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CN104724819A - Control device for solving problem of foam stacking in process of aerobic biological treatment of wastewater - Google Patents

Control device for solving problem of foam stacking in process of aerobic biological treatment of wastewater Download PDF

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Publication number
CN104724819A
CN104724819A CN201510141310.XA CN201510141310A CN104724819A CN 104724819 A CN104724819 A CN 104724819A CN 201510141310 A CN201510141310 A CN 201510141310A CN 104724819 A CN104724819 A CN 104724819A
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CN
China
Prior art keywords
foam
stirring paddle
stirring
speed
aerobic
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Pending
Application number
CN201510141310.XA
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Chinese (zh)
Inventor
刘琳
游骐羽
刘超翔
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Institute of Urban Environment of CAS
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Institute of Urban Environment of CAS
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Priority to CN201510141310.XA priority Critical patent/CN104724819A/en
Publication of CN104724819A publication Critical patent/CN104724819A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Biological Treatment Of Waste Water (AREA)

Abstract

本发明提供可用于解决好氧生物过程大量泡沫堆积问题,整个装置包括一个增力电动搅拌器和一组搅拌浆。搅拌桨设置在距离装置内污废水液面5~10cm处,以方便处理堆积的泡沫。通过调节增力电动搅拌器的速度来控制搅拌桨,搅拌桨采用ABS树脂,抗冲击性强,绝缘性能好,对于长期处于水环境的浆叶来讲,ABS不受水、无机盐碱醇类及多种酸碱的影响,不会影响装置内好氧生物处理实验过程。搅拌桨连接在增力电动搅拌器上,转速由搅拌器控制,转速的大小调节可根据装置内泡沫堆积程度来设定,可人工调节,搅拌桨采用螺旋方式固定在增力电动搅拌器上,方便拆卸以清洗搅拌桨上长期附着的悬浮物质或黏性物质。

The invention can be used to solve the problem of a large amount of foam accumulation in the aerobic biological process, and the whole device includes a booster electric stirrer and a group of stirring paddles. The stirring paddle is set at a distance of 5-10cm from the liquid surface of sewage and wastewater in the device to facilitate the treatment of accumulated foam. The agitator is controlled by adjusting the speed of the booster electric agitator. The agitator is made of ABS resin, which has strong impact resistance and good insulation performance. For the blades that have been in the water environment for a long time, ABS is not affected by water, inorganic salts, alkalis, and alcohols. And the influence of various acids and bases, it will not affect the experimental process of aerobic biological treatment in the device. The stirring paddle is connected to the booster electric stirrer, and the speed is controlled by the stirrer. The speed adjustment can be set according to the degree of foam accumulation in the device, and can be adjusted manually. The stirring paddle is fixed on the booster electric stirrer in a spiral manner. It is easy to disassemble to clean the suspended matter or sticky matter attached to the stirring paddle for a long time.

Description

一种解决废水好氧生物处理过程泡沫堆积问题的控制装置A control device for solving the problem of foam accumulation in wastewater aerobic biological treatment process

技术领域 technical field

发明发明可用于解决好氧生物处理过程中产生的泡沫堆积问题,属于工业控制领域。 The invention can be used to solve the foam accumulation problem generated in the aerobic biological treatment process, and belongs to the field of industrial control.

背景技术 Background technique

好氧生物处理工艺是处理污、废水常采用的方法之一。好氧处理工艺是在污水中含有充分溶解氧的前提下,采用机械曝气或自然曝气为污水中好氧微生物(包括兼性微生物)提供活动能源,使其能正常进行生物代谢以降解有机物,并达到稳定、无害化的处理方法。微生物利用水中已存在的溶解性和胶体状的有机污染物作为底物进行好氧代谢,并将污水中有机污染物一部分转变为二氧化碳、水等无机物,另一部分合成为细胞物质,之后将微生物与污水分离,从而达到净化污水的作用。 Aerobic biological treatment process is one of the commonly used methods for treating sewage and wastewater. The aerobic treatment process is to use mechanical aeration or natural aeration to provide active energy for aerobic microorganisms (including facultative microorganisms) in the sewage under the premise that the sewage contains sufficient dissolved oxygen, so that they can perform normal biological metabolism to degrade organic matter. , and achieve a stable and harmless treatment method. Microorganisms use the existing dissolved and colloidal organic pollutants in the water as substrates for aerobic metabolism, and convert part of the organic pollutants in the sewage into inorganic substances such as carbon dioxide and water, and synthesize the other part into cellular substances. Separation from sewage, so as to achieve the role of sewage purification.

