CN101967030B - Integrated filler ammoxidation internal circulation short-distance denitrification process - Google Patents
Integrated filler ammoxidation internal circulation short-distance denitrification process Download PDFInfo
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- CN101967030B CN101967030B CN2010102911129A CN201010291112A CN101967030B CN 101967030 B CN101967030 B CN 101967030B CN 2010102911129 A CN2010102911129 A CN 2010102911129A CN 201010291112 A CN201010291112 A CN 201010291112A CN 101967030 B CN101967030 B CN 101967030B
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Abstract
The invention relates to a technique for processing ammonia-containing waste water with high ammonia nitrogen ratio and low carbon ammonia ratio, which belongs to the field of sewage treatment. In the technique, rectangular reaction unit arrangement is adopted; a water-in mixed region, a nitrosation region, a precipitation region, an ammoxidation region and a separation region are involved; manganese modified sponge fillers are added into the nitrosation region and the ammoxidation region, so that excellent growth of nitrosobacteria is maintained and nitrogen-removing effect is guaranteed; and at the same time, the ammoxidation of the residual ammonia nitrogen in the mixed liquid, nitrate and nitrite is performed, so the effect of waste water treatment is improved.
Description
One, technical field
The present invention relates to a kind of new technology of handling the ammonia-containing water of high ammonia nitrogen, low ratio of carbon to ammonium, belong to the sewage treatment area technology.
Two, technical background
Traditional biological denitrification process such as A/O technology, A
2Deficiencies such as ubiquities such as/O technology initial cost and working cost is higher, operation control complicacy.In recent years; The new bio denitrification process of having developed has: short distance nitration-denitrification process, synchronous nitration-denitrification process, half nitrated (SHARON) technology, limit oxygen autotrophy be nitrated-denitrification (OLAND) technology etc.; Though these technologies can be saved aeration rate greatly, and can significantly reduce the adding of denitrification carbon source in the stage, technological operation is complicated in the actual production; Need to add carbon source, cost increases more.ANAMMOX (Anaerobic Ammonia Oxidation) technology is is electron acceptor(EA) with nitrate salt, with ammonia as the direct electron donor; With nitrate salt, nitrous acid nitrogen transformation is the anti-nitration reaction of nitrogen; This reaction does not need carbon source, has solved the denitrifying carbon source problem preferably.But the ammonia oxidizing bacteria culture condition is strict, and culture cycle is long, and the ammonia nitrogen that concentration is high in the water inlet plays restraining effect to nitrifier, and technical process is long, and floor space is big, running maintenance inconvenience.So ANAMMOX technology is difficult to independent employing in practice generally speaking.
Three, summary of the invention
To the problems referred to above, the present invention proposes a kind of integrated filler ammonia oxidation internal recycle short-cut denitrification technology.
Adopting process flow process of the present invention is as shown in Figure 1.
The present invention adopts the rectangle reaction member to arrange, specifically adopts following technical scheme:
A kind of integrated filler ammonia oxidation internal recycle short-cut denitrification technology adopts the rectangle reaction member to arrange, comprise into water mixing zone, nitrosification district, settling region, ammonia oxidation district, disengaging zone, this technology is:
1. at first waste water gets into distributing well, is two portions by 1: 1 proportional distribution, and wherein a part gets into the water inlet mixing zone, and another part gets into the ammonia oxidation district, through introducing and regulating the recirculation water water yield, the composite waste ammonia nitrogen concentration is reduced to below the 300mg/L;
2. get into the nitrosification district through the waste water after the dilution, add manganese modification sponge filler in this district, the control aeration rate makes dissolved oxygen concentration at 1.0～1.5mg/L, and pH is controlled at 8.0～8.3, and temperature is controlled at 28 ℃, hydraulic detention time 12h;
3. the waste water through above-mentioned processing gets into the settling region with the flow by gravity mode, is provided with sludge reflux pump in this district, realizes the mud continuous backflow with the nitrosification district, and its reflux ratio is 20%;
4. flow into the ammonia oxidation district through the waste water of post precipitation, mixes, add manganese modification sponge filler in the ammonia oxidation district, improve temperature to 32 ℃ with another part water inlet that distributing well distributes, adjusting pH8.0, basicity is (with CaCO
3Meter) 300mg/L, hydraulic detention time 12h;
5. reacted composite waste gets into the disengaging zone, is provided with sludge reflux pump in the disengaging zone, realizes that with the ammonia oxidation district continuous mud refluxes, and reflux ratio is 20%;
6. part supernatant in disengaging zone gets into the water inlet mixing zone through water pump, and a part directly effluxes in addition.Above-mentioned described manganese modification sponge filler is selected commercial sponge for use, processes 1cm
3Small cubes, in 5% mn ion solution, soak 24h, then the oven dry, and press container volume 40%～50% the adding.
