CN202131190U - Semi-coke wastewater treatment system - Google Patents
Semi-coke wastewater treatment system Download PDFInfo
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- CN202131190U CN202131190U CN201120239292U CN201120239292U CN202131190U CN 202131190 U CN202131190 U CN 202131190U CN 201120239292 U CN201120239292 U CN 201120239292U CN 201120239292 U CN201120239292 U CN 201120239292U CN 202131190 U CN202131190 U CN 202131190U
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Abstract
The utility model relates to a semi-coke wastewater treatment system. Water treated by the conventional semi-coke enterprise wastewater treatment system cannot reach the standard. The semi-coke wastewater treatment system comprises an intensified pretreatment system and a comprehensive treatment system, wherein the intensified pretreatment system comprises a concentrated water regulating pool, a heat exchanger, a pipe mixer, a multifunctional water purifier, a de-phenolizing device, a pre-aeration de-sulfuration device, a settling pond and an ammonia air stripping tower which are communicated with one another sequentially; two outlets of the ammonia air stripping tower are connected with an ammonia absorbing tower and a middle pool respectively; the comprehensive treatment system comprises a comprehensive regulating pool; the middle pool is communicated with the comprehensive regulating pool through a grating well; the comprehensive regulating pool is communicated with an anaerobic pool, an anoxic pool, an aerobic pool, a primary settling pond, a contact oxidation pool and a secondary settling pond sequentially; a return pipe I is arranged between the primary settling pond and the aerobic pool; a return pipe II is arranged between the secondary settling pond and the contact oxidation pool; two outlets of the secondary settling pond are connected with a sludge concentrated tank and an ultrasonic air floating device respectively; and another outlet of the anaerobic pool is communicated with another inlet of the sludge concentrated tank.
Description
Technical field
The utility model belongs to water-treatment technology field, is specifically related to a kind of blue charcoal Waste Water Treatment.
Backgroundfield
According to the difference of coking industry investment and production mode, it is that coke waste water and with serious pollution semicoke are two kinds of blue charcoal waste water that coking chemical waste water is divided into the lighter metallurgical coke of pollution.
The production of the extensive property of metallurgical coke is in the majority, and investment puts in place, and the sub product (coal tar, coke(oven)gas, crude benzol etc.) that is produced in the production process has been carried out comprehensive recovery and utilization, and therefore, pollutent obviously reduces in the waste water of its generation.Such waste water is general only through carrying out biochemical treatment after the simple pre-treatment (oil removal and water quality and quantity are regulated), realizes standard wastewater discharge or recycling.
Blue charcoal waste water is the waste water that produces in coal system semicoke product and the quenching process, its COD, BOD, SS, phenol, NH
3-N, wet goods content are very high, and complicated component is changeable.Secondly wherein organic pollutant is main with phenol compound, accounts for the over half of total organic matter, also comprises the heterogeneous ring compound of polycyclc aromatic compound and nitrogenous, oxygen, sulphur etc.; Inorganic pollutant is main with prussiate, sulfide, ammonium salt mainly.Because it adopts non-caking coal and weakly caking coal is raw material, the production technique of middle low-temperature pyrolysis adds production-scale limited; The deficiency of investment; Sub product in the production process is not comprehensively reclaimed and utilizes, and therefore, a large amount of poisonous and hazardous material that produces in its process of coking all is dissolved in the waste water; Make such contaminated wastewater substrate concentration quite high, also improved the intractability of such waste water simultaneously greatly.At present, blue charcoal waste water has become one of used water difficult to degradate of generally acknowledging both at home and abroad.
Existing blue charcoal scale wastewater treatment system utilizes physico-chemical process, biochemical process more; Like HTHP CWO technology, utilize flue gas treatment coking chemical waste water, multiple-effect evaporation condensed combustion improvement technology etc.; Situation such as these systems all exist investment or working cost height, operation is complicated, discharging water quality is not up to standard are inappropriate for and apply.Because contain the organism of a large amount of macromole, difficult degradation in the blue charcoal waste water, in addition, the content of ammonia nitrogen, phenol etc. is also up to thousands of, even up to ten thousand.Adopt conventional single coking wastewater processing system to handle blue charcoal waste water, water outlet is seriously not up to standard naturally.
