Dnkldorf;
Scott, or anyone..what happens to the waste they remove from the water?
Does this go to the salt flats, or is this somehow reduced somewhere to it's original components?
I am unsure what is done with the remaining materials from Extraction on
Nick's project, but on the Project I did, the resultant Chemicals were either isolated and reclaimed for later usage, or they may become "Stabilized" by Chemical Treatments, and therefore become "Non-Threatening" Molecules, which would be allowed to be placed back into the extracted water.
The GWR setup I was involved with is different than the one which Nick is doing.
Nick's Project reclaims as much Groundwater possible, then uses it to replenish an Aquifer at some location - in this case, the Aquifer is about 10 Miles North of the Equipment Compound / Wells Location
(FYI: an "Aquifer" is similar to an Oil Pocket - it consists of a "Sponge-Like" layer of Permeable Rock, Sand or Gravel - in which Groundwater is contained.)
The GWR Project I worked on (Designed the Electrical Systems, did the Electrical Engineering, played Project Manager / Foreman) is intended to extract the Groundwater from an Aquifer, which had been contaminated by Accidental (??) Chemical spillage, treat the extracted water, then eject the clean treated water into the local City Storm Drain (after verification of decontamination).
The site was a recently closed and demolished Metals Plant.
The Buildings are all dismantled, and the site is a HUGE empty lot.
Here is an idea of the Extraction Process:
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[*] Preliminary tests were made on the site at several points across each "Incident Zone",
[*] The Chemical Engineer analyzed the samples to determine what Chemicals are to be dealt with, along with the level of contamination at certain points,
[*] Chem. Engineer submits that data to the Environmental Services Engineer, who plots points for Wells to be drilled,
[*] On this Project, Wells were placed in a "Circular Fashion" around the "Incident Zones", plus one Well set in the center of the "Incident Zones". An additional "Line" of Wells were placed in the flow pattern of the Aquifer, to catch anything that might pass through the initial Well Pumps - each Well contains a 5 HP or 7½ HP VFD type Pump,
[*] The Environmental Engineer submitted their Electrical Equipment data to me, and I designed the Electrical Systems (service, connections to loads, controls, etc.), performed the necessary Electrical Engineering, created the necessary Plansets and Contract Documents, and submitted the necessary items to the City for Plan Check and obtaining Permit,
[*] All Well Pumps are fed / controlled from Equipment on a Centralized Equipment Compound. Along with this, all the Well Pumps send the extracted Groundwater to treatment equipment on the same Equipment Compound,
[*] The Extracted Groundwater gets Pumped into a holding vessel, along with any water that accumulates on the Compound's floor (gets pumped out of a sump),
[*] The accumulated water gets treated with Hydrogen Peroxide and Oxygen, along with some type of catalyst,
[*] The treated water gets pumped into a large holding tank, for verification of "cleanliness",
[*] Samples are drawn from the holding tank, and are analyzed on site,
[*] If the test samples pass, the water held in the holding tank gets pumped out, into a local City Storm Drain,
[*] The Extracted Contaminates are held in various storage tanks, which may be taken off-site over regular intervals, and sold off as usable Chemicals for Industrial processes - otherwise are held in "Haz-Mat" storage facilities, or they are ReDox'ed into safe Molecules, which get sent out with the cleaned water into the Temporary holding tank,
[*] All Equipment and tanks have status indicators, which inform the overall status of the site to the Environmental Management Company, as to indicate service intervals and trouble. This is done via Analog MODEM from the PLC Equipment (at the "Master" Controller).
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This particular site will have the Extraction Process going on for at least 20 Years!
We had to bring in a "Sort-Of Temporary" Service for this Equipment Compound, via Temporary Power Poles.
The Transformers were on the Street, about 1,200 Feet from the actual Equipment Compound.
The kWh Meter is on the "First" Pole, closest to the Street. From there, the Customer's Side is strung over a distance of at least 1,100 Feet via Temp. Poles.
At the Equipment Compound, there is a fusible Disconnect mounted on a Temp. Pole.
This feeds the first Panelboard in the Equipment Compound.
The Temporary Poles situation was done due to the future plans for the site to be developed into a Commercial Office Building (Tilt-Up).
This is to be done within the next 5 Years.
When this is done, the Equipment Compound will be fed by an Underground Service Lateral.
I will see if I can locate the Pictures of this site.
Scott35
edited to fix a few spelling goofs, and to address "Dnk's" question in a little detail.
S.E.T.
[This message has been edited by Scott35 (edited 06-07-2006).]
