CN1312053C - Ammonia adding and mixig system for clear water pond - Google Patents
Ammonia adding and mixig system for clear water pond Download PDFInfo
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- CN1312053C CN1312053C CNB2005100866096A CN200510086609A CN1312053C CN 1312053 C CN1312053 C CN 1312053C CN B2005100866096 A CNB2005100866096 A CN B2005100866096A CN 200510086609 A CN200510086609 A CN 200510086609A CN 1312053 C CN1312053 C CN 1312053C
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Abstract
The present invention relates to an ammonia addition and mixture implementing system in a clear water pond, which belongs to the technical field of drinking water treatment. The ammonia addition and mixture implementing system is characterized in that: an ammonia addition point is arranged inside a clear water pond; the clear water pond is divided into a free chlorine disinfection contact section, an ammonia addition and mixture section and a chloramine disinfection section by a diversion partition wall and an overflow weir at the ammonia addition point, wherein the free chlorine disinfection contact section and the ammonia addition and mixture section are designed to be sections with a constant water level; the main body of the clear water pond is the chloramine disinfection section and runs at a variable water level; the diversion partition wall between the free chlorine disinfection contact section and the ammonia addition and mixture section is provided with diversion orifices or diversion seams for receiving ammonia addition tubes; in order to prevent short flows of disinfectant, a plurality of training walls are arranged inside the pond. The ammonia addition and mixture implementing system is easy to implement a water treatment disinfection method by sequential short-time free chlorine disinfection and chloramine disinfection; the design of the structure of the clear water pond, the ammonia addition point and a mixing device can ensure that chlorine or ammonia is completely, rapidly and uniformly dissolved in water, and evolution and short flows of chlorine or ammonia do not occur.
Description
Technical field
The present invention relates to ammonification and blended implementation system in a kind of clean water basin, especially relate to a kind of in drinking water treatment, the employing when changeing the order water treatment sterilization method of chloramines behind the free chlorine in short-term, need in clean water basin, implement ammonification and blended structure design and device, belong to technical field of drinking water treatment.
Background technology
At present sterilisation system commonly used comprises behind free chlorine, chloramines, the first chlorine ammonia sterilisation system etc. in the drinking water treatment field, and wherein back two kinds of systems need chlorination and ammonia, as shown in Figure 1.
1. free chlorine sterilization is to add chlorine in the pipeline before clean water basin, adopts free chlorine to come microorganism in the deactivation water as sterilizing agent in whole clean water basin and water supply network.
Chloramines disinfection be in the pipeline before clean water basin simultaneously or adding chlorine and ammonia at interval less than the hydraulic detention time of 2min, the chloramines that adopts the chemical combination attitude in whole clean water basin and water supply network comes microorganism in the deactivation water as sterilizing agent.
3. the ammonia sterilization is a chlorination in the clean water basin preceding pipeline behind the first chlorine, ammonification transfers the sterilization process of chloramines in the clean water basin outlet conduit, promptly adopt free chlorine to come microorganism in the deactivation water as sterilizing agent at whole clean water basin, the chloramines that adopts the chemical combination attitude in water supply network comes microorganism in the deactivation water as sterilizing agent.
In sum, chlorine, ammonia normally adopt pipe method to add and mix in drinking water disinfection is handled, and the position that adds is before clean water basin or behind the clean water basin, do not design and add with blended in clean water basin inside.The applicant is in last patent application " the order water treatment sterilization method of commentaries on classics chloramines behind the free chlorine in short-term " (patent publication No.: CN1583591, open day: proposed ammonification in clean water basin on February 23rd, 2005), free chlorine sterilization is converted into the technology of chloramines disinfection, The present invention be directed to a kind of concrete implementation system of this technology.
Summary of the invention
The object of the present invention is to provide ammonification and well-mixed implementation system in a kind of clean water basin,, satisfy the requirement that free chlorine in the water is converted into chloramines to adapt to ammonification in clean water basin in the order water treatment sterilization method that changes chloramines behind the free chlorine in short-term.
