CN100522850C - Method for treating waste water of 1,4-butanediol production - Google Patents
Method for treating waste water of 1,4-butanediol production Download PDFInfo
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- CN100522850C CN100522850C CNB2007100779379A CN200710077937A CN100522850C CN 100522850 C CN100522850 C CN 100522850C CN B2007100779379 A CNB2007100779379 A CN B2007100779379A CN 200710077937 A CN200710077937 A CN 200710077937A CN 100522850 C CN100522850 C CN 100522850C
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- equalizing tank
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Abstract
The process of treating waste water from 1, 4-butanediol includes the following steps: passing the waste water through one mechanical grille to eliminate large floatage, homogenizing with one submerged stirrer in a regulating pond, treating in one SBR reactor, treating sludge in a pressure filter, monitoring the water quality in a monitoring pond, returning the water under the discharge standard to the regulating pond for further treatment and discharging after reaching the discharge standard. The process is suitable for treating organic waste water with high toxicity and high concentration.
Description
Technical field:
The present invention relates to method of wastewater treatment, particularly a kind of 1, the treatment process of 4-butyleneglycol factory effluent.
Background technology:
Existing popular technology is that the method that preliminary sedimentation tank+equalizing tank+anaerobic pond+anoxic pond+Aerobic Pond+second pond is set handles 1,4-butyleneglycol factory effluent.Its shortcoming has: the first, complex process, and the reference mark is more; The second, 1, the organism in the 4-butyleneglycol factory effluent is low molecule catenate material substantially, and is then not obvious in anaerobism section and anoxic section treatment effect; Three, floor space is big, one-time investment cost height.
Summary of the invention:
The object of the present invention is to provide a kind of 1, the treatment process of 4-butyleneglycol factory effluent, utilize this method to handle 1,4-butyleneglycol factory effluent toxicity is big, investment is little, instant effect, stable effluent quality, be convenient to management and operation, can realize automatization control fully.
Formation of the present invention: by mechanical grille, equalizing tank, N-NH
3Storage tank, phosphoric acid salt storage tank, sbr reactor device, Root's blower, monitoring pond, accident pool, collection mud sump and sludge press filtration system form, and are aided with PH, COD, N-NH
3, liquidometer, MLSS, DO, ORP on-line monitoring instrument, 1,4-butyleneglycol factory effluent, the mechanical grille of flowing through is earlier removed big floating matter and bigger particle, after enter equalizing tank, in equalizing tank, be provided with the diving mixer continuously stirring, make former water thorough mixing even, by lift pump waste water sent into the sbr reactor device and handle, through aeration, precipitate, strain water, idle operation is finished one-period; Pass through the aerobic degradation organism at the aeration aerobic stage, and control in this stage DO concentration at 3-4mg/L, the frequency transformer interlocking of DO on-line monitoring instrument and Root's blower, guarantee the concentration of DO, ORP on-line monitoring instrument is as the redox ability of judging aerobic stage, the i.e. processing power of sbr reactor device; Automatically start the diving mixer stirring in water inlet and idle stage, carry out anaerobism+hypoxia response, remove COD, N-NH simultaneously
3, TP, in the idle stage, when the concentration of MLSS on-line monitoring instrument during greater than 8000mg/L, automatically open the spoil disposal angle valve that surges and carry out spoil disposal, when the concentration of MLSS during less than 4000mg/L, close the spoil disposal angle valve automatically, mud is handled by filter-press dehydration, the filter cake outward transport, press filtration water returns equalizing tank and handles; Draining enters the monitoring pond, in the monitoring pond under the monitoring of COD on-line monitoring instrument, reaches or is better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard and then efflux, and handles otherwise will start monitoring pumped back equalizing tank automatically again.
