CN104003591A - Denitrification collaborative bio-doubling process - Google Patents
Denitrification collaborative bio-doubling process Download PDFInfo
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- CN104003591A CN104003591A CN201410283223.3A CN201410283223A CN104003591A CN 104003591 A CN104003591 A CN 104003591A CN 201410283223 A CN201410283223 A CN 201410283223A CN 104003591 A CN104003591 A CN 104003591A
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Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a denitrification collaborative bio-doubling process. The bio-doubling process comprises a main system and an auxiliary system and is characterized in that the main system comprises an inflow water distribution system, a liquid level changing water outlet system, a variable frequency air blowing accurate aerating system, an independent stirring system, a pre-arranged denitrification selection tank, a main biochemical reaction pond, a reflux pump and a sludge discharging pump; the auxiliary system comprises an accurate aerating electric control system, an independent stirring system, a special-type agent feeding system, a temperature monitoring system, a PH monitoring system and a dissolved oxygen monitoring system. According to the denitrification collaborative bio-doubling process, chemical waste water can be effectively purified, an excellent water outflow effect can be achieved, hazard-free treatment is carried out on the sewage, environment benefits are created, reclaimed water is reused and certain economic efficiency is created.
Description
Technical field
The invention belongs to technical field of sewage, relate to particularly the collaborative biological multiplication process of a kind of denitrification.
Background technology
Wastewater from chemical industry itself is as a difficult problem of environment-protective water treatment industry, the main method of processing at present organic wastewater with difficult degradation thereby has chemical oxidization method, extraction process, absorption method, burning method, catalytic oxidation, biochemical process etc., but physical chemistry method, advanced oxidation scheme is faced with capital construction and running cost is high, only has biochemical process technical maturity, equipment is simple, processing power is large, and running cost is low, does not reach the problems such as direct reuse standard and traditional biochemical process is faced with effluent quality.
Summary of the invention
The object of the present invention is to provide difficult degradation chemical wastewater biochemical improvement technology, specifically the collaborative biological multiplication process of a kind of denitrification.
To achieve these goals, for solving an above existing difficult problem, the invention discloses the collaborative biological multiplication process of a kind of denitrification, comprise host system and subsystem two portions; Wherein, host system comprises into water water distribution system, liquid level variable outlet system, the accurate aerating system of frequency conversion air blast, independent stirring system, Prepositive denitrification selection pond, main body biochemical reaction tank and reflux pump, sludge pump; Subsystem comprises accurate aeration electrical control system, independent stirring system, extraordinary adding of agent system, temperature monitoring system, PH Monitoring systems, dissolved oxygen Monitoring systems.
The accurate aerating system of described frequency conversion air blast comprises frequency conversion gas blower, accurate frequency conversion electrical control system.
Described independent stirring system comprises independent stirring system 01, independent stirring system 02, independent stirring system 03, independent stirring system 04.
Waste water periodically enters Prepositive denitrification through pipe network and selects pond, it is a short biological selector of the residence time that Prepositive denitrification is selected pond, the mixed solution that waste water refluxes with main body biochemical reaction tank contacts as water inlet inoculation, denitrification selector switch generates district for water inlet provides the desirable zoogloea of a high loading, low dissolved axygen simultaneously, for follow-up sludge settling improved performance is created good condition.
Select the water outlet in pond to enter follow-up main body biochemical reaction tank from Prepositive denitrification, follow-up main body reaction biochemistry pool, be subject to periodically to become dissolved oxygen control, each cycle is divided into 6 stages: the leading portion denitrification stage, the synchronous nitration and denitrification stage, stage casing denitrification stage, nitrated stage of back segment, precipitate phase, bleeding stage.
Leading portion denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, according to flooded condition, add specific nutrition, in consumption systems, nitrate and nitrite, be good condition of nitrated creation.
Concrete steps are: (1), add extraordinary medicament; (2), dissolved oxygen is controlled at 0mg/L; (3), gas blower stops, agitator standard-sized sheet; (4), system starts water inlet; (5), mixed solution starts to reflux; (6), carbon source abundance, system is in the desirable denitrification stage.
Synchronous nitration and denitrification: under gas blower oxygen supply, in system control low dissolved axygen situation, by the independent stirring system of setting up, for synchronous nitration and denitrification is created good condition, oxidation of coal, nitrated, denitrification carry out at same reactor.
Concrete steps are: (1), dissolved oxygen are controlled at below 0.15mg/L; (2), gas blower leaves, agitator standard-sized sheet; (3), system continues water inlet; (4), mixed solution continues to reflux; (5), system nitrification and denitrification synchronously carries out.
