for both homicide and suicide.
This is based on a
history of actual malicious use of its highly toxic properties, including the
use of cyanide in chemical weapons in World War I.
However, humans can
tolerate low-levels of exposure to cyanide, and not all compounds containing
cyanide are toxic.
“Cyanide
compounds tend to migrate easily through soils under certain chemical
conditions, and cyanide may leach into groundwater.”
Cyanide is a toxic
ion that contains both carbon and nitrogen.
It occurs naturally
in many different plants and is contained in many types of food, including
several vegetables commonly eaten in the U.S.
It is often associated
with industrial activity such as metal finishing, steel mills, and ore
refining.
Billions of tons of
cyanide are produced each year through industrial processes. Cyanide has also
been used in pesticides.
Cyanide compounds
tend to migrate easily through soils under certain chemical conditions, and
cyanide may leach into groundwater.
Cyanide can
contaminate groundwater from a number of different types of sources, such as
industrial use of cyanides, cyanide wastes leaching from landfills,
cyanide-containing pesticides, and even cyanide-containing road salts.
Cyanide and Human
Health
Cyanide is well-known
as a poison, and a lethal does in humans is between 50 and 200 milligrams (mg).
In smaller doses,
short-term health problems can include neurological effects such as rapid
breathing and tremors.
Long-term exposure to
cyanide can cause nerve damage, thyroid problems, and weight loss.
For drinking water,
the U.S. Environmental Protection Agency (USEPA) has set a maximum contaminant
level (MCL) and maximum contaminant level goal (MCLG) for cyanide of 0.2
milligrams per liter (mg/L or parts per million) in municipal water supplies.
The MCLG is the level
of cyanide in drinking water at which no adverse health risks are likely to
occur, with an adequate margin of safety.
Detection of cyanide
in water requires chemical testing.
Interesting fact:
Much of the cyanide that is produced is used for mining of gold and silver.
How to Remove Cyanide
from Drinking Water
Cyanide can be
removed from drinking water by reverse osmosis and ion exchange.
Reverse osmosis works
by forcing the water through a membrane that allows water molecules to pass
through but blocks larger ions, such as ones associated with iron, lead and
cyanide.
Small reverse osmosis
systems (called point-of-use systems) in homes are usually located near the
kitchen sink.
Reverse osmosis
systems are cost-effective, and originally were able to only produce a few
gallons of treated water each day.
Recent advancements
in membrane elements allow newer systems to produce 100 gallons or even more
per day.
Keep in mind that the
taste of the water can be affected by the removal of the minerals.
Ion exchange filters
work by removing cyanide ions by adsorbing them onto special resins designed
for removing cyanide.
This removal takes
place in filter cartridges that may be part of point-of-use systems (near the
kitchen sink), or it can take place in point-of-entry systems that treat all
water entering the house.
The filters in filtration systems need to be replaced or regenerated periodically to maintain their effectiveness over time .
Our
company was created with the goal to provide clean drinking water along with
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https://www.filterwater.com/t-cyanide.aspx
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