Be provided with PH, COD, N-NH at equalizing tank
3, liquidometer on-line monitoring instrument, control comes PH, COD, the N-NH in the water
3, 1. as the COD in the equalizing tank during greater than 1000mg/L, starting sewage pump automatically, to switch to accident pool temporary, and handle from a spot of equalizing tank that is delivered to of accident pool the back again; 2. work as the CH in the equalizing tank
3The concentration of OH and HCHO is during all greater than 50mg/L, and it is temporary to switch to accident pool, and handle from a spot of equalizing tank that is delivered to of accident pool the back again, because of CH
3OH, HCHO toxicity are big, when if concentration surpasses 50mg/L, microbe population gradually reduces, even be destroyed fully, the active sludge come-up, effluent quality worsens: 3. nitrogenous source and phosphorus source adds, because 1, nitrogenous source in the 4-butyleneglycol factory effluent, phosphorus source seldom, when the C:N:P of mixed solution water outlet in the sbr reactor device out of proportion, microbial numbers reduces accordingly, the water quality of water outlet also will can not get guaranteeing, nitrogenous source need be set in event and the phosphorus source adds storage tank, and automatic or manual timing adds in equalizing tank, makes COD, BOD in the water outlet
5, CH
3OH, HCHO water quality all reach or are better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard.
Compared with the prior art, the present invention is by mechanical grille, equalizing tank, N-NH
3Storage tank, phosphoric acid salt storage tank, sbr reactor device, Root's blower, monitoring pond, accident pool, collection mud sump and sludge press filtration system form, and are aided with PH, COD, N-NH
3, liquidometer, MLSS, DO, ORP on-line monitoring instrument.It has following advantage: the first, 1, and COD, BOD, CH in the 4-butyleneglycol factory effluent
3OH, HCHO change in concentration are big, and toxicity is also big, by on-line monitoring instrument or its concentration of personal monitoring, adjusting process that can be in good time; The second, CH
3OH, HCHO can effectively remove, and avoid polluted source or river, and non-secondary pollution produces; The 3rd, a whole set of treatment process can realize automatic control, is easy to management maintenance, and floor space is about 2/3 of existing treatment process; The four, 1, the disposal methods efficient height of 4-butyleneglycol factory effluent in case after the activated sludge acclimatization maturation, finite concentration poisonous substance matter is converted into innoxious material, can guarantee the continuity and the stability of water outlet.
Description of drawings:
Accompanying drawing is a process flow sheet of the present invention.
Embodiment:
1,4-butyleneglycol factory effluent, the mechanical grille of flowing through earlier, remove big floating matter and bigger particle, after enter equalizing tank, in equalizing tank, be provided with the diving mixer continuously stirring, make former water thorough mixing even, by lift pump waste water is sent into the sbr reactor device and handles, through aeration, precipitate, strain water, idle operation is finished one-period; Pass through the aerobic degradation organism at the aeration aerobic stage, and control in this stage DO concentration at 3-4mg/L, the frequency transformer of DO on-line monitoring instrument and Root's blower is chain, guarantee the concentration of DO, ORP on-line monitoring instrument is as the redox ability of judging aerobic stage, the i.e. processing power of sbr reactor device; Automatically start the diving mixer stirring in water inlet and idle stage, carry out anaerobism+hypoxia response, remove COD, N-NH simultaneously
3, TP, in the idle stage, when the concentration of MLSS on-line monitoring instrument during greater than 8000mg/L, automatically open the spoil disposal angle valve that surges and carry out spoil disposal, when the concentration of MLSS during less than 4000mg/L, close the spoil disposal angle valve automatically, mud is handled by filter-press dehydration, the filter cake outward transport, press filtration water returns equalizing tank and handles; Draining enters the monitoring pond, in the monitoring pond under the monitoring of COD on-line monitoring instrument, reaches or is better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard and efflux, and handles otherwise will start monitoring pumped back equalizing tank automatically again.
Be provided with PH, COD, N-NH at equalizing tank
3, liquidometer on-line monitoring instrument, control comes PH, COD, the N-NH in the water
3, 1. as the COD in the equalizing tank during greater than 1000mg/L, starting sewage pump automatically, to switch to accident pool temporary, and handle from a spot of equalizing tank that is delivered to of accident pool the back again; 2. work as the CH in the equalizing tank
3The concentration of OH and HCHO is during all greater than 50mg/L, and it is temporary to switch to accident pool, and a spot of equalizing tank that is delivered to of back accident pool is handled again, because of CH
3OH, HCHO toxicity are big, when if concentration surpasses 50mg/L, microbe population gradually reduces, even be destroyed fully, the active sludge come-up, effluent quality worsens: 3. nitrogenous source and phosphorus source adds, because 1, nitrogenous source in the 4-butyleneglycol factory effluent, phosphorus source seldom, when the C:N:P of mixed solution water outlet in the sbr reactor pond out of proportion, microbial numbers reduces accordingly, the water quality of water outlet also will can not get guaranteeing, nitrogenous source need be set in event and the phosphorus source adds storage tank, and automatic or manual timing adds in equalizing tank, makes COD, BOD in the water outlet
5, CH
3OH, HCHO water quality all reach or are better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard.
