CN103630663A - Method for improving detection accuracy of effluent index of contact tank - Google Patents

Method for improving detection accuracy of effluent index of contact tank Download PDF

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Publication number
CN103630663A
CN103630663A CN201310697143.8A CN201310697143A CN103630663A CN 103630663 A CN103630663 A CN 103630663A CN 201310697143 A CN201310697143 A CN 201310697143A CN 103630663 A CN103630663 A CN 103630663A
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China
Prior art keywords
water
inlet passage
bubble
inlet
foam
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Application number
CN201310697143.8A
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Chinese (zh)
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CN103630663B (en
Inventor
庞子山
杜宇麟
张斌峰
张琨
姜宁
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CHONGQING YUXI WATER SERVICE Co Ltd
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CHONGQING YUXI WATER SERVICE Co Ltd
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Priority to CN201310697143.8A priority Critical patent/CN103630663B/en
Publication of CN103630663A publication Critical patent/CN103630663A/en
Application granted granted Critical
Publication of CN103630663B publication Critical patent/CN103630663B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a method for improving the detection accuracy of an effluent index of a contact tank. The method is characterized in that before effluent detection, a water inlet gallery of the contact tank is designed and comprises a first inlet gallery and a second inlet gallery which are connected between a junction well of a secondary sedimentation tank and the contact tank in sequence; the first inlet gallery and the second inlet gallery are in deflected connection; the width of the second inlet gallery is greater than that of the first inlet gallery; a de-foaming mechanism for de-foaming is arranged at a water inlet part of the second inlet gallery. According to the method for improving the detection accuracy of the effluent index of the contact tank, a water treatment process does not need to be improved and a foam eliminating manner is used for preventing the detection from being influenced by foams; effluent detection parameters of the contact tank are reduced by lower cost; meanwhile, the detection accuracy and the detection reliability of the effluent index are improved and the detection standard-reaching rate is improved.

Description

A kind of method that improves contact chamber effluent index accuracy in detection
Technical field
The present invention relates to a kind of sewage disposal system contact chamber water outlet detection technique, especially a kind of method that can improve contact chamber effluent index accuracy in detection.
 
Background technology
Contact chamber, has another name called in the sewage disposal system of disinfecting tank ,Shi city domestic sewage treatment plant, sewage after second pond precipitation to the pond that carries out disinfection and react for adding liquid chlorine together before outer row.
The sewage that sewage disposal system is disposed, it can reach certain water quality standard, is called middle water, can arrange or recycle in addition.Therefore all need during sewage disposal system water outlet to detect, can judgement water outlet ss index (suspended solids content), colorimetry-turbidity etc. reach requirement.
In the situation that summer, inflow strengthened, usually can cause water outlet ss index and colorimetry-turbidity index exceeding standard, in order to reduce water outlet ss index, in prior art, be generally by strengthening biological reaction pool, the treatment effect in the treatment process such as settling basin; Need to drop into larger cost.
 
