Waste Treatment
At
The Chemical Waste Treatment System
Three waste streams
have been identified for treatment; photographic wastewater solutions,
acidic & basic
corrosive aqueous solutions and aqueous solutions with trace organic compounds
by using the application of different types of technology, Ion exchange,
Neutralization, Oxidation. After
proper treatment, the hazards once present in the wastewaters are eliminated.
What remains is water that can be sent to the City of
General Processes Description:
Silver
Recovery/Recycling_________________________________
“Great
for jewelry, but not for drinking water”
Using an ion exchange system, Silver compounds found in
photographic solutions can be removed. The silver is trapped in a cartridge for
future recovery / recycling.
Neutralization__________________________________________
“Sodium Hydroxide & Hydrochloric Acid to
Water & Sodium Chloride”
[ NaOH + HCL → H2O + NaCL
]
Pure acids and bases in aqueous solutions can be used to
neutralize each other, in effect canceling out their corrosive natures. All
that remains after the reaction is water and common salt compounds. Sodium
chloride and potassium sulfate are two examples of the salts that remain.
Oxidation_____________________________________________
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O3 or ozone oxidation can be used to split various
carbon bonds that compose organic toxins. Organic compounds are reduced to a
manageable form that can be handled by City wastewater treatment systems. In
addition to this, further purification is conducted by ultraviolet light,
leaving us with only non-toxic, drain disposable components.