CN105502661B - A kind of italic formula oxidation ditch - Google Patents
A kind of italic formula oxidation ditch Download PDFInfo
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- CN105502661B CN105502661B CN201610072217.2A CN201610072217A CN105502661B CN 105502661 B CN105502661 B CN 105502661B CN 201610072217 A CN201610072217 A CN 201610072217A CN 105502661 B CN105502661 B CN 105502661B
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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
- C02F3/308—Biological phosphorus removal
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
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Abstract
本发明公开一种斜体式氧化沟,该斜体式氧化沟主要包括:依次串联连接的好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池;所述斜体式氧化沟,通过三道圆弧型导流墙、三道直线型导流墙、一道固定式溢流堰和一道移动式溢流堰将其分为好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池;所述的好氧池、兼氧池、厌氧池和缺氧池的底部安装两台转刷曝气机;所述斜体式氧化沟底部设有可拆卸的支撑柱。该斜体式氧化沟采用一体化的设计,使用灵活方便,可广泛用于小水量的生活污水的处理。
The invention discloses an italic oxidation ditch. The italic oxidation ditch mainly includes: an aerobic pool, a facultative oxygen pool, an anaerobic pool, an anoxic pool, a secondary settling pool and a clean water pool connected in series; The ditch is divided into aerobic pool, facultative pool, anaerobic pool, anaerobic pool and Oxygen tank, secondary sedimentation tank and clear water tank; two rotating brush aerators are installed at the bottom of the aerobic tank, facultative tank, anaerobic tank and anoxic tank; support column. The italic oxidation ditch adopts an integrated design, is flexible and convenient to use, and can be widely used in the treatment of domestic sewage with a small amount of water.
Description
技术领域technical field
本发明属于环境工程废水处理技术领域,具体地说是一种斜体式氧化沟。The invention belongs to the technical field of environmental engineering wastewater treatment, in particular to an italic oxidation ditch.
背景技术Background technique
由于水资源日益紧缺,解决点源、面源污染成为了水环境保护的主题,特别是分散而难于收集的小水量污染源,迫切需要移动式的处理装置对其进行处理。在废水处理系统中,活性污泥法占有不可或缺的重要地位,而氧化沟工艺是当前废水生物处理最主要的处理工艺之一。Due to the increasing shortage of water resources, the solution to point source and non-point source pollution has become the theme of water environmental protection, especially for small water pollution sources that are scattered and difficult to collect, and mobile treatment devices are urgently needed to treat them. In the wastewater treatment system, the activated sludge method occupies an indispensable and important position, and the oxidation ditch process is one of the most important treatment processes for the biological treatment of wastewater.
氧化沟工艺是一种污水在沟渠中做循环运动的、通过曝气转刷或转盘进行曝气的活性污泥工艺。氧化沟工艺污泥负荷低,循环流量大,抗冲击负荷能力强,流程简单、维护管理方便、处理效果稳定、运行成本低,可不设初沉池和污泥消化池等优点,是备受欢迎的二级处理工艺。同时,经过几十年的实践探索,氧化沟工艺被认为是出水水质好、最为经济的生物处理技术。但是,传统的氧化沟工艺的曝气方式单一,占地面积大,充氧效率低,有效水深浅,排泥不畅,污泥膨胀等缺点,限制氧化沟工艺的应用和发展。Oxidation ditch process is an activated sludge process in which sewage circulates in a ditch and is aerated through an aeration brush or a turntable. Oxidation ditch process has the advantages of low sludge load, large circulation flow, strong impact load resistance, simple process, convenient maintenance and management, stable treatment effect, low operating cost, no need for primary sedimentation tank and sludge digestion tank, etc., and is very popular. secondary treatment process. At the same time, after decades of practical exploration, the oxidation ditch process is considered to be the most economical biological treatment technology with good effluent quality. However, the traditional oxidation ditch process has a single aeration method, a large area, low oxygenation efficiency, shallow effective water depth, poor sludge discharge, and sludge bulking, which limit the application and development of the oxidation ditch process.
因此,研发一种低能耗、高效率的氧化沟工艺,具有深远的重大意义。Therefore, it is of far-reaching significance to develop a low-energy, high-efficiency oxidation ditch process.
