WO2023168983A1 - 一种生活污水处理装置 - Google Patents

一种生活污水处理装置 Download PDF

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WO2023168983A1
WO2023168983A1 PCT/CN2022/132127 CN2022132127W WO2023168983A1 WO 2023168983 A1 WO2023168983 A1 WO 2023168983A1 CN 2022132127 W CN2022132127 W CN 2022132127W WO 2023168983 A1 WO2023168983 A1 WO 2023168983A1
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reaction chamber
domestic sewage
reaction
sewage treatment
treatment device
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PCT/CN2022/132127
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English (en)
French (fr)
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吴翼伶
吴鹏
张晓秾
陈俊江
王超超
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苏州科技大学
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Publication of WO2023168983A1 publication Critical patent/WO2023168983A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • the utility model relates to a domestic sewage treatment device.
  • Domestic sewage is wastewater discharged by residents in their daily lives. It mainly comes from residential buildings and public buildings, such as residences, offices, schools, hospitals, shops, public places and industrial enterprise toilets. As sewage discharge standards gradually improve, urban sewage treatment It is imperative to upgrade the factory to improve standards, and the bottleneck is to improve the total nitrogen removal effect. In order to protect the environment, domestic sewage plants have gradually begun to upgrade and transform, so that the effluent water quality standards meet the Class A standard of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB 18918-2002).
  • the PD/A process reduces the demand for organic carbon sources.
  • domestic sewage due to the biodegradable characteristics of domestic sewage carbon sources, domestic sewage often cannot meet the requirements of the PD/A process for efficient coupled denitrification.
  • the carbon source demand is that there is a lack of high-quality carbon sources in domestic sewage that are easy to achieve high NO 2 - -N accumulation.
  • the utility model provides a domestic sewage treatment device, which can perform multi-step pretreatment of domestic sewage, and introduce part of the wastewater after fermentation pretreatment into the CSTR reactor through a split flow pump to participate in the reaction, thereby improving the quality of the wastewater. Utilization rate of organic matter to achieve low energy consumption and efficient removal of carbon and nitrogen in biological sewage.
  • the utility model provides a domestic sewage treatment device, which includes a reaction box and a fluid power device;
  • the reaction box includes an ABR reactor and a CSTR reactor.
  • the ABR reactor includes an anaerobic fermentation reaction chamber, an anaerobic digestion reaction chamber and an aerobic nitrification reaction chamber that are connected to each other.
  • the connected reaction chambers are connected through a set of partitions and folding plates.
  • the flow plates are separated;
  • the CSTR reactor includes a PD/A reaction chamber, and the PD/A reaction chamber is separated from the aerobic nitrification reaction chamber by a set of partitions and baffles; the partitions and the baffles are separated. Fluid channels are formed between the flow plates for sewage circulation;
  • the fluid power device includes an inlet pump, a diverter pump and an air pump.
  • the inlet pump is used to transport domestic sewage to the anaerobic fermentation reaction chamber.
  • the diverter pump is used to divert the sewage in the anaerobic fermentation reaction chamber to the PD/ In reaction chamber A, the air pump is used to transport air to the aerobic nitrification chamber.
  • a water inlet is provided at the upper end of the anaerobic fermentation reaction chamber and is connected to the water inlet pump through a water inlet pipe; the height of the water inlet is higher than the height of the highest water level in the anaerobic fermentation reaction chamber.
  • the water inlet and the anaerobic fermentation reaction chamber are separated by a baffle.
  • a water outlet is provided on the top of the anaerobic fermentation reaction chamber, and one end of the diverter pump is connected through a conduit; a water inlet is provided on the top of the PD/A reaction chamber, and the other end of the diverter pump is connected through a conduit.
  • the upper end of the baffle is connected to the top of the reaction box, and there is a gap between the lower end and the bottom of the reaction box; the lower end of the baffle is provided with a bent portion.
  • an aeration port is provided at the bottom of the aerobic nitrification reaction chamber, and the aeration port is connected to the air pump through an air guide tube.
  • a biogas outlet is provided at the top of the anaerobic digestion reaction chamber.
  • the PD/A reaction chamber is filled with biological filler.
  • an overflow port is provided at the upper end of the PD/A reaction chamber; the overflow port and the biological filler are separated by first and second barrier plates; there is a gap between the first barrier plate and the bottom of the reaction box. There is a gap between the second barrier plate and the top of the reaction box.
