| 摘要 |
A low cost method and apparatus for maintaining and rejuvenating a septic system in which an activated gaseous fluid formed by irradiating an oxygen containing gas, such as ambient air, with radiation having a wave-length below 200 nanometers produced by a low powered ultra-violet lamp is brought into intimate contact with liquid in the effluent chamber of a septic tank to effect a substantial reduction in the concentration of suspended solids, volatile solids and fecal coliform in the liquid and when the activated fluid is brought into intimate contact with a drainage field of a septic system clogged with water-insoluble sulfides, and polysaccharide gums and anaerobic organisms of the deposits which have clogged the drainage field are removed. The effluent from a septic tank treated with activated fluid after filtering through a sand filter and subjected to a second treatment with the activated fluid produces a discharge of surface quality water. |
