100 TPD Integrated Solid Waste Management Facility at Cacora, South Goa

Summary

Goa's second Integrated Waste Treatment Facility, located in Kakura, South Goa, processes 100 tons of waste daily, addressing the needs of local bodies. Supported by NABARD's Rural Infrastructure Development Fund, the project remediated a former waste dump site and now handles both wet and dry waste through advanced segregation and biogas generation. The facility produces electricity, compost, and RDF, contributing to the local energy grid. Equipped with modern safety and monitoring systems, it is a sustainable initiative promoting clean energy and environmental responsibility, aligning with the goal of a 'clean and green Goa.'

Takeaways

• ♻️ Goa's second Integrated Waste Treatment Facility in Kakura, South Goa, was established by GWMC and Wasselda Waste Treatment Pvt. Ltd. with a capacity of 100 tons per day.
• 🏦 Financial assistance for the project was provided by NABARD under the Rural Infrastructure Development Fund (RIDF), which started in 1995-96.
• 🌿 The facility supports sustainable rural development through Solid Waste Management, which has become a priority under RIDF.
• 🚛 Around 25,000 cubic meters of previously dumped waste was remediated in 2019 to clear the land for the waste treatment facility.
• 🏘️ The Kakura facility processes waste from 30 local bodies, including 4 municipal councils, following an integrated treatment process for wet and dry waste.
• ⚖️ Waste is separated into heavy, medium, and light fractions, with recyclable materials weighed, sorted, and sent to recyclers, while light fractions are used as RDF (Refuse-Derived Fuel).
• 💡 The facility generates electricity through biogas engines (800 kW capacity), with excess biogas flared off. The electricity powers the plant, with surplus energy sent to the grid.
• 🌱 Wet waste is processed into compost after undergoing various treatments, including thermophilic digestion and solar drying.
• 🚮 Residual waste, less than 10% of the total waste, is scientifically disposed of in a lined landfill designed to prevent contamination.
• 🏭 The facility is fully automated with a PLC SCADA system, monitored by cameras, and includes safety features like firefighting systems and biofilters to control odors.

Q & A

What is the capacity of the Integrated Waste Treatment Facility in Kakura, South Goa?

The facility has a capacity of 100 tons per day.

Which organization provided financial assistance for the waste treatment facility?

The financial assistance was provided by NABARD (National Bank for Agriculture and Rural Development).

What was the primary goal of the Rural Infrastructure Development Fund (RIDF) when it started?

The RIDF was initially aimed at providing loans to state governments for completing incomplete projects related to irrigation, flood protection, and watershed management.

What transformation has occurred in the scope of RIDF over the years?

The scope of RIDF has expanded to include activities such as Solid Waste Management, which are essential for holistic rural development.

What was the state of the land before the Kakura Solid Waste Management Facility was set up?

The land had been used for dumping waste collected by neighboring local bodies, and about 25,000 cubic meters of dumped waste was remediated and disposed of scientifically in 2019.

How many local bodies will the Kakura facility serve, and which areas are included?

The facility will serve around 30 local bodies, including 4 municipal councils.

How is the waste processed at the Kakura facility?

Waste is brought by panchayats, weighed at a station, and unloaded into an infeed bunker. It is then sorted into heavy, medium, and light fractions, with recyclable materials separated, weighed, and stored for recycling.

What happens to the wet waste at the facility?

Wet waste is homogenized by screw conveyors, processed in an organic extrusion press, and sent to a thermophilic digester, where it ferments to generate biogas.

How is biogas used at the facility?

The biogas generated is scrubbed of H2S and used to power 800-kilowatt engines, with excess biogas being flared off. The generated electricity runs the processing facility, with any surplus exported to the grid.

How is the solid waste managed after the digestion process?

The digested sludge is dewatered using a screw press and centrifuge, dried in solar drying sheds, and converted into granulated compost.

How is environmental safety ensured at the facility?

Effluent from the facility is treated in an Effluent Treatment Plant (ETP), air quality is maintained using filters and cooling systems, and the plant is equipped with firefighting systems. The facility is monitored via cameras and a PLC SCADA system.

What are the main outputs of the Kakura Solid Waste Management Facility?

The main outputs include electricity, compost, recyclables, and Refuse-Derived Fuel (RDF).