Ammonification and blended implementation system in a kind of clean water basin that the present invention proposes is characterized in that: described system contains free chlorine sterilization section 1, ammonification mixing section 2, chloramines disinfection section 3, water inlet pipe 4, rising pipe 5, overflow weir 6, water conservancy diversion partition wall 7, chlorination point 8, ammonification pipe 9, water conservancy diversion partition wall 10, inspection-pit 11; Described ammonification pipe 9 is arranged in the clean water basin; Described clean water basin are divided into three parts by the water conservancy diversion partition wall [7] at ammonification point place and overflow weir 6: free chlorine sterilization contact segment 1, ammonification mixing section 2 and chloramines disinfection section 3; [2 parts adopt permanent water level design for described free chlorine sterilization contact segment 1 and ammonification mixing; The main part of described clean water basin is a chloramines disinfection section 3, becomes the water level operation; Water conservancy diversion aperture or water conservancy diversion seam are set on the described water conservancy diversion partition wall 10 between free chlorine sterilization contact segment 1 and ammonification mixing section 2, ammonification pipe [9] is arranged on water conservancy diversion aperture or water conservancy diversion seam place, multiple tracks training wall 7 is set in the pond.
In above-mentioned implementation system, described ammonification point 8 contains ammonification pipe inspection-pit 11 outside interior ammonification pipe 9 of clean water basin and the pond; Ammonia adding System is made up of ammonification straight tube, stopping valve, bend pipe flange in the described inspection-pit 11; The ammonification pipe penetrates the clear water pool wall and inserts below the water surface, when ammonification pipe plug plug, can fasten stopping valve and cut off ammonification, dismantle the bend pipe flange then, the ammonification straight tube is extracted from clean water basin, reinstall total system after changing standby ammonification pipe then or dredging the ammonification pipe.
Ammonification and blended implementation system in a kind of clean water basin that the present invention proposes have the following advantages:
(1) can in the waterworks, implement " changeing the order water treatment sterilization method of chloramines in short-term behind the free chlorine ";
(2) can guarantee that required free chlorine disinfecting time does not change with the fluctuation of clean water basin water level;
(3) design of clean water basin structure, ammonification point and mixing device can guarantee chlorine or ammonia fully, fast, be dissolved in the water equably, does not produce phenomenons such as the effusion of chlorine or ammonia, short stream;
(4) ammonification pipe unit easy accessibility is convenient to the maintenance after the fouling of the long-time running mouth of pipe;
(5) operation is simple, and cost is not high, is convenient to water factory and adopts enforcement.
Description of drawings
Fig. 1 is that the sterilization process embodiment relatively: ammonia sterilization and the order water treatment sterilization of changeing chloramines in short-term behind the free chlorine behind free chlorine sterilization, chloramines disinfection, the first chlorine.
Fig. 2 is the clean water basin general layout mode chart (embodiment one) of employing order cholorination technology.
Fig. 3 is a clean water basin ammonification conversion zone partial plan layout.
Fig. 4 be clean water basin ammonification conversion zone local with ammonification pipe inspection-pit vertical planning drawing (
The A-A section).
Fig. 5 be ammonification pipe inspection-pit vertical planning drawing (
The B-B section).
The clean water basin partial plan layout (embodiment two) of Fig. 6 JY water factory employing order cholorination technology.
Fig. 7 ammonification pipe inspection-pit partial plan layout (embodiment two).
Local and the ammonification pipe inspection-pit vertical planning drawing (embodiment two) of Fig. 8 clean water basin.
The clean water basin site-plan (embodiment three) of Fig. 9 JY water factory employing order cholorination technology.
The clean water basin site-plan (embodiment three) of Figure 10 JY water factory employing order cholorination technology.
Embodiment
Below in conjunction with accompanying drawing and two embodiment (comprising three kinds of embodiments) technical solution of the present invention is described further:
Ask for an interview Fig. 1.A-free chlorine sterilization, b-chloramines disinfection, the order water treatment sterilization of chloramines is changeed in ammonia sterilization behind c-first chlorine behind the free chlorine of d-in short-term.
Ask for an interview Fig. 2.1-free chlorine sterilization section, 2-ammonification mixing section, 3-chloramines disinfection section, 4-water inlet pipe, 5-rising pipe, 6-overflow weir, 7-water conservancy diversion partition wall, 8-chlorination point, 9-ammonification point.
Ask for an interview Fig. 3.4-water inlet pipe, 6-overflow weir, 7-water conservancy diversion partition wall (dotted line position is following aperture), 8-chlorination point, 9-ammonification pipe, 10-water conservancy diversion partition wall (going up the aperture), 11-inspection-pit.
