CN109694130B - A device for realizing sludge suspension and avoiding sludge loss and its application method - Google Patents
A device for realizing sludge suspension and avoiding sludge loss and its application method Download PDFInfo
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- 239000010802 sludge Substances 0.000 title claims abstract description 79
- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 139
- 238000010992 reflux Methods 0.000 claims abstract description 24
- 244000005700 microbiome Species 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 22
- 238000004062 sedimentation Methods 0.000 claims description 17
- 238000005273 aeration Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 8
- 235000015097 nutrients Nutrition 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 4
- 239000012895 dilution Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 89
- 238000005469 granulation Methods 0.000 description 13
- 230000003179 granulation Effects 0.000 description 13
- 230000001651 autotrophic effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
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- 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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
技术领域technical field
本发明涉及废水处理技术领域，特别是涉及一种实现污泥悬浮和避免污泥流失的装置及其使用方法。The invention relates to the technical field of wastewater treatment, in particular to a device for realizing sludge suspension and avoiding sludge loss and a use method thereof.
背景技术Background technique
污水的生化处理一直被认为是最为经济的处理方式。实现污水中污染物高效处理的关键就是在特定的环境下实现反应器单位体积中相关功能微生物的高效富集。污泥颗粒化一直被认为是实现污泥高效富集的方法之一。近年来，围绕污泥颗粒化形成过程和机理的研究从未间断。然而很多研究者发现，在促使产气微生物污泥颗粒化和富集培养的反应器中，常常发生污泥颗粒化不规则而导致固气不能有效分离，进而促使污泥在沉淀区上浮的问题十分严重。相对于生长缓慢的自养微生物，污泥的流失量常常大于系统的产生量，常常导致反应器内微生物难以富集，甚至启动失败，例如自养反硝化污泥，厌氧氨氧化污泥的颗粒化和富集培养。因此如何实现污泥颗粒化，促使固气分离，增强反应器的截留能力一直是研究者及工程应用过程中迫切需要解决的问题。Biochemical treatment of sewage has always been considered the most economical treatment. The key to realize the efficient treatment of pollutants in sewage is to realize the efficient enrichment of relevant functional microorganisms in the unit volume of the reactor under a specific environment. Sludge granulation has always been considered as one of the methods to achieve high-efficiency enrichment of sludge. In recent years, research on the formation process and mechanism of sludge granulation has never stopped. However, many researchers have found that in the reactors that promote the granulation and enrichment of aerobic microbial sludge, the irregular granulation of sludge often occurs, which leads to the ineffective separation of solid and gas, and then promotes the sludge to float in the sedimentation zone. Very serious. Compared with the slow-growing autotrophic microorganisms, the loss of sludge is often greater than the production of the system, which often makes it difficult to enrich the microorganisms in the reactor, and even fails to start, such as autotrophic denitrification sludge and anaerobic ammonium oxidation sludge. Granulation and enrichment culture. Therefore, how to achieve sludge granulation, promote solid-gas separation, and enhance the interception capacity of the reactor has always been an urgent problem to be solved in the process of researchers and engineering applications.
