Bio Toilets

Company Profile

Shree Ram Raja Wood Packers (SRRWP) was one of the original TOT Holders from the Defense Research Development Organisation (DRDO) in 2011. The enterprise has since been taken over by the current Management wef 1st April, 2016 which includes professionals who were directly involved with the DRDO right from the installation of first bio-digester of India in Lakshadweep. The name of the enterprise also has been changed to Amritasa Bio Technology (ABT) to reflect the core activity it is engaged in. It is in regular discussion with DRDO for technical and management support in R&D, customisation as well as business operations.

In a short span of time, it is fast getting into execution of several orders from various Government Departments as well as Corporates under their CSR efforts. It has also started participating in Government Tenders, albeit at a low level in view of limited pedigree it currently has.

The Management Team have extensive experience in executing orders for the Indian Railways, Government Departments and Corporates and MNCs which it intends leveraging upon. The enterprise has aspirations to be one of the key players in this field and emerge as one of the key associate in the Government of India’s Swachch Bharat Programme.


The Reality Checks:

  • 1/7th of the world’ population do not have access to a toilet
  • 60% of the above sanitation deprived people reside in India
  • Annually 2.4 million Indian children die of diarrhea caused by open defecation
  • Only 11% of the Indian rural families dispose child excretion safely
  • 80% of children’s solid excretion is left in the open or thrown into the garbage
  • Over 75% of our country’s population have access to Mobile Phones but basic Sanitation remains a distant dream!
  • Untreated human waste causes contamination of food, fruits and vegetables, beside causing widespread organic pollution of water bodies as well as diseases such as viral gastroenteritis, typhoid, cholera, jaundice, diarrhea
  • Indian Railways spends INR 350 Crores annually on rectifying rail corrosion caused due to human waste on tracks
  • Government of India spends INR 12 billion on rectifying ailments resulting from improper sanitation


The Problem:

Human waste disposal in innocuous form is an ever growing problem leading to aesthetic nuisance, threat of organic pollution & several infectious diseases in epidemic proportions due to contamination of ground water and drinking water resources in highly populated and developing countries, like India. Less than 30% of Indians have access to the toilets. In rural areas about 10% of houses have toilets and rest of the people go to open defecation. Population in the cities although have better access to the toilets but only to the tune of ~70%. Untreated waste is responsible for several diseases like, dysentery, diarrhoea, amoebiasis, viral hepatitis, cholera, typhoid etc. taking the life of lakhs of children annually.

Our own Defense Research Development Organisation (DRDO) has perfected an eco-friendly bio-degradation technology for human waste disposal for armed forces deployed at high altitude locations and glaciers. The sub-zero temperature does not allow the natural biodegradation of organic matter leading to accumulation of the human waste over the years, contaminating the ice which is the only source of drinking water and poses a great health risk. Further, melted ice contaminates the rivers and other water sources and ultimately spreading the contamination downstream. DRDO developed Bio-digester technology is environmental friendly, maintenance free and efficient without depending on conventional energy sources. The effluent is odorless and gets rid-off most of the pathogens.
Hundreds of such bio-digesters have been installed at various locations in J&K, Sikkim and Arunachal Pradesh. The bio-digester technology has two components: anaerobic microbial consortium and specially designed fermentation tank. The microbial consortium has been made by acclimatization, enrichment and bio augmentation with the cold active bacteria collected from Antarctica and low temperature areas. It is composed of four clusters of bacteria belonging to hydrolytic, acidogenic, acetogenic and methenogenic groups with high efficiency of biodegradation.Fermentation tank is made of metal/ FRP and has the provision of immobilizing the bacteria in large numbers.

Subsequently, the technology has been extended to Indian Railways for on-board treatment of human waste. Hundreds of stainless steel made bio-digesters are in operation in different trains of IR. Under a Memorandum of Understanding (MoU) with Railways, it is planned to install these bio-digesters in all trains in the years to come. Lakshadweep administration had ordered 12000 bio-digesters for all houses of its ten islands. Low cost single house bio-digesters have been designed for rural sector of the country which is long-lasting, require little space, generate environment-friendly safe effluent and does not require any maintenance. Recently developed version of this technology has been named as ‘BioTank’ that is the excellent low cost alternative of the conventional septic tanks being currently used by individual houses and communities.


Solution overview

  • Bio –digesters solve the problem of  human  waste disposal in  an environmentally friendly manner
  • Bio digesters use a Specially developed 4 stage bacteria that act on the waste to convert it in to water and gas(methane)
  • Extracted water can be drained out as a non-hazardous effluent and the methane gas can be used as a fuel.
  • No need of any sewage connection


Product advantage

  • Ecological way of digesting organic solids
  • Prevents contamination of groundwater
  • Alternative to dumping of wastes in rural and semi rural areas that lacks adequate sewage systems
  • By-products such as water can be used to water plants
  • Alleviates the effort involved in relocating composting toilets every year



  • No bad smell in toilets from the tanks
  • Faecal matter in the tank not visible
  • No bugs infestation
  • No clogging of digester
  • Effluent is free from off odor and solid waste
  • Reduction in pathogens by 99%
  • Reduction in organic matter by 90%
  • No maintenance required
  • No requirement of adding bacteria/ enzyme
  • No need of removal of solid waste
  • Hygienic and Non –Polluting
  • No manual scavenging required (sludge free disposal)
  • Relatively low cost
  • Can do with low water requirement
  • Suitable for all terrains
  • Useful by-products: Bio gas (only Methane and water )
  • Alleviates the effort involved in relocating composting toilets every year.



We have the ability to cater to the requirements of the following sectors:

  • Schools, villages
  • Small communities
  • Resorts
  • Construction sites
  • Indian Railways
  • Defense
  • Industrial Factories or Where there are no sewage lines or direct connection to the municipal sewerage systems



Our team of experts have been able to manufacture and supply finest quality range of Bio Toilets. These toilets provide excellent convenience and other basic facilities such as running water, proper lighting, flushing toilet and many more. Given our past industry experience, we have emerged as a notable manufacturer and supplier of portable bio toilets and also composite stationary toilets. These toilets are fabricated using high-grade raw material with the aid of latest techniques and are made in compliance with the current quality standards of the industry. Apart from this, the offered Bio Toilets also guarantee rugged structure and low maintenance.



  • Weather proof
  • Easy to relocate portable bio toilets
  • Compact design
  • Durable structure

Contact Us
Difference between a Septic Tank (Aerobic bio-degradation) & Bio-digesters (Anaerobic Digestion) Courtesy DRDO

Septic Tanks (Aerobic biodegradation) Bio digesters (Anaerobic biodegradation)
 Forced aeration/agitation is essential which is energy   intensive No aeration is required
 Incomplete aeration (partial aerobic condition) leads to foul smell Complete anaerobic conditions
Not effective in pathogen inactivation >99% Pathogens inactivation
Can’t tolerate detergents/phenyl Anaerobes can even degrade detergents/phenyl
 Generates large amount of sludge Sludge generation is very less
Repeated addition of bacteria/enzyme is required for the process One time bacterial inoculation is enough
Maintenance & recurring cost is high Minimal maintenance & no recurring cost
Time taken for operationalization : 1year Time taken for operationalization :1-2months

Company Video

Our Products

FRP Toilet

FRP Modular Toilet

Mobile Toilet with Biodigester

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