Stage casing denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, utilize hardly degraded organic substance remaining in denitrification degrading waste water, for high-quality water outlet COD creates a prerequisite.
Concrete steps are: (1), dissolved oxygen are controlled at 0mg/L; (2), gas blower stops, agitator standard-sized sheet; (3), system continues water inlet; (4), continue to reflux; (5), nitrate abundance, system is in the desirable denitrification stage.
Back segment is nitrated: the in the situation that of gas blower oxygen supply, in system, the organism overwhelming majority is consumed complete, system dissolves oxygen has had very large raising this moment, for autotrophic type nitrifier has been created a very good environment to the removal of ammonia nitrogen, for high-quality water outlet ammonia nitrogen is created a prerequisite.
Concrete steps are: more than (1), dissolved oxygen are controlled at 2mg/L; (2), gas blower leaves, agitator standard-sized sheet; (3), system stops into water; (4), continue to reflux; (5), high-solubility oxygen, low organic substrates, system is in the nitrated stage of ideal.
Precipitate phase: the in the situation that of closure systems gas blower and stirring system, mud-water separation.
Concrete steps are: (1), gas blower, agitator, reflux pump full cut-off are only; (2), system stops into water; (3), system starts static state deposition.
Bleeding stage: stop into water, by the proprietary wetting system of straining, supernatant liquor is discharged to system, system enters next cycle circulation.
Concrete steps are: (1), system stop into water; (2), system starts liquid level variable water outlet; (3), after the water outlet of pond body, liquid level variable outlet system resets.
Profile of the present invention and large I are according to the adjustment of water yield treatment scale, but internal structure and principle are constant.
The present invention can purify wastewater from chemical industry effectively, makes it reach very excellent outlet effect, and by innoxious sewage create environment benefit, resource utilization is created certain economic benefit as middle water.
Brief description of the drawings
Fig. 1 is that schematic diagram is arranged in the collaborative biological multiplication of denitrification pond.
Fig. 2 is the collaborative biological multiplication of denitrification pond periodictable.
Embodiment
Below, described in Fig. 1-Fig. 2, be described in detail.
Embodiment:
The collaborative biological multiplication process of a kind of denitrification as shown in Figure 1 and Figure 2, comprises host system and subsystem two portions; Wherein, host system comprises into water water distribution system, liquid level variable outlet system, the accurate aerating system of frequency conversion air blast, independent stirring system, Prepositive denitrification selection pond, main body biochemical reaction tank and reflux pump, sludge pump; Subsystem comprises accurate aeration electrical control system, independent stirring system, extraordinary adding of agent system, temperature monitoring system, PH Monitoring systems, dissolved oxygen Monitoring systems.
The accurate aerating system of described frequency conversion air blast comprises frequency conversion gas blower, accurate frequency conversion electrical control system.
Described independent stirring system comprises independent stirring system 01, independent stirring system 02, independent stirring system 03, independent stirring system 04.
Waste water periodically enters Prepositive denitrification through pipe network and selects pond, it is a short biological selector of the residence time that Prepositive denitrification is selected pond, the mixed solution that waste water refluxes with main body biochemical reaction tank contacts as water inlet inoculation, denitrification selector switch generates district for water inlet provides the desirable zoogloea of a high loading, low dissolved axygen simultaneously, for follow-up sludge settling improved performance is created good condition.
Select the water outlet in pond to enter follow-up main body biochemical reaction tank from Prepositive denitrification, follow-up main body reaction biochemistry pool, be subject to periodically to become dissolved oxygen control, each cycle is divided into 6 stages: the leading portion denitrification stage, the synchronous nitration and denitrification stage, stage casing denitrification stage, nitrated stage of back segment, precipitate phase, bleeding stage.
Leading portion denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, according to flooded condition, add specific nutrition, in consumption systems, nitrate and nitrite, be good condition of nitrated creation.
Concrete steps are: (1), add extraordinary medicament; (2), dissolved oxygen is controlled at 0mg/L; (3), gas blower stops, agitator standard-sized sheet; (4), system starts water inlet; (5), mixed solution starts to reflux; (6), carbon source abundance, system is in the desirable denitrification stage.
Synchronous nitration and denitrification: under gas blower oxygen supply, in system control low dissolved axygen situation, by the independent stirring system of setting up, for synchronous nitration and denitrification is created good condition, oxidation of coal, nitrated, denitrification carry out at same reactor.
Concrete steps are: (1), dissolved oxygen are controlled at below 0.15mg/L; (2), gas blower leaves, agitator standard-sized sheet; (3), system continues water inlet; (4), mixed solution continues to reflux; (5), system nitrification and denitrification synchronously carries out.
Stage casing denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, utilize hardly degraded organic substance remaining in denitrification degrading waste water, for high-quality water outlet COD creates a prerequisite.
