CN102229460B - Method for inducing aerobic sludge to granulate by using sludge micropowder - Google Patents

Method for inducing aerobic sludge to granulate by using sludge micropowder Download PDF

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Publication number
CN102229460B
CN102229460B CN2011101410207A CN201110141020A CN102229460B CN 102229460 B CN102229460 B CN 102229460B CN 2011101410207 A CN2011101410207 A CN 2011101410207A CN 201110141020 A CN201110141020 A CN 201110141020A CN 102229460 B CN102229460 B CN 102229460B
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China
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sludge
micropowder
reactor
aerobic
mud
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CN2011101410207A
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Chinese (zh)
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CN102229460A (en
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李军
王丹君
陈涛
卓未龙
王志宏
倪永炯
韦甦
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浙江工业大学
浙江卓锦工程技术有限公司
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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
    • 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
    • Y02W10/20Sludge processing

Abstract

The invention provides a method for inducing aerobic sludge to granulate by using sludge micropowder. The method comprises the following steps of: preparing the sludge micropowder from the residual sludge in a sewage plant by utilizing a condensation nucleus mechanism; and throwing the sludge micropowder into an aerobic treatment tank or a reactor to induce to generate aerobic granular sludge. The method has the advantages that: 1) waste is changed into treasure, so secondary pollution of the sludge to the environment is eliminated and the sludge is utilized as a resource; 2) the sludge is a residual substance of active sludge and an additive for partial water treatment and has the characteristics similar to those of the active sludge, so the sewage treatment process is influenced a little; 3) the production cost of the sludge micropowder is low and the production process of the sludge micropowder is simple; and 4) in the aerobic granular sludge prepared by induction the ammonia nitrogen, the removal rate is basically maintained to be about 95 percent and the COD removal rate is about 90 percent; and compared with the common active sludge, the aerobic granular sludge has high settling property, wherein the settling speed is 20 to 24 m/h and the sludge volume index (SVI) can be reduced to below 40 mL/g.

Description

A kind of mud micro mist is induced Miniaturation method of aerobic sludge

(1) technical field

The present invention relates to a kind of mud micro mist and induce Miniaturation method of aerobic sludge.

(2) background technology

Aerobic Granular Sludge Technology is a kind of novel wastewater processing technology, because it has good settling property; High sludge concentration; Can bear high organic loading, load impact and toxic substance etc., therefore more and more receive people's concern in field of waste water treatment.The formation of aerobic particle mud is a complex process that comprises physics, chemistry and biological action, and this process can be regarded as under hydrodynamic condition, the organism clustering phenomena that the effect of microorganism self-retaining forms.Because operational condition, type of reactor, influent quality, cultivation purpose are different, the Formation Mechanism of Granular Sludge that Chinese scholars proposes on experimental study basis separately can not be annotated all Granular sludge formation situations.At present, Granular sludge formation mechanism mainly contains the outer polymer hypothesis of born of the same parents, self coagulation principle, thread fungus hypothesis and nucleus of condensation mechanism.

Nucleus of condensation mechanism is exactly that the formation of aerobic particle mud at first will have nucleus of condensation to come to provide the place for gathering and the growth of microorganism, these nucleus of condensation can be the larger suspended particles of quality in the water, can be anaerobism or the aerobic particle mud of inoculation, also can be the microbial film that forms on the reactor wall.Even can be thread fungus larger in seed sludge or the mixed solution.Inorganic granule wherein can with a small amount of electric charge, when this electric charge is positive charge, can adsorb the microorganisms such as a certain amount of bacterium under the effect of hydraulic shear; Organic granule wherein can the secretion extracellular polymeric under the hydraulic shear effect, improves the hydrophobicity of cell surface, reduces the cell surface Gibbs free energy, for cell-cell interaction and stick favourable condition is provided.Under reactor intermittent operation operating mode, control the operational conditions such as the suitable sedimentation degree of depth, water discharging time, larger particles is stayed in the reactor, thereby the microorganism that makes the nucleus of condensation and stick on it has sufficient time and nutriment to grow, and further stick more microorganism, form the irregular mud granule of profile, i.e. embryo's granule sludge.Embryo's granule sludge forms the aerobic particle mud with regular profile and solid 3-D solid structure gradually under the effect of hydraulic shear, after particle reaches certain size because the restriction of oxygen transfer and matrix mass transfer, particle size reached zero growth, the aerobic particle mud that form this moment are ripe aerobic particle mud.

