The state’s annual Household Hazardous Waste Collection returns to Greene County on Sept. 10. The event provides Tennessee residents a free and safe way of disposing of household hazardous waste, according to Keep Greene Beautiful Director Jennifer Wilder.The collection will be held 9 a.m.-1 p.m. on Sept. 10 in the parking lot of Hal Henard Elementary School, 425 E. Vann Road.