CN102249505B - Sludge fermentation apparatus which removes heavy metal ions - Google Patents

Sludge fermentation apparatus which removes heavy metal ions Download PDF

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Publication number
CN102249505B
CN102249505B CN2011101578265A CN201110157826A CN102249505B CN 102249505 B CN102249505 B CN 102249505B CN 2011101578265 A CN2011101578265 A CN 2011101578265A CN 201110157826 A CN201110157826 A CN 201110157826A CN 102249505 B CN102249505 B CN 102249505B
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sludge
pipe
tank body
layer
heavy
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CN102249505A (en
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宋应民
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Zhongshan Environmental Protection Industry Co., Ltd.
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ZHONGSHAN CITY ENVIRONMENTAL PROTECTION INDUSTRY DEVELOPMENT Co Ltd
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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
    • Y02W10/20Sludge processing

Abstract

The invention discloses a sludge fermentation apparatus which removes heavy metal ions. The apparatus comprises a cylinder body, a sludge inlet pipe arranged on the lower part of the cylinder, and a sludge outlet pipe arranged on the upper part of the cylinder. Multiple layers of spiral rotary channels are arranged in the cylinder. A sludge delivering pipe is arranged in each layer of spiral rotary channel. The central or peripheral outlet of each layer of spiral rotary channel communicates with the sludge delivering pipe. An outlet of each sludge delivering pipe communicates with a peripheral inlet of the upper layer of spiral rotary channel. The apparatus provided by the invention is advantaged in that: 1, a spiral structure is adopted, such that the moving path of sludge is long, and fermentation gradient is good; 2, the structure is compact, and equipment investment is low; 3, aeration is carried out in separated layers, residual air can be reused, utilization rate of oxygen is high, and energy consumption is low.

