storage tanks also provide flexibility to store the septage load
while analyses are being performed. Provisions should be made
for mixing the contents of the storage tank. The storage can be
provided either upstream or downstream of the screening and grit
Lift Station. A lift station is typically
required to pump the septage from the receiving station to the
downstream septage treatment processes.
Odor Control Capability. The extent of the odor
control that is required depends on the location of the facility
relative to the surrounding area and the land use of that area.
Many of the odors can be minimized by following good housekeeping
practices. The dumping area should be hosed down after each
delivery (preferably by the hauler), the bar screens should be
kept clean, and the waste solids removed during pretreatment
should be dewatered and disposed of as soon as practicable.
If the odors are excessive and must be eliminated, the
specific sources of the odor should be identified and contained,
and the odorous air should be vented to a treatment unit.
Several treatment technologies are available, including liquid
chemical scrubbers, activated carbon filters, biofilters, and the
addition of gases to a biological treatment process.