  • reaction box is shaded with light-shielding cloth.
  • the device further includes a water bath for regulating the temperature in the reaction box.
  • the beneficial effects of the present utility model are: the utility model provides a domestic sewage treatment device that can divert water inflow, can perform multi-step pretreatment of domestic sewage, and convert organic matter in the domestic sewage into high-quality Carbon source, and by regulating the split ratio of sewage in the fermentation reaction chamber, the matrix of the sewage entering the PD/A reaction chamber reaches an optimal ratio, improving the total nitrogen removal rate of domestic sewage while saving energy consumption.
  • Figure 1 is a schematic diagram of a domestic sewage treatment device that diverts water inflow
  • 1 is the domestic sewage reservoir
  • 2 is the reaction box
  • 21 is the water inlet
  • 22 is the overflow port
  • 23 is the fermentation reaction chamber branch outlet
  • 24 is the biogas outlet
  • 25 is the PD/A reaction chamber water inlet.
  • 3 is the water bath
  • A1 is the anaerobic fermentation reaction chamber
  • A2 is the anaerobic digestion reaction chamber
  • A3 is the aerobic nitrification reaction chamber
  • A4 is the PD/A reaction chamber
  • Z1 is the first baffle
  • Z2 is the second Baffle
  • Z3 is the third baffle
  • Z4 is the fourth baffle
  • G1 is the first baffle
  • G1 is the second baffle
  • G3 is the third baffle
  • L1 is the first baffle
  • L2 is In the second set of partitions
  • P1 is the aeration port
  • B1 is the water inlet pump
  • B2 is the diverter pump
  • B3 is the air pump.
  • FIG. 1 This embodiment discloses a domestic sewage treatment device.
  • the structural schematic diagram is shown in Figure 1, which includes a domestic sewage reservoir 1, a reaction box 2, a water bath 3 and a fluid power device (water inlet pump B1, diverter pump B2 and air pump B3), in which the two ends of the water inlet pump B1 are respectively connected to the water inlet 21 of the reaction box and the domestic sewage reservoir 1 through conduits.
  • the reaction box 1 is composed of an ABR reactor and a CSTR reactor.
  • the ABR reactor includes An anaerobic fermentation reaction chamber A1, anaerobic digestion reaction chamber A2 and an aerobic nitrification reaction chamber A3 are provided.
  • a branch outlet 23 is provided on the top of the anaerobic fermentation reaction chamber A1, and a diverter pump B2 is connected to the anaerobic digestion reaction chamber A2 through a conduit.
  • a biogas outlet 24 is provided at the top, and an aeration port is provided at the bottom of the aerobic nitrification reaction chamber, which is connected to the air pump B3 through an air guide pipe.
  • the anaerobic fermentation reaction chamber A1 and the water inlet 21 are separated by a baffle Z1.
  • the reaction chamber A2 and the anaerobic fermentation reaction chamber A1 are separated by the partition G1 and the baffle Z2, and the aerobic nitrification reaction chamber A3 and the anaerobic digestion reaction chamber A2 are separated by the partition G2 and the baffle Z3;
  • CSTR reactor Contains a PD/A reaction chamber.
  • the PD/A reaction chamber is separated from the aerobic nitrification reaction chamber A3 by the partition G3 and the baffle Z4.
  • the reaction box is provided with an overflow port 22 on the rightmost side, and the overflow port 22 is separated from the PD/A reaction chamber by baffle plates L1 and L2; the reaction box 2 is set in the water bath 3, and the reaction box is maintained by the water bath. temperature.
  • the domestic sewage in the reservoir 1 is transported to the reaction box 2 through the water inlet pump B1, and flows into the fermentation reaction chamber through the baffle Z1.
  • Most of the COD in the domestic sewage is converted into high-quality carbon sources and treated by anaerobic fermentation.
  • the final sewage partially overflows over the partition G1 and flows out of the fermentation reaction chamber, and flows into the digestion reaction chamber through the baffle Z2.
  • the COD in the sewage is converted into biogas after anaerobic digestion and is exported.
  • the treated sewage crosses the partition G2.
  • the overflow flows out of the digestion reaction chamber and flows into the nitrification reaction chamber through the baffle Z3. It is aerated into the nitrification reaction chamber through the air pump B3.
  • the sewage undergoes an aerobic nitrification reaction in the nitrification reaction chamber to remove NH 4 + in the sewage.
  • -N is converted into NO 3 - -N then overflows the partition G3 and flows out of the nitrification reaction chamber, and flows through the baffle Z4 into the PD/A reaction chamber for short-range denitrification anaerobic ammonium oxidation reaction.
  • diverter pump B2 transports part of the domestic sewage rich in high-quality carbon sources from the anaerobic fermentation reaction chamber to the PD/A reaction chamber.
  • the amount of water that overflows from the anaerobic fermentation reaction chamber to the anaerobic digestion reaction chamber is Q1
  • the amount of water transported from the anaerobic fermentation reaction chamber to the PD/A reaction chamber by the diverter pump is Q2.

