Full Answer
What is level control in a splitter box?
Level control in the splitter boxes helps maintain balanced routing of influent wastewater in the primary sedimentation process where 50 to 70 percent of the suspended solids are removed, and in the secondary sedimentation process where remaining suspended solids are removed.
What is a concrete tank with chambers and gates called?
Wastewater treatment facilities with a large number of primary clarifiers often employ a concrete tank with chambers and gates known as a splitter box , or distribution box, to split the influent flow into multiple streams that are routed into the bank of clarifiers. A similar device may also be used to split mixed liquor flows between secondary clarifiers.
What is a Zoeller splitter?
Zoeller's Splitter uses a series of internal baffles to control the routing of effluent among drainfield lines. One reason we might need the baffles and more precise control of effluent distribution through the D-box (or Splitter) is that Zoeller, who manufacture sewage grinder pumps and septic effluent pumps, ...
What is a diverter valve?
A diverter valve, also sometimes called a flow control valve, for septic systems is in essence a switch that will either. 1. choose which of two (or more) destination drains, pipes, drainfields, or seepage pits to which to send wastewater. or in some designs.
How long does it take for a biomat to break down?
Because once a biomat has begun to clog the soil around a drainfield trench or septic seepage pit wall it can take a year or even several years of total rest for the soil bacteria to break down the biomat layer enough to restore the field and soil percolation rate.
What happens if you push solids into a septic tank?
Sorry to bring bad news, but if there were solids all the way to the septic tank lid underside then the tank was flooded and its outlet probably blocked by sewage; worse, having pushed solid sewage into the drainfield means a shortened or ended drainfield life.
Does effluent flow through a D box?
At high velocity, effluent entering a conventional D-box may not flow uniformly among the multiple box outlets - instead it would charge across the box and flow mostly into the effluent line directly across from the inlet pipe.
Is there a difference between a D box and a splitter box?
Basically there is no difference in function between a D-box and a Splitter box. All D-boxes have some capability of adjusting the flow of effluent among different D-box outlets - a technique that can extend drainfield life by giving some drainfield sections a rest for two years or so between services.
What is a biofilter?
Biofilters will be used for odor control for the primary clarifiers (new Plant 1 and existing Plant 2) and for the new headworks facilities. The primary clarifiers will be covered with low profile aluminum domes for odor control. The biofilter is estimated to be 150 feet by 200 feet.
What is added to the plant 2 sludge?
The Plant 2 primary sludge is thickened in the primaries and is pumped directly to the anaerobic digesters. Ferric sulfate is added to the Plant 1 primaries to keep the RWQCP hydrogen sulfide levels within the South Coast Air Quality Management District (SCAQMD) limits.
Can biofilters be used for odor scrubbing?
Since sufficient land is available at the RWQCP, it was decided at the project meeting on September 20, 2006 that biofilters would be used for odor scrubbing.