Summary of the invention
For the deficiencies in the prior art, technical matters to be solved by this invention is, how providing a kind of can reduce contact chamber water outlet detected parameters with less cost, improves the method for the raising contact chamber effluent index accuracy in detection of effluent index accuracy of detection and reliability.
In order to solve the problems of the technologies described above, in the present invention, adopted following technical scheme:
A kind of method that improves contact chamber effluent index accuracy in detection, it is characterized in that, before water outlet detects, the inlet passage of contact chamber is designed to comprise the first inlet passage and the second inlet passage being linked in sequence between second pond junction box and contact chamber, described the second inlet passage is folded to and is connected with the first inlet passage, and the second inlet passage width is greater than the first inlet passage width; And in the second inlet passage water inlet place, de-bubble mechanism is set and carries out de-bubble.
Applicant researchs and analyses discovery, stage in summer, sewage foam volume is very large, further analyze sewage foam and comprise bio foam and physical foam, bio foam is mainly produced by the residual body of der Pilz and a small amount of poor residual body particulate of dead mud of flocculating settling characteristics, and physical foam is mainly because the reasons such as disturbance drop produce in water body flow process.Because sewage industry ss measures, be that the mode that adopts filtration to weigh is measured, therefore wherein bio foam can affect ss index size; Foam particles is mingled in water simultaneously, can cause the increasing of colorimetry-turbidity; Caused detecting reliability poor, detected index inaccurate, easily exceeded standard.Therefore applicant is designed to the inlet passage of contact chamber to be folded to the second connected inlet passage and the first inlet passage, and the second inlet passage width is greater than the first inlet passage width.Like this, it is connected that two inlet passages are folded to, energy dissipating better, and the second inlet passage width is larger simultaneously, therefore water speed slows down after current enter the second gallery, avoids current too urgent and produce new bubble; Can better guarantee the hydraulic detention time in contact chamber, avoid the too urgent impact on contact chamber of current, guarantee Disinfection Effect, improve the final percent of pass that detects simultaneously.Meanwhile, and in the second inlet passage water inlet place, de-bubble mechanism is set and carries out de-bubble; Avoid foam on the impact detecting, and then reached reduction contact chamber water outlet detected parameters, improved the effect of effluent index accuracy in detection and reliability.
As optimization, described de-bubble mechanism comprises the water pipe being horizontally installed on the second inlet passage water inlet place Width gallery wall, and on water pipe, along the oblique discharge (operating) water nozzle that is arranged with of the second inlet passage water (flow) direction, water pipe is connected with intermediate water pipeline system; Also comprise the energy dissipating baffle plate that is positioned at the second inlet passage water inlet, the vertical bottom of described energy dissipating baffle plate there is not upstream face and is positioned at the first half position of water inlet flow section, on energy dissipating baffle plate, is evenly distributed with flowing hole; During use, energy dissipating baffle plate is used for energy dissipating and slows down water speed and the follow-up current of energy dissipating baffle plate are sprung up from the bottom up, and the current that emerge on the hiding foam in current depths and penetrated by water pipe are broken, and guarantees better de-bubble effect.
Like this, energy dissipating baffle plate better energy dissipating to slow down water speed; Simultaneously the position of energy dissipating baffle plate, makes the follow-up current of energy dissipating baffle plate present the feature springing up from the bottom up, avoid due to the second inlet passage broaden and be folded to after in its water inlet place, produce down stream and whirlpool and sweep across into air and produce bubble.Meanwhile, after energy dissipating baffle plate springs up follow-up current from the bottom up, can make the current that emerge on the hiding foam in current depths and penetrated by water pipe break, guarantee better de-bubble effect; And then reduce contact chamber water outlet detected parameters, can be up to standard better.
As optimization, suspension defoaming device is further set in the first inlet passage of contact chamber to eliminate foam in water inlet current; Described suspension defoaming device, comprise a support frame that integral body is rectangular, support frame width and the first inlet passage width coupling and four jiaos of fixing floats of lower side support bubbles through the water column, support frame ties up on the gallery wall of the first inlet passage by static line, support frame is horizontally arranged with a de-bubble brush in face of the front end of water (flow) direction, de-bubble brush two ends are rotatably connected on support frame, and the bristle of de-bubble brush bottom immerses underwater, and the bristle that de-bubble brushes portion surfaces; In suspension defoaming device, also comprise a clad steel silk screen that is arranged on support frame rear end, the oblique front immersion water surface of described double-layer wire net Lower Half below; When suspension defoaming device is used, de-bubble brush is for tentatively smashing water surface foam and driving water-bed foam floating, clad steel silk screen be used for tackling assemble residue foam and a period of time collection completely after, by artificial salvaging, cleared up.
After optimizing like this, when the suspension defoaming device of employing is used, the rotation of water impact de-bubble brush, like this, de-bubble brush can be broken up the foam of water surface, tentatively eliminates foam; The foam that part is not smashed by de-bubble brush and part are driven the foam that floats to the water surface from current bottom all by woven wire interception, to be assembled by the current of de-bubble brush rotation, when a period of time collection completely after, can manually salvage cleaning, improved better de-bubble effect.Wherein, woven wire adopts settings that turn forward of bilayer and bottom, and when can improve the congregational rate of foam and being convenient to salvage, foam is attached on woven wire, and convenient salvaging cleared up.Woven wire adopts the woven wire of 80 order left and right, can guarantee preferably congregational rate.Therefore after optimizing, greatly improved de-bubble effect, guaranteed contact chamber effluent index detection accuracy.
In sum, the present invention is without water technology is improved, but avoids foam on the impact detecting to eliminate the mode of foam, can be with less cost, reduce contact chamber water outlet detected parameters, improve effluent index accuracy of detection and reliability simultaneously, improve and detect compliance rate.
 
Accompanying drawing explanation
The de-bubble system that Fig. 1 adopts while being the invention process is overlooked the structural representation sketch of direction.
Fig. 2 is the A-A face schematic diagram of Fig. 1.
 