发明内容Contents of the invention
本发明的目的在于克服排泥不畅,污泥易沉降于沟渠,有效水深小,脱氮效果不佳,污泥膨胀和设备占地面积大等技术的不足,提供一种斜体式氧化沟。The purpose of the present invention is to overcome the technical deficiencies such as poor sludge discharge, easy sedimentation of sludge in ditches, small effective water depth, poor denitrification effect, sludge bulking and large equipment footprint, and provide an italic oxidation ditch.
解决上述技术问题的技术方案是:The technical scheme that solves the above-mentioned technical problem is:
一种斜体式氧化沟,主要包括:依次串联连接的好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池;所述的好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池合建成斜体式氧化沟。An italic type oxidation ditch mainly includes: an aerobic tank, a facultative tank, an anaerobic tank, an anoxic tank, a secondary settling tank and a clear water tank connected in series; the aerobic tank, the facultative tank, the anaerobic tank pool, anoxic pool, secondary settling pool and clean water pool to form an italic oxidation ditch.
所述斜体式氧化沟,通过三道圆弧型导流墙、三道直线型导流墙、一道固定式溢流堰和一道移动式溢流堰将其分为好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池;好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池均安装在同一块倾斜底板上,污水可靠重力作用从好氧池自流至清水池。The italic oxidation ditch is divided into aerobic pool, facultative pool, Anaerobic tank, anoxic tank, secondary sedimentation tank and clear water tank; aerobic tank, facultative oxygen tank, anaerobic tank, anoxic tank, secondary sedimentation tank and clear water tank are all installed on the same inclined bottom plate, and the sewage can be reliably treated by gravity From the aerobic pool to the clean water pool.
所述斜体式氧化沟,好氧池、兼氧池、厌氧池和缺氧池的底部安装两台转刷曝气机,两台转刷曝气机的控制器相向地安装,转刷使污泥和污水充分混匀,转刷曝气机鼓风量控制水中溶解氧(DO);两台转刷曝气机的最近转刷控制器的一段转刷曝气管曝气,其后的曝气管密封不曝气;两台转刷曝气机相向运转,且转速保持不一样,以增大水流的传质阻力,使污泥不易沉淀且得到充分搅拌;两台转刷曝气机适时交替曝气,并相应控制曝气量,可实现A2/O和倒置A2/O两模式的交替运行,以减少发生污泥膨胀现象,并同时达到脱氮除磷效果。In the italic type oxidation ditch, two rotating brush aerators are installed at the bottom of the aerobic pool, the facultative oxygen pool, the anaerobic pool and the anoxic pool, and the controllers of the two rotating brush aerators are installed oppositely, and the rotating brushes make The sludge and sewage are fully mixed, and the blowing volume of the rotary brush aerator controls the dissolved oxygen (DO) in the water; the first section of the rotary brush aeration tube of the nearest rotary brush controller of the two rotary brush aerators is aerated, and the subsequent aeration The trachea is sealed without aeration; the two rotary brush aerators run in opposite directions, and the speeds are kept different to increase the mass transfer resistance of the water flow, so that the sludge is not easy to settle and is fully stirred; the two rotary brush aerators are timely Alternate aeration and corresponding control of the aeration volume can realize the alternate operation of A 2 /O and inverted A 2 /O modes, so as to reduce the phenomenon of sludge bulking and achieve the effect of nitrogen and phosphorus removal at the same time.
所述斜体式氧化沟,缺氧池末端设置两道溢流堰;距离缺氧池末端最远的溢流堰为固定式溢流堰,另一道溢流堰为移动式溢流堰,固定式溢流堰高度较移动式溢流堰的低;固定式溢流堰和移动式溢流堰将缺氧池末端的池子分割成二沉池和清水池;二沉池出水流经固定式溢流堰进入清水池,经二沉池静置后的出水,水中悬浮物质(SS)可大大减少。In the italic oxidation ditch, two overflow weirs are arranged at the end of the anoxic tank; the overflow weir farthest from the end of the anoxic tank is a fixed overflow weir, and the other overflow weir is a mobile overflow weir, fixed The height of the overflow weir is lower than that of the mobile overflow weir; the fixed overflow weir and the mobile overflow weir divide the pool at the end of the anoxic tank into a secondary sedimentation tank and a clean water tank; the effluent of the secondary sedimentation tank flows through the fixed overflow The weir enters the clear water tank, and the suspended matter (SS) in the water can be greatly reduced after the secondary sedimentation tank is left standing.