1. it is definite to guarantee that technology runs well
The water-quality guideline in per cycle of operation sampling analysis equalizing tank, sbr reactor device and monitoring pond, the water-quality guideline of strict each operation of control can guarantee that effluent quality reaches or is better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard.
A, as the COD in the equalizing tank during greater than 1000mg/L, it is temporary to switch to accident pool, handle from a spot of equalizing tank that is delivered to of accident pool the back again;
B, the CH in equalizing tank
3The concentration of OH and HCHO is during all greater than 50mg/L, and it is temporary to switch to accident pool, and a spot of equalizing tank that is delivered to of back accident pool is handled again.
C, when the C:N:P of mixed solution water outlet in the sbr reactor device out of proportion, microbial numbers reduces accordingly, the water quality of water outlet also will can not get guaranteeing, so nitrogenous source must be set and the phosphorus source adds storage tank, automatic or manual timing adds in equalizing tank.
D, keep mixed solution MLSS in the sbr reactor device concentration between 2500-4000mg/L, SV
30Between 15-30%, SVI is between 50-100, and temperature is between 10-35 ℃, and DO is between 3-4mg/L.
2, precaution in service
A, pay special attention to control and enter CH before the sbr reactor device
3The concentration of OH and HCHO is all less than 50mg/L, CH
3OH, HCHO toxicity are big, if when concentration surpasses design load 50mg/L, microbe population gradually reduces, even is destroyed fully, the active sludge come-up, and effluent quality worsens.
B, according to the water examination in each periodic adjustment pond report, timely adjusting process.
The on-line monitoring instrument is proofreaded in c, timing, guarantees the normal operation of whole technology.
This treatment process is applied in the chemical plant, Sichuan, Inlet and outlet water water quality sees the following form, continuously the operation effluent quality is more stable from August 18,21 days to 2006 September in 2005, and average effluent quality all reaches or is better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard; COD
CrClearance is 94%, BOD
5Clearance is 98.3%, CH
3The OH clearance is 90%, and the HCHO clearance is 98%; Present method is checked and accepted by national environmental protection monitoring master station sampling analysis 15～16 August in 2006 and is passed through.Adopt present method to handle 1 in a word, the water outlet of 4-butyleneglycol factory effluent is respond well, has obtained certain economic benefits and social benefit.
Inlet and outlet water water quality table
| Project | PH | COD cr | BOD 5 | SS | CH 3OH | HCHO | N-NH 3 | TP |
| Water inlet | 6～9 | ≤1000mg/L | ≤600mg/L | ≤200mg/L | ≤50mg/L | ≤50mg/L | ≤50mg/L | ≤10mg/L |
| Water outlet | 6～9 | ≤60mg/L | ≤10mg/L | ≤50mg/L | ≤5mg/L | ≤1mg/L | ≤10mg/L | ≤0.5mg/L |
Claims (2)
1. one kind 1, the treatment process of 4-butyleneglycol factory effluent is by mechanical grille, equalizing tank, N-NH
3Storage tank, phosphoric acid salt storage tank, sbr reactor device, Root's blower, monitoring pond, accident pool, collection mud sump and sludge press filtration system form, and are aided with pH, COD, N-NH
3, liquidometer, MLSS, DO, ORP on-line monitoring instrument, it is characterized in that: 1,4-butyleneglycol factory effluent, the mechanical grille of flowing through is earlier removed big floating matter and bigger particle, after enter equalizing tank, in equalizing tank, be provided with the diving mixer continuously stirring, make former water thorough mixing even, by lift pump waste water sent into the sbr reactor device and handle, through aeration, precipitate, strain water, idle operation is finished one-period; Pass through the aerobic degradation organism at the aeration aerobic stage, and control in this stage DO concentration at 3-4mg/L, the frequency transformer interlocking of DO on-line monitoring instrument and Root's blower, guarantee the concentration of DO, ORP on-line monitoring instrument is as the redox ability of judging aerobic stage, the i.e. processing power of sbr reactor device; Automatically start the diving mixer stirring in water inlet and idle stage, carry out anaerobism+hypoxia response, remove COD, N-NH simultaneously
3, TP, in the idle stage, when the concentration of MLSS on-line monitoring instrument during greater than 8000mg/L, automatically open the spoil disposal angle valve that surges and carry out spoil disposal, when the concentration of MLSS during less than 4000mg/L, close the spoil disposal angle valve automatically, mud is handled by filter-press dehydration, the filter cake outward transport, press filtration water returns equalizing tank and handles; Draining enters the monitoring pond, in the monitoring pond under the monitoring of COD on-line monitoring instrument, reaches or is better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard and then efflux, and handles otherwise will start monitoring pumped back equalizing tank automatically again.