The clean water basin general layout mode chart (embodiment one) of Fig. 2 employing order cholorination technology, ammonification point 9 is arranged in the clean water basin.Diversed partition wall 7 of whole clean water basin and overflow weir 6 are divided into three parts: free chlorine sterilization contact segment 1, ammonification mixing section 2 and chloramines disinfection section 3, as shown in Figure 2.For guaranteeing that required free chlorine disinfecting time does not change with the fluctuation of clean water basin water level, free chlorine disinfectant contact segment and ammonification mixing section partly adopt permanent water level design in the clean water basin, realize by the overflow weir 6 that is provided with in ammonification mixing section 2 exits.Free chlorine sterilization contact segment 1 inside is provided with water conservancy diversion partition wall 7, makes that current are the plug-flow state in the pond, to keep effective duration of contact of sterilizing agent free chlorine and water.The main part of clean water basin is a chloramines disinfection section 3, becomes the water level operation, to satisfy the requirement of pondage before total sterilization duration of contact and the water factory's secondary pump station.
Ask for an interview Fig. 4.1-free chlorine sterilization section, 2-ammonification mixing section, 3-chloramines disinfection section, 4-water inlet pipe, 6-overflow weir, 7-water conservancy diversion partition wall (following aperture), 8-chlorination point, 9-ammonification pipe, 10-water conservancy diversion partition wall (going up the aperture), 11-inspection-pit.
Ask for an interview Fig. 5.9-ammonification pipe, 10-water conservancy diversion partition wall (going up the aperture), 11-inspection-pit.
The design of ammonification point comprises ammonification pipe 9 and the outer ammonification pipe inspection-pit 11 of clean water basin in the clean water basin, shown in Fig. 4,5.Ammonia adding System is made up of ammonification straight tube, stopping valve, bend pipe flange in the inspection-pit.The ammonification pipe penetrates the clear water pool wall and inserts below the water surface.When ammonification pipe plug plug, can fasten stopping valve and cut off ammonification, dismantle the bend pipe flange then, the ammonification straight tube is extracted from clean water basin, reinstall total system after changing standby ammonification pipe then or dredging the ammonification pipe.
The short mix design is that water conservancy diversion aperture or water conservancy diversion seam are set on the water conservancy diversion partition wall 10 between free chlorine sterilization contact segment and ammonification mixing section after the ammonification, ammonification pipe 9 is arranged on water conservancy diversion aperture or water conservancy diversion seam place, the mouth of pipe does not have in the entry, guarantee ammonia and the water uniform mixing added, and with chlorine rapid reaction generation monochloro amine.In order to guarantee the rapid reaction of chlorine and ammonia, in the ammonification mixing section, also be provided with training wall 7 and water conservancy diversion aperture, laterally and longitudinally mixing to guarantee chlorine and ammonia, shown in accompanying drawing 3,4.
Pilot scale research through certain water factory shows that this implementation system can satisfy the requirement that " the order water treatment sterilization method that changes chloramines in short-term behind the free chlorine " adopted in the waterworks, and guarantees the dual control effect of this sterilization process to microorganism and disinfection byproduct (DBP).
Clean water basin structure design principle in the pilot scale research as mentioned above.Chlorination in the clean water basin water inlet pipe, through after the free chlorine in short-term of 10min sterilization duration of contact, ammonification in clean water basin is provided with multiple tracks water conservancy diversion partition wall and the aperture is set on partition wall and satisfies and mix requirement in the pond.Hydraulic detention time is a 5min place sampling and measuring in ammonification point back, shows that free chlorine has been converted into monochloro amine fully, has realized being converted into fully, apace after free chlorine is sterilized in short-term the requirement of chloramines.Field test data shows, adopt the clean water basin of this inventive principle design, can guarantee " changeing the order water treatment sterilization method of chloramines in short-term behind the free chlorine " dual control effect: be suitable the sterilisation effect of total plate count, total coli group and virus and traditional chlorine disinfectant to microorganism and disinfection byproduct (DBP); The growing amount of main disinfection byproduct (DBP) haloform, halogen acetic acid has reduced more than 50%; The sterilizing agent dosage obviously is less than chlorine disinfectant simultaneously, and disinfection cost is roughly the same.
It is lower that the present invention can be widely used in the source water ammonia nitrogen concentration, the suitable employing " changeed the order water treatment sterilization method of chloramines " in short-term behind the free chlorine waterworks.
The present invention is in water factory's sterilization process, add chlorine earlier and carry out the free chlorine sterilization, after suitable duration of contact (be generally less than 30min, be shorter than conventional chlorine disinfectant duration of contact), in water, add ammonia again, free chlorine in the water is converted into chloramines, proceeds chloramines disinfection.Clean water basin adopt special structure to adjust the requirement of duration of contact of free chlorine sterilization in short-term to satisfy.
Newly-built JB water factory of Tianjin Water Co. adopts " the order water treatment sterilization method that changes chloramines in short-term behind the free chlorine ", and adopts the principle of the invention to implement.This water factory designs total water supply capacity 500,000 m
3/ day, two large-scale fair-faced ponds are arranged.Its specific implementation method is as follows.