Description

But a kind of sludge fermentation device of heavy-metal ion removal
[technical field]
The present invention relates to sludge fermentation device, but specifically relate to a kind of sludge fermentation device of heavy-metal ion removal.
[background technology]
But there is following defective in the sludge fermentation device of existing heavy-metal ion removal: 1, the inefficiency of heavy-metal ion removal, heavy-metal ion removal need the time long so that mud is stacked is many; 2, level of automation is low, need a large amount of labor forces, and workload is large, and the expense that wastes time and energy is artificial; 3, ferment effect is poor, can not fully fermenting; 4, coefficient of oxygen utilization is very low, reacts not thorough.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of heavy-metal ion removal effective, efficient is high, and is simple in structure, and coefficient of oxygen utilization is high, and power consumption is few, and the fermentation gradient is good, full-automatic sludge fermentation device
The object of the present invention is achieved like this:
But a kind of sludge fermentation device of heavy-metal ion removal, it is characterized in that it comprises tank body 1, tank body 1 bottom is provided with into mud pipe 2, tank body 1 top is provided with sludge out pipe 3, be provided with multi-layer helical rotating channel 5 in the described tank body 1, every helical layer rotating channel 5 is provided with sludge pipe 6, and the middle part of every helical layer rotating channel 5 or peripheral outlet 51 communicate with sludge pipe 6, and the sludge pipe outlet 61 of sludge pipe 6 communicates with the peripheral entrance 52 of the spiral rotating passage 5 of last layer.
But the sludge fermentation device of aforesaid a kind of heavy-metal ion removal is characterized in that being communicated with inlet pipe 7 in every helical layer rotating channel 5, and inlet pipe 7 is provided with a plurality of micro porous aeration heads 71.
But the sludge fermentation device of aforesaid a kind of heavy-metal ion removal is characterized in that also being provided with on the tank body 1 escape pipe 8.
But the sludge fermentation device of aforesaid a kind of heavy-metal ion removal is characterized in that the top of sludge pipe 6 is provided with collection chamber 9, and the top, center of collection chamber 9 is provided with collection chamber escape pipe 73; The other end limit of inlet pipe 7 is connected with gas-liquid separator 72, and the bottom of gas-liquid separator 72 is connected to into mud pipe 2 by managing 74, and the middle part of gas-liquid separator 72 is connected to collection chamber escape pipe 73.
But the sludge fermentation device of aforesaid a kind of heavy-metal ion removal is characterized in that the other end of sludge out pipe 3 is connected with sludge dewatering equipment 11 by a pressurized sludge pump 10.
But the sludge fermentation device of aforesaid a kind of heavy-metal ion removal is characterized in that the other end of escape pipe 8 extend in the water-sealed tank 4, also is provided with tap water water inlet pipe 41 on the water-sealed tank 4, and tap water water inlet pipe 41 is provided with float valve 42.
The present invention has the following advantages:
1. spiral shell shape structure, the mud moving line is long, and the fermentation gradient is good.
2. compact construction, facility investment is few.
3. layering aeration, the residual air recycling, coefficient of oxygen utilization is high, and power consumption is few.
[description of drawings]
Figure l is structural representation of the present invention;
Fig. 2 is the structural representation of spiral rotating passage of the present invention;
Fig. 3 is vertical view of the present invention.
[embodiment]
But a kind of sludge fermentation device of heavy-metal ion removal, it comprises tank body 1, tank body 1 can be cylindrical shape, tank body 1 bottom is provided with into mud pipe 2, tank body 1 top is provided with sludge out pipe 3, is provided with multi-layer helical rotating channel 5 in the described tank body 1, and the middle part of every helical layer rotating channel 5 is provided with sludge pipe 6, the outlet 51 of every helical layer rotating channel 5 communicates with center sludge pipe 6, and the sludge pipe outlet 61 of sludge pipe 6 communicates with the peripheral entrance 52 of the spiral rotating passage 5 of last layer.This device is provided with multi-layer helical rotating channel 5, and every layer is spiral shell shape structure, the flow direction of mud be first by the outer ring of spiral shell equably each inner ring flow, flow to last layer in the center, again by the center along spiral shell to flowing to outmost turns, flow to last layer by outermost.And so forth, flow to the top of tank, overflow and going out always.
Be provided with inlet pipe 7 in every helical layer rotating channel 5, inlet pipe 7 is provided with a plurality of micro porous aeration heads 71, and the other end limit of inlet pipe 7 is connected with gas-liquid separator 72, and the bottom of gas-liquid separator 72 is connected to into mud pipe 2 by managing 74.The middle part of gas-liquid separator 72 is connected to collection chamber escape pipe 73.
Also be provided with escape pipe 8 on the tank body 1, the other end of escape pipe 8 extend in the water-sealed tank 4, also is provided with tap water water inlet pipe 41 on the water-sealed tank 4, and tap water water inlet pipe 41 is provided with float valve 42.
The top of sludge pipe 6 is provided with collection chamber 9.As shown in Figure 1, enclose in the collection chamber 9 and be higher than the periphery, make every layer gas accumulation to the top of collection chamber 9, the top, center of collection chamber 9 is provided with collection chamber escape pipe 73.
The other end of sludge out pipe 3 is connected with sludge dewatering equipment 11 by a pressurized sludge pump 10.
Every helical layer rotating channel 5, be furnished with micro porous aeration head 71, be provided with pointed collection chamber 9 at the top of this layer, air is passed to outside the tank by collection chamber escape pipe 73 after this collects, collection chamber escape pipe 73 passes into last layer after entering gas-liquid separator again, like this one passes straight through to top layer, drains into water-sealed tank 4 by escape pipe 8 at last, is discharged by water-sealed tank 4 tops again.Water seal can keep every helical layer rotating channel 5 that certain height is arranged, and water seal height is the collection chamber height.The water level of water seal is by the float valve 42 control Metacentre Heights on the water inlet pipe 41.
Because just having entered the mixed solution dissolved oxygen of the interior mud of tank body and bacterium is zero, be badly in need of a large amount of oxygen, and the air that has just entered in the tank body contains a large amount of oxygen, oxygen is effectively utilized behind the aeration, and aeration evenly is conducive to aerobic fermentation with sludge agitation simultaneously.Owing to being the spiral structure, flowing of mud can be flowed in approximate wide passage, and constant flow rate is avoided the dead angle.
Mud is after the reaction of one-level aerobic fermentation, advance the last layer reaction zone, although greatly reduce in the first layer reaction zone gas oxygen concentration out, because oxygen only spends 15%, also remain 85%, so this gas is introduced second layer reaction zone, because after the reaction of the first district, the oxygen requirement of mud reduces, oxygen in the gas residue is enough to keep the aerobic amount of Second Region, Second Region is identical with the first plot structure, and the atmospheric oxygen content in the effuser is also surplus, 85% * 85%=72.25%.So the one-level level is moved to the upper strata, so that coefficient of oxygen utilization is the highest, reacts the most thorough, during to top layer, reacts completely.
Mud is the heavy metal ion stripping behind fermentation finished thoroughly1, pumps into sludge dewatering equipment 11 by force (forcing) pump 10, and after the dehydration, the heavy metal ion in the mud is removed.

