CN201825803U - Coagulating sedimentation-reinforced sewage treatment device - Google Patents
Coagulating sedimentation-reinforced sewage treatment device Download PDFInfo
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- CN201825803U CN201825803U CN201020533361XU CN201020533361U CN201825803U CN 201825803 U CN201825803 U CN 201825803U CN 201020533361X U CN201020533361X U CN 201020533361XU CN 201020533361 U CN201020533361 U CN 201020533361U CN 201825803 U CN201825803 U CN 201825803U
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Abstract
The utility model relates to a water treatment device, in particular to a coagulating sedimentation-reinforced sewage treatment device in the water treatment device. The sewage treatment device with reinforced coagulating sedimentation comprises a first mixing basin, a second mixing basin, a flocculation basin and an inclined plate sedimentation basin which are arranged and connected according to water intake sequence, and also comprises a sludge return line, wherein one end of the sludge return line is connected with the inclined plate sedimentation basin, and the other end of the sludge return line is connected with the first mixing basin. The sewage treatment device with reinforced coagulating sedimentation has the beneficial effects of improving the efficiency of eliminating pollutants, reducing medicament consumption and lowering the output of sludge, so that the energy consumption of sewage treatment plants is reduced and the sewage treatment cost is lowered.
Description
Technical field
The utility model relates to water treatment device, relates in particular to the sedimentary waste disposal plant of a kind of enhanced coagulation in the water treatment device.
Background technology
Water is the precious resources that the mankind depend on for existence, however along with expanding economy, the increase of population, the quantity discharged of municipal effluent and trade effluent also is being on the increase.Because the hysteresis and the non-point source pollution control of sewage treatment facility are capable inadequately, China's water pollution problems is very serious.
Sewage water treatment method commonly used at present mainly is that physico-chemical process combines with biological process, and general forerunner as biological treatment is handled in materialization.Usually general city domestic sewage all need pass through to be handled through two stage biological after one-level processing or enhanced primary are handled again, and the coagulating sedimentation rule is the most frequently used enhanced primary treatment process.
Coagulant sedimentation has preferably except that SS, organic matter removal and phosphor-removing effect as the pre-treatment that enhanced primary is handled or two stage biological is handled, but because this coagulating sedimentation device exists coagulant charging quantity big, the drawback that inorganic sludge yield is big causes the expense of water factory on medicament input and sludge disposal to increase greatly.Therefore, be necessary on the basis of traditional coagulating sedimentation device, it to be optimized upgrading, when guaranteeing to remove the pollutent effect preferably, reduce added amount of chemical and sludge yield, thereby reduce the Sewage Plant energy consumption, reduce the sewage disposal expense.
Summary of the invention
Big in order to solve in the prior art big, the inorganic sludge yield of coagulant charging quantity, the problem that causes the expense of water factory on medicament input and sludge disposal to increase greatly, the utility model provides a kind of enhanced coagulation sedimentary waste disposal plant.
The utility model provides a kind of enhanced coagulation sedimentary waste disposal plant, comprise first mixing pit, second mixing pit, flocculation basin and the inclined-plate clarifying basin that connect by the water inlet series arrangement, also comprise the mud return line road, one end on described mud return line road is connected with described inclined-plate clarifying basin, and the other end is connected with described first mixing pit.
As further improvement of the utility model, described mud return line road comprises sludge reflux pump, and described sludge reflux pump is connected with the 4th variable-frequency motor.
As further improvement of the utility model, described inclined-plate clarifying basin comprises top overflow weir exhalant region, swash plate mud-sinking area, swash plate bottom buffer zone and the sludge discharging area of arranging from top to bottom, and described mud return line road is connected with described sludge discharging area.
As further improvement of the utility model, described top overflow weir exhalant region is provided with sawtooth overflow crest of weir.
As further improvement of the utility model, described sludge discharging area is connected with the mud discharging pipeline.
