CN104591375A - Integrated oxidation ditch with 3D circulation and operation method - Google Patents
Integrated oxidation ditch with 3D circulation and operation method Download PDFInfo
- Publication number
- CN104591375A CN104591375A CN201410729954.6A CN201410729954A CN104591375A CN 104591375 A CN104591375 A CN 104591375A CN 201410729954 A CN201410729954 A CN 201410729954A CN 104591375 A CN104591375 A CN 104591375A
- Authority
- CN
- China
- Prior art keywords
- solid
- liquid separator
- tap drain
- oxidation ditch
- integrated oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C02F3/1257—Oxidation ditches
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
-
- 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
Abstract
The invention belongs to the field of processing sewage by utilizing a biological technology, and relates to an integrated oxidation ditch with 3D circulation and an operation method. The equipment is composed of an oxidation ditch main ditch and a solid-liquid separator, wherein the solid-liquid separator is composed of a solid-liquid separator box body, a mixed-liquid inlet weir with adjustable height, a pipeline, a settled-sludge backflow port at the lower part of the solid-liquid separator, and an underwater propeller for providing power for the solid-liquid separator. The integrated oxidation ditch can control the sludge backflow amount of the solid-liquid separator, the solid-liquid separation effect can be reinforced, and investment and operation energy consumption are saved.
Description
Technical field:
The invention belongs to the technical field of Biochemical method sewage, relate generally to a kind of stereoscopic circulation integrated oxidation ditch working method.
Background technology:
Oxidation ditch process runs comparatively energy-conservation, anti impulsion load, and has better removal effect to pollutents such as organism, total nitrogen, ammonia nitrogens, has obtained in numerous country and has applied, but oxidation ditch process mainly floor space is comparatively large and operation energy consumption is higher.
For the shortcoming that oxidation ditch floor space is large, the stereoscopic circulation integrated oxidation ditch technology of exploitation, the purification of the aeration of conventional oxidation ditch and the precipitation of mixed solution/be separated merge integrally by it, achieve mud without pump reflux; Change the plane circulation of conventional oxidation ditch into stereo circulating, this technology decreases the operation energy consumption of floor space and backflow compared with conventional oxidation ditch technology.
The sludge reflux of stereoscopic circulation integrated oxidation ditch is gordian technique unit, and how providing the power of backflow to form automatic back flow and how controlling sludge reflux is the key issue needing to solve.Based on this, invent the adjusting device of strengthening stereoscopic circulation integrated oxidation ditch sludge reflux, for strengthening the effect of solid-liquid separation.
Summary of the invention:
The invention provides a kind of stereoscopic circulation integrated oxidation ditch, be made up of stereoscopic circulation integrated oxidation ditch tap drain and solid-liquid separator, stereoscopic circulation integrated oxidation ditch provided by the present invention effectively can solve the power of sludge reflux and control the inlet of muddy water.
Described solid-liquid separator is a casing, be connected with the tap drain of stereoscopic circulation integrated oxidation ditch, this solid-liquid separator enters weir, pipeline, sludge reflux mouth and the underwater propeller be arranged in tap drain by solid-liquid separator casing, the mixed solution be arranged in solid-liquid separator casing and forms.Described mixed solution enters weir and is arranged on water surface site on the joint face of solid-liquid separator casing and tap drain, described mixed solution enters weir is provided with and leads to the pipeline of solid-liquid separator casing away from tap drain end, described sludge reflux mouth is positioned at solid-liquid separator casing and is connected with tap drain the bottom in face, described underwater propeller is arranged in tap drain, is positioned at the front of sludge reflux mouth.
It is adjustable weir that described mixed solution enters weir, weir plate adjustable-height, is controlled the inlet of muddy water by regulating weir plate height.Enter mixed solution in weir by pipeline flow to solid-liquid separator casing and tap drain away from end, and mixed solution is flow to solid-liquid separator casing and tap drain by pipeline can prevent and treat solid-liquid separator rear end mud do not flow away from holding.
The obliquity of described pipeline is 30-60 degree, and distance solid-liquid separator and tap drain are away from holding limit wall 0.5-2m.
The operation steps of described stereoscopic circulation integrated oxidation ditch is as follows:
1, sewage enters stereoscopic circulation integrated oxidation ditch tap drain after active sludge treatment, and enter solid-liquid separator mud-water separation, clear water is drained;
2, the muddy water mixed solution of tap drain enters weir by mixed solution, through Cemented filling to solid-liquid separator casing and tap drain away from end, its flow is controlled by the height of weir plate;
3, muddy water is after solid-liquid separator is separated, and precipitating sludge is returned by mud, and mouth is back to tap drain, and underwater propeller promotes water (flow) direction away from solid-liquid separator, provide the power that precipitating sludge refluxes, and power is controlled.
Beneficial effect:
1, stereoscopic circulation integrated oxidation ditch system construction of the present invention is succinct, and operation is very simple with maintenance;
2, stereoscopic circulation integrated oxidation ditch of the present invention can save mud scraper, reduces investment outlay;
3, muddy water inlet and backflow power all controlled, improve stability and the efficiency of solid-liquid separator.
