CN103408138A - Two-stage biological treatment equipment for high COD and high NH3-N coal chemical sewage - Google Patents
Two-stage biological treatment equipment for high COD and high NH3-N coal chemical sewage Download PDFInfo
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- CN103408138A CN103408138A CN2013103044721A CN201310304472A CN103408138A CN 103408138 A CN103408138 A CN 103408138A CN 2013103044721 A CN2013103044721 A CN 2013103044721A CN 201310304472 A CN201310304472 A CN 201310304472A CN 103408138 A CN103408138 A CN 103408138A
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Abstract
The invention discloses two-stage biological treatment equipment for high COD and high NH3-N coal chemical sewage. The equipment is characterized in that: it comprises a first-stage biological treatment device, a second-stage biological treatment device and a control device. The equipment employs a technology combining a first-stage biological treatment and a second-stage biological treatment, and makes use of the first-stage biological treatment device to degrade toxic, harmful and biologically inhibitory substances in inflow water in advance, thus reducing the load of following second-stage biological treatment of organic pollutants, and achieving a better sewage treatment effect. In addition, as the first-stage biological treatment device and the second-stage biological treatment device can realize independent operation and control, the effective operation of each biochemical treatment section is ensured. Thus, the treatment equipment can operate flexibly and stronger impact resistance.
Description
Technical field
The present invention relates to coal chemical industry sewage treatment facility field, specifically refer to a kind of two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage.
Background technology
In the coal chemical industry enterprises production process, can discharge large amount of sewage, in sewage, generally contain the poisonous and harmful substances such as a large amount of suspended substances, phenol, cyanogen, oil, ammonia nitrogen.Wherein, the organic pollutant of sewage middle and high concentration (COD) and ammonia nitrogen (NH3-N) are difficult to be biodegradable, the existence of a large amount of recalcitrant substances causes water quality and quantity to change greatly, and biodegradability is poor, this processing that contains the coal chemical industry sewage of high COD, high ammonia nitrogen is the difficult problem in Pollutant Treatment field always.In order to solve this difficult problem, the treatment process that the coal chemical industrial waste water that some are new occurred in recent years, as PACT method, anaerobic biological process, anaerobic-aerobic biological process etc., the PACT method has been utilized the adsorption of Active Carbon in Organic and dissolved oxygen, for microbial growth provides food, thereby accelerate organic oxidative decomposition capacity, this treatment process removal effect when organic pollutants (COD) and ammonia nitrogen (NH3-N) dense is poor, is difficult to the decontamination effect improving that reaches desirable; There are the shortcomings such as operation stability is poor, impact resistance is weak in simple anaerobic biological process, anaerobic-aerobic biological process treatment facility, have affected the normal steady running of Sewage Plant.At present, for the high-performance bio treatment facility of the coal chemical industry sewage development of new that contains high COD, high ammonia nitrogen, become the new problem of sewage treatment process development.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, and a kind of flexible operation, strong shock resistance, the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage that treatment effect is good are provided.
The present invention solves the problems of the technologies described above the technical scheme adopted: a kind of two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage, this equipment comprise one section biological treatment device, two sections biological treatment devices and control device.
As preferably, described one section biological treatment device comprises one section biochemical system, intermediate sedimentation pond and one section sludge reflux and blowdown system; Described two sections biological treatment devices comprise two sections biochemical systems, terminal sludge-water separating system and two sections sludge refluxes and blowdown system.
Preferably, described one section biochemical system comprises one section biochemical anaerobic zone, one section biochemical oxygen-starved area and one section biochemical aerobic zone; Described two sections biochemical systems comprise two sections biochemical anaerobic zones, two sections biochemical oxygen-starved areas and two sections biochemical aerobic zones.
Preferably, described one section sludge reflux and blowdown system comprise one section sludge reflux and exhaust-control valve, one section sludge reflux passage and one section spoil disposal passage; Described two sections sludge refluxes and blowdown system comprise two sections sludge refluxes and exhaust-control valve, two sections sludge reflux passages, two sections spoil disposal passages and drainage channel.
Preferably, described terminal sludge-water separating system comprises that terminal mud-water separation district and two sections biochemical systems and terminal sludge-water separating system cut off facility.
Preferably, described control device comprises air-blast system and Controlling System.
Compared with prior art, the invention has the advantages that: due to the present invention, adopted the treatment facility that comprises one section biological treatment device, two sections biological treatment devices and control device, process combination by two sections biochemical treatments after first one section biochemical treatment, utilize degrade in advance poisonous, harmful and Biostatic material in water of one section biochemical treatment apparatus, reduce the load of follow-up two sections biochemical treatment organic pollutants, reached better wastewater treatment efficiency; In addition, can independent operating and control due to one section biological treatment device and two sections biological treatment devices, guaranteed effective operation of each biochemical treatment workshop section, make treatment facility flexible operation, impact resistance stronger.
