Wastewater Vol 1

Front 1

What are the three types of Trickling Filters

Back 1

Standard Rate
High Rate
Roughing FIlter

Front 2

Standard Rate Tricking Filter
Hydrulic Loading -
Organing Loading -
Typical Media -
Depth -

Back 2

Hydrulic Loading - 25 to 100 gal/day/ft2
Organing Loading - 5 to 25 lbs BOD/day/1000ft3
Typical Media - Rock
Depth - 6 to 8 feet

Front 3

High Rate Trickling Filter
Hydrulic Loading -
Organing Loading -
Typical Media -
Depth -

Back 3

Hydrulic Loading - 100 to 1000 gal/day/ft2 ROCK
350 to 2100 gal/day/ft2 SYNTHETIC
Organing Loading - 25 to 100 lbs BOD/day/1000 ft3 ROCK
50 to 300 lbs/day/1000ft3 SYNTHETIC

Depth -

Front 4

Roughing Filter
Hydrulic Loading -
Organing Loading -
Typical Media -
Depth -

Back 4

Hydrulic Loading -
Organing Loading - 100 to 300 lbs BOD/day/1000ft3
Typical Media -
Depth -

Front 5

Trickling Filter growth typicall sloughs off in...

Back 5

Spring and Fall

Front 6

Best time to start a Tricking Filter

Back 6

Late April through Early June

Front 7

Trickling Filter Daily Operations/Observations

Back 7

Ponding
Filter Flies
Odors
Plugged Orifices
Distributor Arms

Front 8

Tricking Filter Recirculation Rate -

Back 8

Use the lowest recirculation rate that will produce good results.

Front 9

Trickling Filter DO's
Rock - ___
Synthetic - ___

Back 9

Rock 3 to 6 mg/L

Synthetic 4 to 8 mg/L

Front 10

Trickling Filter Flies - Corrective Actions

Back 10

- Increase Recirculation Rate - 200 GPD/ft2
- Keep Orifice Openings Clear
- Insecticides
- Flood Filter 24 hours
- Dose with 1mg/L chlorine