在促使污泥颗粒化的过程中，当前所开发的反应器主要是依赖机械搅拌或者通过机械回流液体，促使反应器区污泥处于悬浮状态并与营养液充分混合。很少有研究者通过气体促使污泥悬浮并与营养液混合，即使有也大多采用额外的气体，例如空气，氮气等实现，很少有利用微生物自身产生的气体作为介质。关于反应器内污泥截留问题，当前多采用多次沉淀、膜分离或者在反应器顶部设置旋转分离器的方式进行颗粒污泥截留，尚未发现采用微生物自身产生的气体作为动力和介质，使沉淀区发生扰动，促使固气分离而实现污泥截留。针对进水质浓度高和波动大易导致污泥不规则颗粒化的问题，采用回流泵将出水回流稀释进水一直是研究者及工程应用者的首选，很少有利用微生物自身产生的气体作为动力实现出水回流稀释进水的反应器开发。因此在污泥颗粒化培养过程中，如何简化装置，减少设备需求和额外的动力消耗，同时还能够实现污泥高效截留的新型装置还需要进一步的研发。In the process of promoting sludge granulation, the currently developed reactors mainly rely on mechanical agitation or mechanical backflow of liquid, so that the sludge in the reactor area is suspended and fully mixed with the nutrient solution. Few researchers use gas to suspend sludge and mix it with nutrient solution. Even if there are, most of them use additional gas, such as air, nitrogen, etc., and few use the gas produced by microorganisms themselves as the medium. Regarding the problem of sludge interception in the reactor, at present, multiple sedimentation, membrane separation, or setting a rotary separator on the top of the reactor are used to intercept the granular sludge. It has not been found that the gas produced by the microorganism itself is used as the power and medium to make the sedimentation Disturbance occurs in the zone, which promotes the separation of solid and gas to achieve sludge retention. Aiming at the problem of high influent concentration and large fluctuations that easily lead to irregular granulation of sludge, using a reflux pump to return the effluent to dilute the influent has always been the first choice for researchers and engineering applications. Few of them use the gas produced by microorganisms themselves as power Realize the development of reactors that reflux the effluent to dilute the influent. Therefore, in the process of sludge granulation cultivation, how to simplify the device, reduce equipment requirements and additional power consumption, and at the same time, a new device that can achieve efficient sludge retention requires further research and development.
发明内容Contents of the invention
本发明的目的是提供一种实现污泥悬浮和避免污泥流失的装置及其使用方法，以解决上述现有技术存在的问题，具有结构简单、设备少，动力需求低，易于控制和有效截留颗粒污泥的特点。The object of the present invention is to provide a device for realizing sludge suspension and avoiding sludge loss and its use method, so as to solve the problems in the above-mentioned prior art, which has the advantages of simple structure, less equipment, low power demand, easy control and effective interception Characteristics of granular sludge.
为实现上述目的，本发明提供了如下方案：本发明提供一种实现污泥悬浮和避免污泥流失的装置，包括反应器本体、出水控制部分和多回路气体利用部分，In order to achieve the above object, the present invention provides the following scheme: the present invention provides a device for realizing sludge suspension and avoiding sludge loss, including a reactor body, a water outlet control part and a multi-loop gas utilization part,
所述反应器本体包括进水廊道、反应器、三相分离器和出水口，进水口与所述进水廊道相连，所述进水廊道的底端与所述反应器相连通，所述三相分离器位于所述反应器内反应区的上部，所述反应器的顶部与所述出水口相连通；The reactor body includes a water inlet gallery, a reactor, a three-phase separator and a water outlet, the water inlet is connected to the water inlet gallery, and the bottom end of the water inlet gallery is connected to the reactor, The three-phase separator is located at the upper part of the reaction zone in the reactor, and the top of the reactor communicates with the water outlet;
所述出水控制部分设置于所述反应器的顶部并与所述出水口相串联；The water outlet control part is arranged on the top of the reactor and connected in series with the water outlet;
所述多回路气体利用部分包括气体搅拌系统、气提回流系统和气体扰动系统，三个系统分别与所述反应器和进水廊道相连通实现污泥悬浮和避免污泥流失。The multi-loop gas utilization part includes a gas stirring system, a gas lift reflux system and a gas disturbance system, and the three systems are respectively connected with the reactor and the water inlet corridor to realize sludge suspension and avoid sludge loss.
优选的，所述反应器本体为圆柱形或方形，所述进水廊道位于所述反应器的外周身或者一侧，所述进水廊道顶部设置有盖板，底部与所述反应区连通。Preferably, the reactor body is cylindrical or square, the water inlet corridor is located on the outer circumference or one side of the reactor, the top of the water inlet corridor is provided with a cover plate, and the bottom is connected to the reaction zone. connected.
优选的，所述三相分离器包括喇叭形的气体收集罩和位于所述气体收集罩底端两侧的导流板。Preferably, the three-phase separator includes a horn-shaped gas collection hood and deflectors located on both sides of the bottom end of the gas collection hood.
