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WO2025175366A1 - System and method for continuous flow treatment of sewage/effluent - Google Patents

System and method for continuous flow treatment of sewage/effluent

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Publication number
WO2025175366A1
WO2025175366A1 PCT/BR2025/050059 BR2025050059W WO2025175366A1 WO 2025175366 A1 WO2025175366 A1 WO 2025175366A1 BR 2025050059 W BR2025050059 W BR 2025050059W WO 2025175366 A1 WO2025175366 A1 WO 2025175366A1
Authority
WO
WIPO (PCT)
Prior art keywords
effluent
tank
sewage
receives
ultra
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/BR2025/050059
Other languages
French (fr)
Portuguese (pt)
Inventor
Mario Sergio SARTORI
Leandro Verdi SARTORI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BR102024003335-3A external-priority patent/BR102024003335B1/en
Application filed by Individual filed Critical Individual
Publication of WO2025175366A1 publication Critical patent/WO2025175366A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

Definitions

  • This invention patent describes a continuous-flow sewage/effluent treatment system and method with a hermetic and compact ultra-oxidation tower.
  • the ultra-oxidation process is carried out by injecting high-concentration ozone directly into the raw sewage/effluent within the oxidation tower, combined with an advanced micro-filtration process for the treatment and proper disposal of sewage/effluent and/or the production of reused water, complying with current standards and legislation.
  • Activated Sludge Sewage Treatment Plant uses microorganisms to biodegrade pollutants present in sewage. Includes aeration tanks and sedimentation tanks.
  • Anaerobic Reactor Sewage Treatment Plant uses anaerobic bacteria to decompose organic matter.
  • Ultrafiltration Sewage Treatment Plant uses membranes to retain particles and microorganisms.
  • Petition 870240014102 dated February 20, 2024, page 10/22 [018]
  • the invention describes a continuous flow, low volume retention effluent treatment system, significantly reducing the effluent treatment time and the physical space required for its implementation.
  • the invention describes a wastewater treatment system that combines ultra-oxidation by high ozone concentration and microfiltration, in a continuous flow treatment process. Ozone generation is carried out in the plant itself and oxidation occurs in a hermetic and compact tower exclusively designed for the effectiveness of the treatment process.
  • the invention describes an effluent treatment system with low complexity maintenance.
  • the invention describes an effluent treatment system equipped with a hermetic ultra-oxidation tower that does not emit odors and can be installed inside the buildings themselves.
  • Figure 2 shows a schematic drawing of the hermetic ultra oxidation tower.
  • Figure 3 shows the simplified flowchart of the effluent treatment method and production of reused water.
  • the continuous flow sewage/effluent treatment system comprises an air compressor for capturing atmospheric air (1), compressed air tanks (2), compressed air dryers (3), high-efficiency oxygen concentrators (4) (subject of patent BR1 02024003331-0), large, high-efficiency ozone generator (5) (subject of patent BR102024003332-9), raw effluent capture box and screening (6), flow regulation box (7), hermetic and compact ultra-oxidation tower (8), polymer tank (9), flotation tank (10), settling tank (11),
  • Petition 870240014102 dated February 20, 2024, page 12/22 sludge tank (12), centrifugal filter set (13), microfiltration tank (14), treated effluent tank for reuse water (15).
  • the raw effluent from the building is dumped into the collection and grating box (6), where the coarse solid waste is retained and, subsequently, the raw effluent is directed to the flow regulation box (7).
  • the effluent is directed to a settling tank (11) equipped with an extractor pump to remove the settled sludge, which is sent to the sludge tank (12).
  • Petition 870240014102 dated February 20, 2024, page 13/22 [040]
  • the effluent being treated goes to a set of centrifugal filters (13) and, after this stage, to a membrane microfiltration unit (14) for final filtration.
  • the treated effluent is directed to the reuse water storage tank (15).
  • the reused water is stored, receiving dye, with the aim of distinguishing it from drinking water, and a specific chlorine load, in accordance with legislation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a system and method for continuous flow treatment of sewage/effluent using a compact, hermetic advanced oxidation tower, wherein the advanced oxidation process occurs by injecting high concentrations of ozone directly into the raw sewage/effluent inside the advanced oxidation tower (8), in combination with an advanced microfiltration process for the treatment and proper discharge of sewage/effluent and/or production of reusable water, complying with current standards and legislation.