As further improvement of the utility model, the sedimentary waste disposal plant of described enhanced coagulation also comprises rectification water distribution pipeline, described rectification water distribution pipeline one end is connected with described flocculation basin, and the other end is connected with described inclined-plate clarifying basin, and described rectification water distribution pipeline comprises perforation rectification water distribution baffle plate.
As further improvement of the utility model, described first mixing pit is provided with first mechanical stirrer, described second mixing pit is provided with second mechanical stirrer, described flocculation basin is provided with the 3rd mechanical stirrer, the rotating speed of described first mechanical stirrer is greater than the rotating speed of described second mechanical stirrer, and the rotating speed of described second mechanical stirrer is greater than the rotating speed of described the 3rd mechanical stirrer.
As further improvement of the utility model, described first mechanical stirrer is connected with first variable-frequency motor, and described second mechanical stirrer is connected with second variable-frequency motor, and described the 3rd mechanical stirrer is connected with the 3rd variable-frequency motor.
As further improvement of the utility model, described first mixing pit is provided with the first medicament throwing device, described second mixing pit is provided with the second medicament throwing device, described flocculation basin is provided with the 3rd medicament throwing device, the described first medicament throwing device is the coagulant dosage device, the described second medicament throwing device is a lime throwing device, and described the 3rd medicament throwing device is the coagulant aids throwing device.
As further improvement of the utility model, the described first medicament throwing device is the polymerize aluminum chloride throwing device, and described the 3rd medicament throwing device is the polyacrylamide throwing device.
The beneficial effects of the utility model are: can satisfy the one-level processing requirements through the mixing of first mixing pit and second mixing pit, the flocculation of flocculation basin and the oettIed sewage of inclined-plate clarifying basin, also can be used as simultaneously the pre-treatment that two stage biological is handled, effectively carry out to guarantee biological treatment, by the mud return line road chemical sludge that inclined-plate clarifying basin produced being sent to first mixing pit mixes with sewage, can make full use of on the one hand in the returned sluge unreacted medicament completely, and the absorption property that utilizes mud is to improve the removal effect of pollutent; Returned sluge can be former water on the other hand provides particulate matter with as the flocculation reaction nucleus, improving flco forms and settling velocity, in a word, the sedimentary waste disposal plant of a kind of enhanced coagulation provided by the utility model not only can improve the removal efficient of pollutent, and can save dosing and can reduce sludge yield, thereby reduce sewage work's energy consumption, reduce the sewage disposal expense.
Description of drawings
Fig. 1 is the treatment scheme synoptic diagram of the sedimentary waste disposal plant of a kind of enhanced coagulation of the utility model;
Fig. 2 is the structural representation of the sedimentary waste disposal plant of enhanced coagulation described in the utility model.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 to Fig. 2 is: first mixing pit 1; First mechanical stirrer 11; The first medicament throwing device 12; Second mixing pit 2; Second mechanical stirrer 21; The second medicament throwing device 22; The 3rd mixing pit 3; The 3rd mechanical stirrer 31; The 3rd medicament throwing device 32; Inclined-plate clarifying basin 4; Sawtooth overflow crest of weir 41; Mud return line road 5; Mud discharging pipeline 6.
As depicted in figs. 1 and 2, the sedimentary waste disposal plant of a kind of enhanced coagulation, comprise first mixing pit 1, second mixing pit 2, flocculation basin 3 and the inclined-plate clarifying basin 4 that connect by the water inlet series arrangement, also comprise mud return line road 5, one end on described mud return line road 5 is connected with described inclined-plate clarifying basin 4, and the other end is connected with described first mixing pit 1, can make full use of medicament, reduce the usage quantity of medicament and reduce sludge yield, to reduce cost.
As depicted in figs. 1 and 2, described mud return line road 5 comprises sludge reflux pump, and described sludge reflux pump is connected with the 4th variable-frequency motor.
As depicted in figs. 1 and 2, described inclined-plate clarifying basin 4 comprises top overflow weir exhalant region, swash plate mud-sinking area, swash plate bottom buffer zone and the sludge discharging area of arranging from top to bottom, and described mud return line road 5 is connected with described sludge discharging area.
