Continuous-, linear-, flexible-channel sewage treatment process, through a modified aerobic biological reactor system, or transformation of an existing anaerobic biological reactor into a modified aerobic biological reactor, coupled with a modified flexible flotation/decanting system

Sewage treatment process, coupled with a modified flexible flotation/decanting system, for the treatment of sewage, in that it is carried out at a treatment station, in a continuous, linear, and flexible channel, using the following stages:

• PHASE 1—preliminary treatment of the sewage, with the installation of a garbage-trap grid, followed by a sandbox in the channel, wherein the garbage-trap grid traps floating and submerged solid waste, and the sandbox traps the-sand and silt contained in sewage flow, and the sewage flows through the continuous, linear, and flexible channel, to a PHASE 2 of the treatment, which constitutes the primary treatment;
• PHASE 2—Primary treatment of sewage, wherein the sewage from Phase 1 receives primary treatment inside a pond converted into a modified aerobic reactor;
• wherein the conversion is done by installing aerators at a bottom of said pond, and installing impermeable walls within said pond to form of channels within said pond, to direct the sewage flow from an inlet of the pond converted into a modified MBBR aerobic reactor to its outlet;
• at passageways formed by said channels, respective cage-shaped traps are arranged, which accommodate and trap biomedia, and the biomedia is stirred within the cage-shaped traps, driven by aerators arranged at the bottom of said pond converted into modified MBBR aerobic reactors;
• said primary treatment comprises oxygen-enriched aeration, which stirs the biomedia inside the modified MBBR aerobic reactor, and, after primary treatment, the sewage from this PHASE 2, is directed to PHASE 3, wherein it is provided secondary treatment;
• and
• PHASE 3—Secondary treatment of the sewage from PHASE 2, wherein the sewage, after leaving PHASE 2, is routed to secondary treatment by the modified, flexible decanting/flotation system, whereby the sewage need not pass through an equalization tank, and a routing modification is carried out within the continuous, linear, and flexible channel by installation of a longitudinal septum arranged in a centralized or decentralized manner in relation to the continuous, linear, and flexible channel, equipped with individual inlet gates;
• the longitudinal septum being arranged along an inside area of said continuous, linear, and flexible channel, to split the continuous, linear, and flexible channel into at least two parallel linear sub-channels, allowing individual operation of each sub-channel, independently from each other;
• the secondary treatment by the flexible, modified decanting/flotation system being carried out with a coagulation stage and a flocculation stage, using a mixture of coagulant and flocculant, followed by flotation or decanting, removal of floated sludge or decanted sludge, and passage of treated sewage;
• the treated sewage flowing to a receiving water body.

Sewage treatment process, coupled with a modified flexible flotation/decanting system, for the treatment of sewage, in that it is carried out at a treatment station, in a continuous, linear, and flexible channel, using the following stages:

• PHASE 1—preliminary treatment of the sewage, with the installation of a garbage-trap grid, followed by a sandbox in the channel, where the garbage-trap grid traps floating and submerged solid waste, and the sandbox traps sand and silt contained in sewage flow, and the sewage flows through the continuous, linear, and flexible channel, to a PHASE 2 of the treatment, which constitutes the primary treatment;
• PHASE—Primary treatment of sewage, wherein the sewage from Phase 1 receives primary treatment inside an UASB anaerobic reactor converted into a modified MBBR aerobic reactor;
• the conversion is made by removing the entire contents from inside an UASB anaerobic reactor, by installing aerators at a bottom of a common UASB anaerobic reactor, by installing impermeable walls inside said regular UASB anaerobic reactor, to form channels, in order to drive the sewage flow from an inlet of the UASB anaerobic reactor converted into a modified MBBR aerobic reactor to an outlet, and at passageways formed by said inside channels, respective cage-shaped traps are arranged, which accommodate and trap biomedia, and the biomedia move inside the cages-shaped traps, driven by the aerators installed at the bottom of said UASB anaerobic reactor converted into a modified MBBR aerobic reactor;
• said primary treatment comprises oxygen-enriched aeration, which stirs the biomedia inside the modified MBBR aerobic reactor, and, after primary treatment, the sewage from this PHASE 2 is driven to PHASE 3, wherein it is provided secondary treatment;
• and
• PHASE 3—Secondary treatment of the sewage from PHASE 2, wherein the sewage, after leaving PHASE 2, is routed to secondary treatment by the modified, flexible decanting/flotation system, whereby the sewage need not pass through an equalization tank, and such modification is carried out within the continuous, linear, and flexible channel by the installation of a longitudinal septum arranged in a centralized or decentralized manner in relation to the continuous, linear, and flexible channel, equipped with individual inlet gates;
• the longitudinal septum being arranged along an inside area of said continuous, linear, and flexible channel, to split the main continuous, linear, and flexible channel into at least two parallel linear sub-channels, allowing individual operation of each sub-channel, independently from each other;
• the secondary treatment by the flexible, modified decanting/flotation system being carried out with a coagulation stage and a flocculation stage, using a mixture of coagulant and flocculant, followed by flotation or decanting, removal of floated sludge or decanted sludge, and the passage of treated sewage;
• the treated sewage flowing to a receiving water body.