Description

SISTEMA E MÉTODO DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUOCONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM AND METHOD

CAMPO DA INVENÇÃO FIELD OF INVENTION

[001] A presente patente de invenção descreve um sistema e método de tratamento de esgoto/efluentes de fluxo contínuo com torre de ultra oxidação hermética e compacta. O processo de ultra oxidação se dá através da injeção de ozônio em alta concentração diretamente no esgoto/efluente bruto dentro da torre de oxidação, combinado a um processo avançado de micro filtragem para tratamento e descarte adequado de esgoto/efluentes e/ou produção de água de reuso, atendendo as normas e legislação vigentes. [001] This invention patent describes a continuous-flow sewage/effluent treatment system and method with a hermetic and compact ultra-oxidation tower. The ultra-oxidation process is carried out by injecting high-concentration ozone directly into the raw sewage/effluent within the oxidation tower, combined with an advanced micro-filtration process for the treatment and proper disposal of sewage/effluent and/or the production of reused water, complying with current standards and legislation.

ANTECEDENTES DA INVENÇÃO BACKGROUND OF THE INVENTION

[002] O processo de tratamento de efluentes consiste na remoção de impurezas das águas residuais, ou esgoto, antes que alcancem aquíferos ou corpos d’água naturais. O tratamento de esgoto com produção de água de reuso não só reduz gastos no local, mas também contribui para a diminuição da poluição e o uso mais consciente da água potável para outras finalidades. [002] The effluent treatment process consists of removing impurities from wastewater, or sewage, before it reaches aquifers or natural bodies of water. Sewage treatment with the production of reused water not only reduces on-site costs but also contributes to reducing pollution and the more conscious use of drinking water for other purposes.

[003] Para o tratamento dos efluentes, as estações de tratamento basicamente apresentam quatro fases: (a) tratamentos preliminares, com objetivo de remover resíduos grosseiros capazes de causar problemas para as instalações e sistemas posteriores, (b) tratamentos primários que visam remover outros sólidos suspensos presentes no efluente a ser tratado, (c) tratamentos secundários e (d) tratamentos terciários. [003] For the treatment of effluents, treatment plants basically have four phases: (a) preliminary treatments, with the aim of removing coarse residues capable of causing problems for subsequent installations and systems, (b) primary treatments that aim to remove other suspended solids present in the effluent to be treated, (c) secondary treatments and (d) tertiary treatments.

[004] A depender do tipo de efluente, são previstas: [004] Depending on the type of effluent, the following are expected:

[005] Estação de Tratamento de Esgoto convencional, que trata os esgotos por meio de processos físicos, químicos e biológicos. Inclui gradeamento, desarenação, sedimentação, aeração e decantação. [005] Conventional sewage treatment plant, which treats sewage through physical, chemical and biological processes. Includes screening, desanding, sedimentation, aeration and decantation.

Petição 870240014102, de 20/02/2024, pág. 8/22 [006] Estação de Tratamento de Esgoto por Lodos Ativados: utiliza microrganismos para biodegradar os poluentes presentes nos esgotos. Inclui tanques de aeração e tanques de sedimentação. Petition 870240014102, dated February 20, 2024, page 8/22 [006] Activated Sludge Sewage Treatment Plant: uses microorganisms to biodegrade pollutants present in sewage. Includes aeration tanks and sedimentation tanks.

[007] Estação de Tratamento de Esgoto por Reatores Anaeróbios: utiliza bactérias anaeróbias para decompor a matéria orgânica. [007] Anaerobic Reactor Sewage Treatment Plant: uses anaerobic bacteria to decompose organic matter.

