CN101190806A - Treatment method for waste water - Google Patents
Treatment method for waste water Download PDFInfo
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- CN101190806A CN101190806A CNA2006101187504A CN200610118750A CN101190806A CN 101190806 A CN101190806 A CN 101190806A CN A2006101187504 A CNA2006101187504 A CN A2006101187504A CN 200610118750 A CN200610118750 A CN 200610118750A CN 101190806 A CN101190806 A CN 101190806A
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Abstract
A first-stage pretreatment method of industrial waste water with organic contamination is characterized in that fuel coal used in boilers is taken as a first-stage adsorption material and active carbon powder is used as a second-stage adsorption material. The method is characterized by economy and convenience and can dramatically reduce COD in waste water and further reduce the difficulty in following treatments of the waste water.
Description
Technical field
The present invention relates to the sewage disposal technology in environmental protection field, specifically, relate to and a kind of the waste water that produces in the industrial production is carried out the pretreated treatment technology of one-level.
Background technology
Along with science and technology and expanding economy, people's standard of living improves constantly, and is corresponding therewith, and people's environmental consciousness is also in continuous enhancing, and relevant rules are strict day by day.For the waste water that produces in the industrial production be national regulation must in addition strict restriction and one of " three wastes " administered.At present, the pretreatment process for the waste water that contains organic pollutant that produces in the industrial production generally has tamisage, the precipitator method, floating method and pre-exposure method etc.Tamisage equipment commonly used is grid and screen cloth, is mainly used to hold back in the waste water size greater than the suspended substance of grizzly bar gap or sieve screen apertures; The precipitator method need be provided with settling tank, and its principle is by the precipitable solid in the settlement separate waste water, and this solid can be an inorganics, also can be organism, but all must have the density bigger than water; Floating method usually need add special medicament, is intended to remove the density pollutent littler than water in the waste water, for example as oil and so on suspension liquid.
Above-mentioned three kinds of methods are obviously not too suitable with removing the tiny organism of the particle that often has in the trade effluent.
The pre-exposure method can make the particle of pollutent become big, the reducing substances in all right oxidized waste water, and the inventive method has partly adopted the principle of this method, i.e. charcoal absorption principle.
Summary of the invention
The present invention aims to provide a kind of economy and trade effluent one-level pretreatment process easily, it is different from above-mentioned general method of wastewater treatment commonly used, but utilize general enterprise existing resource, the trade effluent that contains one or more organic pollutants is carried out the one-level pre-treatment.The characteristics of this method are: economical, convenient, can reduce the COD (chemical oxygen demand (COD)) in the waste water significantly.
The present invention is achieved in that to be that the feature of described method of wastewater treatment is, with boiler with coal-fired as first step sorbing material, with Powdered Activated Carbon as second stage sorbing material.During described boiler is selected from fire coal, low-grade raw coal or washed coal; Just common steam coal, it both can be used as steam coal and had used, and can be used as the sorbent material that contains organic wastewater of the present invention again.It can be meager lean coal, lean coal and No. two coals of boiler in the bituminous coal, just price cheaper in, low-grade raw coal or washed coal, be excellent wherein to select raw coal for use.The inventive method does not have special requirement for the granularity of fire coal, if can select the powdery raw coal of granularity less than 6mm for use, effect can be better.
Described Powdered Activated Carbon is as the starting material manufacturing and with the powdered active carbon of steam activation with wood chip or peat.The present invention does not have special restriction provision for the granularity of gac yet, so long as pulverous, just can use.
When enforcement is of the present invention, fire coal can be deposited in two coal-fired warehouses that are used alternatingly, the top of warehouse is provided with contractile ceiling and waste water spray equipment, warehouse ground is provided with crisscross trench, and the width of trench and the degree of depth will rationally be provided with according to the floor area of warehouse and the volume of warehouse.Pending waste water, after coal-fired first step absorption, is converged in and flows into the charcoal absorption pond in the trench on fire coal by waste water spray equipment spray.
Position, described charcoal absorption pond is lower than trench and communicates with trench, also comprises two interchangeable adsorption tanks, and this adsorption tank is equipped with whipping appts and air bubbling pipe.Press wastewater flow rate and add proper amount of active carbon, be generally 0.5～5 quality % of wastewater flow rate.Promptly start whipping appts and bubbling after adding gac, stirring velocity is generally 60～90 rev/mins, and is good with 60 rev/mins.The bubble point of bubbling pipe is decided on the capacity in charcoal absorption pond, with 20m
3Adsorption tank be example, generally need establish 2～6 bubble points, bubbling rate is regulated by the treatment capacity of waste water, generally adopts 1～3m
3/ min air blasts.Implementing when of the present invention, fire coal can repeatedly use, and mainly determines according to the concentration of the pollutent that contains in the treatment capacity of waste water and the waste water.Gac then is disposable.After charcoal absorption is handled, water sampling is analyzed, and when the COD clearance reaches 80% when above, the waste water that will contain gac sucks pressure filter with pump, water after the filtration is sent into secondary or tertiary treatment system, and the gac that stays is sent into boiler house fuel use as a supplement.
When enforcement is of the present invention, be 100～200 tons if set the consumption of bunker coal, the day output that contains organic waste water is 10～30 tons, and the COD of waste water is 20000～40000mg/L, and then fire coal can be changed once every 10～15 days.
