초록 ▼

An on-location sewage treatment apparatus comprises a tank and a cylindrical wall therein arranged to form therewith a plurality of series-connected pre-treatment compartments. A grinder receives and grinds sewage-containing liquid and introduces same in the form of a colloidal mixture into a first

An on-location sewage treatment apparatus comprises a tank and a cylindrical wall therein arranged to form therewith a plurality of series-connected pre-treatment compartments. A grinder receives and grinds sewage-containing liquid and introduces same in the form of a colloidal mixture into a first of the pre-treatment compartments. The colloidal mixture gravitates between the pre-treatment compartments, the waste matter being aerobically consumed by bacteria therein. A second cylindrical wall spaced inwardly of the first endless wall forms therewith an intensive treatment compartment which receives pre-treated liquid. An upright porous sheet in the intensive treatment compartment is arranged in a circular accordian-pleated configuration. The sheet supports a bacteria culture thereon which consumes waste matter in the mixture passing through the sheet. Pure oxygen gas is introduced into each of the compartments and includes a sound wave generator for dispersing the oxygen gas. A third cylindrical porous wall disposed within the second wall defines a disinfecting compartment. Ozone gas is introduced into the disinfecting compartment to disinfect the liquid. Pure oxygen formed as a reaction product in the disinfecting compartment is collected and conducted back to the previous compartments.

대표청구항 ▼

In a waste treatment apparatus of the type comprising tank means, means for delivering waste liquid to said tank means, nozzles submerged in said tank means, means for delivering oxygen-containing gas to said nozzles, which gas is converted by said nozzles into minute oxygen-containing bubbles which

In a waste treatment apparatus of the type comprising tank means, means for delivering waste liquid to said tank means, nozzles submerged in said tank means, means for delivering oxygen-containing gas to said nozzles, which gas is converted by said nozzles into minute oxygen-containing bubbles which permeate the liquid and support the aerobic digestive action of bacteria in the liquid, and means for delivering ozone gas to the treated liquid to disinfect same for delivery to an outlet, the improvement wherein: said tank means comprises: aerobic pre-treatment compartment means including at least one aerobic pre-treatment compartment having an inlet communicating with said liquid delivering means for receiving waste liquid, and including an outlet for pre-treated waste liquid, some of said nozzles being submerged in said pre-treatment compartment means to saturate the latter with minute oxygen-containing bubbles to support aerobic digestive action of bacteria, an intensive aerobic treatment compartment connected with said outlet of said pre-treatment compartment means to receive pre-treated waste liquid, said intensive treatment compartment including on outer wall and containing therein an upright porous member forming a closed loop which is spaced inwardly from said outer wall, said porous member supporting the growth of bacteria thereon for consuming waste matter, said porous member being disposed across the path of travel of the pre-treated liquid, and having its lower end sealed against the passage of liquid therebeneath, so that all of the pre-treated liquid is required to pass through the porous member, some of said nozzles being disposed in said intensive treatment compartment between said wall and said porous member to saturate said intensive treatment compartment with minute oxygen-containing bubbles, said last-named nozzles having their outlets oriented for establishing a circular flow of liquid in one direction around said porous member, a disinfecting compartment communicating by gravity flow with liquid that has passed through said porous member, nozzle means submerged in said disinfecting compartment and communicating with a source of ozone gas for saturating the liquid in said disinfecting compartment with ozone gas bubbles to disinfect the liquid.