[008] Estação de Tratamento de Esgoto por Leitos de Macrófitas: utiliza plantas aquáticas para remover contaminantes. [008] Sewage Treatment Plant by Macrophyte Beds: uses aquatic plants to remove contaminants.

[009] Estação de Tratamento de Efluentes Industriais: projetada para tratar efluentes provenientes de processos industriais, pode exigir tratamentos específicos, dependendo dos tipos de poluentes presentes. [009] Industrial Effluent Treatment Plant: designed to treat effluents from industrial processes, may require specific treatments, depending on the types of pollutants present.

[010] Estação de Tratamento de Esgoto por Membranas: Utiliza membranas para separar sólidos e microrganismos do efluente. [010] Membrane Sewage Treatment Plant: Uses membranes to separate solids and microorganisms from the effluent.

[011] Estação de Tratamento de Esgoto por Processos Físico- Químicos: utiliza métodos como coagulação, flotação e filtração para remover impurezas. [011] Sewage Treatment Plant by Physical-Chemical Processes: uses methods such as coagulation, flotation and filtration to remove impurities.

[012] Estação de Tratamento de Efluentes por Osmose Reversa: usa membranas semipermeáveis para remover contaminantes. Principalmente aplicada em efluentes industriais. [012] Reverse Osmosis Effluent Treatment Plant: uses semipermeable membranes to remove contaminants. Mainly applied in industrial effluents.

[013] Estação de Tratamento de Esgoto por Ultrafiltração: usa membranas para reter partículas e microrganismos. [013] Ultrafiltration Sewage Treatment Plant: uses membranes to retain particles and microorganisms.

[014] No entanto, as estações de tratamento de efluentes do estado da técnica necessitam de uma estrutura complexa e ampla para acumulação de grandes volumes do efluente a ser tratado, o que gera a emissão de odores. Ainda, o tempo do processo é elevado, com grande consumo de energia e necessidade de mão-de-obra intensiva, geralmente com controles manuais. O lodo gerado e armazenado, resíduo inerente dos processos convencionais, geralmente é em volume superior a carga orgânica a ser tratada. Este resíduo requer [014] However, state-of-the-art wastewater treatment plants require a complex and extensive structure to accumulate large volumes of effluent to be treated, which generates odors. Furthermore, the process takes a long time, with high energy consumption and intensive labor requirements, usually with manual controls. The sludge generated and stored, an inherent residue of conventional processes, generally exceeds the organic load to be treated. This residue requires

Petição 870240014102, de 20/02/2024, pág. 9/22 intenso controle e um processo de neutralização da carga orgânica para ser descartado adequadamente, incorrendo em custos de destinação, exigência de rastreamento e monitoramento da destinação final dos resíduos. Ainda, os sistemas convencionais para produzir água de reuso a partir do efluente tratado apresentam baixa eficácia. Petition 870240014102, dated February 20, 2024, page 9/22 Intense control and a process of neutralizing the organic load are required for proper disposal, incurring disposal costs and requiring tracking and monitoring of the final disposal of the waste. Furthermore, conventional systems for producing reused water from treated effluent are ineffective.

[015] Desta forma, a presente patente trata de um sistema e método de tratamento de esgoto/efluentes que realiza o tratamento através da aplicação de uma alta concentração de ozônio diretamente sobre o efluente bruto. O ozônio é o único produto químico oxidante no tratamento e tem a função principal e não coadjuvante como nos sistemas tradicionais. [015] Thus, the present patent deals with a sewage/effluent treatment system and method that performs treatment by applying a high concentration of ozone directly to the raw effluent. Ozone is the only oxidizing chemical in the treatment and has the main function and not a supporting one as in traditional systems.