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of method that improves contact chamber effluent index accuracy in detection, its improvement is, before water outlet detects, the inlet passage of contact chamber is designed to the inlet passage with de-bubble system, to eliminate foam, and then avoid the impact of foam on effluent index testing process, to reduce detected parameters and to improve detection accuracy.
Shown in the following Fig. 1 of wherein de-bubble system and Fig. 2, comprise the first inlet passage 1 and the second inlet passage 2 that are linked in sequence between second pond junction box and contact chamber, in described the first inlet passage 1, be provided with suspension defoaming device, described the second inlet passage 2 water inlets place are provided with de-bubble mechanism; Described suspension defoaming device comprises a support frame 3 that integral body is rectangular, support frame 3 width and the first inlet passage width coupling and four jiaos of fixing floats 4 of lower side support bubbles through the water column, support frame ties up on the gallery wall of the first inlet passage by static line, support frame 3 is horizontally arranged with a de-bubble brush 5 in face of the front end of water (flow) direction, de-bubble is brushed 5 two ends and is rotatably connected on support frame 3, the bristle that 5 bottoms are brushed in de-bubble immerses underwater, and the bristle that 5 tops are brushed in de-bubble surfaces; Described de-bubble mechanism comprises the water pipe 6 being horizontally installed on the second inlet passage water inlet place Width gallery wall, and on water pipe 6, along the oblique discharge (operating) water nozzle 10 that is arranged with of the second inlet passage water (flow) direction, water pipe 6 is connected with intermediate water pipeline system.In described suspension defoaming device, also comprise a clad steel silk screen 7 that is arranged on support frame 3 rear ends, the described clad steel silk screen oblique front immersion water surface of 7 Lower Half below.Described the second inlet passage 2 is folded to and is connected with the first inlet passage 1, and the second inlet passage 2 width are greater than the first inlet passage width.In described de-bubble mechanism, also comprise the energy dissipating baffle plate 8 that is positioned at the second inlet passage 2 water inlets, described energy dissipating baffle plate 8 bottoms there are not upstream face and are positioned at the first half position of water inlet flow section, are evenly distributed with flowing hole 9 on energy dissipating baffle plate 8.
When the de-bubble system adopting in the present invention is used, the first de-bubble brush of flowing through in the first inlet passage of current, the foam of the water surface is smashed in de-bubble brush rotation, drive simultaneously current by the foam of current bottom to the floating place water surface, and tackled by clad steel silk screen together with the not broken foam of part.After within 1-2 days, amassing completely, artificial salvaging cleared up, and while specifically implementing, woven wire adopts the woven wire about 80 orders, can guarantee preferably congregational rate.Current continue to flow into the second inlet passage, the second inlet passage be folded to arrange and width larger, therefore energy dissipating is slowed down well, avoid new Bubble formation.The second inlet passage water inlet place is provided with the de-bubble mechanism that comprises water pipe and energy dissipating baffle plate, the energy dissipating baffle plate wherein arranging better energy dissipating to slow down water speed; Simultaneously the position of energy dissipating baffle plate, makes the follow-up current of energy dissipating baffle plate present the feature springing up from the bottom up, avoid due to the second inlet passage broaden and be folded to after in its water inlet place, produce down stream and whirlpool and sweep across into air and produce bubble.Simultaneously, after energy dissipating baffle plate springs up follow-up current from the bottom up, can make the current that emerge on the hiding foam in current depths and penetrated by water pipe break, guarantee better de-bubble effect, and then reduce the impact of foam on effluent index, improved contact chamber effluent characteristics.

Claims (3)

