CN103183394A - Method for treating wastewater through absorption method - Google Patents
Method for treating wastewater through absorption method Download PDFInfo
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- CN103183394A CN103183394A CN201110460980XA CN201110460980A CN103183394A CN 103183394 A CN103183394 A CN 103183394A CN 201110460980X A CN201110460980X A CN 201110460980XA CN 201110460980 A CN201110460980 A CN 201110460980A CN 103183394 A CN103183394 A CN 103183394A
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- waste water
- activated carbon
- composite powder
- sorbent material
- water body
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Abstract
The invention discloses a method for treating wastewater through an absorption method. The wastewater is treated by pouring a composite powder adsorbent into a wastewater body. The composite powder adsorbent comprises uniformly mixed powder activated carbon and microorganism; the weight ratio of the powder activated carbon to the microorganism is 1:(3.0-9.0); the pouring amount of the composite powder adsorbent in the water body is 0.3-1.5kg/m<3>; and the treatment time is controlled to be 20-120min. Compared with the method that pure powder activated carbon or microorganism is used as the absorbent, the method has the advantages that the operation cost is greatly lowered, the dispersion property of the absorbent in the water body is improved, and the absorbent shows good elimination effect on the amine and the nitrogen, so that the method is particularly suitable for being used in match with an activated sludge method process.
Description
Technical field
The present invention relates to a kind of absorption method and handle the method for industry or sanitary wastewater, particularly adopt the absorbing process processing industry of the sorbent material that contains gac or the method for sanitary wastewater.
Background technology
At present, industry or sanitary wastewater adopt biological process to carry out purifying treatment morely, and be common as activated sludge process or biomembrance process etc.Biological process is handled waster water process and is had less investment, running cost is low and plurality of advantages such as stable operation, but it is relatively poor that its shortcoming is shock-resistance, in case meet with the impact of high-concentration waste water, system just is difficult to make water outlet up to standard, thus the waste water of higher concentration even can cause microbial death to make mud inactivation or biofilm disruption.Therefore, the biological process Waste Water Treatment generally all need be equipped with the intensive treatment unit of physics method or chemical method, to resist the impact of high-concentration waste water.Wherein, absorption method technology often is used, and is typical in active carbon adsorption.As the technical scheme that Chinese patent application 201010546162.7 is introduced, its Waste Water Treatment comprises the Two-Stage Biochemical processing unit, all has been equipped with one-level adsorption treatment unit before each biochemical treatment unit, and sorbent material is selected a ground and selected Powdered Activated Carbon for use.
Gac is to COD
Cr, pollutent such as ammonia nitrogen, short grained suspended substance and heavy metal treatment effect all fine, but that its maximum shortcoming is price is too high, life-time service can significantly improve the running cost of system.
Summary of the invention
The invention provides a kind of absorption method and handle the method for waste water, it adopts a kind of composite powder sorbent material that contains Powdered Activated Carbon, and technical problem to be solved is that running cost is obviously reduced, to remedy the defective that prior art exists.
Below be the concrete technical scheme of the present invention:
A kind of absorption method is handled the method for waste water, and this method is handled waste water by drop into the composite powder sorbent material in the waste water water body.This composite powder sorbent material is by forming through mixed uniformly Powdered Activated Carbon and diatomite, and the weight ratio of Powdered Activated Carbon and diatomite is 1: (3.0～9.0), the input amount of composite powder sorbent material is 0.3～1.5kg/m in the water body
3, the treatment time is controlled to be 20～120min.
The weight ratio of above-mentioned Powdered Activated Carbon and diatomite is preferably 1: (4.0～6.0); The input amount of composite powder sorbent material is preferably 0.6～1.2kg/m in the water body
3Treatment time is preferably 40～80min.
The placement position of composite powder sorbent material generally can be in water intake, and water body preferably imposes stirring when dropping into the composite powder sorbent material and in the adsorption process.
