| A mined ore,
CQ-PY effectively reduces iron, sulfur and manganese from problem water.
A naturally mined ore, CQ-PY ® is a mineral form of manganese dioxide
which has been used in water treatment for more than 75 years. CQ-PY ®
is a granular filtration media for hydrogen sulfide, iron and manganese
reduction. CQ-PY ® functions as a catalyst, but itself remains relatively
unchanged. CQ-PY ® works on a principle whereby the hydrogen sulfide,
iron and manganese are oxidized and trapped on the media while simple backwashing
cleans the bed. No chemical regeneration is required, nothing is imparted
into the drinking water and CQ-PY ® has a high capacity for low contaminant
concentrations. CQ-PY ® can be used in conjunction with aeration,
chlorination, ozone or other pretreatment methods for difficult applications.
Chlorine or other oxidants accelerate the catalytic reaction. Because of
its heavy weight, it is very important that CQ-PY ® filters are backwashed
properly to insure adequate bed expansion and continued service life. |
 |
|
ADVANTAGES
-
Effective Reduction
of Iron, Sulfur and Manganese
-
Durable material with
long service life and low annual attrition of bed
-
No chemical regeneration
required only periodic backwashing
PHYSICAL PROPERTIES
-
Color: black
-
Bulk Density: 125
lbs./cu. ft.
-
Mesh Size: 8 x 20
-
Effective Size: 0.51
mm
-
Uniform Coefficient:
1.7
-
Specific Gravity:
3.8
CONDITIONS FOR
OPERATION
-
pH: 6.5-9.0
-
Bed depth: application
dependent
-
Backwash flow rate:
14gpm
-
Backwash expansion:
15-30% of bed depth
-
7 gpm service flow
rate
-
Freeboard: 40% of
bed depth (min.)
Service Flow Rate
Service flow rate
is the maximum gallons per minute recommended for obtaining excellent water
quality. Exceeding the service flow rate will cause a reduction in the product
water quality.
Backwash Flow Rate
Backwash flow rate
is the minimum gallons per minute recommended for proper reclassification
of the media or resin. Insufficient backwash flow rate will cause inadequate
media or resin reclassification and, over time, may reduce its effectiveness.
Calculating Your
Flow Rate
You will need a watch
with a second hand and a 1 or 5 gallon container to measure your flow rate
with the instructions below.
-
Using the bathtub
as the measuring point, open BOTH the hot and cold water faucets completely
(If you have a well water supply, wait until the pump kicks on before
continuing.)
-
Place either a 1 or
5 gallon container under the faucet and measure the amount of time it takes
to fill the container in seconds.
-
Refer to the chart
below. Find the row on the left that contains the size of the container you
used to fill with water, either 1 or 5 gallons.
-
Then, find the column
across the top that is closest to the number of seconds in took to fill the
container.
-
The value in the table
at the intersection of the row and column you determined is your flow rate
in gallons per minute.
| Seconds
to Fill Container |
| Container
Capacity (gal) |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
85 |
90 |
| 1 |
12.00 |
6.00 |
4.00 |
3.00 |
2.40 |
2.00 |
1.71 |
1.50 |
1.33 |
1.20 |
1.09 |
1.00 |
0.92 |
0.86 |
0.80 |
0.75 |
0.71 |
0.67 |
| 5 |
60.00 |
30.00 |
20.00 |
15.00 |
12.00 |
10.00 |
8.57 |
7.50 |
6.67 |
6.00 |
5.45 |
5.00 |
4.62 |
4.29 |
4.00 |
3.75 |
3.53 |
3.33 |
|
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