Claims (4)

1. but the sludge fermentation device of a heavy-metal ion removal, it is characterized in that it comprises tank body (1), tank body (1) bottom is provided with into mud pipe (2), tank body (1) top is provided with sludge out pipe (3), be provided with multi-layer helical rotating channel (5) in the described tank body (1), every helical layer rotating channel (5) is provided with sludge pipe (6), the middle part of every helical layer rotating channel (5) or peripheral outlet (51) communicate with sludge pipe (6), the sludge pipe outlet (61) of sludge pipe (6) communicates with middle part or the peripheral entrance (52) of the spiral rotating passage (5) of last layer, be communicated with inlet pipe (7) in every helical layer rotating channel (5), inlet pipe (7) is provided with a plurality of micro porous aeration heads (71), the top of sludge pipe (6) is provided with collection chamber (9), and the top, center of collection chamber (9) is provided with collection chamber escape pipe (73); The other end limit of inlet pipe (7) is connected with gas-liquid separator (72), and the bottom of gas-liquid separator (72) is connected to into mud pipe (2) by pipe (74), and the middle part of gas-liquid separator (72) is connected to collection chamber escape pipe (73).
2. but the sludge fermentation device of a kind of heavy-metal ion removal according to claim 1 is characterized in that also being provided with on the tank body (1) escape pipe (8).
3. but the sludge fermentation device of a kind of heavy-metal ion removal according to claim 1 is characterized in that the other end of sludge out pipe (3) is connected with sludge dewatering equipment (11) by a pressurized sludge pump (10).
4. but the sludge fermentation device of a kind of heavy-metal ion removal according to claim 1, the other end that it is characterized in that escape pipe (8) extend in the water-sealed tank (4), also be provided with tap water water inlet pipe (41) on the water-sealed tank (4), tap water water inlet pipe (41) is provided with float valve (42).
CN2011101578265A 2011-06-13 2011-06-13 Sludge fermentation apparatus which removes heavy metal ions Active CN102249505B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103301795A (en) * 2013-06-07 2013-09-18 苏州市金翔钛设备有限公司 Oxidation tank with good aerating effect
CN103482833B (en) * 2013-10-18 2015-01-21 无锡艾科瑞思产品设计与研究有限公司 Sludge fermentation device with spiral structure for removing heavy metal ions in water body
CN106732308A (en) * 2017-01-13 2017-05-31 浙江大学 A kind of micro- bubbling gas-liquid reactor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101708936A (en) * 2009-11-06 2010-05-19 海南福君生态环境科技有限公司 Method for treating sludge with heavy metals exceeding standard
CN201560162U (en) * 2009-10-27 2010-08-25 陆伯新 Heavy metal sludge processing apparatus
CN202131193U (en) * 2011-06-13 2012-02-01 中山市环保实业发展有限公司 Sludge fermentation device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5061404B2 (en) * 2000-05-30 2012-10-31 栗田工業株式会社 Treatment method of dry methane fermentation sludge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201560162U (en) * 2009-10-27 2010-08-25 陆伯新 Heavy metal sludge processing apparatus
CN101708936A (en) * 2009-11-06 2010-05-19 海南福君生态环境科技有限公司 Method for treating sludge with heavy metals exceeding standard
CN202131193U (en) * 2011-06-13 2012-02-01 中山市环保实业发展有限公司 Sludge fermentation device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2002-52398A 2002.02.19

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Address after: 528400 Guangdong city of Zhongshan province Sun Wendong road Hongxing first Gilbert building two floor

Patentee after: Zhongshan Environmental Protection Industry Co., Ltd.

Address before: 528400 Guangdong province Zhongshan Torch Development Zone Sun Wendong road Hongxing first Gilbert building two floor

Patentee before: ZHONGSHAN ENVIRONMENTAL PROTECTION INDUSTRY COMPANY LIMITED