The present invention utilizes sewage treatment plant residual mud micro mist to induce granular sludge as the nucleus of condensation in the aerobic particle mud forming process in conjunction with the formation mechanism of nucleus of condensation mechanism.Also waste sludge is carried out recycling treatment, obtain certain economic benefit.

(3) summary of the invention

The technological method that the purpose of this invention is to provide a kind of low cost, inducing culture granule sludge easy to operate, high efficiency.

The technical solution used in the present invention is:

A kind of mud micro mist is induced Miniaturation method of aerobic sludge, and described method comprises:

(1) get the excess sludge of sewage work, drying is crushed to 100~800 orders and obtains the mud micro mist; Described excess sludge refers to the excess sludge that sludge thickener is got rid of.

(2) get active sludge in the sewage disposal plant aeration tank, drop in the reactor with 800~1000mg/L left and right sides input amount; The granulating of described aerobic sludge also can directly be carried out in the aeration tank of sewage work; Described active sludge comprises microorganism and the organism that depends on and inorganics etc.

(3) after reactor elder generation sky exposed to the sun 2 days, step (1) mud micro mist is pressed 100mg/L left and right sides addition drop in the reactor;

(4) at 5~10kg/m 3Under the condition of high volumetric loading .d and biological hungry (refer to that carbon source exhausts in the water, bacterium enters the endogenous respiration stage), adopt the sewage take sodium-acetate as carbon source, water inlet moves under normal condition continuously; 5~10 days, in reactor, obtain aerobic granular sludge.

Preferably, reactor operational conditions setting time of repose is 1.5h in the described step (4), and aeration time is 2.5h, and the cycle of operation is 4h.

Beneficial effect of the present invention is mainly reflected in:

1) utilizes nucleus of condensation mechanism, adopt the excess sludge of Sewage Plant to make the mud micro mist, be fed in aerobic treatment pond or the reactor, induce the generation aerobic particle mud;

2) turn waste into wealth, eliminate mud to the secondary pollution of environment, so that the recycling sludge utilization;

3) mud itself is exactly the used additive of the residuals of active sludge and part water treatment, and its characteristic and active sludge character approach, and is little on the impact of sewage treatment process;

4) production cost of mud micro mist is low, production technique is simple;

5) induce the aerobic particle mud of preparation to have a lot of technical advantages than common active sludge, substantially remain on about 95% such as the clearance that adds the granule sludge ammonia nitrogen that micro mist forms by this experiment, the clearance of COD is about 90%, compared preferably settling property with ordinary activated sludge, settling velocity is 20~24m/h.

(4) description of drawings

Fig. 1 is embodiment 1 reactor used structural representation;

Fig. 2 is the mud photo of inoculation;

Fig. 3 cultivates 5 days mud granule photo after adding micro mist.

(5) embodiment

The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:

Embodiment 1:

Reactor usedly formed by sludge reaction district 1 and gas-liquid-solid three-phase separator 2 (comprising the settling region) two parts.Place an aerating apparatus in the bottom, the experimental installation structural representation is seen Fig. 1.

Granulating is cultivated:

(1) get the excess sludge of urban wastewater treatment firm, drying is crushed to 500 orders and obtains the mud micro mist;

(2) get active sludge (mud form photo is referring to Fig. 2) in the urban wastewater treatment firm aeration tank, drop in the reactor with 900mg/L left and right sides input amount;

(3) after reactor elder generation sky exposed to the sun 2 days, step (1) mud micro mist is pressed 100mg/L left and right sides addition drop in the reactor;

(4) at 8kg/m 3.d the high volumetric loading about and in advance under the biological starvation conditions adopts and is configured to COD as 1500mg/L, NH take sodium-acetate, ammonia chloride, potassium primary phosphate 4-N concentration is that 50mg/L, TP concentration are the sewage of 12.5mg/L, continuously water inlet operation; The setting time of repose is 1.5h, and aeration time is 2.5h, and the cycle of operation is 4h, moves about 5 days, can begin to take shape mud granule (referring to Fig. 3), and steady running is after 10 days, the SVI<40ml/g of granule sludge, and settling property is good.

As can be seen from Figures 2 and 3, add after the micro mist, the performance of active sludge has obtained very large improvement, and mud is granulating in the short period of time, and the mud micro mist that namely adds can effectively be induced aerobic sludge granulation.

