Trinh Thi Hong wanted to find a solution for all the waste building up in her neighbourhood. Now she ferments it and turns it into affordable cleaning supplies. 

Everyday household activities like showering, washing the dishes, mopping the floor or cleaning the windows may unsuspectingly cause harm. The cleaning agents often used in these chores contain chemicals that may cause harm to people's skin and greater health.
Trinh Thi Hong, 50, from Da Nang City, was inspired to make safe cleaning products by a lifetime spent with some of Viet Nam's poorest and most disadvantaged people.
At just one-month-old, Hong was orphaned. She, along with her siblings, were raised by her 17-year-old sister. She spent most of her difficult childhood travelling, getting to know her countrymen and the hardness of daily life in poverty-stricken communities.
Her upbringing led her to devote her life to improving the lives of the poor. As vice president of the Da Nang Association of Charity and Children Right Protection, she raises money to support local people in need.
For Hong, a truly better life requires a better environment.
"Environmental pollution is more and more serious. On average, a household creates 2kg of waste per day, 70 per cent of which is organic waste," she said. "If this waste is not treated quickly, it becomes a breeding ground for flies and other insects that are then harmful to people's health."
Searching for a way forward, she thought that maybe she could turn this waste into profit, which would both raise incomes and reduce harmfulness. So when she heard about a process by which waste could be turned into cleaning products at an Asian community development conference in the Philippines in 2012, she got to work.
"I had to examine the water, climate and quantity of waste to form my own recipe, which contains 3kg of organic wastes such as vegetables, fruits' peels, sugar cane refuse, leaves; 300 grams of sugar; and 10 litres of water," Hong said.
Then, she said, "the waste is washed and cut into pieces of three to five centimetres. The materials are soaked in a sealed bucket. After 30 days, the mixture is filtered before becoming an usable products."
Source: vietnamnet.vn