The utility model content
The purpose of the utility model provides a kind of blue charcoal Waste Water Treatment, to overcome investment that prior art exists or working cost height, complex process, discharging water quality defective not up to standard.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of blue charcoal Waste Water Treatment is characterized in that: comprises and strengthens pretreatment system and total system,
Said reinforcement pretreatment system comprises the dense water equalizing tank that is communicated with successively, interchanger, line mixer; Multifunctional water purifier, dephenolize device, preaeration desulfurizer; Settling tank and Ammonia blowing-out tower, an outlet of said Ammonia blowing-out tower connects ammonia absorber, and another outlet connects intermediate pool;
Said total system comprises the comprehensive adjustment pond, and said intermediate pool is communicated with the inlet in comprehensive adjustment pond through grille well, and the outlet in said comprehensive adjustment pond is communicated with anaerobic pond successively; Anoxic pond; Aerobic Pond, primary sedimentation basin, contact-oxidation pool and secondary sedimentation basins;
Be provided with return line one between said primary sedimentation basin and the Aerobic Pond, be provided with return line two between said secondary sedimentation basins and the contact-oxidation pool;
Two outlets of said secondary sedimentation basins connect sludge thickener and UW air supporting device respectively;
Another outlet of said anaerobic pond is communicated with another inlet of sludge thickener.
Above-mentioned comprehensive adjustment is provided with micro-pore aeration in the pond.
The utility model is simple in structure, and is easy to use, can handle blue charcoal waste water through physics, chemistry, biota bonded method, and be water of productive use with the waste water limit, realize using water cycle.Wherein strengthen pretreatment system and comprised adjusting, oil removing, dephenolize, desulfurization, five unit of ammonia still process, core cell is oil removing, dephenolize and ammonia still process.What oil removing was adopted is multi-functional flotation process, and chemical subsidiary logos is adopted in dephenolize, and ammonia still process utilizes Ammonia blowing-out tower.Through strengthening the pre-treatment effect, guaranteed the follow-up normal operation of biochemical section.The biochemical treatment unit adopts A
2/ O
2Method, i.e. anaerobism (A)+anoxic (A)+activated sludge process (O)+bio-contact oxidation (O).Biochemical section adopted two sections aerobic, the further organism in the degradation of sewage.Further purify water reuse up to standard at last through UW air supporting.The waste residue that produces in the technological process, mud all get into sludge thickener, are dehydrated into the mud cake outward transport through pressure filter.
Description of drawings
Fig. 1 is the blue charcoal Waste Water Treatment of the utility model figure.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is given to specify.
Referring to Fig. 1, a kind of blue charcoal Waste Water Treatment comprises and strengthens pretreatment system and total system; Said reinforcement pretreatment system comprises the dense water equalizing tank 1 that is communicated with successively, interchanger 2, line mixer 3; Multifunctional water purifier 4; Dephenolize device 5, preaeration desulfurizer 6, settling tank 7 and Ammonia blowing-out tower 8; An outlet of said Ammonia blowing-out tower 8 connects ammonia absorber 9, and another outlet connects intermediate pool 10; Said total system comprises comprehensive adjustment pond 11; Said intermediate pool 10 is communicated with the inlet in comprehensive adjustment pond 11 through grille well 12; The outlet in said comprehensive adjustment pond 11 is communicated with anaerobic pond 13 successively, anoxic pond 14, Aerobic Pond 15; Primary sedimentation basin 16, contact-oxidation pool 17 and secondary sedimentation basins 18; Be provided with return line 1 between said primary sedimentation basin 16 and the Aerobic Pond 15, be provided with return line 2 20 between said secondary sedimentation basins 18 and the contact-oxidation pool 17; Two outlets of said secondary sedimentation basins connect sludge thickener 21 and UW air supporting device 22 respectively; Another outlet of said anaerobic pond 13 is communicated with another inlet of sludge thickener 21, is provided with micro-pore aeration in the said comprehensive adjustment pond 11.
