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Low-cost decentralized sanitary system for treatment, water and resources recovery

2011 - 2014 • National University of Singapore (NUS)
project database

Purpose

Providing low-cost decentralized sanitary system for treatment, water, and resources recovery which as a next step has to be affordable and effective without the input of electricity.

Activities

This toilet block integrates energy and water reuse in a single sanitary system. It uses biochar or animal dung to: i) dry feces (covered with sawdust) and convert dried feces into biochar under oxygen-deficit environment for subsequent combustion (i.e., energy recovery from feces); and ii) extract water from urine by boiling under reduced pressure conditions to produce potable-grade water after ion exchange resins and activated carbon treatment. The base component is a urine diversion dehydration toilet.

Countries of activity

Location of main activity

Objectives

Objective 1: Construction, optimization and mechanization of pneumatic urine-diversion dehydration toilet.
Objective 2: Development and optimization of options for urine concentration and water recovery and disinfection
Objective 3: Development of feces collection/drying/combustion chamber

Further information

This was an RTTC grant.

Filter tags

Bill & Melinda Gates Foundation East Asia & Pacific Fundamental research and engineering Global Product design and engineering Treatment of wastewater or greywater University, education or research institution

Links

Discussion on the forum

Documents not available, see BMGF grant database (first grant)

Documents not available, see BMGF grant database (second grant)

Uploaded by:
Trevor Surridge (tmsinnovation)

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