优选的，所述反应器的上方位于所述气体收集罩的顶部外侧设置有淹没式出水堰，所述淹没式出水堰的周身含有等高的出水孔。Preferably, a submerged outlet weir is provided above the reactor outside the top of the gas collection hood, and the submerged outlet weir has water outlet holes of equal height around the body.
优选的，所述出水控制系统包括液位浮球和出水阀，所述喇叭形的气体收集罩的喇叭口处设置有上下穿孔挡板，所述液位浮球位于上下两个穿孔挡板之间并通过牵引绳与设置于所述出水口处的所述出水阀相连。Preferably, the water outlet control system includes a liquid level float and a water outlet valve, the bell mouth of the horn-shaped gas collection cover is provided with upper and lower perforated baffles, and the liquid level float is located between the upper and lower perforated baffles and connected with the water outlet valve arranged at the water outlet through a traction rope.
优选的，所述气体搅拌系统包括第一导气管、气体回流泵和曝气盘，所述曝气盘设置于所述反应器的内侧底部，所述第一导气管的一端以及所述曝气盘均与所述气体回流泵相连，所述第一导气管的另一端与所述气体收集罩的顶部相连。Preferably, the gas stirring system includes a first air duct, a gas reflux pump and an aeration pan, the aeration pan is arranged at the inner bottom of the reactor, one end of the first air duct and the aeration pan The disks are all connected with the gas return pump, and the other end of the first air guiding pipe is connected with the top of the gas collection cover.
优选的，所述气提回流系统包括出水回流管和第二导气管，所述出水回流管的一端与位于所述反应器顶部的沉淀区连接，另一端与所述进水廊道相连；所述第二导气管的一端与所述气体收集罩的顶部以及所述气体回流泵的前端相连，另一端与所述进水廊道内的所述出水回流管相连。Preferably, the air lift return system includes a water outlet return pipe and a second air guide pipe, one end of the water outlet return pipe is connected to the precipitation area at the top of the reactor, and the other end is connected to the water inlet corridor; One end of the second air duct is connected to the top of the gas collection cover and the front end of the gas return pump, and the other end is connected to the water outlet return pipe in the water inlet gallery.
优选的，所述气体扰动系统包括第三导气管和穿孔管，所述第三导气管的一端与所述进水廊道的顶部相连，另一端与位于所述沉淀区中的所述穿孔管相连。Preferably, the gas disturbance system includes a third air duct and a perforated pipe, one end of the third air duct is connected to the top of the water inlet gallery, and the other end is connected to the perforated pipe located in the sedimentation zone. connected.
优选的，所述穿孔管均布于所述沉淀区的表面。Preferably, the perforated pipes are evenly distributed on the surface of the precipitation zone.
本发明还提供一种实现污泥悬浮和避免污泥流失的方法，应用于上述的实现污泥悬浮和避免污泥流失的装置，包括以下步骤：The present invention also provides a method for realizing sludge suspension and avoiding sludge loss, which is applied to the above-mentioned device for realizing sludge suspension and avoiding sludge loss, including the following steps:
将含有微生物的活性污泥接种于反应器内，从进水廊道进入营养液，给与微生物生长所需要的温度，DO，pH等环境，微生物在反应区产生的气体收集于三相分离器的喇叭口内；Inoculate the activated sludge containing microorganisms into the reactor, enter the nutrient solution from the water inlet corridor, give the environment required for the growth of microorganisms such as temperature, DO, pH, etc., and collect the gas generated by the microorganisms in the reaction zone in the three-phase separator in the bell mouth;
通过气体搅拌系统的气体回流泵将所述三相分离器内收集的气体通过曝气盘再次鼓进好氧区，实现污泥的悬浮生长；Through the gas return pump of the gas stirring system, the gas collected in the three-phase separator is blown into the aerobic zone again through the aeration plate, so as to realize the suspended growth of sludge;