[016] Este processo ocorre dentro de uma torre de oxidação, hermética, compacta e resistente ao ataque do ozônio. Os sistemas convencionais de mercado não aplicam ozônio em tanques herméticos. A torre de oxidação foi projetada para maximizar o contato do ozônio com o efluente, garantindo a redução abrupta da carga orgânica e sua desinfecção. Também não necessita de tempo de acumulação, a torre foi projetada para promover a ação oxidante do ozônio em uma única passagem, não sendo necessárias acumulações em nenhuma parte do processo, que se caracteriza por fluxo contínuo. [016] This process takes place inside a hermetic, compact oxidation tower that is resistant to ozone attack. Conventional market systems do not apply ozone to hermetic tanks. The oxidation tower was designed to maximize ozone contact with the effluent, ensuring a rapid reduction in organic load and disinfection. It also requires no accumulation time; the tower was designed to promote the oxidizing action of ozone in a single pass, eliminating the need for accumulation at any point in the process, which is characterized by continuous flow.

[017] O processo tem sequência pela passagem do efluente pelas caixas de flotação, decantação, filtragem e micro filtragem até a reservação final do efluente tratado para sua destinação apropriada ou da água de reuso produzida. Conforme a necessidade de redução da carga orgânica e desinfecção, tanques de contato intermediários podem ser inseridos. Em todas as etapas, o fluxo do efluente em tratamento é contínuo. [017] The process continues with the passage of effluent through flotation, decantation, filtration, and microfiltration tanks until the final storage of the treated effluent for its appropriate disposal or the reuse water produced. Depending on the need for reducing the organic load and disinfection, intermediate contact tanks can be installed. At all stages, the flow of effluent being treated is continuous.

SUMÁRIO SUMMARY

Petição 870240014102, de 20/02/2024, pág. 10/22 [018] A invenção descreve um sistema de tratamento de efluentes de fluxo contínuo e baixa retenção de volumes, reduzindo sensivelmente o tempo de tratamento do efluente e do espaço físico necessário para sua implantação. Petition 870240014102, dated February 20, 2024, page 10/22 [018] The invention describes a continuous flow, low volume retention effluent treatment system, significantly reducing the effluent treatment time and the physical space required for its implementation.

[019] A invenção descreve um sistema de tratamento de efluentes que combina ultra oxidação por alta concentração de ozônio e microfiltração, em um processo de tratamento de fluxo contínuo. A geração de ozônio é feita na própria estação e a oxidação ocorre em uma torre hermética e compacta exclusivamente projetada para a eficácia do processo de tratamento. [019] The invention describes a wastewater treatment system that combines ultra-oxidation by high ozone concentration and microfiltration, in a continuous flow treatment process. Ozone generation is carried out in the plant itself and oxidation occurs in a hermetic and compact tower exclusively designed for the effectiveness of the treatment process.

[020] A invenção descreve um sistema de tratamento de efluentes que atende às normas de qualidade para tratamento de esgoto e produção de água de reuso. [020] The invention describes an effluent treatment system that meets quality standards for sewage treatment and production of reused water.

[021] A invenção descreve um sistema de tratamento de efluentes com baixo custo operacional, tanto em termos de mão-de-obra, produtos químicos e energia elétrica. [021] The invention describes an effluent treatment system with low operating costs, both in terms of labor, chemicals and electrical energy.

[022] A invenção descreve um sistema de tratamento de efluentes que gera lodo inorgânico com residual proporcional a carga orgânica do efluente tratado, muito inferior as estações convencionais. [022] The invention describes an effluent treatment system that generates inorganic sludge with a residual proportional to the organic load of the treated effluent, much lower than conventional plants.

[023] A invenção descreve um sistema de tratamento de efluentes totalmente automatizado e com monitoramento remoto. [023] The invention describes a fully automated effluent treatment system with remote monitoring.

[024] A invenção descreve um sistema de tratamento de efluentes com manutenção de baixa complexidade. [024] The invention describes an effluent treatment system with low complexity maintenance.

[025] A invenção descreve um sistema de tratamento de efluentes que não reserva grandes quantidades de efluentes brutos ou tratados dado seu processo de tratamento contínuo e rápido. [025] The invention describes an effluent treatment system that does not reserve large quantities of raw or treated effluents given its continuous and rapid treatment process.

[026] A invenção descreve um sistema de tratamento de efluentes dotado de torre de ultra oxidação hermética que não emite odores, podendo ser instalada dentro das próprias edificações. [026] The invention describes an effluent treatment system equipped with a hermetic ultra-oxidation tower that does not emit odors and can be installed inside the buildings themselves.