所述斜体式氧化沟,移动式溢流堰也可称为可拆卸溢流堰,即在其安装位置上设置一定深度的沟槽,再安装事先准备好的溢流堰即可;根据污水处理负荷,安装不同高度的溢流堰,可以加深设备的有效水深,适当延长污水的水力停留时间。The italic oxidation ditch and the mobile overflow weir can also be called detachable overflow weirs, that is, a groove with a certain depth is set at the installation position, and then the overflow weir prepared in advance can be installed; according to the sewage treatment Load, installing overflow weirs of different heights can deepen the effective water depth of the equipment and appropriately prolong the hydraulic retention time of sewage.
所述斜体式氧化沟,缺氧池排泥管、二沉池排泥管和清水池排水管均安装在其底部,主要依靠倾斜底板带来的重力流作用,使得排泥顺畅、排水顺畅,且减少机械能耗。The italic oxidation ditch, the mud discharge pipe of the anoxic tank, the mud discharge pipe of the secondary settling tank and the drain pipe of the clear water tank are all installed at the bottom, mainly relying on the gravity flow effect brought by the inclined bottom plate, so that the mud discharge and drainage are smooth, And reduce mechanical energy consumption.
所述二沉池排泥管和缺氧池排泥管连接污泥泵,需要污泥回流时,打开污泥泵,将其泥水回流至好氧池。The sludge discharge pipe of the secondary settling tank and the sludge discharge pipe of the anoxic tank are connected to a sludge pump, and when sludge reflux is required, the sludge pump is turned on to return the muddy water to the aerobic tank.
所述斜体式氧化沟,其底板设有支撑柱;支撑柱可折叠收起。The bottom plate of the italic oxidation ditch is provided with supporting columns; the supporting columns can be folded and stowed.
采用所述的斜体式氧化沟的污水处理方法,其步骤为:Adopt the sewage treatment method of described italic type oxidation ditch, its step is:
(1)污水由进水管进入斜体式氧化沟内,在转刷曝气机的搅拌下,泥水充分混匀;(1) The sewage enters the italic oxidation ditch from the water inlet pipe, and the muddy water is fully mixed under the agitation of the rotary brush aerator;
(2)在倾斜底板的重力流和转刷曝气机的推动力共同作用下,处理污水以先是由左至右,再由上至下折流的方式依次流经好氧池,兼氧池,厌氧池,缺氧池,二沉池和清水池;(2) Under the joint action of the gravity flow of the inclined bottom plate and the driving force of the rotary brush aerator, the treated sewage flows through the aerobic pool and the facultative pool in turn from left to right and then from top to bottom. , anaerobic pond, anoxic pond, secondary sedimentation pond and clean water pond;
(3)以回流的方式,处理污水循环通过好氧池,兼氧池,厌氧池和缺氧池,通过硝化和反硝化以及排泥,达到脱氮目的,同时COD、BOD均得到大幅度降解;(3) In the way of reflux, the treated sewage circulates through the aerobic pool, facultative pool, anaerobic pool and anoxic pool, through nitrification, denitrification and sludge discharge, to achieve the purpose of denitrification, and at the same time, COD and BOD are greatly improved degradation;
(4)通过检测出水水质指标,确定污泥龄,然后通过缺氧池排泥管和二沉池排泥管适时排泥,从而达到除磷效果。(4) Determine the sludge age by detecting the water quality index, and then timely discharge the sludge through the sludge discharge pipe of the anoxic tank and the sludge discharge pipe of the secondary sedimentation tank, so as to achieve the effect of phosphorus removal.