General biological process waste water treatment process waste water equal experience preliminary sedimentation process earlier before carrying out biochemical treatment handles to remove solid impurity in the waste water by sedimentation.Adsorption process can be combined with the preliminary sedimentation process when the present invention is used with the biological process waste water treatment process, namely direct water-in at preliminary sedimentation tank drops into compound adsorbent to water body.As be activated sludge process, can directly enter the biochemical treatment unit through the waste water of absorption/preliminary sedimentation cell processing; As be biomembrance process, then should behind absorption/preliminary sedimentation unit, increase by a filtering unit, waste water enters the biochemical treatment unit after removing sorbent material after filtration again.
Essence of the present invention is that sorbent material is improved, and namely adds diatomite by a certain percentage to form a kind of compound sorbent material in Powdered Activated Carbon commonly used.Diatomite has very high specific surface area, has stronger adsorptive power, and in adsorption process, it can be adsorbed onto the diatom surface to pollutent fast, through can moment sinking to separating with water body after the physics flocculation.Diatomite also has certain removal effect to ammonia nitrogen, its bigger advantage be price far below Powdered Activated Carbon, obviously descend than the Powdered Activated Carbon price by the compound adsorbent of the technical program preparation.
But stickiness was very high after diatomite absorbed moisture content, and very easy caking is reunited.In order to give full play to its absorption usefulness, must use special-purpose adding equipment that the water body that adds the zone is imposed very strong waterpower and stir, so that diatomite can be spread in water body preferably when using diatomite as sorbent material separately in the prior art.The inventor finds after a large amount of tests, after in diatomite, sneaking into a certain proportion of Powdered Activated Carbon, the diffustivity of mix powder in water body is able to obvious improvement, need not by specialized apparatus when adding, only relied on the waterpower that water body self flows that sorbent material is spread preferably.Certainly Powdered Activated Carbon needs to mix through even before coming into operation with diatomite, but diatomite is fine in the dispersing property under the drying regime fortunately, adopts general whipping device can realize both well blend.
Just visible positively effect of the present invention has been obtained complementary and collaborative effect after the mixing by a certain percentage of Powdered Activated Carbon and diatomite in sum.With respect to using pure Powdered Activated Carbon or diatomite as sorbent material, the invention has the advantages that: running cost obviously reduces; The diffusion of sorbent material in water body improves; Sorbent material has also presented removal effect preferably to ammonia nitrogen.The present invention is particularly suitable to be used with Activated Sludge Process, is used for when system is impacted by high-concentration waste water waste water being carried out intensive treatment, so that the COD of waste water
CrDrop to influent quality numerical value at ordinary times.Confirmed by testing data, handle COD by technical scheme provided by the invention
CrBe about 800mg/L, NH
3-N is about the petrochemical complex comprehensive wastewater of 40mg/L, COD
CrClearance can reach 44%, NH
3-N clearance is near 20%.
Embodiment
In embodiment and comparative example, COD
CrAdopt GB11914-89 to measure NH
3-N adopts GB7479-87 to measure.COD
CrClearance and NH
3The definition of-N clearance is respectively:
The sewage of each embodiment and comparative example test is the petrochemical complex comprehensive wastewater, and influent quality is:
COD
Cr: 800mg/L; NH
3-N:40mg/L; PH value 8.0
[embodiment 1～8]
In the beaker of 1000mL, put into 500mL waste water, impose stirring, drop into the compound adsorbent of aequum.Compound adsorbent is by forming through mixed uniformly Powdered Activated Carbon and diatomite, and composition, the input amount of each embodiment compound adsorbent see Table 1.Water body leaves standstill after stirring 20min, gets supernatant liquid after the time to required adsorption treatment and measures COD
CrAnd NH
3-N, test-results sees Table 2.
[comparative example 1～2]
Except sorbent material was pure Powdered Activated Carbon, all the other were with embodiment 1～8.The input amount of each comparative example sorbent material sees Table 1, and test-results sees Table 2.
