Sanitary Sewage Flow Rate
Sanitary Sewage Flow Rate
(OP)
Where can I find the sewer flow data for a manufacturing plan (gal/day). I need to provide the daily sewage flow.
I though of using water supply fixture units (wsfu) and converting them to gpm (water in = water out)using a diversity curve that is used in plumbing codes books. The number I get seems to much. Is this correct, or Is there another way of figuring this?
I though of using water supply fixture units (wsfu) and converting them to gpm (water in = water out)using a diversity curve that is used in plumbing codes books. The number I get seems to much. Is this correct, or Is there another way of figuring this?





RE: Sanitary Sewage Flow Rate
35 gpd per employee at 0.08 lb BOD/day.
Cite Metcalf & Eddy's Wastewater Engineering.
Also cite PA Code, Title 25, Chapter 73.17
Remember: The Chinese ideogram for “crisis” is comprised of the characters for “danger” and “opportunity.”
-Steve
RE: Sanitary Sewage Flow Rate
RE: Sanitary Sewage Flow Rate
RE: Sanitary Sewage Flow Rate
Likewise, the 35 gpd assumes a "typical" factory. I would assume it accounts for a small admin staff, but not a large one, such as an engineering firm would have. Also, a small-to-mid-sized lunch/break room and possibly limited food prep, but no full-scale restaruant. This is why these numbers are NOT for final design, but for rough, initial conservative estimating. You need much more info about the specific plant to pinpoint its flows.
Notice the 35 gpd does not account for any industrial processes. Those will range from nothing to many 1,000s of gallons, and will have to be addressed accordingly (if they are particularly large and/or contaminated, they will require pretreatment).
Remember: The Chinese ideogram for “crisis” is comprised of the characters for “danger” and “opportunity.”
-Steve
RE: Sanitary Sewage Flow Rate
RE: Sanitary Sewage Flow Rate