1. a method that improves contact chamber effluent index accuracy in detection, it is characterized in that, before water outlet detects, the inlet passage of contact chamber is designed to comprise the first inlet passage and the second inlet passage being linked in sequence between second pond junction box and contact chamber, described the second inlet passage is folded to and is connected with the first inlet passage, and the second inlet passage width is greater than the first inlet passage width; And in the second inlet passage water inlet place, de-bubble mechanism is set and carries out de-bubble.
2. the method for raising contact chamber effluent index accuracy in detection as claimed in claim 1, it is characterized in that, described de-bubble mechanism comprises the water pipe being horizontally installed on the second inlet passage water inlet place Width gallery wall, on water pipe, along the oblique discharge (operating) water nozzle that is arranged with of the second inlet passage water (flow) direction, water pipe is connected with intermediate water pipeline system; Also comprise the energy dissipating baffle plate that is positioned at the second inlet passage water inlet, the vertical bottom of described energy dissipating baffle plate there is not upstream face and is positioned at the first half position of water inlet flow section, on energy dissipating baffle plate, is evenly distributed with flowing hole; During use, energy dissipating baffle plate is used for energy dissipating and slows down water speed and the follow-up current of energy dissipating baffle plate are sprung up from the bottom up, and the current that emerge on the hiding foam in current depths and penetrated by water pipe are broken, and guarantees better de-bubble effect.
3. the method for raising contact chamber effluent index accuracy in detection as claimed in claim 1, is characterized in that, suspension defoaming device is set in the first inlet passage of contact chamber to eliminate foam in water inlet current; Described suspension defoaming device, comprise a support frame that integral body is rectangular, support frame width and the first inlet passage width coupling and four jiaos of fixing floats of lower side support bubbles through the water column, support frame ties up on the gallery wall of the first inlet passage by static line, support frame is horizontally arranged with a de-bubble brush in face of the front end of water (flow) direction, de-bubble brush two ends are rotatably connected on support frame, and the bristle of de-bubble brush bottom immerses underwater, and the bristle that de-bubble brushes portion surfaces; In suspension defoaming device, also comprise a clad steel silk screen that is arranged on support frame rear end, the oblique front immersion water surface of described double-layer wire net Lower Half below; When suspension defoaming device is used, de-bubble brush is for tentatively smashing water surface foam and driving water-bed foam floating, clad steel silk screen be used for tackling assemble residue foam and a period of time collection completely after, by artificial salvaging, cleared up.
CN201310697143.8A 2013-12-19 2013-12-19 Method for improving detection accuracy of effluent index of contact tank Expired - Fee Related CN103630663B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843848A (en) * 2015-04-29 2015-08-19 四川和鼎环保工程有限责任公司 Oxidation ditch for mechanically eliminating bubbles
CN104843857A (en) * 2015-04-29 2015-08-19 四川和鼎环保工程有限责任公司 Oxidation ditch using air-injecting extrusion for defoaming

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167447A (en) * 1994-11-09 1997-12-10 安德泽杰·古尔茨 Activated sludge degassing process and device
JP2002239533A (en) * 2001-02-21 2002-08-27 Nippon Shokubai Co Ltd Wastewater treatment method
CN201458880U (en) * 2009-07-13 2010-05-12 煤炭科学研究总院杭州环境保护研究所 Multiple oxidation pretreatment system for organic electroplating waste water
CN201525772U (en) * 2009-09-20 2010-07-14 浙江华强环境科技有限公司 Carbon dioxide removing device in mineral water production
CN101838044A (en) * 2010-03-17 2010-09-22 哈尔滨工业大学 Method and device for eliminating foam Lurgi furnance coal gas wastewater treatment process
CN102040276A (en) * 2010-12-28 2011-05-04 哈尔滨工业大学深圳研究生院 Ozone contact tank and ozone contact method
JP2013034922A (en) * 2011-08-04 2013-02-21 Mitsubishi Heavy Ind Ltd Foam sampler of used discharge seawater

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167447A (en) * 1994-11-09 1997-12-10 安德泽杰·古尔茨 Activated sludge degassing process and device
JP2002239533A (en) * 2001-02-21 2002-08-27 Nippon Shokubai Co Ltd Wastewater treatment method
CN201458880U (en) * 2009-07-13 2010-05-12 煤炭科学研究总院杭州环境保护研究所 Multiple oxidation pretreatment system for organic electroplating waste water
CN201525772U (en) * 2009-09-20 2010-07-14 浙江华强环境科技有限公司 Carbon dioxide removing device in mineral water production
CN101838044A (en) * 2010-03-17 2010-09-22 哈尔滨工业大学 Method and device for eliminating foam Lurgi furnance coal gas wastewater treatment process
CN102040276A (en) * 2010-12-28 2011-05-04 哈尔滨工业大学深圳研究生院 Ozone contact tank and ozone contact method
JP2013034922A (en) * 2011-08-04 2013-02-21 Mitsubishi Heavy Ind Ltd Foam sampler of used discharge seawater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843848A (en) * 2015-04-29 2015-08-19 四川和鼎环保工程有限责任公司 Oxidation ditch for mechanically eliminating bubbles
CN104843857A (en) * 2015-04-29 2015-08-19 四川和鼎环保工程有限责任公司 Oxidation ditch using air-injecting extrusion for defoaming

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