同时气提回流系统利用所述三项分离器喇叭口内的气提将出水回流管内的液体气提入所述进水廊道，实现进水廊道内水质的稀释；At the same time, the air lift and return system utilizes the air lift in the bell mouth of the three separators to lift the liquid gas in the water outlet return pipe into the water inlet gallery, so as to realize the dilution of water quality in the water inlet gallery;
进水廊道上方收集气提后的气体，并且通过气体扰动系统，实现反应器沉淀区悬浮污泥的固气分离，最终气体在沉淀区上方排放；The air-lifted gas is collected above the water inlet corridor, and through the gas disturbance system, the solid-gas separation of the suspended sludge in the reactor sedimentation area is realized, and the final gas is discharged above the sedimentation area;
与此同时，所述三相分离器的喇叭口内因气体的不断收集和通过气提回流系统、气体扰动系统的排放，液位不断在上下挡板内上下浮动，使得出水阀的液位浮球也会出现上下浮动，通过牵引绳实现出水口开关的闭合，即当所述液位浮球靠近上档，出水阀打开，浮球靠近下档，出水阀关闭。At the same time, due to the continuous collection of gas in the bell mouth of the three-phase separator and the discharge through the air lift reflux system and the gas disturbance system, the liquid level is constantly floating up and down in the upper and lower baffles, so that the liquid level float of the outlet valve Also can occur to float up and down, realize the closing of water outlet switch by traction rope, promptly when described liquid level float is close to upper gear, water outlet valve is opened, and float is close to lower gear, water outlet valve is closed.
本发明相对于现有技术取得了以下技术效果：Compared with the prior art, the present invention has achieved the following technical effects:
本发明中的实现污泥悬浮和避免污泥流失的装置及其使用方法，实际上是一种基于气体扰动来实现污泥悬浮、颗粒化和避免其流失的装置和方法，利用微生物自身产生的气体作为泥水扰动的介质，实现底部泥水混合，同时利用多余的尾气作为动力，实现出水自回流稀释进水，同时将气体再次收集，对沉淀区漂浮污泥扰动，促使漂浮污泥固气分离后沉淀，增强三相分离器的分离效果，无需额外物质和动力消耗。创造出的环境不仅有利于污泥的颗粒化，同时有效避免污泥的流失，对以生长缓慢的自养微生物培养而言，加快了微生物的颗粒化富集，实现了微生物的有效截留，缩短反应器的启动时间。与现有具有机械搅拌、出水泵回流和膜截留的装置相比，减化了反应器构造，减少了设备的需求，更易于控制。The device and method for realizing sludge suspension and avoiding sludge loss in the present invention are actually a device and method for realizing sludge suspension, granulation and avoiding its loss based on gas disturbance. Gas is used as the muddy water disturbance medium to realize the mixing of muddy water at the bottom. At the same time, the excess tail gas is used as power to realize the self-reflux of the effluent to dilute the influent water. At the same time, the gas is collected again to disturb the floating sludge in the sedimentation area and promote the solid-gas separation of the floating sludge. Precipitation enhances the separation effect of the three-phase separator without additional material and power consumption. The environment created is not only conducive to the granulation of sludge, but also effectively avoids the loss of sludge. For the cultivation of slow-growing autotrophic microorganisms, it accelerates the granulation and enrichment of microorganisms, realizes the effective interception of microorganisms, and shortens the The start-up time of the reactor. Compared with the existing device with mechanical stirring, effluent pump backflow and membrane interception, the structure of the reactor is simplified, the demand for equipment is reduced, and the control is easier.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.
