NG-SEPCLEAN (Next Generation Septic Tank)

Target SDGs

Target Users (Target Impact Group)

Household, Community, Small and Medium-sized Enterprises, Public Sector Agencies

Distributors / Implementing Organizations

Emergy Enviro Pvt. Ltd, a SINE-IIT Bombay company

Competitive Landscape

Direct competitors include Johkasou, Decentralized Wastewater Treatment Systems (DEWATS), and The Biofil Digester.

Countries

India

Manufacturing/Building Method

Unknown

Intellectural Property Type

Trademark

User Provision Model

This product can be acquired by contacting Emergy Enviro Pvt. Ltd.

Distributions to Date Status

As of 2020, the NG-SEPCLEAN is implemented at 8 sites across India.

Design Specifications

The NG-SEPCLEAN requires less land space compared to traditional septic tanks. The principle components and functions include:

1. Inlet: Wastewater enters the system
2. Primary treatment: sedimentation and flocculation in the Settler Unit
3. Secondary treatment: aerobic and anaerobic treatment in the Digester Unit
4. Tertiary treatment: disinfection and filtration through the Filtration and Disinfection unit

The system flow rate is dependant on the size and site specifications.

Product Schematics

Technical Support

Provided by the manufacturer.

Replacement Components

Unknown

Lifecycle

30-40 years

Manufacturer Specified Performance Parameters

The manufacturer specifies the following as performance targets:

• Improved performance compared to traditional septic tanks by 30-35%
• Retention time of 24 hours
• Low space requirements
• Solid removal efficiency (~85%)
• Organic removal efficiency (~85%)
• No operation costs
• No odour
• Lower frequency for cleaning and maintenance

Vetted Performance Status

The average removal efficiencies of the Decentralised Wastewater Treatment System (DEWATS) in Nepal is 96% TSS, 90% BOD₅, 90% COD, 70% NH₄–N, 26% TP and 98% FC.

Safety

Wastewater must be handled, treated and disposed of in accordance with hygiene and environmental standards.

Complementary Technical Systems

The effluent from these digesters can be further treated through Phytorid technology as a polishing step and then dispose into the river.

Academic Research and References

Compliance with regulations

Design and construction in compliance with IS 2470-2 (1985): Code of practice for installation of septic tanks, Part II: Secondary treatment and disposal of septic tank effluent.

Evaluation methods

The manufacturer cites solid and organic removal efficiency and 75-90% TSS removal evaluation criteria.

Other Information

• Enlisted in the Ministry of Drinking Water and Sanitation innovative products list.
• NG-SEPCLEAN Design Specifications.

 IS 2470-2 (1985)