Petição 870240014102, de 20/02/2024, pág. 11/22 BREVE DESCRIÇÃO DAS FIGURAS Petition 870240014102, dated February 20, 2024, page 11/22 BRIEF DESCRIPTION OF THE FIGURES

[027] Para complementar a presente descrição, de modo a obter uma melhor compreensão das características da presente patente, e de acordo com uma preferencial realização prática da mesma, acompanha em anexo um conjunto de desenhos, onde de maneira exemplificada embora não limitativa, se representa o seguinte: [027] To complement this description, in order to obtain a better understanding of the characteristics of this patent, and in accordance with a preferred practical implementation thereof, a set of drawings is attached, where in an exemplified, although not limitative, manner, the following is represented:

[028] A figura 1 apresenta a representação esquemática do sistema de tratamento de esgoto/efluentes. [028] Figure 1 shows the schematic representation of the sewage/effluent treatment system.

[029] A figura 2 apresenta um desenho esquemático da torre de ultra oxidação hermética. [029] Figure 2 shows a schematic drawing of the hermetic ultra oxidation tower.

[030] A figura 3 apresenta o fluxograma simplificado do método de tratamento de efluentes e produção de água de reuso. [030] Figure 3 shows the simplified flowchart of the effluent treatment method and production of reused water.

DESCRIÇÃO DETALHADA DA INVENÇÃO DETAILED DESCRIPTION OF THE INVENTION

[031] De acordo com as referidas figuras, e em seus pormenores, a presente patente compreende um sistema e o respectivo método de tratamento de esgoto/efluentes de fluxo contínuo, incluindo uma torre de ultra oxidação hermética e compacta e uma unidade de produção do ozônio a partir do ar atmosférico, não necessitando de fornecimento externo do principal e único agente oxidante. A autoprodução garante autonomia a estação de tratamento. [031] According to the aforementioned figures, and in their details, the present patent comprises a system and the respective method for treating continuous flow sewage/effluents, including a hermetic and compact ultra-oxidation tower and a unit for producing ozone from atmospheric air, not requiring an external supply of the main and only oxidizing agent. Self-production guarantees autonomy to the treatment plant.

[032] O sistema de tratamento de esgoto/efluentes de fluxo contínuo compreende um compressor de ar para captação do ar atmosférico (1 ), tanques de ar comprimido (2), secadores de ar comprimido (3), concentradores de oxigênio (4) de alta eficiência (objeto da patente BR1 02024003331 -0), gerador de ozônio (5) de grande porte e alta eficiência (objeto da patente BR102024003332-9), caixa de captação do efluente bruto e gradeamento (6), caixa de regularização de vazão (7), torre de ultra oxidação hermética e compacta (8), tanque de polímeros (9), tanque de flotação (10), tanque de decantação (1 1 ), [032] The continuous flow sewage/effluent treatment system comprises an air compressor for capturing atmospheric air (1), compressed air tanks (2), compressed air dryers (3), high-efficiency oxygen concentrators (4) (subject of patent BR1 02024003331-0), large, high-efficiency ozone generator (5) (subject of patent BR102024003332-9), raw effluent capture box and screening (6), flow regulation box (7), hermetic and compact ultra-oxidation tower (8), polymer tank (9), flotation tank (10), settling tank (11),

Petição 870240014102, de 20/02/2024, pág. 12/22 tanque de lodo (12), conjunto de filtros centrífugos (13), tanque de micro filtração (14), tanque de efluente tratado para água de reuso (15). Petition 870240014102, dated February 20, 2024, page 12/22 sludge tank (12), centrifugal filter set (13), microfiltration tank (14), treated effluent tank for reuse water (15).

[033] Na etapa inicial, o efluente bruto oriundo da edificação é despejado na caixa de captação e gradeamento (6), onde são retidos os resíduos sólidos grosseiros e, na sequência, o efluente bruto é direcionado para a caixa de regularização de vazão (7). [033] In the initial stage, the raw effluent from the building is dumped into the collection and grating box (6), where the coarse solid waste is retained and, subsequently, the raw effluent is directed to the flow regulation box (7).

