Waste: How can fecal waste be managed/treated without water?

Posted by Geet Rao on 07 Jun, 2018

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Eco-Lat: A smart, low maintenance toilet cabin

Posted by Anirudh Yadav on 11 Jun, 2018

My company, Sukriti has designed a smart public toilet called 'Eco-Lat', which is automated for self-cleaning and self-maintenance. It treats and reuses the waste on-site and works on renewable energy. Some of the features of the Eco-Lat are:

Eco-Lat comes with the following features:

  • Smart cabin hygiene maintenance system:  decides when to flush, when to clean the toilet floor, and how much water to use for it.  
  • User entry management system: decides whether to allow the user to enter or not. In case of empty water tanks or chokes in the toilet, the user is simply not granted entry. 
  • Underground waste treatment unit: treats the waste on-site; the treated water can be reused for flushing and floor cleaning, thus saving 90% water in the process.
  • Centralised toilet health monitoring system: conveys health of the toilet to a centralised monitoring station from where maintenance schedules can be taken.
  • On-site waste treatment system: treats all the waste water generated, using renewable energy, that can then be reused for horticulture purposes or for recharging the ground water.
  • Solar panels: cater to the electrical needs of the system by harnessing free sun-power.
  • Design: prefabricated unit with no physical sensing elements that can be broken, stolen or damaged, making it a robust system that can withstand rough public usage. A fool-proof bypass mechanism ensures function even in case of electronic failures.

I'd be very happy to work together to install such a toilet model. We have already developed the technology. You can check our website here: www.sukriti.ngo

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Waterless Toilets

Posted by Vivek Mehta on 09 Jun, 2018

Geet's idea of not using water in toilets is spot on. Apart from the fact that sewage water needs extensive treatment, using water for flushing ultimately means that water is wasted -- in many cases, drinking water.

Flushing toilets is the largest single use of  a household's indoor water consumption, making up roughly 30% of indoor water consumed.

This is where waterless toilets come in. A community toilet from the company Ecosan, set up in the Musiri community in Tamil Nadu, India, makes use of minimal water for disposal of waste matter. The commode works on a segregate system where the fecal matter, water used for cleansing, and urine are segregated. This system helps converting the fecal matter to manure that can be used for agriculture, used in place of urea for the plants and for recharging the groundwater level.

There are many companies that now design waterless toilets. For instance, the company Separett has its Villa and Weekend families of composting, urine-diverting toilets. Handling the urine separately reduces the smell dramatically and reduces the volume of waste to handle very much.  These toilets require electricity and ventilation to function, though. Similarly, the company Ekolet designs composting, dry toilets which are completely odorless, and combine the features of an outdoor toilet and a urine separating toilet. The outdoor compositing toilet models don’t even require electricity.

There needs to be a shift in how we think about waste and how we dispose of it. As the founder of the World Toilet Organization, Jack Sim says, "The human body is designed to separate solids from liquid waste," and we should follow suit." By separating fecal matter from urine at the source in what's called a "urine diversion toilet," a wider ecological system of waste disposal becomes possible. Solids can be composted for fertilizer and harvested for methane gas. Urine can be used to produce phosphorous and nitrogen and clean, drinkable water.

 

Taken from:

https://www.separett.com/en-gb/our-products/toilets/urine-diverting-composting-toilets

http://ekolet.com/

Time, originally posted by Don Duncan (http://content.time.com/time/health/article/0,8599,1857113,00.html)

The Logical Indian, originally posted by Swarnami Mondal (https://thelogicalindian.com/my-social-responsibility/toilets-without-water-solutions/)

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