초록 ▼

A self-contained sewage treatment system and method includes a first waterless treating tank operable to separate feculent solids from raw sewage influent in a suspended bio-mass for effective aerobic bacterial digestion in this tank with the outlet of the waterless tank connected to the inlet of a

A self-contained sewage treatment system and method includes a first waterless treating tank operable to separate feculent solids from raw sewage influent in a suspended bio-mass for effective aerobic bacterial digestion in this tank with the outlet of the waterless tank connected to the inlet of a septic tank where sedimentation of the smaller entrained organic particles in the liquor leaving the waterless tank can occur and undergo anaerobic bacterial digestion. The system can include pipe means for distributing the clear liquor from the septic tank in a leach field where it can be disposed of in a safe, pollution-free and environmentally acceptable manner without deleterious effects. Because the method of treatment effectively removes all of the organic solids from the raw sewage influent by using aerobic digestion followed by anaerobic digestion in sequential steps, the clear liquor leaving the septic tank will be environmentally safe and free of all entrained organic matter.

대표청구항 ▼

A unitized raw sewage treatment system comprising: a first waterless tank means having suspended therein a perforated basket means, said tank means having an inlet operable to deposit effluents entering said waterless tank into said perforated basket means and drain means located at the bottom of sa

A unitized raw sewage treatment system comprising: a first waterless tank means having suspended therein a perforated basket means, said tank means having an inlet operable to deposit effluents entering said waterless tank into said perforated basket means and drain means located at the bottom of said waterless tank operable to flow liquids to its outlet means; a septic tank means having an inlet, an outlet and at least one chamber therein operable to allow particular matter in effluents received in said septic said to settle to the bottom thereof; and pipe means connecting said outlet of said waterless tank means with said inlet of said septic means whereby solid and semi-solid particulate wastes in raw sewage effluents entering said waterless tank means will be trapped in said basket means where said wastes will undergo aerobic digestion and liquid effluents egressing from said waterless tank will enter said septic tank means where particulate wastes will therein undergo anaerobic digestion after when settling to the bottom of said septic tank means. A method of treating raw sewage effluents containing solid and semi-solid wastes comprising the steps of: flowing said effluents into a perforated basket means operable to separate the wastes from the liquids in the effluent; providing air circulation about said perforated basket means to cause said wastes to undergo aerobic digestion; collecting all liquids and small particles of the wastes beneath said basket means, including liquids released by the aerobic digestion action; placing all the resulting collected matter in a septic system having a settling chamber where organic material in such matter will undergo further anaerobic digestion; and disposing of the resulting liquids from the septic system in a leach field or the like.