Sewer Storage Structure
Sewer Storage Structure
(OP)
Hi Guys,
I have a subdivision project which is just outside of a city. We unfortunately just found out that the main sewer networks that serve the city do not extend outside to this particular area. So the client has instructed us to design a temporary sewer storage well that wouldn't take up too much horizontal space and would only require a pump out once in 6 months.
Note that there are more than 100 lots in this subdivision and it is in a developing country located in the tropics with predominantly wet and hot weather all year round. We have ruled out construction of sewer lagoons due to it being not practical, unavailability of land space, risk of inadequate treatment before discharging into natural watercourse and breeding of mosquitoes. Also, the client prefers a sewer network rather than stand-alone septic tanks.
Is it even possible to construct a reliable and lasting storage well? If so, what are some of the very important factors that need to be considered?
I have a subdivision project which is just outside of a city. We unfortunately just found out that the main sewer networks that serve the city do not extend outside to this particular area. So the client has instructed us to design a temporary sewer storage well that wouldn't take up too much horizontal space and would only require a pump out once in 6 months.
Note that there are more than 100 lots in this subdivision and it is in a developing country located in the tropics with predominantly wet and hot weather all year round. We have ruled out construction of sewer lagoons due to it being not practical, unavailability of land space, risk of inadequate treatment before discharging into natural watercourse and breeding of mosquitoes. Also, the client prefers a sewer network rather than stand-alone septic tanks.
Is it even possible to construct a reliable and lasting storage well? If so, what are some of the very important factors that need to be considered?





RE: Sewer Storage Structure
You could use the Mono Pumps individual tank and pump with a network of PE pipes to gather the sewage at the bladder tanks or a centralised treatment facility. http://www.monopumps.com.au/en-au/packaged-systems
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RE: Sewer Storage Structure
RE: Sewer Storage Structure
If this was in the US, I'd figure on 100 gallons of sewage per capita per day. For your 100 unit subdivision, that would amount to 25,000 gallons of sewage per day (with an average of 2.5 people per unit) - enough for more than six 4,000 gallon trucks per day. I don't think pumping into trucks is feasible, and don't see why storing sewage for 6 months is desirable.
I think your client needs to extend the sewer to his subdivision, or build his own treatment facility.
RE: Sewer Storage Structure
RE: Sewer Storage Structure
If you assume a flow of 30 gpd per person or 105 gallons per household per day, you can probably transport this volume by tank truck.