The Model of Group Lending has been flourishing in the Microfinance Industry. This model has been used widely to serve the needy and un-bankable group of people by lending money plus interest addition. Islamic finance also embraces this model by omitting the interest and applying the Qardul Hassan to finance the members' daily needs. This divine scheme's problem is the microfinance's sustainability since they have a burden to bear the operational cost due to the non – interest feature of the financing. This paper tries to solve this problem by utilizing the household garbage as the media to repay the Qardul Hassan financing to the Islamic Microfinance Institution (IMFI). This would enable to create more added value product, selling it to get more income and achieving the organization sustainability.