The accompanying drawing explanation
Fig. 1 is technical process of the present invention and combination unit figure.
Embodiment
Below in conjunction with accompanying drawing, be described in further detail.
Embodiment 1: as shown in Figure 1, a kind of two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage, comprise one section biological treatment device I, two sections biological treatment device II and control device III.
Above-mentioned one section biological treatment device I comprises one section biochemical system, intermediate sedimentation pond 4 and one section sludge reflux and blowdown system, wherein, one section biochemical system can comprise according to the difference of water water quality all or part of of the biochemical oxygen-starved area of one section biochemical anaerobic zone 1, a section 2, one section biochemical aerobic zone 3; One section sludge reflux and blowdown system comprise one section sludge reflux and exhaust-control valve 9, one section sludge reflux passage 12 and one section spoil disposal passage 13.
Above-mentioned two sections biological treatment device II comprise two sections biochemical systems, terminal sludge-water separating system and two sections sludge refluxes and blowdown system, wherein, two sections biochemical systems can comprise according to the difference of water degree for the treatment of all or part of of the biochemical oxygen-starved area of two sections biochemical anaerobic zones 5, two sections 6, two sections biochemical aerobic zones 7; The terminal sludge-water separating system comprises that terminal mud-water separation district 8 and two sections biochemical systems and terminal sludge-water separating system cut off facility 14; Two sections sludge refluxes and blowdown system comprise two sections sludge refluxes and exhaust-control valve 10, two sections sludge reflux passages 15, two sections spoil disposal passages 16 and drainage channels 11.
Above-mentioned control device III comprises air-blast system 17 and Controlling System 18.
Above-mentioned one section biochemical anaerobic zone 1 or one section biochemical oxygen-starved area 2 also can be adjusted into the biochemical treatment functional zone such as acidication district as required.
One section biological treatment device I and two sections biological treatment device II can independently arrange separately.
According to processing requirement, above-mentioned terminal mud-water separation district 8 can adopt settling tank or membrane sepn etc.
In the present embodiment, after sewage flows into treatment facility, successively through one section biochemical anaerobic zone 1, one section biochemical oxygen-starved area 2, one section biochemical aerobic zone 3 carries out corresponding biochemical reaction, then enter intermediate sedimentation pond 4 and carry out mud-water separation, after one section biochemical sludge is concentrated by intermediate sedimentation pond 4, promoted by one section sludge reflux and exhaust-control valve 9, by one section sludge reflux passage 12, be back to one section biochemical system, excess sludge is discharged by one section spoil disposal passage 13, the supernatant liquor in intermediate sedimentation pond 4 is more successively through two sections biochemical anaerobic zones 5, two sections biochemical oxygen-starved areas 6, two sections biochemical aerobic zones 7 carry out corresponding biochemical reaction, then enter terminal mud-water separation district 8 and carry out final mud-water separation, after two sections biochemical sludges are concentrated by terminal mud-water separation district 8, promoted by two sections sludge refluxes and exhaust-control valve 10, by two sections sludge reflux passages 15, be back to two sections biochemical systems, excess sludge is discharged by two sections spoil disposal passages 16, the current that are purified are discharged by drainage channel 11.Air-blast system 17 can be supplied aerobic zone aeration or other technique required airs.
Two sections biological treatment device II and terminal mud-water separation district 8 can divide and build or build jointly, two sections biochemical systems and terminal sludge-water separating system are set when employing is built jointly and cut off facility 14, the unlatching of this partition facility or close and terminal mud-water separation district 8 can be communicated with or cut off with two sections biochemical systems.
One section sludge reflux passage 12 and two sections sludge reflux passages 15 are provided with connected sum and cut off facility, the mud of two sections biochemical systems can be allocated mutually in case of necessity.
One section biological treatment device I in treatment facility, two sections biological treatment device II and air-blast system 17 are all moved automatically by the centralized Control of Controlling System 18.Controlling System 18 is adjusted the parameters such as the operation condition, flow of each system, equipment automatically by the monitoring to dissolved oxygen concentration, ORP, flow, pressure, liquid level and Inlet and outlet water water quality etc., control requirement with the operation that meets whole process system.