[034] A partir da caixa de regularização de vazão (7), o efluente bruto é direcionado por tubulação para a torre de ultra oxidação hermética (8). [035] O efluente bruto pressurizado é bombeado pela parte inferior da torre de ultra oxidação (8), através de uma conexão de entrada (8.1 ), e se desloca por fluxo ascendente sob injeção de ozônio. O ozônio em alta concentração (entre 50 g/h a 500g/h) é alimentado por uma conexão de entrada (8.2), em comunicação com um tubo Venturi (8.3), para ingresso de ozônio recebido do gerador de ozônio (5), por pressão negativa. [034] From the flow regulation box (7), the raw effluent is directed through piping to the hermetic ultra oxidation tower (8). [035] The pressurized raw effluent is pumped through the lower part of the ultra oxidation tower (8), through an inlet connection (8.1), and moves by upward flow under ozone injection. The high concentration ozone (between 50 g/h and 500 g/h) is fed through an inlet connection (8.2), in communication with a Venturi tube (8.3), for the entry of ozone received from the ozone generator (5), by negative pressure.

[036] Na região interna da torre de ultra oxidação (8) são dispostas chicanas internas (8.4) transversais ao fluxo do efluente de forma a maximizar o contato entre o ozônio e o efluente, promovendo a eliminação da carga orgânica e sua desinfecção. [036] In the internal region of the ultra oxidation tower (8), internal baffles (8.4) are arranged transversely to the effluent flow in order to maximize contact between the ozone and the effluent, promoting the elimination of the organic load and its disinfection.

[037] Após a passagem pela torre de oxidação (8), o efluente é liberado pela conexão de saída (8.6) da torre de ultra oxidação (8) e encaminhado para o tanque de flotação (10) onde recebe uma carga de polímeros armazenados em um tanque (9). [037] After passing through the oxidation tower (8), the effluent is released through the outlet connection (8.6) of the ultra oxidation tower (8) and sent to the flotation tank (10) where it receives a load of polymers stored in a tank (9).

[038] No tanque de flotação (10) é disposta uma esteira automatizada para a retirada do lodo flotado por arraste para encaminhamento a um reservatório de lodo (12). [038] In the flotation tank (10) an automated conveyor belt is arranged to remove the floated sludge by dragging it to a sludge reservoir (12).

[039] Do tanque de flotação (10) o efluente é direcionado para um tanque de decantação (1 1 ) dotado de bomba extratora para retirada de lodo decantado que é encaminhado para o tanque de lodo (12). [039] From the flotation tank (10) the effluent is directed to a settling tank (11) equipped with an extractor pump to remove the settled sludge, which is sent to the sludge tank (12).

Petição 870240014102, de 20/02/2024, pág. 13/22 [040] O efluente em tratamento segue para um conjunto de filtros centrífugos (13) e, após esta etapa, para uma unidade de microfiltração por membranas (14) para filtragem final. Petition 870240014102, dated February 20, 2024, page 13/22 [040] The effluent being treated goes to a set of centrifugal filters (13) and, after this stage, to a membrane microfiltration unit (14) for final filtration.

[041] Após a etapa de microfiltração, o efluente tratado é direcionado ao tanque (15) de reservação de água de reuso. [041] After the microfiltration stage, the treated effluent is directed to the reuse water storage tank (15).

[042] No tanque de reservação (15), a água de reuso é armazenada, recebendo corante, com o objetivo de distingui-la da água potável, e carga específica de cloro, conforme legislação. [042] In the reserve tank (15), the reused water is stored, receiving dye, with the aim of distinguishing it from drinking water, and a specific chlorine load, in accordance with legislation.

[043] Em etapa experimental, o esgoto sanitário bruto de um Shopping Center foi tratado, utilizando o sistema e método objeto da presente invenção, sendo apresentados dados relacionados ao processo de tratamento do esgoto e produção de água de reuso. [043] In an experimental stage, raw sewage from a Shopping Center was treated using the system and method that is the object of the present invention, with data related to the sewage treatment process and production of reused water being presented.