Embodiment one:
Water conservancy diversion partition wall and overflow weir are set in clean water basin, clean water basin are divided into the section of free chlorine sterilization in short-term 1, chlorine ammonia mixing section 2 and chloramines disinfection section 3, referring to accompanying drawing 2.At clean water basin water inlet pipe 4 chlorination point 8 is set, is about the 10min place at the clean water basin hydraulic detention time ammonification point 9 is set.Be about the 15min place at hydraulic detention time overflow weir 6 is set, permanent water level operation guarantees that free chlorine sterilization in short-term is constant duration of contact.For free chlorine sterilization contact segment 1, between ammonification point 9 and the overflow weir 6 chlorine ammonia mixing section 2 before the ammonification point.The specific design of ammonification point is on preceding two intersegmental water conservancy diversion partition walls 10 upper water conservancy diversion aperture to be set, and ammonification pipe releasing section is inserted the aperture, and adopts the perforated pipe design to mix to guarantee ammonification and chlorine, ammonia.In order to eliminate the sterilization dead angle, improve inactivating efficacy, training wall is set in clean water basin, and the aperture is set, referring to accompanying drawing 3, Fig. 4 and Fig. 5 in the training wall corresponding position.
Adopt " the order cholorination technology of changeing chloramines in short-term behind the free chlorine " during JY water factory of Tianjin Water Co. transforms, and adopt the present invention specifically to implement.Possible implementation has two kinds, according to physical condition, finally selects embodiment three in construction.This water factory is the reconstruction project on original water factory basis, designs total water supply capacity 500,000 m
3/ day.The clean water basin of this water factory comprise two portions: a small-sized Round Sump antisepsis contact tank and an original branch that is arranged on below, newly-built air-float purification workshop is built the formula clear-water reservoir, both series operations.The hydraulic detention time of small-sized antisepsis contact tank is about 30min, and the exit is provided with overflow weir, permanent water level operation; The hydraulic detention time of clear-water reservoir is about 60min, becomes the water level operation.
Embodiment two:
Ask for an interview Fig. 6.1-flocculation basin, 2-clean water basin, 3-ammonification inspection-pit, 4-water conservancy diversion partition wall, 5-ammonification releasing tube.
Ask for an interview Fig. 7.2-clean water basin, 3-ammonification inspection-pit, 5-ammonification releasing tube, 6-manhole, 7-catch pit, 8-ammonification house steward, 9-stopping valve, 10-bend pipe flange.
Ask for an interview Fig. 8.1-air flotation pool, 2-clean water basin, 3-ammonification inspection-pit, 5-ammonification releasing tube, 6-manhole, 7-catch pit, 8-ammonification house steward, 11-cat ladder.
Establish the chlorination point at the water inlet manifold of small-sized antisepsis contact tank 2, adopt water sprayer to add, and pass through line-blending.Hydraulic detention time is about the 15min place ammonification point is set in clean water basin.In the clean water basin left side ammonification pipe inspection-pit 3 is set, adopts the water sprayer ammonification, and ammonification releasing tube 5 is penetrated the pool wall insertion water, shown in Fig. 6,7,8 from clean water basin one side.The ammonification guard system is made up of ammonification house steward 8, stopping valve 9, bend pipe flange 10 and releasing tube 5, and the ammonification pipe does not have the part of upstream face to design for perforated pipe.When the ammonification pipe stops up because of reasons such as foulings, can fasten stopping valve 9 and cut off ammonification, dismantle bend pipe flange 10 then, straight releasing tube 5 is extracted from clean water basin, change standby ammonification pipe then and reinstall total system, shown in Fig. 7,8.For satisfy after the ammonification thorough mixing and chlorine, ammonia reacts fully apace and generates monochloro amine.At ammonification point place three road water conservancy diversion partition walls 4 are set.In addition,, prevent short stream, training wall is set in clean water basin to form the pulling flow type fluidised form in order to eliminate the sterilization dead angle.
Embodiment three:
Ask for an interview Fig. 9.1-flocculation basin, 2-clean water basin, 3-water inlet pipe, 4-chlorination point, 5-clean water basin ventilation opening, 6-ammonification point, 7-water conservancy diversion partition wall, 8-rising pipe, 9-high-pressure water pipe, 10-ammonia pipe, 11-chlorine tube.
