India has around 5 million biogas units installed, but most of them are in a state of rejection due to the demotivated users. The core reason for farmer demotivation is an absence of incentive (in terms of revenue) from plants, drudgery involved, maintenance issues, and the smell and unhygienic surrounding from the coagulated slurry coming out of the biogas plant. The biogas plants are not utilized to their maximum potential and are in need of a revival.
In 2013, Mr. Dhanaj KM began working on a filter to tackle this issue by developing a filter. After 3 years of rigorous work, the BAIF Slurry Filter (BSF) was finalized, which is one of its kind for recovering solid contents and separating water from slurry in small scale biogas units, without using any external energy, but with Gravity and retention. The BSF directly addresses the two main concerns of biogas plants. One, it opens up the opportunity for additional revenue from Value Addition, and two, it systematically collects and filters slurry, making the surroundings hygienic and provides a solution to the ‘bad smell’.
Scalability and Impact
The BSF has no close alternative as the other closest filters use either mechanical or electrical power for recovering solid contents from the biogas slurry and are more costly. The impact of BSF is huge at both ground level and policy level. It can play a huge role in women empowerment and financial security, as the business model of BSF invokes SHGs. Currently the main aim is to install the BSF in as many as 500,000 units by 2021.
Awards and Recognition
• Received offers for funding by SBI and GIZ.
• MOIL has shown interest to include the BSF under their CRS project.