Research and Development

Sulabh Shauchalay Some of the important technology-centred research projects carried out by the Academy are as under: Twin Pit Pour Flush Compost Toilet – (Sulabh Shauchalaya) The Academy is involved in different research and development activities to promote and implement twin pit pour-flush compost toilets (Sulabh Shauchalayas) at different hydro-geological conditions and for effective killing of bacteria and pathogens in the manure, generated from human excreta.

Manure from human excreta

Manure from human excreta Public Toilets Linked with Biogas Plant Public Toilet Complexes constructed and maintained by Sulabh, which have a substantially large number of users everyday, are linked with biogas plants. Academy is engaged in the promotion, design, improvement, liaisoning with different funding agencies, evaluation and monitoring of these community toilets linked biogas plants in India and abroad.

SET ( Biogas plant Effluent Treatment) System for reuse of effluent

Biogas plant effluent contains good percentage of nitrogen, potash, phosphate and other micronutrients for plants. To make biogas plant effluent safe reusable, Academy has developed a simple and convenient technology named as SET (Sulabh Effluent Treatment). The technology is based on sedimentation and filtration of effluent through sand and activated charcoal followed by aeration in tank and finally exposure of ultraviolet rays. The treated effluent is colourless, odourless and pathogen free having BOD less than 1mg/l. It is quite safe for aquaculture, agriculture/ horticulture purposes or discharge in any water body without causing pollution and health risk. It can also be used for floor cleaning of public toilets

Sulabh Thermophilic Aerobic Composting (STAC)

Academy has developed a new technology – Sulabh Thermophilic Aerobic Composter (STAC) that requires only 10 days to make compost from any biodegradable wastes without any manual handling during composting. It is based on thermophilic aerobic method. The technology does not require recurring expenditure. The plant is G.I. sheet made having double wall filled with glass wool, partitioned with perforated sheet into three chambers. After biodegradation, liquid is collected in bottom chamber that can be easily taken out and used for agricultural/horticultural purposes. Manure that contains 30-35% moisture can be directly used for agriculture purposes or it can be dried, granulated and stored till further use. The practical utilities of this technology are:
(i) organic solid waste can be efficiently converted into manure and soil conditioner having direct/indirect economic return,
(ii) it will control diseases transmitted from wastes, as at high temperature pathogens are eliminated from the waste,
(iii) due to reduction in volume, carriage cost of wastes to disposal site as well as area needed for landfills will be drastically reduced, and
(iv) spread of weeds from wastes will also be controlled. The technology is more suited for rural areas as its byproducts (compost) can be readily used for agricultural purposes, and it reduces health hazards

Contact Programmes for Developed Nations

The developed countries like France, USA, Australia do derive benefits from the efforts of Sulabh in sanitation. The Academy provides internship programmes to national and international students in water, sanitation, health and hygiene sector, as an integral part of their curriculum towards practical dimension. The students are oriented on sanitation technologies, bio-energy and waste water treatment systems developed by Academy as well as its other initiatives including women empowerment through interactive sessions, on-site demonstration and technical visits to different cities/towns in India.