The odor control system is a dual-train
2-stage wet process system. The process involves odorous air from the facilities
degasifiers entering the first stage scrubber from the bottom, where it is drawn upward
through the system's synthetic media exiting from the top into ducting where it is carried
to the bottom and enters the bottom of the second stage, again flowing upward through the
similar media to the first stage and exiting through a tall stack to atmosphere. The
concentration of hydrogen sulfide in the odorous gas is reduced more than 99%.
Additionally, chemically treated water is recirculated from the lower sump and sprayed out
above the media which acts to increase the air to water interface and causes the hydrogen
sulfide to be adsorbed into the water. Sodium hydroxide in the first and second stages.
While sodium hypochlorite is added only to the second stage. A continuous overflow of
makeup water carries away the precipitated sulfides formed during the chemical reaction
and is disposed of directly into the County wastewater system.
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INJECTION WELLS |
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Concentrate or reject from the membrane
process is collected in a sump and pumped from there into deep injection wells. There are
two wells #1 is 3330 feet deep, #2 in 3200 feet deep.A hydropneumatic tank supplies air
pressurized water to packing which interfaces with the deep well aquifer this prevents
flow up through the annulus space between the well casing and the discharge piping.
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