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  • 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)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

一种生活污水处理装置，包括反应箱体（2）、流体动力装置，反应箱体（2）包括ABR反应器和CSTR反应器，ABR反应器包括依次相连设置的厌氧发酵反应室（A1）、厌氧消化反应室（A2）及好氧硝化反应室（A3），相连反应室通过一组隔板和折流板相间隔， CSTR反应器包含PD/A反应室（A4），PD/A反应室（A4）通过一组隔板和折流板与好氧硝化反应室（A3）相间隔；流体动力装置包括进水泵（B1）、分流泵（B2）以及空气泵（B3），进水泵（B1）用于将生活污水输送至厌氧发酵反应室（A1），分流泵（B2）用于将厌氧发酵反应室（A1）内的污水分流至PD/A反应室（A4）中，空气泵（B3）用于向好氧硝化反应室（A3）内输送空气。

Description

一种生活污水处理装置 技术领域
本实用新型涉及一种生活污水处理装置。
背景技术
生活污水是居民日常生活中排出的废水，主要来源于居住建筑和公共建筑，如住宅、机关、学校、医院、商店、公共场所及工业企业卫生间等，随着污水排放标准逐渐提高，城市污水处理厂提标改造势在必行，其中瓶颈在于提高总氮去除效果。为保护环境，国内污水厂逐步开始升级改造，以使出水水质标准达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。
与传统反硝化脱氮技术相比，PD/A工艺降低了对有机碳源的需求量，然而受制于生活污水碳源的可生物降解特性，生活污水往往无法满足PD/A工艺高效耦合脱氮的碳源需求，即生活污水中缺少易于实现高NO 2 --N积累的优质碳源。为提高PD/A工艺对总氮的去除，需投加碳源以及人工调控进水中各基质的比例，增加了污水处理厂的运行费用。
实用新型内容
本实用新型为解决上述问题，提供了一种生活污水处理装置，可对生活污水进行多步预处理，并将发酵预处理后的部分废水通过分流泵引入CSTR反应器中参与反应，提高废水中有机物的利用率，以实现低耗能、高效去除生物污水中的碳氮。
本实用新型包含以下技术方案：
本实用新型提供了一种生活污水处理装置，所述装置包括反应箱、流体动 力装置；
所述反应箱包括ABR反应器和CSTR反应器，所述ABR反应器包含相连设置的厌氧发酵反应室、厌氧消化反应室及好氧硝化反应室，相连反应室通过一组隔板和折流板相间隔；所述CSTR反应器包含PD/A反应室，所述PD/A反应室通过一组隔板和折流板与所述好氧硝化反应室相间隔；所述隔板与折流板之间形成流体通道，用于污水流通；
所述流体动力装置包括进水泵、分流泵以及空气泵，所述进水泵用于将生活污水输送至厌氧发酵反应室，所述分流泵用于将厌氧发酵反应室内的污水分流至PD/A反应室中，所述空气泵用于输送空气至好氧硝化室内。
进一步地，所述厌氧发酵反应室上端开设有进水口，通过进水管与所进水泵连接；所述进水口的高度高于厌氧发酵反应室内最高水位的高度。
进一步地，所述进水口与厌氧发酵反应室通过一折流板相间隔。
进一步地，所述厌氧发酵反应室顶部开设有出水口，通过导管连接所述分流泵的一端；所述PD/A反应室顶部开设有进水口，通过导管连接所述分流泵的另一端。
进一步地，所述隔板的上端部与反应箱体的顶部留有空隙，下端部与箱体的底部相连接；所述反应箱内隔板的高度沿着水流的方向依次降低。
进一步地，所述折流板的上端部与反应箱的顶部相连接，下端部与反应箱体的底部留有空隙；所述折流板的下端部设置有一弯折部。
进一步地，所述好氧硝化反应室底部设置一曝气口，所述曝气口通过导气管与所述空气泵连接。
进一步地，所述厌氧消化反应室顶部开设有沼气导出口。
进一步地，所述PD/A反应室中填充有生物填料。
进一步地，所述PD/A反应室上端开设有溢水口；所述溢水口与生物填料之间由第一、第二阻隔板隔开；所述第一阻隔板与反应箱体的底部留有空隙，所述第二阻隔板与反应箱体的顶部留有空隙。
进一步地，所述反应箱体采用遮光布进行遮光处理。
进一步地，所述装置还包括一水浴池，用于调控所述反应箱内的温度。