The clearance that the present invention adds the granule sludge ammonia nitrogen of micro mist formation remains on about 95% substantially, the clearance of COD is about 90%, compared preferably settling property with ordinary activated sludge, settling velocity is 20~24m/h, and sludge volume index (SVI) drops to below the 40ml/g from the 120ml/g of seed sludge.

Claims (2)

1. a mud micro mist is induced Miniaturation method of aerobic sludge, and described method comprises:
(1) get the excess sludge of sewage work, drying is crushed to 100~800 orders and obtains the mud micro mist;
(2) get active sludge in the sewage disposal plant aeration tank, drop in the reactor with 800~1000mg/L input amount;
(3) after reactor elder generation sky exposed to the sun 1~2 day, step (1) mud micro mist is dropped in the reactor by 50~150mg/L addition;
(4) at 5~10kg/m 3.d under the high volumetric loading and biological starvation conditions, adopt the sewage take sodium-acetate as carbon source, the water inlet operation obtained aerobic granular sludge after 5~10 days in reactor continuously.
2. the method for claim 1, it is characterized in that step (4) reactor operational conditions is: time of repose is 1.5h, and aeration time is 2.5h, and the cycle of operation is 4h.
CN2011101410207A 2011-05-27 2011-05-27 Method for inducing aerobic sludge to granulate by using sludge micropowder CN102229460B (en)

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CN103553288B (en) * 2013-11-21 2015-01-14 武汉森泰环保工程有限公司 Method for preparing water treatment biological activity accelerant from winery wastewater treatment sludge
CN103708688B (en) * 2013-12-10 2015-11-25 浙江工业大学 A kind of crystal micro-powder promotes the method for aerobic sludge granulation
CN103936245B (en) * 2014-02-28 2016-06-22 浙江工业大学 A kind of granular sludge for improving dewatering performance of sludge processes technique
CN105731636A (en) * 2014-12-11 2016-07-06 中国矿业大学 Method for rapidly cultivating aerobic granular sludge
CN105858871A (en) * 2015-01-22 2016-08-17 中国矿业大学 Process for rapid primary granulation of sludge
CN105502641B (en) * 2015-12-03 2018-07-17 中矿(天津)岩矿检测有限公司 A kind of method of inhibitory activity sludge bulking
CN106145328A (en) * 2016-08-02 2016-11-23 浙江工业大学 A kind of method utilizing alum sludge to promote aerobic sludge granulation
CN106145327A (en) * 2016-08-02 2016-11-23 浙江工业大学 A kind of promote aerobic particle mud to be formed and stable compound feed intake and preparation method thereof
CN106219740B (en) * 2016-08-11 2019-07-30 浙江工业大学 A method of film blocking and dephosphorization in MBR reactor are reduced using alum sludge
CN106167340B (en) * 2016-08-22 2020-05-05 浙江工业大学 AAO continuous flow aerobic granular sludge nitrogen and phosphorus removal process and system
CN106809948A (en) * 2016-12-14 2017-06-09 浙江工业大学 A kind of method that utilization excess sludge feedback mechanism promotes aerobic sludge granulation
CN107043170A (en) * 2017-04-18 2017-08-15 中国矿业大学 One kind traps CO in aerobic water treatment procedure2Method
CN109231444A (en) * 2018-09-27 2019-01-18 华南师范大学 A kind of calcification anaerobic grain sludge secondary nucleation reuse method and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101759289A (en) * 2010-01-15 2010-06-30 杨国靖 Method for culturing aerobic granular sludge for treating biological nutrients in municipal sewage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101759289A (en) * 2010-01-15 2010-06-30 杨国靖 Method for culturing aerobic granular sludge for treating biological nutrients in municipal sewage

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
周延年等.无基质匮乏条件下好氧污泥颗粒化的研究.《中国给水排水》.2010,第26卷(第9期),第97-99页. *
张露思等.活性炭载体对颗粒污泥形成及产氢的影响.《哈尔滨工程大学学报》.2010,第31卷(第11期),第1544-1548页. *
高霞红等.好氧颗粒污泥培养方法及其厌氧化研究.《化工时刊》.2005,第19卷(第05期),第18-21页. *

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Address after: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 18

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Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 18

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Patentee before: Zhejiang Zone King Engineering Technology Co., Ltd.

Address after: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 18

Patentee after: Zhejiang University of Technology

Patentee after: Zhejiang Zhuo Jin environmental protection Science and Technology Co., Ltd.

Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 18

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