For Solihin, a 52-year-old man living in Koja District, North Jakarta, household waste is as precious as diamonds. Through Bank Sampah Majelis Taklim, a monetizeable household waste collection system he established in 2014, he has turned piles of waste into education, medical provision and even an overseas travel scheme for his “customers”. Solihin established his waste bank, believing that as a Muslim preacher, he also had a responsibility to educate locals to better protect the environment. “I started educating people to manage their household waste better. Sometime later, I invited people to send their inorganic household waste to the waste bank that I set up at home,” he told The Jakarta Post in a recent interview. Customers could deliver their household waste to Bank Sampah Majelis Taklim, w...