Concrete steps are: (1), dissolved oxygen are controlled at 0mg/L; (2), gas blower stops, agitator standard-sized sheet; (3), system continues water inlet; (4), continue to reflux; (5), nitrate abundance, system is in the desirable denitrification stage.
Back segment is nitrated: the in the situation that of gas blower oxygen supply, in system, the organism overwhelming majority is consumed complete, system dissolves oxygen has had very large raising this moment, for autotrophic type nitrifier has been created a very good environment to the removal of ammonia nitrogen, for high-quality water outlet ammonia nitrogen is created a prerequisite.
Concrete steps are: more than (1), dissolved oxygen are controlled at 2mg/L: (2), gas blower are opened, agitator standard-sized sheet; (3), system stops into water; (4), continue to reflux; (5), high-solubility oxygen, low organic substrates, system is in the nitrated stage of ideal.
Precipitate phase: the in the situation that of closure systems gas blower and stirring system, mud-water separation.
Concrete steps are: (1), gas blower, agitator, reflux pump full cut-off are only; (2), system stops into water; (3), system starts static state deposition.
Bleeding stage: stop into water, by the proprietary wetting system of straining, supernatant liquor is discharged to system, system enters next cycle circulation.
Concrete steps are: (1), system stop into water; (2), system starts liquid level variable water outlet; (3), after the water outlet of pond body, liquid level variable outlet system resets.
Profile of the present invention and large I are according to the adjustment of water yield treatment scale, but internal structure and principle are constant.
The present invention can purify wastewater from chemical industry effectively, makes it reach very excellent outlet effect, and by innoxious sewage create environment benefit, resource utilization is created certain economic benefit as middle water.
Claims (7)
1. the collaborative biological multiplication process of denitrification, comprises host system and subsystem two portions; It is characterized in that: described host system comprises into water water distribution system, liquid level variable outlet system, the accurate aerating system of frequency conversion air blast, independent stirring system, Prepositive denitrification selects pond, main body biochemical reaction tank and reflux pump, sludge pump; Described subsystem comprises accurate aeration electrical control system, independent stirring system, extraordinary adding of agent system, temperature monitoring system, PH Monitoring systems, dissolved oxygen Monitoring systems;
The accurate aerating system of described frequency conversion air blast comprises frequency conversion gas blower, accurate frequency conversion electrical control system; Described independent stirring system comprises independent stirring system 01, independent stirring system 02, independent stirring system 03, independent stirring system 04:
Waste water periodically enters Prepositive denitrification through pipe network and selects pond, it is a short biological selector of the residence time that Prepositive denitrification is selected pond, the mixed solution that waste water refluxes with main body biochemical reaction tank contacts as water inlet inoculation, denitrification selector switch generates district for water inlet provides the desirable zoogloea of a high loading, low dissolved axygen simultaneously, for follow-up sludge settling improved performance is created good condition;
Select the water outlet in pond to enter follow-up main body biochemical reaction tank from Prepositive denitrification, follow-up main body reaction biochemistry pool, be subject to periodically to become dissolved oxygen control, each cycle is divided into 6 stages: the leading portion denitrification stage, the synchronous nitration and denitrification stage, stage casing denitrification stage, nitrated stage of back segment, precipitate phase, bleeding stage.
2. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Leading portion denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, according to flooded condition, add specific nutrition, in consumption systems, nitrate and nitrite, be good condition of nitrated creation;
Concrete steps are: (1), add extraordinary medicament; (2), dissolved oxygen is controlled at 0mg/L; (3), gas blower stops, agitator standard-sized sheet; (4), system starts water inlet; (5), mixed solution starts to reflux; (6), carbon source abundance, system is in the desirable denitrification stage.
3. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Synchronous nitration and denitrification: under gas blower oxygen supply, in system control low dissolved axygen situation, by the independent stirring system of setting up, for synchronous nitration and denitrification is created good condition, oxidation of coal, nitrated, denitrification carry out at same reactor;
Concrete steps are: (1), dissolved oxygen are controlled at below 0.15mg/L; (2), gas blower leaves, agitator standard-sized sheet; (3), system continues water inlet; (4), mixed solution continues to reflux; (5), system nitrification and denitrification synchronously carries out.
4. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Stage casing denitrification: by the independent stirring system of setting up, the in the situation that of gas blower oxygen deprivation, utilize hardly degraded organic substance remaining in denitrification degrading waste water, for high-quality water outlet COD creates a prerequisite;
Concrete steps are: (1), dissolved oxygen are controlled at 0mg/L; (2), gas blower stops, agitator standard-sized sheet; (3), system continues water inlet; (4), continue to reflux; (5), nitrate abundance, system is in the desirable denitrification stage.
5. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Back segment is nitrated: the in the situation that of gas blower oxygen supply, in system, the organism overwhelming majority is consumed complete, system dissolves oxygen has had very large raising this moment, for autotrophic type nitrifier has been created a very good environment to the removal of ammonia nitrogen, for high-quality water outlet ammonia nitrogen is created a prerequisite;
Concrete steps are: more than (1), dissolved oxygen are controlled at 2mg/L; (2), gas blower leaves, agitator standard-sized sheet; (3), system stops into water; (4), continue to reflux; (5), high-solubility oxygen, low organic substrates, system is in the nitrated stage of ideal.
6. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Precipitate phase: the in the situation that of closure systems gas blower and stirring system, mud-water separation;
Concrete steps are: (1), gas blower, agitator, reflux pump full cut-off are only; (2), system stops into water; (3), system starts static state deposition.
7. the collaborative biological multiplication process of a kind of denitrification according to claim 1, is characterized in that:
Bleeding stage: stop into water, by the proprietary wetting system of straining, supernatant liquor is discharged to system, system enters next cycle circulation;
Concrete steps are: (1), system stop into water; (2), system starts liquid level variable water outlet; (3), after the water outlet of pond body, liquid level variable outlet system resets.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084675A (en) * | 2015-09-10 | 2015-11-25 | 北京今大禹环保技术有限公司 | Fine and intelligent biological oxygen mixing reaction bed and wastewater biochemical treatment process using same |
| CN106477812A (en) * | 2016-10-28 | 2017-03-08 | 重庆渝桑环保科技有限公司 | Saprobia multiplication denitrifying method |
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| JPS6068095A (en) * | 1983-09-22 | 1985-04-18 | Taisei Corp | Batch activated sludge process equipment |
| KR20020072360A (en) * | 2001-03-09 | 2002-09-14 | 주식회사 제일엔지니어링 | Biological Nitrogen Removal from Nitrogen-Rich Wastewaters by Partial Nitrification and Anaerobic Ammonium Oxidation |
| KR20040018605A (en) * | 2002-08-23 | 2004-03-04 | 한국과학기술연구원 | Apparatus for Treatment of Domestic Wastewater Combining Continuous SBR and Contact Aeration Tank and Method Therefor Using the Apparatus |
| CN201240944Y (en) * | 2008-08-18 | 2009-05-20 | 刘晓宇 | Facultative aerobic / aerobic / facultative aerobic coking waste water biological full denitrification processing device |
| CN102079578A (en) * | 2010-12-23 | 2011-06-01 | 同济大学 | Method for quickly enriching phosphorus accumulating organisms (PAOs) in activated sludge |
| CN102674537A (en) * | 2012-04-13 | 2012-09-19 | 北京华利嘉环境工程技术有限公司 | Reversed-order SBR (Sequencing Batch Reactor) water processing device and method for enhanced nitrogen removal |
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2014
- 2014-06-24 CN CN201410283223.3A patent/CN104003591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068095A (en) * | 1983-09-22 | 1985-04-18 | Taisei Corp | Batch activated sludge process equipment |
| KR20020072360A (en) * | 2001-03-09 | 2002-09-14 | 주식회사 제일엔지니어링 | Biological Nitrogen Removal from Nitrogen-Rich Wastewaters by Partial Nitrification and Anaerobic Ammonium Oxidation |
| KR20040018605A (en) * | 2002-08-23 | 2004-03-04 | 한국과학기술연구원 | Apparatus for Treatment of Domestic Wastewater Combining Continuous SBR and Contact Aeration Tank and Method Therefor Using the Apparatus |
| CN201240944Y (en) * | 2008-08-18 | 2009-05-20 | 刘晓宇 | Facultative aerobic / aerobic / facultative aerobic coking waste water biological full denitrification processing device |
| CN102079578A (en) * | 2010-12-23 | 2011-06-01 | 同济大学 | Method for quickly enriching phosphorus accumulating organisms (PAOs) in activated sludge |
| CN102674537A (en) * | 2012-04-13 | 2012-09-19 | 北京华利嘉环境工程技术有限公司 | Reversed-order SBR (Sequencing Batch Reactor) water processing device and method for enhanced nitrogen removal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084675A (en) * | 2015-09-10 | 2015-11-25 | 北京今大禹环保技术有限公司 | Fine and intelligent biological oxygen mixing reaction bed and wastewater biochemical treatment process using same |
| CN106477812A (en) * | 2016-10-28 | 2017-03-08 | 重庆渝桑环保科技有限公司 | Saprobia multiplication denitrifying method |
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