As depicted in figs. 1 and 2, described top overflow weir exhalant region is provided with sawtooth overflow crest of weir 41.
As depicted in figs. 1 and 2, described sludge discharging area is connected with mud discharging pipeline 6.
As depicted in figs. 1 and 2, the sedimentary waste disposal plant of described enhanced coagulation also comprises rectification water distribution pipeline, described rectification water distribution pipeline one end is connected with described flocculation basin 3, and the other end is connected with described inclined-plate clarifying basin 4, and described rectification water distribution pipeline comprises perforation rectification water distribution baffle plate.Described flocculation basin 3 water outlets flow into described inclined-plate clarifying basin 4 through outlet conduit and by perforation rectification water distribution baffle plate, can guarantee that water distribution is even, in described inclined-plate clarifying basin 4, carry out solid-liquid separation, the supernatant liquor water outlet of described inclined-plate clarifying basin 4 enters its top overflow weir exhalant region, discharge by sawtooth overflow crest of weir 41, the chemical sludge that it produced enters its sludge discharging area, the part chemical sludge is drawn back by sludge reflux pump, be back to described first mixing pit 1 by mud return line road 5, mix with former life sewage, all the other mud discharge by mud discharging pipeline 6.
As depicted in figs. 1 and 2, described first mixing pit 1 is provided with first mechanical stirrer 11, described second mixing pit 2 is provided with second mechanical stirrer 21, described flocculation basin 3 is provided with the 3rd mechanical stirrer 31, the rotating speed of described first mechanical stirrer 11 is greater than the rotating speed of described second mechanical stirrer 21, the rotating speed of described second mechanical stirrer 21 is greater than the rotating speed of described the 3rd mechanical stirrer 31, be that described first mechanical stirrer 11 is quick mechanical stirrer, described second mechanical stirrer 21 is the middling speed mechanical stirrer, and the 3rd mechanical stirrer 31 is mechanical stirrer at a slow speed.
As depicted in figs. 1 and 2, described first mixing pit 1 is provided with the first medicament throwing device 12, described second mixing pit 2 is provided with the second medicament throwing device 22, described flocculation basin 3 is provided with the 3rd medicament throwing device 32, the described first medicament throwing device 12 is the coagulant dosage device, the described second medicament throwing device 22 is a lime throwing device, be that the medicament that the described second medicament throwing device 22 is added is a lime, can provide the two stage biological denitrogenation processing required basicity, described the 3rd medicament throwing device 32 is the coagulant aids throwing device.Wherein, the above-mentioned first medicament throwing device 11, the second medicament throwing device 22 and the 3rd medicament throwing device 32 all can carry out real-time monitoring to added amount of chemical according to the variation of influent quality, under the prerequisite that guarantees effluent quality, save medicament, and the above-mentioned first medicament throwing device 11, the second medicament throwing device 22 and the 3rd medicament throwing device 32 all realize that by injection pump medicament adds control.
As depicted in figs. 1 and 2, the described first medicament throwing device 12 is polymerize aluminum chloride (Polyaluminium Chloride, be abbreviated as PAC) throwing device, be that the medicament that the described first medicament throwing device 12 is added is polymerize aluminum chloride (PAC), described the 3rd medicament throwing device 32 is polyacrylamide (being called for short a PAM) throwing device, and the medicament that promptly described the 3rd medicament throwing device 32 is added is polyacrylamide (PAM).
