Used cooking oil: identification, recovery and recycling solution to transform into "green fuel" in Vietnam

Impact on equipment, drainage system

Although it may look like liquid going down the drain when pouring used cooking oil directly into the sink or drain. When they are cool, they solidify, form plaque and accumulate, causing pipe blockage, affecting the drainage system and cause pipe cleaning to become expensive and unsanitary. In the United States, about 47% of sanitary sewer overflows are caused by accumulated fats and oils each year.

Impact on the environment

Water sources pollution: When used cooking oil is dumped into the water, it floats to the surface and causes oil-contaminated water. They then disrupt the gas exchange process and kill organisms, animals, and plants living in and on the water's surface, affecting the water supply for daily use.

Soil pollution: cooking oil seeps into the soil and leaks into groundwater, allowing harmful microorganisms to grow, causing odors and soil pollution.