By as seen above-mentioned, the advantage of the inventive method is fairly obvious, at first it has adopted the ready-made existing resource of general factory and enterprise---and coal-fired as first step sorbing material, so this method has economy, characteristics easily, is expected obviously to reduce the total expenses of wastewater treatment; Secondly, adopt the inventive method, can reduce the COD of waste water significantly, thereby reduce the difficulty of waste water subsequent disposal greatly.
Description of drawings
Fig. 1 implements the tooling synoptic diagram that uses when of the present invention.
Number in the figure is: 1---telescopic ceiling; 2---the waste water spray equipment; 3---coal-fired warehouse; 4---trench; 5---whipping appts; 6---the air bubbling pipe; 7---the charcoal absorption pond.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but the present invention is in no way limited to these embodiment.
Embodiment 1
This example is intended to be illustrated under the laboratory condition, implements effect of the present invention.
At a volume is in the funnel of 5L, load coal-fired about 3kg, add the trade effluent 500g (COD of waste water is 22040mg/L) that contains organic pollutant, in the waste water that comes out through coal-fired adsorption filtration, add the 12g Powdered Activated Carbon, after stirring 2h, filter the water sampling analysis, COD is 3967mg/L, and the clearance of COD is 82%.
Referring to Fig. 1, in two warehouses [3] that can hold the 100T coal, load coal-fired 100T respectively, the trade effluent (COD of waste water is 18804mg/L) that contains organic pollutant sprays in one of them warehouse by spray equipment [2], through after the coal-fired adsorption filtration, waste water converges one that flows in two charcoal absorption ponds [7] by trench [4], and the capacity in each pond is about 20m
3, add about 2 quality % powdered active carbons, and stir and bubbling is handled by whipping appts [5] and air bubbling pipe [6], then, with pump waste water is sent into the pressure filter press filtration after, transfer the next stage treatment system.Before the press filtration, the water sampling analysis, COD is 1692mg/L, clearance is 91%.
Claims (4)
1. a method of wastewater treatment is characterized in that, with boiler with coal-fired as first step sorbing material, with Powdered Activated Carbon as second stage sorbing material.
2. method of wastewater treatment according to claim 1 is characterized in that, during described boiler is selected from fire coal, low-grade raw coal or washed coal; Described Powdered Activated Carbon is as the starting material manufacturing and with the powdered active carbon of steam activation with wood chip or peat.
3. method of wastewater treatment according to claim 1 and 2, it is characterized in that, described fire coal is deposited in two coal-fired warehouses [3] that are used alternatingly, and the top of warehouse is provided with contractile ceiling [1] and waste water spray equipment [2], and warehouse ground is provided with crisscross trench [4].
4. method of wastewater treatment according to claim 1 and 2, it is characterized in that, from the effusive waste water of trench [4] flow into the position be lower than trench [4] and with two interchangeable charcoal absorption ponds [7] that trench [4] communicates, this adsorption tank is equipped with whipping appts [5] and air bubbling pipe [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101187504A CN101190806B (en) | 2006-11-24 | 2006-11-24 | Treatment method for waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101187504A CN101190806B (en) | 2006-11-24 | 2006-11-24 | Treatment method for waste water |
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| CN101190806A true CN101190806A (en) | 2008-06-04 |
| CN101190806B CN101190806B (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101187504A Expired - Fee Related CN101190806B (en) | 2006-11-24 | 2006-11-24 | Treatment method for waste water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445675A (en) * | 2014-10-28 | 2015-03-25 | 中国科学院新疆理化技术研究所 | Method for treating mercury-containing wastewater by virtue of demercuration adsorbent material |
| CN105110499A (en) * | 2015-09-28 | 2015-12-02 | 胡日中 | Terminal processing technique of industrial wastewater |
| CN108128836A (en) * | 2017-12-27 | 2018-06-08 | 宿州智慧农业研究院 | A kind of biomass carbon multilayer pot type adsorption treatment on sewage method |
| CN109081461A (en) * | 2018-09-06 | 2018-12-25 | 浙江海河环境科技有限公司 | A kind of Machine-made Sand waste water zero dosing, Zero discharge treatment method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2153472C2 (en) * | 1997-08-05 | 2000-07-27 | Институт химии нефти СО РАН | Vulcanizing plant waste water treatment process |
| CN1319568A (en) * | 2000-12-12 | 2001-10-31 | 庄彦杰 | Fully automatic purifying pool |
| CN1515343B (en) * | 2003-01-11 | 2014-08-27 | 北京环能海臣科技有限公司 | Sewage treatment equipment by using coal as filtering material |
| CN1285520C (en) * | 2004-05-26 | 2006-11-22 | 哈尔滨工业大学 | Integral phyical chemical treating method by bathing waste water reutilization |
-
2006
- 2006-11-24 CN CN2006101187504A patent/CN101190806B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445675A (en) * | 2014-10-28 | 2015-03-25 | 中国科学院新疆理化技术研究所 | Method for treating mercury-containing wastewater by virtue of demercuration adsorbent material |
| CN105110499A (en) * | 2015-09-28 | 2015-12-02 | 胡日中 | Terminal processing technique of industrial wastewater |
| CN108128836A (en) * | 2017-12-27 | 2018-06-08 | 宿州智慧农业研究院 | A kind of biomass carbon multilayer pot type adsorption treatment on sewage method |
| CN109081461A (en) * | 2018-09-06 | 2018-12-25 | 浙江海河环境科技有限公司 | A kind of Machine-made Sand waste water zero dosing, Zero discharge treatment method |
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| Publication number | Publication date |
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| CN101190806B (en) | 2010-04-14 |
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Granted publication date: 20100414 Termination date: 20131124 |