2. according to claim 1 a kind of 1, the treatment process of 4-butyleneglycol factory effluent is characterized in that: be provided with pH, COD, N-NH at equalizing tank
3, liquidometer on-line monitoring instrument, control comes pH, COD, the N-NH in the water
3, 1. as the COD in the equalizing tank during greater than 1000mg/L, starting sewage pump automatically, to switch to accident pool temporary, and handle from a spot of equalizing tank that is delivered to of accident pool the back again; 2. work as the CH in the equalizing tank
3The concentration of OH and HCHO is during all greater than 50mg/L, and it is temporary to switch to accident pool, and handle from a spot of equalizing tank that is delivered to of accident pool the back again, because of CH
3OH, HCHO toxicity are big, when if concentration surpasses 50mg/L, microbe population gradually reduces, even be destroyed fully, the active sludge come-up, effluent quality worsens: 3. nitrogenous source and phosphorus source adds, because 1, nitrogenous source in the 4-butyleneglycol factory effluent, phosphorus source seldom, when the C:N:P of mixed solution water outlet in the sbr reactor device out of proportion, microbial numbers reduces accordingly, the water quality of water outlet also will can not get guaranteeing, nitrogenous source need be set in event and the phosphorus source adds storage tank, and automatic or manual timing adds in equalizing tank, makes COD, BOD in the water outlet
5, CH
3OH, HCHO water quality all reach or are better than the GB8978-1996 of country's " integrated wastewater discharge standard " first discharge standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100779379A CN100522850C (en) | 2007-09-14 | 2007-09-14 | Method for treating waste water of 1,4-butanediol production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100779379A CN100522850C (en) | 2007-09-14 | 2007-09-14 | Method for treating waste water of 1,4-butanediol production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101148305A CN101148305A (en) | 2008-03-26 |
| CN100522850C true CN100522850C (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100779379A Expired - Fee Related CN100522850C (en) | 2007-09-14 | 2007-09-14 | Method for treating waste water of 1,4-butanediol production |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717168B (en) * | 2009-12-07 | 2012-08-08 | 贵州绿色环保设备工程有限责任公司 | Method for treating wastewater in glycol production |
| CN102249485B (en) * | 2011-05-19 | 2012-12-26 | 陕西比迪欧化工有限公司 | Device for treating high-concentration organic wastewater and wastewater generated during production of 1,4-butanediol |
| CN102295384B (en) * | 2011-06-16 | 2013-04-03 | 博瑞德（南京）净化技术有限公司 | 1,4-butanediol chemical waste water treatment technology |
| CN102557359B (en) * | 2012-03-01 | 2013-06-26 | 贵州绿色环保设备工程有限责任公司 | Device for treating wastewater during production of pentaerythritol |
| CN103755063B (en) * | 2013-12-30 | 2015-03-04 | 攀钢集团成都钢钒有限公司 | Water treatment system and water treatment process |
| CN104291524B (en) * | 2014-09-22 | 2016-08-24 | 中国石化仪征化纤有限责任公司 | BDO oxidized waste water continuous treatment method |
| CN109133349A (en) * | 2018-08-25 | 2019-01-04 | 中持水务股份有限公司 | AO integrated reaction equipment suitable for garbage leachate wastewater processing |
| CN109667770A (en) * | 2019-01-24 | 2019-04-23 | 珠海瑞成自控科技发展有限公司 | A kind of water treatment facilities control system based on variable frequency control |
-
2007
- 2007-09-14 CN CNB2007100779379A patent/CN100522850C/en not_active Expired - Fee Related
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| SBR法处理丁二醇及PAM生产废水的动力学. 陈玲芳等.四川大学学报（工程科学版），第35卷第6期. 2003 * |
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| CN101148305A (en) | 2008-03-26 |
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