Ask for an interview Figure 10.1-air flotation pool, 2-clean water basin, 5-clean water basin ventilation opening, 6-ammonification pipe, 12-bend pipe flange, 13-releasing tube (perforated pipe design), 14-positioning base.
Establish the chlorination point at the water inlet manifold of small-sized antisepsis contact tank, adopt water sprayer to add, and pass through line-blending.Hydraulic detention time is about the 15min place ammonification point 6 is set in clean water basin.Adopt the water sprayer ammonification, and the ammonification pipe is inserted below the clean water basin liquid level, shown in Fig. 9,10 from the clean water basin ventilation opening 5 that is arranged on this position.The design of Ammonia adding System, water conservancy diversion partition wall together
Embodiment two.
Claims (2)
1, ammonification and blended implementation system in a kind of clean water basin, it is characterized in that: described system contains free chlorine sterilization section [1], ammonification mixing section [2], chloramines disinfection section [3], water inlet pipe [4], rising pipe [5], overflow weir [6], water conservancy diversion partition wall [7], chlorination pipe [8], ammonification pipe [9], water conservancy diversion partition wall [10], inspection-pit [11]; Described ammonification pipe [9] is arranged in the clean water basin; Described clean water basin are divided into three parts by the water conservancy diversion partition wall [7] at ammonification point place and overflow weir [6]: free chlorine sterilization contact segment [1], ammonification mixing section [2] and chloramines disinfection section [3]; Described free chlorine sterilization contact segment [1] and ammonification mixing section [2] part adopt permanent water level design; The main part of described clean water basin is chloramines disinfection section [3], becomes the water level operation; Water conservancy diversion aperture or water conservancy diversion seam are set on the described water conservancy diversion partition wall [10] between free chlorine sterilization contact segment [1] and ammonification mixing section [2], ammonification pipe [9] is arranged on water conservancy diversion aperture or water conservancy diversion seam place, multiple tracks training wall [7] is set in the pond.
2, according to the described implementation system of claim 1, it is characterized in that: described ammonification point is positioned between free chlorine sterilization contact segment [1] and the ammonification mixing section [2], and outside this interval is provided with in the clean water basin ammonification pipe [9] and pond ammonification pipe inspection-pit [11]; The interior Ammonia adding System of described inspection-pit [11] is made up of ammonification straight tube, stopping valve, bend pipe flange; The ammonification pipe penetrates the clear water pool wall and inserts below the water surface, when ammonification pipe plug plug, can fasten stopping valve and cut off ammonification, dismantle the bend pipe flange then, the ammonification straight tube is extracted from clean water basin, reinstall total system after changing standby ammonification pipe then or dredging the ammonification pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100866096A CN1312053C (en) | 2005-10-14 | 2005-10-14 | Ammonia adding and mixig system for clear water pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100866096A CN1312053C (en) | 2005-10-14 | 2005-10-14 | Ammonia adding and mixig system for clear water pond |
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| Publication Number | Publication Date |
|---|---|
| CN1772640A CN1772640A (en) | 2006-05-17 |
| CN1312053C true CN1312053C (en) | 2007-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100866096A Expired - Fee Related CN1312053C (en) | 2005-10-14 | 2005-10-14 | Ammonia adding and mixig system for clear water pond |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805078B (en) * | 2010-05-05 | 2012-07-18 | 陈先土 | Water purification system with guide walls and construction method and water treatment technology thereof |
| CN102336463B (en) * | 2010-07-16 | 2014-06-25 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| RU2663039C2 (en) * | 2017-01-10 | 2018-08-01 | Общество с ограниченной ответственностью "Полимеры" | Method for optimizing chlorammonization of drinking water |
| CN111480656A (en) * | 2020-04-30 | 2020-08-04 | 同济大学 | Method suitable for efficiently preparing high-concentration disinfectant monochloramine in water works |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137639A (en) * | 1991-05-09 | 1992-08-11 | Ppg Industries, Inc. | Method for purifying waste water using surface modified silica |
| JPH05277492A (en) * | 1992-03-31 | 1993-10-26 | Kubota Corp | Method for treatment of reclamation drained water |
| CN1583591A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Sequential water treating and sterilizing method by chloramine after short free chlorine |
-
2005
- 2005-10-14 CN CNB2005100866096A patent/CN1312053C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137639A (en) * | 1991-05-09 | 1992-08-11 | Ppg Industries, Inc. | Method for purifying waste water using surface modified silica |
| JPH05277492A (en) * | 1992-03-31 | 1993-10-26 | Kubota Corp | Method for treatment of reclamation drained water |
| CN1583591A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Sequential water treating and sterilizing method by chloramine after short free chlorine |
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