Embodiment 2: adopt the shown in Figure 1 high COD that contains, the two-part biological treating equipment of high ammonia nitrogen coal chemical industry sewage, to main influent quality, be COD=700mg/L, BOD5=450mg/L, SS=50mg/l, the coal chemical industry sewage of ammonia nitrogen=270mg/l is carried out a biological disposal upon, one section biochemical system adopts one section biochemical aerobic zone 3, hydraulic detention time is 12h, sludge concentration is 4000mg/L, radical sedimentation basin is adopted in intermediate sedimentation pond 4, two sections biochemical systems adopt two sections biochemical oxygen-starved areas 6 and two sections biochemical aerobic zones 7, hydraulic detention time is 50h, sludge concentration is 6000mg/l, terminal mud-water separation district 8 adopts the water outlet of submerged ultrafiltration membrance filter, all treating processess by Controlling System 18 according to water quality, operational monitoring instrument and setting operating parameter auto-controll operation, the rear effluent quality of finishing dealing with reaches COD≤60mg/l, BOD5≤10mg/L, ammonia nitrogen≤10mg/L, the standard of SS≤10mg/l, can realize that flexible and efficient processing contains high COD, the purpose of high ammonia nitrogen coal chemical industry sewage.
Claims (9)
1. two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage is characterized in that: this equipment comprises one section biological treatment device, two sections biological treatment devices and control device.
2. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 1 is characterized in that: described one section biological treatment device comprises one section biochemical system, intermediate sedimentation pond and one section sludge reflux and blowdown system.
3. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 2, it is characterized in that: described one section biochemical system comprises one section biochemical anaerobic zone, one section biochemical oxygen-starved area and one section biochemical aerobic zone.
4. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 2, it is characterized in that: described one section sludge reflux and blowdown system comprise one section sludge reflux and exhaust-control valve, one section sludge reflux passage and one section spoil disposal passage.
5. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 1 is characterized in that: described two sections biological treatment devices comprise two sections biochemical systems, terminal sludge-water separating system and two sections sludge refluxes and blowdown system.
6. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 5, it is characterized in that: described two sections biochemical systems comprise two sections biochemical anaerobic zones, two sections biochemical oxygen-starved areas and two sections biochemical aerobic zones.
7. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 5 is characterized in that: described two sections sludge refluxes and blowdown system comprise two sections sludge refluxes and exhaust-control valve, two sections sludge reflux passages, two sections spoil disposal passages and drainage channel.
8. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 5 is characterized in that: described terminal sludge-water separating system comprises that terminal mud-water separation district and two sections biochemical systems and terminal sludge-water separating system cut off facility.
9. the two-part biological treating equipment that contains high COD, high ammonia nitrogen coal chemical industry sewage according to claim 1, it is characterized in that: described control device comprises air-blast system and Controlling System.
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| CN201310304472.1A CN103408138B (en) | 2013-07-16 | 2013-07-16 | Containing the two-part biological treating equipment of high COD, high ammonia nitrogen coal chemical industry sewage |
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| CN201310304472.1A CN103408138B (en) | 2013-07-16 | 2013-07-16 | Containing the two-part biological treating equipment of high COD, high ammonia nitrogen coal chemical industry sewage |
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| CN103408138B CN103408138B (en) | 2016-01-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923934A (en) * | 2016-07-18 | 2016-09-07 | 符惠 | Combined sewage treatment system convenient to operate, and use method thereof |
| CN105948259A (en) * | 2016-07-18 | 2016-09-21 | 符惠 | Combined sewage purification treatment process and use method |
| CN109485151A (en) * | 2018-11-26 | 2019-03-19 | 上海泓济环保科技股份有限公司 | The device and its treatment process of synthesis gas preparing ethylene glycol production wastewater treatment |
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| CN109485151A (en) * | 2018-11-26 | 2019-03-19 | 上海泓济环保科技股份有限公司 | The device and its treatment process of synthesis gas preparing ethylene glycol production wastewater treatment |
| CN109485151B (en) * | 2018-11-26 | 2023-08-29 | 上海泓济环保科技股份有限公司 | Device and process for treating wastewater from production of ethylene glycol from synthesis gas |
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| CN103408138B (en) | 2016-01-13 |
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Address after: No. 660, academician Road, Ningbo high tech Zone, Zhejiang Province Co-patentee after: SINOPEC Ningbo Technology Research Institute Co., Ltd. Patentee after: SINOPEC Ningbo Engineering Company Limited Co-patentee after: CITIC Environmental Technology (Tianjin) Co., Ltd. Co-patentee after: SINOPEC Engineering (Group) Co., Ltd. Address before: No. 660, academician Road, Ningbo high tech Zone, Zhejiang Province Co-patentee before: SINOPEC Ningbo Technology Research Institute Co., Ltd. Patentee before: SINOPEC Ningbo Engineering Company Limited Co-patentee before: NOVO Envirotech (Tianjin) Ltd. Co-patentee before: SINOPEC Engineering (Group) Co., Ltd. |