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Pr el im in a ry, Fusion, Operation and maintenance, continued – Clarus Environmental Fusion Series Treatment Systems 450/600/800 User Manual

Page 13

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PR

EL

IM

IN

A

RY

RECIRCULATION SYSTEM

1. Measure the recirculation flow

2. Cleaning

BACKWASH SYSTEM

1. Measure the current backwash flow

2. Cleaning

3. Alternating backwash time and frequency

BLOWER AND

CONTROL PANEL

1. Power failure

2. Blower timer setting

3. Noise and vibration

4. Air filter replacement

5. Diaphragm replacement

Figure 17 - Inspection details

FUSION

®

OPERATION AND MAINTENANCE, continued

OPTIONAL WATER QUALITY ANALYSES

1. Transparency – A transparency reading more than 20

cm is preferred.

2. Scum – Should not be present unless recirculation

and/or backwash rate is too high or daily flow exceeds

design capacity. To correct, reduce the recirculation and

or backwash rate.

3. Sludge – A range of 0” to 15” (0-38 cm) is preferred.

Typically brown and settled, becomes gray to black

as depth and digestion increases. More than 15” (38

cm) may require a reduction in recirculation rate. A

sludge accumulation of greater than 24” (61 cm) in the

sedimentation and 15” (38 cm) in the anaerobic chamber

requires pumping.

PART C: Sedimentation Chamber collect samples

from the outlet baffle of the sedimentation chamber for the

following analyses:

1. Scum – 0” to 12” (0-30.5 cm) is common, so long as it

is not rising above the partition wall. If so, punch down

using ladle.

2. Sludge – A range of 0” to 24” (0-61 cm) is common.

Typically brown and settled, becomes gray or black as

depth and digestion increases. A sludge accumulation

of > 24” (61 cm) in the sedimentation chamber and 15”

(38 cm) in the anaerobic chamber requires pumping.

PART D: Clean Water Storage Chamber – samples should

be collected as previously described.

1. NO

3

-

N – Determined with the use of the nitrate test strips

included in the Fusion Maintenance Kit. Dip a test strip

into the water sample for 1 second, remove, allow to

react for 60 seconds, and read by comparing to the color

chart provided on the container. Nitrate-nitrogen is the

final step in the oxidation of ammonia. The test strips

provided range from 0-50 mg/L. Average is 7.0mg/L. No

or low nitrate concentrations are common in systems

where nitrifying microbes are absent. To correct high

nitrate concentrations in established systems increase the

recirculation rate.

2. NH

3

-

N – Determined with the use of the ammonia test

strips included in the Fusion Maintenance Kit. Dip a test

strip into the water sample and move up and down for 30

seconds, remove, allow excess water to drain, allow to react

for 30 seconds, and read by comparing to the color chart

provided on the container. Ammonia-nitrogen is measured

using low range test strips, 0-6 mg/L. Average is 3.0

mg/L. Low ammonia readings are desirable and require no

changes. To correct high ammonia readings decrease the

recirculation rate.

3. Dissolved oxygen – Follow the instructions included

with the dissolved oxygen meter. D.O. should be measured 25

inches (635 mm) below the water level. Average is 2.0 mg/L.

4. Temperature – Most dissolved oxygen meters include

a built-in thermometer which can be used to measure

temperature. Varies with system location.

PART E: Anaerobic Chamber – samples should be

collected and analyses performed as previously described

1. pH – The range suitable for biological activity is 6.5

to 7.5. Recurring results outside this range should be

investigated – water source for the home or business,

chemical use, etc.

2. NO

2

-

N – < 3.0 mg/L is common for this chamber.

Adjustments should be based on water quality in the

clean water storage chamber.

3. NO

3

-

N – < 2.0 mg/L is common for this chamber.

Adjustments should be based on water quality in the

clean water storage chamber.

4. NH

3

-

N – Ammonia-nitrogen in this chamber is typically <

20.0 mg/L. If this test is desired, it should be conducted

with test strips suitable for the expected concentration.

Adjustments should be based on water quality in the

clean water storage chamber.

5. Dissolved oxygen – Typically < 0.5 mg/L.

6. Temperature – varies with system location.
PART F: Sedimentation Chamber - samples should be

collected and analyses performed as previously described.

1. pH – The range suitable for biological activity is 6.5

to 7.5. Recurring results outside this range should be

investigated – water source for the home or business,

chemical use, etc.

2. NO

2

-

N – < 2.0 mg/L is common for this chamber.

Adjustments should be based on water quality in the

clean water storage chamber.

3. NO

3

-

N – < 2.0 mg/L is common for this chamber.

Adjustments should be based on water quality in the

clean water storage chamber.

4. NH

3

-

N – Ammonia-nitrogen in this chamber is

typically < 30 mg/L. If this test is desired, it should be

conducted with test strips suitable for the expected

concentration. Adjustments should be based on

water quality in the clean water storage chamber.

5. Transparency – Typically < 15 cm. Adjustments should

be based on water quality in the clean water storage

chamber.

6. Dissolved Oxygen – Typically < 0.5 mg/L

7. Temperature – Varies with system location