本发明的有益效果是:The beneficial effects of the present invention are:
1.设备占地面积少、便携。各池间依靠导流墙分隔,重力流作用下,以折流方式串联各池,特别适用于低处理量的污水处理;1. The equipment occupies a small area and is portable. The pools are separated by diversion walls, and under the action of gravity flow, the pools are connected in series in a baffled manner, which is especially suitable for low-volume sewage treatment;
2.排泥顺畅,污泥不易淤积池底。在倾斜底板的重力流作用下,排泥彻底,还有效减少了污泥膨胀现象;2. The sludge is discharged smoothly, and the sludge is not easy to deposit on the bottom of the pool. Under the action of the gravity flow of the inclined bottom plate, the sludge is completely discharged, and the phenomenon of sludge bulking is effectively reduced;
3.转刷控氧,均化效果好。在斜体式氧化沟内,通过调控转刷曝气机的转速,运行方向及其鼓风量,使斜体式氧化沟中泥水充分混合;3. The rotating brush controls oxygen, and the homogenization effect is good. In the italic oxidation ditch, the mud and water in the italic oxidation ditch are fully mixed by adjusting the rotating speed, running direction and blowing volume of the rotary brush aerator;
4.有效水深大,调节方便。设置可移动式或是可拆卸式的溢流堰,并通过安装不同高度的溢流堰,以加大斜体式氧化沟的有效水深,不仅提高了生物降解效率,还延长了污水的水力停留时间;4. Large effective water depth, easy to adjust. Install movable or detachable overflow weirs, and install overflow weirs of different heights to increase the effective water depth of the italic oxidation ditch, which not only improves the biodegradation efficiency, but also prolongs the hydraulic retention time of sewage ;
5.自动化管理,节省劳动力。结合智控技术,实现一体化装置的进、出水等问题;5. Automatic management, saving labor. Combining intelligent control technology to realize the water inlet and outlet of the integrated device;
6.处理效果好,工艺系统运行稳定。通过设置简单的二沉池可大大减少出水水中的悬浮物质(SS)含量,经过生物降解处理后,可确保产水水质达到《污水综合排放标准》和地方性法规的排放要求;6. The treatment effect is good, and the process system runs stably. By setting up a simple secondary sedimentation tank, the content of suspended matter (SS) in the effluent water can be greatly reduced. After biodegradation treatment, the quality of the produced water can be guaranteed to meet the discharge requirements of the "Integrated Wastewater Discharge Standard" and local regulations;
7.操作维护简便,运行管理安全可靠。7. Easy operation and maintenance, safe and reliable operation management.
附图说明Description of drawings
图1是本发明设备结构三视图;Fig. 1 is three views of equipment structure of the present invention;
《附图中序号说明》"Description of Serial Numbers in the Attached Drawings"
1-1、1-2:转刷曝气机;1-3:圆弧型导流墙;1-4:直线型导流墙;1-5:进水管;1-6:可拆卸支撑柱;1-7:固定式溢流堰;1-8:移动式溢流堰;1-9:二沉池;1-10:清水池;1-11:倾斜底板;1-12:好氧池;1-13:兼氧池;1-14:厌氧池;1-15:缺氧池;1-16:清水池排水管;1-17:二沉池排泥管;1-18:缺氧池排泥管。1-1, 1-2: rotary brush aerator; 1-3: arc diversion wall; 1-4: straight diversion wall; 1-5: water inlet pipe; 1-6: detachable support column ;1-7: fixed overflow weir; 1-8: mobile overflow weir; 1-9: secondary settling tank; 1-10: clear water tank; ;1-13: facultative oxygen tank; 1-14: anaerobic tank; 1-15: anoxic tank; 1-16: clear water tank drainage pipe; Oxygen pool mud pipe.
具体实施方式Detailed ways
下面结合附图对本发明的实施例进一步详述。Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
图1是本发明设备连接示意图。Fig. 1 is a schematic diagram of device connection of the present invention.
如图1所示,本发明提供一种斜体式氧化沟,主要包括:依次串联连接的好氧池1-12,兼氧池1-13,厌氧池1-14,缺氧池1-15,二沉池1-9和清水池1-10;所述的好氧池1-12,兼氧池1-13,厌氧池1-14,缺氧池1-15,二沉池1-9和清水池1-10合建成斜体式氧化沟。As shown in Figure 1, the present invention provides an italic type oxidation ditch, mainly comprising: aerobic pools 1-12 connected in series, facultative oxygen pools 1-13, anaerobic pools 1-14, and anoxic pools 1-15 , secondary sedimentation tank 1-9 and clear water tank 1-10; described aerobic tank 1-12, facultative oxygen tank 1-13, anaerobic tank 1-14, anoxic tank 1-15, secondary sedimentation tank 1- 9 and clear water pool 1-10 are combined into an italic type oxidation ditch.