    污水处理过程的曝气阶段中,随着装置的运行时间推移,生物泡沫的产生不可避免,大量泡沫堆积在废水表层,对于需要充分溶解氧作为生物能源的好好氧微生物来讲是极大的威胁,由于泡沫粘性极强,大量的好氧微生物(包括兼性微生物)会附着在泡沫内部或表面,这部分微生物实际并未参见整个好氧生物处理过程。目前研究普遍认为丝状微生物异常增殖引起的丝状菌污泥膨胀是生物泡沫产生的主要原因,而对此采取的常用措施是一些物理的或化学的方法来解决,例如喷洒水、投加消泡剂、药物杀菌等,但此类方法并不适用于实验室小试,且在实际工业应用上,这类方法不仅耗费财力人力,效果也不尽好反而影响整个好氧生物处理工艺的效率。所以开发一套小型的增力电动搅拌装置,采用搅拌桨的形式,可以很大程度减少泡沫堆积的问题,使得污水中有充分的溶解氧,且在搅拌过程中,泡沫会随着搅拌桨黏附于装置的内壁上,而附着于泡沫上的微生物会逐渐增多,随后因重力的原因重新回到污水中,部分泡沫及微生物可能会粘附在搅拌桨,对此只需定时定期采用清水清洗搅拌浆即可,对于实验室小试可以直接拆卸搅拌桨进行清洗,既便于人工操作也不会消耗大量的药品同时很大程度的提高了污水处理的质量。 In the aeration stage of the sewage treatment process, with the passage of the operation time of the device, the generation of biological foam is inevitable, and a large amount of foam accumulates on the surface of the wastewater, which is a great threat to the aerobic microorganisms that need fully dissolved oxygen as a biological energy source , due to the strong viscosity of the foam, a large number of aerobic microorganisms (including facultative microorganisms) will adhere to the inside or surface of the foam, and these microorganisms do not actually participate in the entire aerobic biological treatment process. Current studies generally believe that the expansion of filamentous bacteria sludge caused by the abnormal proliferation of filamentous microorganisms is the main cause of biofoam, and the common measures taken are some physical or chemical methods to solve this problem, such as spraying water, dosing and disinfecting, etc. Foaming agents, drug sterilization, etc., but such methods are not suitable for small laboratory tests, and in actual industrial applications, such methods not only consume financial resources and manpower, but the effect is not good, but affects the efficiency of the entire aerobic biological treatment process . Therefore, the development of a small booster electric stirring device, in the form of a stirring paddle, can greatly reduce the problem of foam accumulation, so that there is sufficient dissolved oxygen in the sewage, and during the stirring process, the foam will adhere to the paddle On the inner wall of the device, the microorganisms attached to the foam will gradually increase, and then return to the sewage due to gravity, part of the foam and microorganisms may adhere to the stirring paddle, for which it is only necessary to regularly clean and stir with clean water The paddle is enough, and the stirring paddle can be directly disassembled for cleaning in the small laboratory test, which is convenient for manual operation and does not consume a lot of medicines, and at the same time greatly improves the quality of sewage treatment.

发明内容 Contents of the invention

发明的目的在于提供一种简单快捷的方式以解决泡沫堆积问题的装置。 The object of the present invention is to provide a device which solves the problem of foam accumulation in a simple and quick way.

发明发明是一种可用于好氧生物处理过程中实时处理泡沫问题的装置,包括:一个增力电动搅拌器、一组搅拌桨和一个配套调速仪,通过与增力电动搅拌器配套的调速仪来调节连接在搅拌器上的搅拌桨。一般情况下,反应器内产生的泡沫具有恒定性,如若出现堆积泡沫的大幅度变化,搅拌桨的转速可根据装置内泡沫堆积程度的大小来进行人工调解,以满足实际要求。在实际应用中,搅拌桨只需定时定期采用清水清洗即可,对于实验室小试,桨片可以直接拆卸进行清洗,操作简单,节省财力物力同时达到了污水处理的目的,实现对泡沫堆积问题的实时处理。 The present invention is a device that can be used for real-time processing of foam problems in the process of aerobic biological treatment. The speed controller is used to adjust the stirring paddle connected to the stirrer. In general, the foam generated in the reactor is constant. If there is a large change in the accumulation of foam, the rotation speed of the stirring paddle can be adjusted manually according to the degree of foam accumulation in the device to meet the actual requirements. In practical applications, the stirring paddles only need to be cleaned regularly with clean water. For small laboratory tests, the paddles can be directly disassembled for cleaning, which is easy to operate, saves financial and material resources, and achieves the purpose of sewage treatment and solves the problem of foam accumulation. real-time processing.

附图说明 Description of drawings

图1为本发明实施例的结构组成示意 FIG. 1 is a schematic diagram of the structural composition of an embodiment of the present invention .

图2为本发明实施例的电路组成示意 FIG. 2 is a schematic diagram of circuit composition of an embodiment of the present invention .

其中: 1、转速控制器; 2、增力电动搅拌器; 3、搅拌桨; 4、反应罐; 5、自动断电器。 Among them: 1. Speed controller; 2. Booster electric agitator; 3. Stirring paddle; 4. Reaction tank; 5. Automatic power-off device.

具体实施方式 Detailed ways

以下结合具体实施例和附图对本发明作进一步说明。 The present invention will be further described below in conjunction with specific embodiments and accompanying drawings .