The present invention has following distinguishing feature:
Nitrosification of the present invention and ammonia oxidation district are respectively two separate units, are convenient to two bacterioids and cultivate by optimum mode, increase the safety in the actual motion.The ammonia oxidation effluent recycling plays the purpose of dilution water inlet to the mixing zone that intakes, and reduces the inhibition of influent ammonium concentration to the growth of nitrifier or nitrococcus.This technology is main process with the nitrosification district; The ammonia oxidation district is in its external reflux; Can avoid after the two series connection, in the time of can not containing a certain amount of ammonia nitrogen and nitrite owing to the water outlet of nitrosification unit, the difficult problem that the bacterium in the follow-up ammonia oxidation unit just can't survive.
Four, description of drawings:
Fig. 1 is a process flow diagram of the present invention, and wherein 1 is the water inlet mixing zone, and 2 are the nitrosification district, and 3 is the settling region, and 4 are the ammonia oxidation district, and 5 is the disengaging zone
Five, embodiment:
At first waste water promote to get into distributing well through pump, is two portions by 1: 1 proportional distribution then, and wherein a part gets into water inlet mixing zone 1, another part entering ammonia oxidation district 4.Through regulating the recirculation water water yield, the composite waste ammonia nitrogen concentration is reduced to below the 300mg/L.After this district is mixed, get into nitrosification district 2, add manganese modification sponge filler in this district, the control aeration rate makes dissolved oxygen concentration at 1.0～1.5mg/L.PH maintains about 8.0, and temperature is about 28 ℃, and hydraulic detention time is about 12h; According to practical operation situation, proper extension or shorten hydraulic detention time makes that ammonia nitrogen is converted into nitrate salt or nitrite in the waste water; Get into settling region 3 then, sludge reflux pump is set, realize refluxing with nitrosification district 2 in this district; Its reflux ratio is 20%, adopts the continuous backflow mode.The post precipitation mixed solution flows into ammonia oxidation district 4, mixes with another part water inlet that distributing well distributes.Add manganese modification sponge filler in this district, improve about temperature to 32 ℃, regulate pH8.0, basicity is (with CaCO
3Meter) about 300mg/L, cultivate ammonia oxidizing bacteria, make ammonia nitrogen and nitrate salt and nitrite generation ammoxidation in the mixed solution, hydraulic detention time is about 12h.Flow into disengaging zone 5 then, ammonia nitrogen concentration is provided with sludge reflux pump in this district simultaneously less than 20mg/L. under the normal circumstances at this moment, realizes that with ammonia oxidation district 4 mud reflux, and reflux ratio is 20%, adopts the continuous backflow mode.Get in the water inlet mixing zone 1 through water pump at disengaging zone 5 part supernatants, the ammonia nitrogen in the water inlet is played diluting effect, another part directly effluxes.