所述斜体式氧化沟,通过三道圆弧型导流墙1-3、三道直线型导流墙1-4、一道固定式溢流堰1-7和一道移动式溢流堰1-8将其分为好氧池1-12,兼氧池1-13,厌氧池1-14,缺氧池1-15,二沉池1-9和清水池1-10;好氧池1-12,兼氧池1-13,厌氧池1-14,缺氧池1-15,二沉池1-9和清水池1-10均安装在同一块倾斜底板1-11上,污水可靠重力作用从好氧池1-12自流至清水池1-10。The italic oxidation ditch passes through three arc-shaped diversion walls 1-3, three linear diversion walls 1-4, one fixed overflow weir 1-7 and one mobile overflow weir 1-8 It is divided into aerobic pool 1-12, facultative pool 1-13, anaerobic pool 1-14, anoxic pool 1-15, secondary sedimentation pool 1-9 and clear water pool 1-10; aerobic pool 1- 12. Facultative pools 1-13, anaerobic pools 1-14, anoxic pools 1-15, secondary sedimentation pools 1-9 and clean water pools 1-10 are all installed on the same inclined floor 1-11, and the sewage can be reliably discharged by gravity The function flows from the aerobic pool 1-12 to the clear water pool 1-10.
所述斜体式氧化沟,好氧池1-12、兼氧池1-13、厌氧池1-14和缺氧池1-15的底部安装两台转刷曝气机1-1、1-2,两台转刷曝气机1-1、1-2的控制器相向地安装,转刷使污泥和污水充分混匀,转刷曝气机1-1、1-2鼓风量控制水中溶解氧(DO);两台转刷曝气机1-1、1-2的最近转刷控制器的一段转刷曝气管曝气,其后的曝气管密封不曝气;两台转刷曝气机1-1、1-2相向运转,且转速保持不一样,以增大水流的传质阻力,使污泥不易沉淀且得到充分搅拌;两台转刷曝气机1-1、1-2适时交替曝气,并相应控制曝气量,可实现A2/O和倒置A2/O两模式的交替运行,以减少发生污泥膨胀现象,并同时达到脱氮除磷效果。In the italic type oxidation ditch, two rotary brush aerators 1-1, 1- 2. The controllers of the two rotating brush aerators 1-1 and 1-2 are installed opposite to each other. The rotating brushes fully mix the sludge and sewage, and the blowing volume of the rotating brush aerators 1-1 and 1-2 controls the amount of air in the water. Dissolved oxygen (DO); two brush aerators 1-1 and 1-2 are aerated by a section of the brush aeration tube closest to the brush controller, and the subsequent aeration tube is sealed and not aerated; two rotary brush aerators The brush aerators 1-1 and 1-2 run in opposite directions, and the speeds are kept different to increase the mass transfer resistance of the water flow, so that the sludge is not easy to settle and is fully stirred; two rotary brush aerators 1-1, 1-2 Timely alternate aeration, and corresponding control of aeration volume, can realize the alternate operation of A 2 /O and inverted A 2 /O modes, so as to reduce the phenomenon of sludge bulking and achieve the effect of nitrogen and phosphorus removal at the same time.
所述斜体式氧化沟,缺氧池1-15末端设置两道溢流堰1-7、1-8;距离缺氧池1-15末端最远的溢流堰为固定式溢流堰1-7,另一道溢流堰为移动式溢流堰1-8,固定式溢流堰1-7高度较移动式溢流堰的低;固定式溢流堰1-7和移动式溢流堰1-8将缺氧池1-15末端的池子分割成二沉池1-9和清水池1-10;二沉池1-9出水流经固定式溢流堰1-7进入清水池1-10,经二沉池1-9静置后的出水,水中悬浮物质(SS)可大大减少。In the italic type oxidation ditch, two overflow weirs 1-7 and 1-8 are arranged at the end of the anoxic pool 1-15; the overflow weir farthest from the end of the anoxic pool 1-15 is a fixed overflow weir 1- 7. The other overflow weir is mobile overflow weir 1-8, and the height of fixed overflow weir 1-7 is lower than that of mobile overflow weir; fixed overflow weir 1-7 and mobile overflow weir 1 -8 divides the pool at the end of the anoxic pool 1-15 into a secondary sedimentation pool 1-9 and a clear water pool 1-10; the outlet water of the secondary sedimentation pool 1-9 flows through the fixed overflow weir 1-7 and enters the clear water pool 1-10 , Suspended matter (SS) in the effluent after the secondary settling tank 1-9 stands still can be greatly reduced.
