The plant, operated by Maui County, takes in about four million gallons a day of sewage. On a good day, about a fourth of that is treated to the standard of irrigation water (R-1) and is used to irrigate golf courses and landscapes along the West Maui coast. The rest is shot into four holes, or injection wells.,
The activated sludge process in the treatment of wastewater involves blowing oxygen or air into raw, unsettled sewage. This process smashes the solids. The sewage is bubbled, and sewage liquor is discharged into an activated sludge chamber.May 15, 2018
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment. In some applications, more advanced treatment is required, known as quaternary water treatment.Dec 6, 2018
As sewage enters a plant for treatment, it flows through a screen, which removes large floating objects such as rags and sticks that might clog pipes or damage equipment. After sewage has been screened, it passes into a grit chamber, where cinders, sand, and small stones settle to the bottom.
Cesspools: A Common Onsite Disposal System in Hawai'i Cesspools are generally large, cylindrical excavations used to receive untreated wastewater. Solids are retained in the cesspool and the liquid percolates into the surrounding soil.
The County of Maui uses Class V injection wells as a means of disposing the treated domestic, commercial and industrial wastewater that has been processed at County of Maui sewage treatment plants. The EPA estimates that there are over 1.7 million injection wells throughout the United States.