[044] Tabela 1 - Indicadores de etapa experimental [044] Table 1 - Experimental stage indicators

(a) Nível de acidez da água (a) Acidity level of water

(b) Quantidade de partículas em suspensão (unidade nefelométrica de turbidez) (b) Quantity of suspended particles (nephelometric unit of turbidity)

(c) Quantidade de 02 necessária para decompor a matéria orgânica.(c) Quantity of 02 required to decompose organic matter.

(d) Análise microbiológica, número mais provável em 100 mL (d) Microbiological analysis, most likely number in 100 mL

(e) Cloro adicionado. (e) Added chlorine.

Petição 870240014102, de 20/02/2024, pág. 14/22 (f) Avalia o peso total dos constituintes minerais presentes na água. OMS classifica como excelente < 300 mg/L. Petition 870240014102, dated February 20, 2024, page 14/22 (f) Assesses the total weight of mineral constituents present in the water. WHO classifies <300 mg/L as excellent.

(g) Teor de sais presentes na água (micro-siemens por centímetro) (g) Salt content in water (micro-siemens per centimeter)

Petição 870240014102, de 20/02/2024, pág. 15/22 Petition 870240014102, dated February 20, 2024, page 15/22

Claims

REIVINDICAÇÕES: CLAIMS: 1. SISTEMA DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO que compreende um compressor de ar para captação do ar atmosférico (1 ), tanques de ar comprimido (2), secadores de ar comprimido (3), concentradores de oxigênio (4) e gerador de ozônio (5), caracterizado por compreender: a) uma caixa de captação e gradeamento (6) que recebe o efluente bruto; b) uma caixa de regularização de vazão (7) que recebe o efluente da caixa de captação e gradeamento (6); c) uma torre de ultra oxidação hermética (8) que recebe por meio de tubulação o efluente bruto da caixa de regularização de vazão (7), dita torre de ultra oxidação (8) dotada de uma conexão de entrada inferior (8.1 ) para ingresso do efluente em tratamento pressurizado, uma conexão de entrada (8.2) em comunicação com um tubo Venturi (8.3) para ingresso de ozônio recebido do gerador de ozônio (5) e chicanas internas e transversais (8.4), ao fluxo ascendente do efluente; d) um tanque de flotação (10) que recebe o efluente liberado pela conexão de saída (8.6) da torre de ultra oxidação (8) para adição de polímeros; e) um tanque de decantação (1 1 ) que recebe o efluente do tanque de flotação (10); f) um tanque de lodo (12) que recebe o lodo removido do tanque de flotação (10) e do tanque de decantação (1 1 ); g) filtros centrífugos (13) que recebem o efluente em tratamento; h) uma unidade de microfiltração por membranas (14); i) um tanque (15) de reservação de água de reuso que recebe o efluente tratado na unidade de microfiltração por membranas (14). 1. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM comprising an air compressor for capturing atmospheric air (1), compressed air tanks (2), compressed air dryers (3), oxygen concentrators (4) and ozone generator (5), characterized by comprising: a) a collection and grating box (6) that receives the raw effluent; b) a flow regulation box (7) that receives the effluent from the collection and grating box (6); c) a hermetic ultra-oxidation tower (8) that receives, through piping, the raw effluent from the flow regulation box (7), said ultra-oxidation tower (8) equipped with a lower inlet connection (8.1) for the entry of the effluent in pressurized treatment, an inlet connection (8.2) in communication with a Venturi tube (8.3) for the entry of ozone received from the ozone generator (5) and internal and transversal baffles (8.4), to the ascending flow of the effluent; d) a flotation tank (10) that receives the effluent released through the outlet connection (8.6) of the ultra-oxidation tower (8) for the addition of polymers; e) a settling tank (11) that receives the effluent from the flotation tank (10); f) a sludge tank (12) that receives the sludge removed from the flotation tank (10) and the settling tank (11); g) centrifugal filters (13) that receive the effluent being treated; h) a membrane microfiltration unit (14); i) a reuse water storage tank (15) that receives the effluent treated in the membrane microfiltration unit (14). 