所述斜体式氧化沟,移动式溢流堰1-8也可称为可拆卸溢流堰1-8,即在其安装位置上设置一定深度的沟槽,再安装事先准备好的溢流堰即可;根据污水处理负荷,安装不同高度的溢流堰,可以加深设备的有效水深,适当延长污水的水力停留时间。The italic oxidation ditch, the mobile overflow weir 1-8 can also be called the detachable overflow weir 1-8, that is, a groove with a certain depth is set on its installation position, and then the overflow weir prepared in advance is installed. According to the sewage treatment load, installing overflow weirs of different heights can deepen the effective water depth of the equipment and appropriately extend the hydraulic retention time of sewage.
所述斜体式氧化沟,缺氧池排泥管1-18、二沉池排泥管1-17和清水池排水管1-16均安装在其底部,主要依靠倾斜底板1-11带来的重力流作用,使得排泥顺畅、排水顺畅,且减少机械能耗。The italic oxidation ditch, the mud discharge pipe 1-18 of the anoxic tank, the mud discharge pipe 1-17 of the secondary sedimentation tank and the drain pipe 1-16 of the clean water tank are all installed at the bottom thereof, mainly relying on the sloping bottom plate 1-11 to bring The effect of gravity flow makes mud discharge and drainage smooth, and reduces mechanical energy consumption.
所述二沉池排泥管1-17和缺氧池排泥管1-18连接污泥泵,需要污泥回流时,打开污泥泵,将其泥水回流至好氧池1-12。The sludge discharge pipe 1-17 of the secondary settling tank and the sludge discharge pipe 1-18 of the anoxic tank are connected to the sludge pump. When the sludge backflow is required, the sludge pump is turned on to return the muddy water to the aerobic tank 1-12.
所述斜体式氧化沟,其底板1-11设有支撑柱1-6;支撑柱1-6可折叠收起。The bottom plate 1-11 of the italic oxidation ditch is provided with support columns 1-6; the support columns 1-6 can be folded and stowed.
采用所述的斜体式氧化沟的污水处理方法,其步骤为:Adopt the sewage treatment method of described italic type oxidation ditch, its step is:
(1)污水由进水管1-5进入斜体式氧化沟内,在转刷曝气机1-1、1-2的搅拌下,泥水充分混匀;(1) The sewage enters the italic oxidation ditch from the water inlet pipe 1-5, and the muddy water is fully mixed under the agitation of the rotary brush aerator 1-1 and 1-2;
(2)在倾斜底板1-11的重力流和转刷曝气机1-1、1-2的推动力共同作用下,处理污水以先是由左至右,再由上至下折流的方式依次流经好氧池1-12,兼氧池1-13,厌氧池1-14,缺氧池1-15,二沉池1-9和清水池1-10;(2) Under the joint action of the gravity flow of the inclined bottom plate 1-11 and the driving force of the rotary brush aerator 1-1, 1-2, the sewage is treated firstly from left to right, and then from top to bottom. Flow through aerobic pool 1-12, facultative pool 1-13, anaerobic pool 1-14, anoxic pool 1-15, secondary sedimentation pool 1-9 and clear water pool 1-10;
(3)以回流的方式,处理污水循环通过好氧池1-12,兼氧池1-13,厌氧池1-14和缺氧池1-15,通过硝化和反硝化以及排泥,达到脱氮目的,同时COD、BOD均得到大幅度降解;(3) In the way of reflux, the treated sewage circulates through aerobic pool 1-12, facultative pool 1-13, anaerobic pool 1-14 and anoxic pool 1-15, through nitrification, denitrification and sludge discharge, to achieve The purpose of nitrogen removal, while COD and BOD are greatly degraded;
(4)通过检测出水水质指标,确定污泥龄,然后通过缺氧池排泥管1-18和二沉池排泥管1-17适时排泥,从而达到除磷效果。(4) Determine the sludge age by detecting the water quality index, and then timely discharge the sludge through the sludge discharge pipe 1-18 of the anoxic tank and the sludge discharge pipe 1-17 of the secondary sedimentation tank, so as to achieve the effect of phosphorus removal.
以上对本发明的一个实施例进行了详细说明,但所述内容仅为本发明的较佳实施例,不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等,均应仍归属于本发明的专利涵盖范围之内。An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.
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