图1为实现污泥悬浮和避免污泥流失的装置的整体结构示意图；Fig. 1 is the overall structure schematic diagram of the device that realizes sludge suspension and avoids sludge loss;
其中，1反应器；2进水廊道；3进水口；4出水口；5三相分离器；6淹没式出水堰；7上下穿孔挡板；8液位浮球；9出水阀；10第一导气管；11气体回流泵；12曝气盘；13第二导气管；14出水回流管；15第三导气管；16穿孔管。Among them, 1 reactor; 2 water inlet corridor; 3 water inlet; 4 water outlet; 5 three-phase separator; 6 submerged water outlet weir; 7 upper and lower perforated baffles; 1 air guide pipe; 11 gas return pump; 12 aeration disc; 13 second air guide pipe; 14 water outlet return pipe; 15 third air guide pipe; 16 perforated pipe.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明的目的是提供一种实现污泥悬浮和避免污泥流失的装置及其使用方法，以解决上述现有技术存在的问题，具有结构简单、设备少，动力需求低，易于控制和有效截留颗粒污泥的特点。The object of the present invention is to provide a device for realizing sludge suspension and avoiding sludge loss and its use method, so as to solve the problems in the above-mentioned prior art, which has the advantages of simple structure, less equipment, low power demand, easy control and effective interception Characteristics of granular sludge.
基于此，本发明提供的实现污泥悬浮和避免污泥流失的装置，包括反应器本体、出水控制部分和多回路气体利用部分，反应器本体包括进水廊道、反应器、三相分离器和出水口，进水口与进水廊道相连，进水廊道的底端与反应器相连通，三相分离器位于反应器内反应区的上部，反应器的顶部与出水口相连通；出水控制部分设置于反应器的顶部并与出水口相串联；多回路气体利用部分包括气体搅拌系统、气提回流系统和气体扰动系统，三个系统分别与反应器和进水廊道相连通实现污泥悬浮和避免流失。Based on this, the device for realizing sludge suspension and avoiding sludge loss provided by the present invention includes a reactor body, a water outlet control part and a multi-loop gas utilization part, and the reactor body includes a water inlet gallery, a reactor, and a three-phase separator And the water outlet, the water inlet is connected with the water inlet corridor, the bottom of the water inlet corridor is connected with the reactor, the three-phase separator is located at the upper part of the reaction zone in the reactor, and the top of the reactor is connected with the water outlet; The control part is set on the top of the reactor and connected in series with the water outlet; the multi-loop gas utilization part includes a gas stirring system, a gas stripping reflux system and a gas disturbance system, and the three systems are respectively connected with the reactor and the water inlet corridor to realize the sewage Mud suspension and avoid runoff.
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
请参考图1，其中，图1为实现污泥悬浮和避免污泥流失的装置的整体结构示意图。Please refer to FIG. 1 , wherein FIG. 1 is a schematic diagram of the overall structure of a device for suspending sludge and preventing sludge loss.
如图1所示，本发明提供一种基于气体扰动实现颗粒污泥悬浮和避免流失的装置，包括反应器本体、出水控制系统和多回路气体利用系统，反应器本体包括进水廊道2、反应器1、三相分离器5、淹没式出水堰6和出水口4，出水控制部分包括液位浮球8和出水阀9，多回路气体利用部分包括气体搅拌系统，气提回流系统和气体扰动系统，进一步气体搅拌系统包括第一导气管10、气体回流泵11和曝气盘12，气提回流系统包括出水回流管14和第二导气管13，气体扰动系统包括第三导气管15和穿孔管16。As shown in Figure 1, the present invention provides a device for realizing the suspension of granular sludge and avoiding loss based on gas disturbance, including a reactor body, a water outlet control system and a multi-loop gas utilization system, and the reactor body includes a water inlet corridor 2, Reactor 1, three-phase separator 5, submerged water outlet weir 6 and water outlet 4, the water outlet control part includes liquid level float 8 and water outlet valve 9, the multi-circuit gas utilization part includes gas stirring system, gas lift reflux system and gas Disturbance system, further gas stirring system includes the first air guide pipe 10, gas return pump 11 and aeration pan 12, air lift return flow system includes outlet water return pipe 14 and second air guide pipe 13, gas disturbance system includes the third air guide pipe 15 and Perforated tube 16.