Claims (2)
1. an integrated filler ammonia oxidation internal recycle short-cut denitrification technology adopts the rectangle reaction member to arrange, comprises into water mixing zone, nitrosification district, settling region, ammonia oxidation district, disengaging zone, it is characterized in that this technology is:
1. at first waste water gets into distributing well, is two portions by 1: 1 proportional distribution, and wherein a part gets into the water inlet mixing zone, and another part gets into the ammonia oxidation district; Disengaging zone part supernatant gets in the water inlet mixing zone through water pump, through introducing and regulating the recirculation water water yield, the composite waste ammonia nitrogen concentration is reduced to below the 300mg/L;
2. get into the nitrosification district through the waste water after the dilution, add manganese modification sponge filler in this district, the control aeration rate makes dissolved oxygen concentration at 1.0～1.5mg/L, and pH is controlled at 8.0～8.3, and temperature is controlled at 28 ℃, hydraulic detention time 12h;
3. the waste water through above-mentioned processing gets into the settling region with the flow by gravity mode, is provided with sludge reflux pump in this district, realizes the mud continuous backflow with the nitrosification district, and its reflux ratio is 20%;
4. flow into the ammonia oxidation district through the waste water of post precipitation, mixes, add manganese modification sponge filler in the ammonia oxidation district, improve temperature to 32 ℃ with another part water inlet that distributing well distributes, adjusting pH8.0, basicity is (with CaCO
3Meter) 300mg/L, hydraulic detention time 12h;
5. reacted composite waste gets into the disengaging zone, is provided with sludge reflux pump in the disengaging zone, realizes that with the ammonia oxidation district continuous mud refluxes, and reflux ratio is 20%;
6. part supernatant in disengaging zone gets into the water inlet mixing zone through water pump, and a part directly effluxes in addition.
2. a kind of integrated filler ammonia oxidation internal recycle short-cut denitrification technology according to claim 1 is characterized in that manganese modification sponge filler selects commercial sponge for use, processes 1cm
3Small cubes, in 5% mn ion solution, soak 24h, oven dry then, and add by 40%～50% of container volume.
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| CN2010102911129A CN101967030B (en) | 2010-09-26 | 2010-09-26 | Integrated filler ammoxidation internal circulation short-distance denitrification process |
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| CN101967030B true CN101967030B (en) | 2012-01-04 |
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| CN103214088A (en) * | 2012-01-21 | 2013-07-24 | 欧联（北京）环境工程有限公司 | Anaerobic ammonium oxidation system based on moving bed biofilm reactor |
| JP5968723B2 (en) * | 2012-08-24 | 2016-08-10 | 株式会社クボタ | Suspended organic matter-containing wastewater treatment system and treatment method |
| CN104278739B (en) * | 2013-07-04 | 2017-03-01 | 格兰富控股联合股份公司 | Prefabricated pumping station system |
| CN104326631B (en) * | 2014-11-05 | 2016-04-27 | 东北电力大学 | A kind of outputted aerobic water is back to anaerobic reactor dilution and the method for Anammox gas treatment waste water |
| CN107311410A (en) * | 2017-08-29 | 2017-11-03 | 江西夏氏春秋环境研究院有限公司 | A kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor |
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| JP4951826B2 (en) * | 2001-08-10 | 2012-06-13 | 栗田工業株式会社 | Biological nitrogen removal method |
| CN1207216C (en) * | 2002-01-25 | 2005-06-22 | 浙江大学 | Process for bio-denitrifying sewage |
| JP3968781B2 (en) * | 2003-03-19 | 2007-08-29 | 株式会社日立プラントテクノロジー | Nitrogen removal method and apparatus |
| JP4284700B2 (en) * | 2004-03-25 | 2009-06-24 | 株式会社日立プラントテクノロジー | Nitrogen removal method and apparatus |
| JP4945891B2 (en) * | 2004-10-18 | 2012-06-06 | 株式会社日立プラントテクノロジー | Operation method of anaerobic ammonia oxidation equipment |
| KR100759833B1 (en) * | 2006-04-21 | 2007-09-18 | 한국과학기술연구원 | Active material for biological treatment of sewage and waste water, microbic media containing the active material and method for preparing the same |
| JP5143524B2 (en) * | 2007-10-23 | 2013-02-13 | アサヒグループホールディングス株式会社 | Method and apparatus for treating wastewater from food production |
| CN101302059B (en) * | 2008-06-24 | 2011-10-19 | 大连理工大学 | Inverted denitrification process film bioreactor |
| CN101817621B (en) * | 2010-04-23 | 2013-04-03 | 北京工业大学 | Semi-denitrification-based wastewater treatment technology |
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