如图1和2所示,搅拌桨2设置在具体液面5~10cm高度,在进行好氧生物处理时,增力电动搅拌器2上的搅拌桨3以一定转速搅拌因反应过程堆积的泡沫。搅拌桨2的速度由转速控制器1调节,其转速的大小以实际堆积泡沫的程度而定。所有器件的控制都连接在自动断电器上,可实时进行各个器件的控制。 As shown in Figures 1 and 2, the stirring paddle 2 is set at a height of 5 to 10 cm of the specific liquid surface. When carrying out aerobic biological treatment, the stirring paddle 3 on the booster electric stirrer 2 stirs the foam accumulated due to the reaction process at a certain speed . The speed of the stirring paddle 2 is regulated by the rotational speed controller 1, and the size of the rotational speed depends on the actual accumulation of foam. The control of all devices is connected to the automatic breaker, which can control each device in real time.

Claims (4)

1. the foam that can be used for producing when solving Aerobic biological process piles up the device of problem, it is characterized in that device comprises a reinforcement electric mixer, a supporting velometer, one group of stirring arm, the stirring rake be connected on magnetic stirring apparatus is regulated by velometer, its speed is piled up degree according to foam in plant running process and determines, and making it maintain only has a small amount of foam to deposit in case.
2. can be used for the foam processed in aerobic bioprocess as claimed in claim 1 and pile up problem, it is characterized in that the cooperation by reinforcement electric mixer and stirring rake, control stirring rake by regulating the speed of reinforcement electric mixer and reached minimizing foam.
3. can be used for the foam processed in aerobic bioprocess as claimed in claim 1 and pile up problem, it is characterized in that stirring rake adopts ABS plastic, for the paddle being in water surrounding for a long time, ABS is not by the impact of water, inorganic salt, alkali alcohols and multiple soda acid.
4. can be used for the foam processed in aerobic bioprocess as claimed in claim 1 and pile up problem, its feature is any surface at the device that this stirring rake can be suitable for is circular or foursquare device.
CN201510141310.XA 2015-03-30 2015-03-30 Control device for solving problem of foam stacking in process of aerobic biological treatment of wastewater Pending CN104724819A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112537762A (en) * 2020-12-22 2021-03-23 中北大学 Refining and dispersing method of battery positive electrode material

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301291B2 (en) * 1975-02-21 1977-10-21 Robin Sa
JPS6154213A (en) * 1984-08-23 1986-03-18 Hitachi Kiden Kogyo Ltd Defoaming method and apparatus therefor
CN2300439Y (en) * 1997-06-12 1998-12-16 嘉兴市民丰机电设备工程公司 Foam eliminator
CN101084165A (en) * 2004-11-22 2007-12-05 水系统国际股份有限公司 Device to treat liquid and foam
CN101337738A (en) * 2008-08-29 2009-01-07 清华大学 A method for removing biological foam in activated sludge sewage treatment process
CN102145933A (en) * 2011-02-22 2011-08-10 南京贝特环保通用设备制造有限公司 Pulse type foam-absorbing machine
CN102276057A (en) * 2011-07-07 2011-12-14 江苏高朗环境技术有限公司 Accurate aeration and combined defoaming technological scheme for waste leachate treatment
CN202492407U (en) * 2012-02-23 2012-10-17 上海申兰环保有限公司 Foam removing device
CN103011419A (en) * 2012-12-03 2013-04-03 北京工业大学 Method for rapidly solving problem of filamentous bacteria sludge bulking through hunger treatment
CN103011392A (en) * 2012-12-18 2013-04-03 西安建筑科技大学 Method for improving precipitation performance of filamentous bulking sludge
CN203095713U (en) * 2013-01-04 2013-07-31 上海友联竹园第一污水处理投资发展有限公司 Horizontal type defoamer

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301291B2 (en) * 1975-02-21 1977-10-21 Robin Sa
JPS6154213A (en) * 1984-08-23 1986-03-18 Hitachi Kiden Kogyo Ltd Defoaming method and apparatus therefor
CN2300439Y (en) * 1997-06-12 1998-12-16 嘉兴市民丰机电设备工程公司 Foam eliminator
CN101084165A (en) * 2004-11-22 2007-12-05 水系统国际股份有限公司 Device to treat liquid and foam
CN101337738A (en) * 2008-08-29 2009-01-07 清华大学 A method for removing biological foam in activated sludge sewage treatment process
CN102145933A (en) * 2011-02-22 2011-08-10 南京贝特环保通用设备制造有限公司 Pulse type foam-absorbing machine
CN102276057A (en) * 2011-07-07 2011-12-14 江苏高朗环境技术有限公司 Accurate aeration and combined defoaming technological scheme for waste leachate treatment
CN202492407U (en) * 2012-02-23 2012-10-17 上海申兰环保有限公司 Foam removing device
CN103011419A (en) * 2012-12-03 2013-04-03 北京工业大学 Method for rapidly solving problem of filamentous bacteria sludge bulking through hunger treatment
CN103011392A (en) * 2012-12-18 2013-04-03 西安建筑科技大学 Method for improving precipitation performance of filamentous bulking sludge
CN203095713U (en) * 2013-01-04 2013-07-31 上海友联竹园第一污水处理投资发展有限公司 Horizontal type defoamer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112537762A (en) * 2020-12-22 2021-03-23 中北大学 Refining and dispersing method of battery positive electrode material

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