进一步地，反应器本体可以为圆柱形或方形；进水廊道2位于反应器1外周身或者一侧，进水廊道2为一个密闭空间，顶部有盖板，底部与反应区连通。Further, the reactor body can be cylindrical or square; the water inlet gallery 2 is located on the outer body or one side of the reactor 1, and the water inlet gallery 2 is a closed space with a cover plate on the top and a bottom connected to the reaction zone.
三相分离器5包括喇叭形的气体收集罩和导流板，导流板位于气体收集罩喇叭开口的底部两侧，导流板使得气体进入三项分离器的喇叭口里面。The three-phase separator 5 includes a trumpet-shaped gas collection cover and a deflector, the deflector is located on both sides of the bottom of the horn opening of the gas collection cover, and the deflector allows gas to enter the bell mouth of the three-phase separator.
淹没式出水堰6位于反应器1上方，周身含有等高的出水孔，水孔位于水面以下10～20cm。The submerged water outlet weir 6 is located above the reactor 1, and has water outlet holes of equal height around the body, and the water holes are located 10-20 cm below the water surface.
进一步地，出水控制部分的出水阀9位于出水口4，并用牵引绳与液位浮球8相连。液位浮球8位于气体收集罩内的上下穿孔挡板7之间，液位浮球8靠近上档，出水阀9打开，液位浮球8靠近下档，出水阀9关闭。Further, the water outlet valve 9 of the water outlet control part is located at the water outlet 4, and is connected with the liquid level float 8 by a traction rope. The liquid level float 8 is positioned between the upper and lower perforated baffles 7 in the gas collection cover, the liquid level float 8 is close to the upper gear, the water outlet valve 9 is opened, the liquid level float 8 is near the lower gear, and the water outlet valve 9 is closed.
进一步地，气体搅拌系统的曝气盘12位于反应器1底部，曝气数量依据反应器1底部大小而定。第一导气管10一端与气体收集罩顶端相连，另一端一端与气体回流泵11相连。Further, the aeration pan 12 of the gas stirring system is located at the bottom of the reactor 1, and the amount of aeration depends on the size of the bottom of the reactor 1. One end of the first air guiding pipe 10 is connected with the top end of the gas collection cover, and the other end is connected with the gas return pump 11 .
气提回流系统的出水回流管14一端与沉淀区连接，另一端一端与进水廊道2相连接(气提回流系统是专业技术人员常用的一种方法，气体方向向上，将回流管的水也会带出，水从管内出来后，会因重力落在进水廊道2，而气提收集在进水廊道2顶部收集)。第二导气管13一端与气体收集罩相连接，亦可与气体回流泵11前端相连，另一端与进水廊道2内出水回流管14相连接One end of the water outlet return pipe 14 of the air lift reflux system is connected with the sedimentation area, and the other end is connected with the water inlet corridor 2 (the air lift reflux system is a method commonly used by professional technicians, the direction of the gas is upward, and the water in the return pipe is Also can take out, after water comes out in pipe, can fall on water inlet gallery 2 because of gravity, and air lift collects and collects at the top of water inlet gallery 2). One end of the second air guide pipe 13 is connected to the gas collection cover, and can also be connected to the front end of the gas return pump 11, and the other end is connected to the water outlet return pipe 14 in the water inlet corridor 2
气体扰动系统中，第三导气管15一端与进水廊道2顶部相连，另一端与沉淀区中的穿孔管16相连；第三导气管15是将第二导气管13使用后，收集于进水廊道2的气体再次利用，气体经第三导气管15进入穿孔管16，然后出气。穿孔管16位于水面以下3～5cm或穿孔管16均匀布至于沉淀区表面。In the gas disturbance system, one end of the third air duct 15 is connected to the top of the water inlet corridor 2, and the other end is connected to the perforated pipe 16 in the sedimentation area; the third air duct 15 is collected in the inlet after the second air duct 13 is used. The gas in the water corridor 2 is reused, and the gas enters the perforated pipe 16 through the third air guide pipe 15, and then exits. The perforated pipe 16 is located 3-5 cm below the water surface or the perforated pipe 16 is evenly distributed on the surface of the sedimentation area.