Blue charcoal waste water treatment process comprises strengthens pretreatment technology and comprehensive processing technique;
Said reinforcement pretreatment technology comprises:
1) water quality and quantity is regulated: the adjusting to coming water to carry out homogeneous, all measure in dense water equalizing tank;
2) oil removal: adopt multifunctional water purifier that the oil slick of blue charcoal waste water is reclaimed; Be provided with line mixer and interchanger before the said multifunctional water purifier, on the one hand can thorough mixing with the medicament that guarantees to add and waste water, reduce the temperature of high temperature orchid charcoal waste water on the other hand;
3) dephenolize: utilize the dephenolize of dephenolize device; Phenol is poisonous and hazardous material, and the content of phenol is up to thousands of, so must carry out pre-treatment in the blue charcoal waste water;
4) desulfuration and decyanation: regulate PH=8-9, remove sulphur and cyanogen in the sewage with the micro-pore aeration method; The waste water of sulfur-bearing and cyanogen gets into pipeline meeting corrosion pipeline, so remove sulphur and cyanogen in the sewage with the micro-pore aeration method;
5) deamination: adopt the Ammonia blowing-out tower deamination, and recycle;
Said comprehensive processing technique comprises:
6) comprehensive adjustment water quality and quantity: get into the comprehensive adjustment pond through strengthening pretreated waste water, carry out the adjusting of water quality and quantity, adopt micro-pore aeration simultaneously, remove a spot of pollution substance;
7) biochemical process: the main process of biochemical section adopts A
2O
2Organism in the degradation of sewage; Promptly, use the anoxic pond denitrogenation, sewage is purified, sewage is further purified with the secondary oxidation pond with stair oxidation pond degradation of organic substances with the anaerobic pond larger molecular organics of degrading;
Said anaerobic pond is a pulling flow type, can make the organism of most of macromole difficult degradation be converted into the organism that small molecules is prone to degraded;
Because organonitrogen content is higher in the waste water; When biodegrade, can occur, can raise so enter the index of the ammonia nitrogen in the water, and ammonia nitrogen also is a pollution controlling index with the form of ammonia nitrogen; Therefore before contact-oxidation pool, add anoxic pond; Utilize micro-air to stir in the anoxic pond, the control dissolved oxygen utilizes the nitrate salt of bringing in the mixed solution that refluxes to carry out denitrification with the organism carbon source in the water inlet at 0.5mg/L; Make into that NO2-, NO3-are reduced into N2 and reach denitrogenation in the water, removing organic while degradation of ammonia nitrogen value;
Through oxygen source is provided, the organism in the sewage is purified water quality by Institute of Micro-biology's absorption, degraded in the stair oxidation pond.Stair oxidation pond set inside combined stuffing, the further denitrogenation of the mixed-liquor return behind the stair oxidation to anoxic pond is further purified water quality, and aerator adopts clog-free microporous diaphragm aerator;
8) UW air supporting: pump into the air supporting flotation unit through biochemical section water outlet and further remove COD and oil in the water, guarantee qualified discharge and reuse.
Store in intermediate pool through strengthening pretreated sewage, together get into the comprehensive adjustment pond through grid with sewage then, the comprehensive adjustment pond is provided with micro-pore aeration, the part that can be removed pollution substance.Through the homogeneous in comprehensive adjustment pond all after the amount effect waste water get into biochemical section, described biochemical section is made up of anaerobic pond, anoxic pond, Aerobic Pond and contact-oxidation pool, and settling tank is set separately behind the described Aerobic Pond.Under anaerobic, improved the biodegradability of waste water, under anoxia condition, removed ammonia nitrogen greatly, under the two-stage aerobic condition, made good use of the effect of oxygen animalcule, decomposed organism step by step and be able to remove.Pass through the mud-water separation of settling tank at last; Mud enters sludge sump, and the effect of UW air supporting is passed through in water outlet again, thereby can not divide biochemical section macromole, the hard-degraded substance taken off to realize chain rupture, crack removal; Blue charcoal waste water after treatment; The clearance of COD, BOD, SS, phenol, NH3-N, wet goods all more than 96%, reaches " Iron And Steel Industry pollution discharge standard " (GB13456-1992) more than the secondary standard, but water qualified discharge or reuse after the processing.
