PW E-Cell Treatment Report Company
Pond Water
Company personnel
provided NEAT with 2 – five gallon containers of Pond Water taken from the holding
pond. These samples were taken by Company
personnel and shipped to NEAT.
NEAT personnel
completed PW E-Cell treatments on this pond water in their shop in
Objective of the
initial PW E-cell test was to develop a treatment procedure for treatment of
the pond water and to see if the treated water from the PW E-cell treatment
would be suitable for recycling. NEAT
has presented the following information to Company management for their
review. From test results, we believe it
is reasonable to believe that the system will work very well.
Figure 1.0 - Raw Pond water 5 gallon Sample
provided by Company personnel. At pH 6.90
As shown in the
sample above there was a red colouring to the water. There was a limited amount of sludge in the effluent
when the water in the pail was stirred the pail prior to PW E-cell treatment.
At this time, the pH
was taken and was @ pH 6.90 and there was no odor. When the PW E-cell treatment was done, there
was “No” pH adjustment done. If the pond
water can be ecell treated without pH adjustment, then the pH probe and
metering pump for caustic addition will not be required, providing savings in
the equipment set, less maintenance and much cleaner treatment process.
Page 2.0 Powell
Water E-cell Test Treatment Report N.E.A.T.
Environment, Inc.
The first 5 gallons of effluent was ran
through the ecell @
1 chamber @
110v. x 6 amp at about 100% amperage power
The
treated water and floc flow over the weir provided clear water
With dark green to black floc which precipitated very quickly.
Fig. 2.0 – PW E-cell chamber with
overflow treated water.
Clear water with development of floc at
top of chamber.
Figure 3.0 - Powell Water 1.5 gpm E-Cell treating
Company pond water
Page 3.0 Powell
Water E-cell Test Treatment Report N.E.A.T.
Environment, Inc.
Figure 4.0 – Comparison of the raw pond
water with
PW E-cell treated water. Very heavy Floc with clear water.
E-Cell treated pH 7.73
From the two test
runs, we felt that the 1 chamber treatment handled the treatment of the pond
water very well. On the first 5 gallon
treatment, the ecell was operated @ 100% amperage power. On the second 5 gallon treatment, the chamber
operated @ 50% amperage power. Both
treatments had dark green floc and clear water.
The second 5 gallon pail of effluent was ran
through the ecell @
1 - chamber @
110v. x 4 amp at about 50% amperage power
The treated water
and floc flow over the weir provided clear water with dark green to black floc
which precipitated very quickly.
Figure 5.0 – PW E-cell treated pond
water, with the first treatment column on the right.
The lower power - 2nd 5
gallon treatment on the left.
Page 4.0 Powell
Water E-cell Test Treatment Report N.E.A.T.
Environment, Inc.
Figure 6.0 - The floc precipitation is heavy and settles
fairly quickly.
The column shown above on the left is
about 5 mins after collection from chamber.
Figure 7 – 12 hour settlement time. Sludge
could be dewatered with a filter press
Or by dewatering drip tank, which is
fairly slow.
Page 5.0 Powell
Water E-cell Test Treatment Report N.E.A.T.
Environment, Inc.
From a previous
email from Company, the pond water flow was estimated to be @ 600 Liters per
hour. This would be approximately 160
gallons per hour and 2.6 gallons per minute.
We would suggest that the smallest Powell Water E-Cell that would be
installed, would be the 3 gallons per minute.
If there is larger flows expected and limited holding capacity, the a 6
gallon per minute would be recommended.
The PW E-Cell tests
were very successful and the Pond water treated easily at the effluent pH that
was collected from the pond. From the
test, we would expect that the only requirement for the pond water to be
recycled to the water reuse system would be the separation of the sludge from
the ecell treated water by filter bag or filter press. A polishing bag filter might be used to
filter out the small pin floc. The ecell
treated water would go to a holding tank to be used as required.
NEAT can supply the air
diaphragm sludge pump and filter press for the dewatering system. Sludge should be able to be disposed to a
non-haz industrial landfill. The
polishing filter for water recycle can be purchased by Company or NEAT provide
it.
At this time, NEAT
has not provided the cost of treatment per 1000 gallons of water. We would require the cost of electricity that
is paid at the Company shop. Once that
has been provided, we can provide an estimate.
The cost per 1000 gallons, should be very low.
We have attached a
flow chart that we believe would work well for the ecell treated decant water
and floc separation. Once Company
management have had a chance to review this test report and the flow chart ,
then I will call and we will review the material make adjustments as required
and provide a final quotation for supply of the Powell Water E-cell and
equipment as required.
Presented by : Ken Gardner,
President
N.E.A.T. Environment,
Inc.
June 03, 2005