本发明还提供一种基于气体扰动实现颗粒污泥悬浮和避免流失的方法，具体地为：The present invention also provides a method for realizing suspension of granular sludge and avoiding loss based on gas disturbance, specifically:
将含有微生物的活性污泥接种于反应器1内，从进水廊道2的进水口3进入营养液，给与微生物生长所需要的温度，DO，Ph等环境，微生物在反应区产生的气体收集于三相分离器5的喇叭口内；Inoculate the activated sludge containing microorganisms into the reactor 1, enter the nutrient solution from the water inlet 3 of the water inlet corridor 2, give the temperature required for the growth of microorganisms, DO, Ph and other environments, and the gas generated by the microorganisms in the reaction zone Collected in the bell mouth of three-phase separator 5;
通过气体搅拌系统的气体回流泵11将三相分离器5内收集的气体通过曝气盘12再次鼓进好氧区，实现污泥的悬浮生长；Through the gas return pump 11 of the gas stirring system, the gas collected in the three-phase separator 5 is blown into the aerobic zone again through the aeration plate 12, so as to realize the suspended growth of sludge;
同时气提回流系统利用三项分离器喇叭口内的气提将出水回流管14内的液体气提入进水廊道2，实现进水廊道2内水质的稀释；At the same time, the air lift return system uses the air lift in the bell mouth of the three-phase separator to lift the liquid gas in the water outlet return pipe 14 into the water inlet corridor 2, so as to realize the dilution of the water quality in the water inlet corridor 2;
进水廊道2上方收集气提后的气体，并且通过气体扰动系统，实现反应器1沉淀区悬浮污泥的固气分离，最终气体在沉淀区上方排放；The air-lifted gas is collected above the water inlet corridor 2, and the solid-gas separation of the suspended sludge in the sedimentation area of the reactor 1 is realized through the gas disturbance system, and finally the gas is discharged above the sedimentation area;
与此同时，三相分离器5的喇叭口内因气体的不断收集和通过气提回流系统、气体扰动系统的排放，液位不断在上下挡板内上下浮动，使得出水阀9的液位浮球8也会出现上下浮动，通过牵引绳实现出水口4开关的闭合，即当液位浮球8靠近上档，出水阀9打开，浮球靠近下档，出水阀9关闭。At the same time, due to the continuous collection of gas in the bell mouth of the three-phase separator 5 and the discharge through the air lift reflux system and the gas disturbance system, the liquid level is constantly floating up and down in the upper and lower baffles, making the liquid level float of the water outlet valve 9 8 also can appear to float up and down, realize the closure of water outlet 4 switches by traction rope, promptly when liquid level float 8 is close to upper gear, water outlet valve 9 is opened, and float is close to lower gear, water outlet valve 9 is closed.
该方法，将微生物自身产生的气体收集在气体收集罩内，利用气体搅拌系统中的气体回流泵11将集气罩内收集的气体回流至反应区，保证微生物与营养液的混合，促使污泥颗粒化，同时利用剩余尾气作为动力，通过气提回流系统将沉淀区出水回流至进水廊道2，实现对廊道内进水物质浓度的稀释。将气提后的尾气收集在进水廊道2上方，再次通过气提搅拌系统，对沉淀区的浮泥进行固气分离，促使污泥沉淀，强化三项分离器的三项分离功能。In this method, the gas produced by the microorganisms is collected in the gas collection hood, and the gas collected in the gas collection hood is returned to the reaction area by using the gas return pump 11 in the gas stirring system, so as to ensure the mixing of the microorganisms and the nutrient solution, and promote the sludge Granulation, while using the remaining tail gas as power, the effluent from the sedimentation area is returned to the water inlet corridor 2 through the air lift return system, so as to realize the dilution of the concentration of the water inlet in the corridor. The tail gas after airlift is collected above the water inlet corridor 2, and the floating mud in the sedimentation area is separated from solid and gas through the airlift stirring system again, so as to promote the sludge sedimentation and strengthen the three separation functions of the three separators.
本发明中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本发明的限制。In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.
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