Claims (2)
1. blue charcoal Waste Water Treatment is characterized in that: comprises and strengthens pretreatment system and total system,
Said reinforcement pretreatment system comprises the dense water equalizing tank (1) that is communicated with successively, interchanger (2), line mixer (3); Multifunctional water purifier (4); Dephenolize device (5), preaeration desulfurizer (6), settling tank (7) and Ammonia blowing-out tower (8); An outlet of said Ammonia blowing-out tower (8) connects ammonia absorber (9), and another outlet connects intermediate pool (10);
Said total system comprises comprehensive adjustment pond (11); Said intermediate pool (10) is communicated with the inlet of comprehensive adjustment pond (11) through grille well (12); The outlet in said comprehensive adjustment pond (11) is communicated with anaerobic pond (13) successively, anoxic pond (14), Aerobic Pond (15); Primary sedimentation basin (16), contact-oxidation pool (17) and secondary sedimentation basins (18);
Be provided with return line one (19) between said primary sedimentation basin (16) and the Aerobic Pond (15), be provided with return line two (20) between said secondary sedimentation basins (18) and the contact-oxidation pool (17);
Two outlets of said secondary sedimentation basins connect sludge thickener (21) and UW air supporting device (22) respectively;
Another outlet of said anaerobic pond (13) is communicated with another inlet of sludge thickener (21).
2. a kind of blue charcoal Waste Water Treatment according to claim 1 is characterized in that: be provided with micro-pore aeration in the said comprehensive adjustment pond (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120239292U CN202131190U (en) | 2011-07-08 | 2011-07-08 | Semi-coke wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120239292U CN202131190U (en) | 2011-07-08 | 2011-07-08 | Semi-coke wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202131190U true CN202131190U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120239292U Expired - Fee Related CN202131190U (en) | 2011-07-08 | 2011-07-08 | Semi-coke wastewater treatment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121774A (en) * | 2013-01-31 | 2013-05-29 | 陕西华祥能源科技集团有限公司 | Multi-stage recycling device and method for waste water in semi-coke production |
| CN103553269A (en) * | 2013-10-31 | 2014-02-05 | 北京清大国华环保科技有限公司 | Method and device for treating and recycling semi-coke wastewater |
| CN104773930A (en) * | 2015-04-30 | 2015-07-15 | 中国华电工程(集团)有限公司 | Semi-coke waste water treatment system and technology |
| CN105601055A (en) * | 2016-03-21 | 2016-05-25 | 中国矿业大学 | Semi-coke wastewater multi-level treatment technology |
| CN112573769A (en) * | 2020-12-09 | 2021-03-30 | 江苏鲲鹏环保工程技术有限公司 | High-efficiency treatment device and treatment method for industrial coking coal wastewater |
-
2011
- 2011-07-08 CN CN201120239292U patent/CN202131190U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121774A (en) * | 2013-01-31 | 2013-05-29 | 陕西华祥能源科技集团有限公司 | Multi-stage recycling device and method for waste water in semi-coke production |
| CN103553269A (en) * | 2013-10-31 | 2014-02-05 | 北京清大国华环保科技有限公司 | Method and device for treating and recycling semi-coke wastewater |
| CN104773930A (en) * | 2015-04-30 | 2015-07-15 | 中国华电工程(集团)有限公司 | Semi-coke waste water treatment system and technology |
| CN105601055A (en) * | 2016-03-21 | 2016-05-25 | 中国矿业大学 | Semi-coke wastewater multi-level treatment technology |
| CN105601055B (en) * | 2016-03-21 | 2019-03-29 | 中国矿业大学 | A kind of semi-coke wastewater multilevel processing technology |
| CN112573769A (en) * | 2020-12-09 | 2021-03-30 | 江苏鲲鹏环保工程技术有限公司 | High-efficiency treatment device and treatment method for industrial coking coal wastewater |
| CN112573769B (en) * | 2020-12-09 | 2022-09-13 | 江苏鲲鹏环保工程技术有限公司 | High-efficiency treatment device and treatment method for industrial coking coal wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120708 |