与现有技术相比，本实用新型的有益效果在于：本实用新型提供一种可分流进水的生活污水处理装置，可对生活污水进行多步预处理，将生活污水中的有机物转化为优质碳源，并通过调控发酵反应室内污水的分流比，使进入PD/A反应室内的污水的基质达到最优比，提高生活污水的总氮去除率，同时节省能耗。
附图说明
图1为一种分流进水的生活污水处理装置示意图；
图中1为生活污水蓄水池、2为反应箱体、21为进水口、22为溢水口、23为发酵反应室分流出水口、24为沼气导出口、25为PD/A反应室进水口、3为水浴池、A1为厌氧发酵反应室、A2为厌氧消化反应室、A3为好氧硝化反应室、A4为PD/A反应室、Z1为第一折流板、Z2为第二折流板、Z3为第三折流板、Z4为第四折流板、G1为第一隔板、G1为第二隔板、G3为第三隔板、L1为第一阻隔板、L2为第二组隔板、P1为曝气口、B1为进水泵、B2为分流泵、B3为空气泵。
具体实施方式
下面通过附图及具体实施例对本实用新型作进一步说明，以使本领域的技术人员可以更好地理解本实用新型并能予以实施，但所举实施例不作为对本实 用新型的限定。
除非另有定义，本文所使用的所有的技术和科学术语与属于本实用新型的技术领域的技术人员通常理解的含义相同。本文中在本实用新型的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本实用新型。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本实施例公开了一种生活污水处理装置，结构示意图如图1所示，包括生活污水蓄水池1、反应箱2、水浴池3以及流体动力装置(进水泵B1、分流泵B2以及空气泵B3)，其中进水泵的进水泵B1的两端分别通过导管连接反应箱的进水口21和生活污水蓄水池1，反应箱1由ABR反应器、CSTR反应器组成，ABR反应器包括依次相连设置的厌氧发酵反应室A1、厌氧消化反应室A2及好氧硝化反应室A3，厌氧发酵反应室A1顶部开设有分流出水口23，通过导管连接分流泵B2，厌氧消化反应室A2顶部开设有沼气导出口24，好氧硝化反应室底部设置有曝气口，通过导气管连接空气泵B3，其中厌氧发酵反应室A1与进水口21通过折流板Z1相间隔，厌氧消化反应室A2与厌氧发酵反应室A1通过隔板G1和折流板Z2相间隔，好氧硝化反应室A3与厌氧消化反应室A2通过隔板G2和折流板Z3相间隔；CSTR反应器包含PD/A反应室，PD/A反应室顶部开设有进水口25，通过导管与分流泵B2连接，PD/A反应室通过隔板G3和折流板Z4与好氧硝化反应室A3相间隔，所述反应箱体最右侧开设有溢水口22，所述溢水口22通过阻隔板L1、L2与PD/A反应室相间隔；反应箱2设置于水浴池3内，通过水浴保持反应箱的温度。
上述隔板G1～G3的上端部均与反应箱体的顶部留有空隙，相应隔板的高度G1>G2>G3，实现溢流出水的方式；折流板Z1～Z4的下端部与反应箱体的底部留有空隙，且在折流板的下端部设置有一弯折部，引流的同时防止各反应室内的污泥流失；第一阻隔板与反应箱体的底部留有空隙，第二阻隔板与反应箱体的顶部留有空隙。
蓄水池1中的生活污水通过进水泵B1输送至反应箱2中，经过折流板Z1流至发酵反应室中，将生活污水中的大部分COD转化为优质碳源，经厌氧发酵处理后的污水部分越过隔板G1溢流出发酵反应室，并经过折流板Z2流至消化反应室中，污水中的COD经厌氧消化处理后转化为沼气导出，处理后的污水越过隔板G2溢流出消化反应室，并经过折流板Z3流至硝化反应室中，通过空气泵B3向硝化反应室中曝气，污水在硝化反应室中进行好氧硝化反应，将污水中的NH 4 +-N转化为NO 3 --N后越过隔板G3溢流出硝化反应室，并经过折流板Z4流至PD/A反应室中，进行短程反硝化厌氧氨氧化反应，此外，通过分流泵B2将部分富含优质碳源的生活污水从厌氧发酵反应室中输送至PD/A反应室中。
上述由厌氧发酵反应室中溢流至厌氧消化反应室的水量为Q1，由分流泵从厌氧发酵反应室中输送至PD/A反应室的水量为Q2，通过调节Q1和Q2的比例以及好氧硝化室的曝气量，可优化PD/A反应室中的污水的基质比，提高PD/A工艺的脱氮效率。
以上所述实施例仅是为充分说明本实用新型而所举的较佳的实施例，本实用新型的保护范围不限于此。本技术领域的技术人员在本实用新型基础上所作的等同替代或变换，均在本实用新型的保护范围之内。本实用新型的保护范围以权利要求书为准。