Table 1.
Table 2.
Claims (6)
1. an absorption method is handled the method for waste water, this method is handled waste water by drop into the composite powder sorbent material in the waste water water body, it is characterized in that this composite powder sorbent material is by forming through mixed uniformly Powdered Activated Carbon and diatomite, the weight ratio of Powdered Activated Carbon and diatomite is 1: (3.0～9.0), the input amount of composite powder sorbent material is 0.3～1.5kg/m in the water body
3, the treatment time is controlled to be 20～120min.
2. absorption method according to claim 1 is handled the method for waste water, and the weight ratio that it is characterized in that described Powdered Activated Carbon and diatomite is 1: (4.0～6.0).
3. absorption method according to claim 1 is handled the method for waste water, and the input amount that it is characterized in that composite powder sorbent material in the described water body is 0.6～1.2kg/m
3
4. absorption method according to claim 1 is handled the method for waste water, it is characterized in that the described treatment time is 40～80min.
5. absorption method according to claim 1 is handled the method for waste water, and placement position is in water intake when it is characterized in that dropping into the composite powder sorbent material in the waste water water body.
6. absorption method according to claim 1 is handled the method for waste water, and water body imposes stirring when it is characterized in that dropping into the composite powder sorbent material in the waste water water body and in the adsorption process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460980XA CN103183394A (en) | 2011-12-31 | 2011-12-31 | Method for treating wastewater through absorption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460980XA CN103183394A (en) | 2011-12-31 | 2011-12-31 | Method for treating wastewater through absorption method |
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| Publication Number | Publication Date |
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| CN103183394A true CN103183394A (en) | 2013-07-03 |
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| CN201110460980XA Pending CN103183394A (en) | 2011-12-31 | 2011-12-31 | Method for treating wastewater through absorption method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874353A (en) * | 2015-05-26 | 2015-09-02 | 天俱时工程科技集团有限公司 | Sintered carbon rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119779A1 (en) * | 2004-01-22 | 2007-05-31 | Idemitsu Kosan Co., Ltd. | Method for treating raw water containing hardly decomposable substance |
| CN101279777A (en) * | 2008-05-11 | 2008-10-08 | 黄樟焱 | Water treatment unit with dynamic state material |
| CN101327984A (en) * | 2008-07-15 | 2008-12-24 | 南通立源水处理技术有限公司 | Multiple-effect pollute-removing water purification agent and use method thereof |
| CN101746842A (en) * | 2008-12-12 | 2010-06-23 | 同济大学 | Coupling water supply purifying method of biological reinforced powder active carbon and diatomite |
| CN101891271A (en) * | 2010-06-04 | 2010-11-24 | 清华大学 | Method of using diatomite to pretreat radioactive waste water |
-
2011
- 2011-12-31 CN CN201110460980XA patent/CN103183394A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119779A1 (en) * | 2004-01-22 | 2007-05-31 | Idemitsu Kosan Co., Ltd. | Method for treating raw water containing hardly decomposable substance |
| CN101279777A (en) * | 2008-05-11 | 2008-10-08 | 黄樟焱 | Water treatment unit with dynamic state material |
| CN101327984A (en) * | 2008-07-15 | 2008-12-24 | 南通立源水处理技术有限公司 | Multiple-effect pollute-removing water purification agent and use method thereof |
| CN101746842A (en) * | 2008-12-12 | 2010-06-23 | 同济大学 | Coupling water supply purifying method of biological reinforced powder active carbon and diatomite |
| CN101891271A (en) * | 2010-06-04 | 2010-11-24 | 清华大学 | Method of using diatomite to pretreat radioactive waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874353A (en) * | 2015-05-26 | 2015-09-02 | 天俱时工程科技集团有限公司 | Sintered carbon rod |
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Application publication date: 20130703 |