Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster.
The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website.
By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.
Urine, sand and bacteria in and bricks & fertiliser out and all at room temperature. Traditional brick manufacture use vast amounts of energy in the firing and produces a lot of CO2. Whats not to like?
As my earlier posts in this thread point out phosphates are running out (post #6) and India has an acute water shortage and are consequently not going to be able to achieve its goal of stopping 100s of millions of people defecating and urinating in the open by using flush toilets (#3).
Unfortunately the article does not give enough detail to 'try-it-at-home' or I would. If you see anything with that info. please post.
The linked paper at https://www.sciencedirect.com/science/article/pii/S221334371830188X only has an abstract - the rest is behind a pay firewall.
In this study, we investigated the use of a natural process called microbial induced calcium carbonate precipitation (MICP) to ‘grow’ bio-bricks using the urea present in human urine. We first collected fresh urine and stabilized the urine with calcium hydroxide. This prevented any significant loss of urea which allowed it to then be used for the MICP process. We used Sporosarcina pasteurii bacteria to help drive the MICP process. The bacteria degraded the urea present in the urine to form carbonate ions which then combined with the calcium ions present in the urine solution to produce calcium carbonate. This calcium carbonate was then used as a bio-cement to glue loose sand particles together in the shape of a brick. The maximum compressive strength we obtained for a bio-brick was 2.7 MPa which compares well with conventionally made bricks. We successfully showed that human urine can be used to manufacture bio-bricks thus offering an additional use of human urine.
https://www.sciencedirect.com/science/article/abs/pii/S0043135419304579
“Nature knows no waste, and that’s where I take inspiration from for much of our work,” said Dyllon Randall, associate professor in water quality engineering at the University of Cape Town.
The chemical engineer and his team, which includes graduate students Vukheta Mukhari and Suzanne Lambert, developed a system in which urine is piped through a mould containing a mixture of sand and gravel.
__________________________________________
... The team still has to figure out how to produce bio-bricks at scale, though Randall points out that US firm BioMASON has already achieved this. ( link above)