2. SISTEMA DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO, de acordo com a reivindicação 1 , caracterizado pelo fato do polímero ser armazenado em um tanque (9) em comunicação com o tanque de flotação (10). 2. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM, according to claim 1, characterized in that the polymer is stored in a tank (9) in communication with the flotation tank (10). 3. SISTEMA DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO, de acordo com a reivindicação 1 , caracterizado pelo fato do tanque de flotação (10) apresentar uma esteira. 3. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM, according to claim 1, characterized in that the flotation tank (10) has a conveyor belt. 4. SISTEMA DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO, de acordo com a reivindicação 1 , caracterizado pelo fato do tanque de decantação (1 1 ) apresentar bomba extratora. 4. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM, according to claim 1, characterized in that the settling tank (11) has an extraction pump. 5. MÉTODO DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO utilizando o sistema reivindicado em 1 , caracterizado por compreender as etapas: a) recebimento do efluente bruto oriundo da edificação na caixa de captação e gradeamento (6); b) retenção dos resíduos sólidos grosseiros na caixa de captação e gradeamento (6); c) encaminhamento do efluente bruto para a caixa de regularização de vazão (7); d) encaminhamento do efluente bruto para a torre de ultra oxidação hermética (8) por tubulação; e) efluente bruto pressurizado bombeado pela conexão de entrada inferior (8.1 ) para ingresso e deslocamento ascendente na região interna da torre de ultra oxidação (8) sob injeção de ozônio em concentração entre 50 g/h a 500g/h e pressão negativa alimentado pela conexão de entrada (8.2) em comunicação com um tubo Venturi (8.3); f) efluente liberado pela conexão de saída (8.6) da torre de ultra oxidação (8) e encaminhado para o tanque de flotação (10); g) adicionada carga de polímeros no tanque de flotação (10); h) efluente é direcionado para o tanque de decantação (11 ); i) efluente em tratamento direcionado para um conjunto de filtros centrífugos (13) e, em sequência, para uma unidade de microfiltração por membranas (14); j) efluente tratado é direcionado ao tanque (15) de reservação de água de reuso. 5. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT METHOD using the system claimed in 1, characterized by comprising the steps: a) receiving raw effluent from the building in the collection and grating box (6); b) retaining coarse solid waste in the collection and grating box (6); c) forwarding the raw effluent to the flow regulation box (7); d) forwarding the raw effluent to the hermetic ultra-oxidation tower (8) by piping; e) pressurized raw effluent pumped through the lower inlet connection (8.1) for entry and upward displacement in the internal region of the ultra-oxidation tower (8) under injection of ozone in concentration between 50 g/h and 500 g/h and negative pressure fed through the inlet connection (8.2) in communication with a Venturi tube (8.3); f) effluent released through the outlet connection (8.6) of the ultra oxidation tower (8) and sent to the flotation tank (10); g) polymer load added to the flotation tank (10); h) effluent is directed to the settling tank (11); i) effluent under treatment directed to a set of centrifugal filters (13) and, subsequently, to a membrane microfiltration unit (14); j) treated effluent is directed to the reuse water reserve tank (15). 6. MÉTODO DE TRATAMENTO DE ESGOTO/EFLUENTES DE FLUXO CONTÍNUO, de acordo com a reivindicação 5, caracterizado pelo fato da água de reuso receber corante e cloro. 6. CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT METHOD, according to claim 5, characterized in that the reused water receives dye and chlorine.
PCT/BR2025/050059 2024-02-20 2025-02-18 System and method for continuous flow treatment of sewage/effluent Pending WO2025175366A1 (en)

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BR1020240033353 2024-02-20
BR102024003335-3A BR102024003335B1 (en) 2024-02-20 CONTINUOUS FLOW SEWAGE/EFFLUENT TREATMENT SYSTEM AND METHOD

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