As depicted in figs. 1 and 2, described first mechanical stirrer 11 is connected with first variable-frequency motor, and described second mechanical stirrer 21 is connected with second variable-frequency motor, and described the 3rd mechanical stirrer 31 is connected with the 3rd variable-frequency motor.Above-mentioned first variable-frequency motor, second variable-frequency motor and the 3rd variable-frequency motor have realized that first mechanical stirrer 11, second mechanical stirrer 21 and the 3rd mechanical stirrer 31 rotating speeds are adjustable, can regulate and control stirring intensity and mud quantity of reflux as required.Its concrete preferred embodiment is: the rotating speed that is arranged on first mechanical stirrer 11 in described first mixing pit 1 is 300r/min, and the effect of described first mechanical stirrer 11 is to make former water (being sanitary sewage), returned sluge and polymerize aluminum chloride (PAC) quick thorough mixing in described first mixing pit 1; The rotating speed that is arranged on described second mechanical stirrer 21 in described second mixing pit 2 is 100r/min, and the effect of described second mechanical stirrer 21 is to make formed flco further gathering in described second mixing pit 2 in described first mixing pit 1; The rotating speed that is arranged on described the 3rd mechanical stirrer 31 in the described flocculation basin 3 is 50r/min, the effect of described the 3rd mechanical stirrer 31 is to make tiny flco and polyacrylamide (PAM) further combined with forming thick flco, and sludge reflux pump, first mechanical stirrer 11, second mechanical stirrer 21 are connected with the 4th variable-frequency motor, first variable-frequency motor, second variable-frequency motor and the 3rd variable-frequency motor respectively with the 3rd mechanical stirrer 31, can regulate and control stirring intensity and mud quantity of reflux as required.
See figures.1.and.2, the related sewage disposal flow process of the sedimentary waste disposal plant of a kind of enhanced coagulation provided by the utility model is:
(1) sewage is in raw water pump is evacuated to described first mixing pit 1, and former water, returned sluge and polymerize aluminum chloride (PAC) fully mix the formation fine particle through described first mechanical stirrer 11 under the rotating speed of 300r/min;
(2) 1 water outlet of described first mixing pit flows into described second mixing pit 2, in second mixing pit 2,, further remove in the sewage pollutent and provide required basicity for follow-up two stage biological denitrogenation processing with lime reaction under described second mechanical stirrer 21 of 100r/min fully stirs;
(3) 2 water outlets of described second mixing pit flow into described flocculation basin 3, with polyacrylamide (PAM) reaction under described the 3rd mechanical stirrer 31 of 50r/min stirs, make established tiny flco further be agglomerated into big particle in flocculation basin 3;
(4) described flocculation basin 3 water outlets enter described inclined-plate clarifying basin 4 by rising pipe and perforation rectification water distribution baffle plate, the water outlet that is described flocculation basin 3 enters described inclined-plate clarifying basin 4 by described rectification water distribution pipeline, in inclined-plate clarifying basin 4, carry out solid-liquid separation, supernatant liquor is discharged by sawtooth overflow crest of weir 41, the chemical sludge part that described inclined-plate clarifying basin 4 is produced is back to described first mixing pit 1 by mud return line road 5 mixes with raw waste water, and a part is discharged by mud discharging pipeline 6.
The principle of the sedimentary waste disposal plant of enhanced coagulation provided by the present invention is, exist the suspensoid particle in the sanitary sewage, exist the electrostatic repulsion that Van der Waals force and zeta-potential cause between colloidal particle simultaneously, it mainly is because the electrostatic repulsion between the micelle zeta-potential that the water-borne glue physical efficiency is kept stable dispersion suspension state.When adding ionogen in water, water intermediate ion concentration increases, and thickness of diffusion layer reduces.Two micelles mutually near the time because thickness of diffusion layer reduces, zeta-potential reduces, therefore, the electrostatic repulsion between micelle reduces, and repel potential energy and weaken, and magnetism increases, thereby make micelle condense rapidly.When sewage enters described first mixing pit, owing in sewage, added inorganic polymer coagulant polymerize aluminum chloride (PAC), add the quick mechanical stirring of intensive, make medicament fully contact with suspensoid particle in the sewage, the ionogen that adds reduces the colloid zeta-potential, thereby makes the micelle cohesion.And sedimentary chemical sludge is back to first mixing pit 1, and its purpose mainly is to make full use of the nucleus effect of coagulating agent and mud granule completely of unreacted in the mud, makes that the easier gathering of small micelle in the sewage is agglomerating.