Accompanying drawing illustrates:
Fig. 1 stereoscopic circulation integrated oxidation ditch floor map
I stereoscopic circulation integrated oxidation ditch tap drain II solid-liquid separator
1 mixed solution enters weir 2 pipeline 3 precipitating sludge refluxing opening 4 underwater propeller 5 solid-liquid separator casing 6 water-in 7 water outlet 8 turns of brush 9 dividing plates
Fig. 2 stereoscopic circulation integrated oxidation ditch sectional elevation schematic diagram.
The dirty device of I stereoscopic circulation integrated oxidation ditch tap drain II solid-liquid separation
1 mixed solution enters weir 2 pipeline 3 precipitating sludge refluxing opening 4 underwater propeller 5 solid-liquid separator casing 6 water-in 7 water outlet 8 turns of brush 9 dividing plates
Embodiment:
Embodiment 1: a kind of stereoscopic circulation integrated oxidation ditch and working method
A kind of stereoscopic circulation integrated oxidation ditch, is made up of stereoscopic circulation integrated oxidation ditch tap drain I and solid-liquid separator II.
Described solid-liquid separator II, enters weir 1, pipeline 2, precipitating sludge refluxing opening 3, underwater propeller 4 and solid-liquid separator casing 5 by mixed solution and forms.
Mixed solution enters weir 1 and is positioned at solid-liquid separator II and is connected with stereoscopic circulation integrated oxidation ditch tap drain I the top water surface site in face, for adjustable weir, weir plate adjustable-height, the mixed solution entered in weir flows to solid-liquid separator casing 5 with tap drain away from end by pipeline 2, the gradient of pipeline 2 is 45 degree, and distance solid-liquid separator and tap drain are away from holding limit wall 1m.
Precipitating sludge refluxing opening 3 is positioned at solid-liquid separation II and is connected with stereoscopic circulation integrated oxidation ditch tap drain I basifacial, and up crack from the bottom of pond, the height cracked is 1/15 of the depth of water.In stereoscopic circulation integrated oxidation ditch tap drain I, underwater propeller 4 is installed in the front end of refluxing opening 3, and it is away from solid-liquid separator II that underwater propeller 4 promotes water (flow) direction.
Sewage enters stereoscopic circulation integrated oxidation ditch tap drain I by water-in 6, forms circulation process through active sludge under the promotion turning brush 8 around dividing plate 9; The muddy water mixed solution of stereoscopic circulation integrated oxidation ditch tap drain enters weir 1 by mixed solution, and be then transported to solid-liquid separator casing 5 with tap drain away from end through piping 2, its flow is controlled by the height of weir plate; Muddy water is after solid-liquid separator casing 5 is separated, and precipitating sludge is back to tap drain by sludge reflux mouth 3, and its backflow power is provided by underwater propeller 4; Sewage after process is discharged by water outlet 7.
The adjusting device of above-mentioned strengthening stereoscopic circulation integrated oxidation ditch sludge reflux is installed on 15m
3/ d stereoscopic circulation integrated oxidation ditch equipment is inner, processes the sanitary sewage of a community.
Sewage is sanitary sewage mainly.Its water quality character is as follows: SS:60 ~ 100mg/L, CODcr:100 ~ 250mg/L, TN:25 ~ 50mg/L, TP:3.0 ~ 7.0mg/L.
In the operational process of 3 months, keep activated sludge concentration in stereoscopic circulation integrated oxidation ditch to be 2000 ~ 4000mg/l, water temperature is 18 ~ 22 DEG C, and pH is 6 ~ 9.
Result shows: through the adjusting device process of strengthening stereoscopic circulation integrated oxidation ditch sludge reflux of the present invention, do not need mud mud scraper, and solid-liquid separator II solid-liquid separation is good, and the timely backflow of mud, effluent SS is stabilized in 8 ~ 19mg/L.
Claims (7)
1. a stereoscopic circulation integrated oxidation ditch, be made up of stereoscopic circulation integrated oxidation ditch tap drain and solid-liquid separator, it is characterized in that, described solid-liquid separator is by solid-liquid separator casing, the mixed solution being positioned at solid-liquid separator casing enters weir, pipeline, sludge reflux mouth and the underwater propeller composition be arranged in tap drain, described mixed solution enters water surface site on joint face that weir is arranged on solid-liquid separator casing and tap drain, described mixed solution enters weir is provided with and leads to the pipeline of solid-liquid separator casing away from tap drain end, described sludge reflux mouth is positioned at solid-liquid separator casing and is connected with tap drain the bottom in face, described underwater propeller is arranged in tap drain, be positioned at the front of sludge reflux mouth.