Claims (10)

  1. 一种生活污水处理装置，其特征在于，所述装置包括反应箱、流体动力装置；
    所述反应箱包括ABR反应器和CSTR反应器，所述ABR反应器包含相连设置的厌氧发酵反应室、厌氧消化反应室及好氧硝化反应室，相连反应室通过一组隔板和折流板相间隔；所述CSTR反应器包含PD/A反应室，所述PD/A反应室通过一组隔板和折流板与所述好氧硝化反应室相间隔；每组隔板与折流板之间形成流体通道，用于污水流通；
    所述流体动力装置包括进水泵、分流泵以及空气泵，所述进水泵用于将生活污水输送至厌氧发酵反应室，所述分流泵用于将厌氧发酵反应室内的污水分流至PD/A反应室中，所述空气泵用于输送空气至好氧硝化室内。
  2. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述厌氧发酵反应室上端开设有进水口，通过进水管与所进水泵连接；所述进水口的高度高于厌氧发酵反应室内最高水位的高度。
  3. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述进水口与厌氧发酵反应室内厌氧发酵反应区通过一折流板相间隔。
  4. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述隔板的上端部与反应箱体的顶部留有空隙，下端部与箱体的底部相连接；所述反应箱内隔板的高度沿着水流的方向依次降低。
  5. 根据权利要求1或3所述的一种生活污水处理装置，其特征在于，所述折流板的上端部与反应箱的顶部相连接，下端部与反应箱体的底部留有空隙；所述折流板的下端部设置有一弯折部。
  6. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述好氧 硝化反应室底部设置一曝气口，所述曝气口通过导气管与所述空气泵连接。
  7. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述厌氧消化反应室顶部开设有沼气导出口。
  8. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述PD/A反应室中填充有生物填料，所述PD/A反应室上端开设有溢水口；所述溢水口与生物填料之间由第一、第二阻隔板隔开；所述第一阻隔板与反应箱体的底部留有空隙，所述第二阻隔板与反应箱体的顶部留有空隙。
  9. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述反应箱体采用遮光布进行遮光处理。
  10. 根据权利要求1所述的一种生活污水处理装置，其特征在于，所述装置还包括一水浴池，用于调控所述反应箱内的温度。
PCT/CN2022/132127 2022-03-08 2022-11-16 一种生活污水处理装置 WO2023168983A1 (zh)

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