Sewage enters second mixing pit 2 again after first mixing pit 1 fully mixes, mainly is to utilize to add lime and further remove pollutants in sewage, and as the basicity source of follow-up biological denitrificaion.
Sewage mainly is with organic polymer coagulant aids polyacrylamide (PAM) the adsorption bridging effect to take place in flocculation basin 3, and the net of metal-salt that forms or precipitate metal hydroxides is caught the effect of sweeping of rolling up, make established little micelle further be gathered into macrobead, afterwards, sewage enters inclined-plate clarifying basin 4, in inclined-plate clarifying basin 4, carry out solid-liquid separation, the supernatant liquor water outlet is discharged by sawtooth overflow crest of weir 41, the chemical sludge part that is produced is back to first mixing pit 1 through mud return line road 5, and all the other efflux through mud discharging pipeline 6.
The advantage of the sedimentary waste disposal plant of a kind of enhanced coagulation provided by the utility model is: through the mixing of first mixing pit 1 and second mixing pit 2, the oettIed sewage of the flocculation of flocculation basin 3 and inclined-plate clarifying basin 4 can satisfy the one-level processing requirements, also can be used as simultaneously the pre-treatment that two stage biological is handled, effectively carry out to guarantee biological treatment, the chemical sludge that inclined-plate clarifying basin 4 is produced by mud return line road 5 is sent to first mixing pit 1 to be mixed with sewage, can make full use of on the one hand in the returned sluge unreacted medicament completely, and the absorption property that utilizes mud is to improve the removal effect of pollutent; Returned sluge can be former water on the other hand provides particulate matter with as the flocculation reaction nucleus, improving flco forms and settling velocity, in a word, the sedimentary waste disposal plant of a kind of enhanced coagulation provided by the utility model not only can improve the removal efficient of pollutent, and can save dosing and can reduce sludge yield, thereby reduce sewage work's energy consumption, reduce the sewage disposal expense.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. sedimentary waste disposal plant of enhanced coagulation, it is characterized in that: comprise first mixing pit (1), second mixing pit (2), flocculation basin (3) and the inclined-plate clarifying basin (4) that connect by the water inlet series arrangement, also comprise mud return line road (5), one end on described mud return line road (5) is connected with described inclined-plate clarifying basin (4), and the other end is connected with described first mixing pit (1).
2. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 1, it is characterized in that: described mud return line road (5) comprises sludge reflux pump, and described sludge reflux pump is connected with the 4th variable-frequency motor.
3. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 1, it is characterized in that: described inclined-plate clarifying basin (4) comprises top overflow weir exhalant region, swash plate mud-sinking area, swash plate bottom buffer zone and the sludge discharging area of arranging from top to bottom, and described mud return line road (5) is connected with described sludge discharging area.
4. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 3, it is characterized in that: described top overflow weir exhalant region is provided with sawtooth overflow crest of weir (41).
5. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 3, it is characterized in that: described sludge discharging area is connected with mud discharging pipeline (6).
6. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 1, it is characterized in that: the sedimentary waste disposal plant of described enhanced coagulation also comprises rectification water distribution pipeline, described rectification water distribution pipeline one end is connected with described flocculation basin (3), the other end is connected with described inclined-plate clarifying basin (4), and described rectification water distribution pipeline comprises perforation rectification water distribution baffle plate.
7. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 1, it is characterized in that: described first mixing pit (1) is provided with first mechanical stirrer (11), described second mixing pit (2) is provided with second mechanical stirrer (21), described flocculation basin (3) is provided with the 3rd mechanical stirrer (31), the rotating speed of described first mechanical stirrer (11) is greater than the rotating speed of described second mechanical stirrer (21), and the rotating speed of described second mechanical stirrer (21) is greater than the rotating speed of described the 3rd mechanical stirrer (31).
8. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 7, it is characterized in that: described first mechanical stirrer (11) is connected with first variable-frequency motor, described second mechanical stirrer (21) is connected with second variable-frequency motor, and described the 3rd mechanical stirrer (31) is connected with the 3rd variable-frequency motor.
9. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 1, it is characterized in that: described first mixing pit (1) is provided with the first medicament throwing device (12), described second mixing pit (2) is provided with the second medicament throwing device (22), described flocculation basin (3) is provided with the 3rd medicament throwing device (32), the described first medicament throwing device (12) is the coagulant dosage device, the described second medicament throwing device (22) is a lime throwing device, and described the 3rd medicament throwing device (32) is the coagulant aids throwing device.
10. according to the sedimentary waste disposal plant of the described enhanced coagulation of claim 9, it is characterized in that: the described first medicament throwing device (12) is the polymerize aluminum chloride throwing device, and described the 3rd medicament throwing device (32) is the polyacrylamide throwing device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020533361XU CN201825803U (en) | 2010-09-17 | 2010-09-17 | Coagulating sedimentation-reinforced sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020533361XU CN201825803U (en) | 2010-09-17 | 2010-09-17 | Coagulating sedimentation-reinforced sewage treatment device |
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| CN201825803U true CN201825803U (en) | 2011-05-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976526A (en) * | 2012-12-11 | 2013-03-20 | 北京翰祺环境技术有限公司 | Forced external circulating type efficient precipitation method and equipment based on addition of lime |
| CN103663640A (en) * | 2013-12-06 | 2014-03-26 | 哈尔滨工业大学深圳研究生院 | Wastewater processing technology and apparatus capable of synchronously removing phosphates and copper ions in water |
| CN103880206A (en) * | 2012-12-20 | 2014-06-25 | 深圳职业技术学院 | Sludge dynamic nucleation flocculated heavy metal wastewater advanced treatment method |
| CN107935149A (en) * | 2017-12-29 | 2018-04-20 | 清华大学深圳研究生院 | The stain disease processing method and system of coagulation flco reflux |
| CN109824179A (en) * | 2019-04-08 | 2019-05-31 | 四川博渠科技有限责任公司 | A kind of flood season emergency tap water production 3G flocculation precipitation method and its system |
| CN110902873A (en) * | 2019-11-12 | 2020-03-24 | 东华大学 | Device and method for removing heavy metals through coagulation circulation adsorption of wastewater |
-
2010
- 2010-09-17 CN CN201020533361XU patent/CN201825803U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976526A (en) * | 2012-12-11 | 2013-03-20 | 北京翰祺环境技术有限公司 | Forced external circulating type efficient precipitation method and equipment based on addition of lime |
| CN102976526B (en) * | 2012-12-11 | 2013-12-04 | 北京翰祺环境技术有限公司 | Forced external circulating type efficient precipitation method and equipment based on addition of lime |
| CN103880206A (en) * | 2012-12-20 | 2014-06-25 | 深圳职业技术学院 | Sludge dynamic nucleation flocculated heavy metal wastewater advanced treatment method |
| CN103880206B (en) * | 2012-12-20 | 2015-11-04 | 深圳职业技术学院 | The heavy metal wastewater thereby deep treatment method of the dynamic nucleation flocculation of mud |
| CN103663640A (en) * | 2013-12-06 | 2014-03-26 | 哈尔滨工业大学深圳研究生院 | Wastewater processing technology and apparatus capable of synchronously removing phosphates and copper ions in water |
| CN107935149A (en) * | 2017-12-29 | 2018-04-20 | 清华大学深圳研究生院 | The stain disease processing method and system of coagulation flco reflux |
| CN107935149B (en) * | 2017-12-29 | 2023-12-26 | 清华大学深圳研究生院 | Sewage and wastewater treatment method and system for coagulation floc backflow |
| CN109824179A (en) * | 2019-04-08 | 2019-05-31 | 四川博渠科技有限责任公司 | A kind of flood season emergency tap water production 3G flocculation precipitation method and its system |
| CN110902873A (en) * | 2019-11-12 | 2020-03-24 | 东华大学 | Device and method for removing heavy metals through coagulation circulation adsorption of wastewater |
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Granted publication date: 20110511 Termination date: 20110917 |