Open Source Biodigester Calculations: Difference between revisions
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*Limit is water volume handling from appliances, assuming that this water dilutes organic waste sufficiently | *Limit is water volume handling from appliances, assuming that this water dilutes organic waste sufficiently | ||
*Thus, must essentially design for toilet flow, as a dishwasher uses about 1 gallon per person per day [https://www.google.com/search?q=is+it+fair+to+say+that+a+dishwasher+uses+1+gallon+per+person+per+day+to+handle+all+dishwash%3F] and average toilet flow is 12 gpppd (gallons per person per day) [https://chatgpt.com/share/696bc6ef-5930-8010-808b-f2f946aed2fb] and 8 gpppd for efficient toilets. | *Thus, must essentially design for toilet flow, as a dishwasher uses about 1 gallon per person per day [https://www.google.com/search?q=is+it+fair+to+say+that+a+dishwasher+uses+1+gallon+per+person+per+day+to+handle+all+dishwash%3F] and average toilet flow is 12 gpppd (gallons per person per day) [https://chatgpt.com/share/696bc6ef-5930-8010-808b-f2f946aed2fb] and 8 gpppd for efficient toilets. | ||
*In the [[Supertoilet]] case, we have a figure of 0.5 gpf or 1 gpf. - with most flushes at half - so an average 6 toilet flushes per day [https://chatgpt.com/share/696bc6ef-5930-8010-808b-f2f946aed2fb] | *In the [[Supertoilet]] case, we have a figure of 0.5 gpf or 1 gpf. - with most flushes at half - so an average 6 toilet flushes per day [https://chatgpt.com/share/696bc6ef-5930-8010-808b-f2f946aed2fb]. That is 4 gpd assuming 4 ppd and 2 spd. | ||
Revision as of 17:36, 17 January 2026
Number of People Served
Design goal for scalable systems is for a 16x16 foot room to handle the waste of 100 people [1], 100 chickens [2], or 25 pigs [3]. This is a design that can handle pigs if humans chose pork and beans as their protein staple.
With biodigester totes (1 cubic meter) stacked 2 high - a 16x16 foot room can accommodate 32 of such totes.
Chat says 1 cubic meter serves 4 people.
First Principle Calculation
- Limit is water volume handling from appliances, assuming that this water dilutes organic waste sufficiently
- Thus, must essentially design for toilet flow, as a dishwasher uses about 1 gallon per person per day [4] and average toilet flow is 12 gpppd (gallons per person per day) [5] and 8 gpppd for efficient toilets.
- In the Supertoilet case, we have a figure of 0.5 gpf or 1 gpf. - with most flushes at half - so an average 6 toilet flushes per day [6]. That is 4 gpd assuming 4 ppd and 2 spd.