2. a kind of stereoscopic circulation integrated oxidation ditch according to claim 1, it is characterized in that, described tap drain is a casing, be made up of the water-in in casing, turn brush and dividing plate, described water-in is positioned on the sidewall of tap drain away from solid-liquid separator end, and described turn of brush is positioned at solid-liquid separator far-end, and level attitude is 1/4 place of main channel length, described dividing plate is positioned at 1/2 place of water level, and the distance apart from tap drain two ends is respectively 1/2 water level.
3. a kind of stereoscopic circulation integrated oxidation ditch according to claim 1 and 2, is characterized in that, it is adjustable weir that described mixed solution enters weir, weir plate adjustable-height.
4. a kind of stereoscopic circulation integrated oxidation ditch according to claim 1 and 2, is characterized in that, the obliquity of described pipeline is 30-60 degree.
5. a kind of stereoscopic circulation integrated oxidation ditch according to claim 1 and 2, is characterized in that, described pipeline distance solid-liquid separator casing and tap drain are away from the limit wall 0.5-2m held.
6. a kind of stereoscopic circulation integrated oxidation ditch according to claim 1 and 2, is characterized in that, described sludge reflux mouth up cracks from the bottom of pond, and the height cracked is the 1/10-1/20 of the depth of water.
7. a method of disposing of sewage, is characterized in that, use the stereoscopic circulation integrated oxidation ditch described in claim 1-6 any one to process, concrete steps are as follows:
(1), after sewage enters the process of stereoscopic circulation integrated oxidation ditch tap drain, enter solid-liquid separator mud-water separation, clear water is drained;
(2) muddy water mixed solution of tap drain enters weir by mixed solution, through Cemented filling to solid-liquid separator casing and tap drain away from end, its flow is controlled by the height of weir plate;
(3) muddy water is after solid-liquid separator is separated, and precipitating sludge is back to tap drain by sludge reflux mouth, and underwater propeller promotes water (flow) direction away from solid-liquid separator, provide the power that precipitating sludge refluxes, and power is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729954.6A CN104591375A (en) | 2014-12-04 | 2014-12-04 | Integrated oxidation ditch with 3D circulation and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729954.6A CN104591375A (en) | 2014-12-04 | 2014-12-04 | Integrated oxidation ditch with 3D circulation and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104591375A true CN104591375A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410729954.6A Pending CN104591375A (en) | 2014-12-04 | 2014-12-04 | Integrated oxidation ditch with 3D circulation and operation method |
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| CN (1) | CN104591375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541454A (en) * | 2019-09-20 | 2019-12-06 | 常州通用自来水有限公司 | secondary water supply tank easy to disinfect and guarantee water quality and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100225972B1 (en) * | 1997-07-07 | 1999-10-15 | 한상배 | Oxidation ditch having intra clarifier equipped with inclined plate |
| KR100607719B1 (en) * | 2005-03-16 | 2006-08-03 | 주식회사 타 셋 | Wastewater treatment system using oxidation ditch |
| CN201762216U (en) * | 2010-08-18 | 2011-03-16 | 四川华健环博投资有限公司 | Single-pond zoning simple sewage treatment system |
| CN201908018U (en) * | 2009-12-01 | 2011-07-27 | 李进民 | Sewage treatment device |
| CN103803701A (en) * | 2013-10-18 | 2014-05-21 | 中国科学院生态环境研究中心 | Unilateral precipitation three-dimensional circulation integrated oxidation ditch equipment and operation method thereof |
-
2014
- 2014-12-04 CN CN201410729954.6A patent/CN104591375A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100225972B1 (en) * | 1997-07-07 | 1999-10-15 | 한상배 | Oxidation ditch having intra clarifier equipped with inclined plate |
| KR100607719B1 (en) * | 2005-03-16 | 2006-08-03 | 주식회사 타 셋 | Wastewater treatment system using oxidation ditch |
| CN201908018U (en) * | 2009-12-01 | 2011-07-27 | 李进民 | Sewage treatment device |
| CN201762216U (en) * | 2010-08-18 | 2011-03-16 | 四川华健环博投资有限公司 | Single-pond zoning simple sewage treatment system |
| CN103803701A (en) * | 2013-10-18 | 2014-05-21 | 中国科学院生态环境研究中心 | Unilateral precipitation three-dimensional circulation integrated oxidation ditch equipment and operation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 任南琪等: "《高浓度有机工业废水处理技术》", 30 September 2012, article "3.2.4氧化沟法" * |
| 李晋等: "单沟型氧化沟强化脱氮及节能降耗运行策略", 《水处理技术》, vol. 40, no. 5, 10 May 2014 (2014-05-10) * |
| 王秀蘅等: "斜板沉淀池在一体化氧化沟中的作用", 《中国给水排水》, vol. 17, no. 11, 30 November 2001 (2001-11-30) * |
| 高艳玲: "《城市污水处理技术及工艺运行管理》", 31 July 2012, article "3.1.4.2氧化沟工艺的主要性能特点" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541454A (en) * | 2019-09-20 | 2019-12-06 | 常州通用自来水有限公司 | secondary water supply tank easy to disinfect and guarantee water quality and control method thereof |
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Application publication date: 20150506 |
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