CN101041519A - Sewage treatment method - Google Patents
Sewage treatment method Download PDFInfo
- Publication number
- CN101041519A CN101041519A CNA2007100086322A CN200710008632A CN101041519A CN 101041519 A CN101041519 A CN 101041519A CN A2007100086322 A CNA2007100086322 A CN A2007100086322A CN 200710008632 A CN200710008632 A CN 200710008632A CN 101041519 A CN101041519 A CN 101041519A
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- Prior art keywords
- sewage
- solubility
- aluminum chloride
- evacuated
- polymerize aluminum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a disposing method of waste water with low cost and simply craft, which comprises the following steps: pumping waste water into settling tank; adding into polyaluminium chloride; proceeding flocculent deposit; pumping into aeration tank; increasing dissolved oxygen of waste water; pumping into coagulate reacting tank; proceeding further flocculent deposit with polyaluminium and polyacrylamide; proceeding physical filtration with non-valve filter; getting clear water; sterilizing with chlorine dioxide bactericidal agent; using to production of high-grade copying paper. This waste water disposing method can economize productive expenditure, which can avoid bringing more polluting source.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, the water quality after being handled by this method is applicable to the production tissue paper.
Background technology
Production of paper products enterprise takes different treatment processs according to paper product kind of being produced and production technique to different surface water or underground water.For region following the line of the sea sanitary sewage, the more serious river of industrial sewage discharging, quantity of wastewater effluent substantially exceeds the self-purification capacity in river, and the biochemical oxygen demand (BOD) of water quality increases greatly, and dissolved oxygen is extremely low, and excrement colibacillus group is considerably beyond surface water II class standard.When this kind sewage is used to produce boxboard, only need carry out precipitation process to suspended particle in the water gets final product, with reference to figure 1, sanitary sewage, industrial sewage (being referred to as the water source here) are extracted in the round pond by the one-level pump house, this circle pond is an inclined-plate clarifying basin, 0.05～0.1 adds polymerize aluminum chloride by weight percentage in this settling tank, thereby sewage is played the flocculation sediment effect, reach the water quality requirement of boxboard, but aforementioned sewage treatment process does not reach the requirement of producing high-grade tissue paper.At present more sewage water treatment method is processing and the recovery at papermaking wastewater, industrial sewage, requires study as for being used to produce high-grade tissue paper after sanitary sewage, industrial sewage are handled targetedly.
Summary of the invention
The purpose of this invention is to provide that a kind of cost is low, the simple sewage water treatment method of technology.
The technical solution adopted in the present invention is such: a kind of sewage water treatment method comprises the steps:
A, sewage is evacuated to settling tank with water pump, adds weight percent and be 0.05～0.1 polymerize aluminum chloride, the solubility of described polymerize aluminum chloride is 4%～6%, is stirred at normal temperatures and pressures simultaneously and mixes postprecipitation at least 5 minutes;
B, the sewage after the aforementioned precipitation process is evacuated to the aeration tank, carries out continuous aeration at normal temperatures and pressures and handle, be provided with aeration tube in the described aeration tank, described aeration tube one end is connected with fan outlet, and the aeration tube the other end is provided with some solarization air caps;
C, the sewage after aforementioned aeration handled are evacuated to coagulation reaction tank, add weight percent and be 0.02～0.05 polymerize aluminum chloride and 0.005～0.01 Polyacrylamide, the solubility of described polymerize aluminum chloride is 4%～6%, the solubility of described Polyacrylamide is 0.05%～0.2%, and carries out flocculation sediment at least 15 minutes under normal temperature and pressure;
D, the sewage in the aforementioned coagulation reaction tank is evacuated to valveless filtering pool filters;
E, the clear water after aforementioned valveless filtering pool filtered are evacuated to clean water basin, add weight percent and are 0.005～0.01 dioxide peroxide and promptly can be used for paper after carrying out germicidal treatment under the normal temperature and pressure, and the solubility of described dioxide peroxide is 4%～6%.
Above-mentioned sewage water treatment method, the solubility of polymerize aluminum chloride is 5% among the described step a.
Above-mentioned sewage water treatment method, the solubility of polymerize aluminum chloride is 5% among the described step c, the solubility of Polyacrylamide is 0.1%.
Above-mentioned sewage water treatment method, the solubility of dioxide peroxide is 5% among the described step e.
The invention has the beneficial effects as follows practical situation, sanitary sewage, production waste through being used for the production of high-grade tissue paper after handling targetedly, are saved the paper expenditure on the one hand, reduce production costs in conjunction with current production; Recycle sanitary sewage, production waste are avoided environment is brought more source of pollution on the other hand, help environment protection.
Description of drawings
Fig. 1 is known paper grade (stock) sewage disposal schema;
Fig. 2 is an embodiment sewage disposal schema;
Embodiment
With reference to figure 2, embodiment discloses a kind of sewage water treatment method, and it comprises the steps:
A, sewage is evacuated to settling tank with water pump, adding weight percent by volume pump is 0.1 polymerize aluminum chloride, and the solubility of described polymerize aluminum chloride is 5%, and the back that stirs at normal temperatures and pressures simultaneously was to the impurity flocculation sediment in the sewage 10 minutes;
B, the sewage after the aforementioned precipitation process is evacuated to the aeration tank, carrying out continuous aeration at normal temperatures and pressures handles, be provided with aeration tube in the described aeration tank, described aeration tube one end is connected with fan outlet, the aeration tube the other end is provided with some solarization air caps, the aeration tank can be killed the anerobe in the sewage on the one hand, can increase the dissolved oxygen of sewage on the other hand;
C, the sewage after aforementioned aeration handled are evacuated to coagulation reaction tank, adding weight percent with volume pump is 0.05 polymerize aluminum chloride and 0.01 Polyacrylamide, the solubility of described polymerize aluminum chloride is 5%, the solubility of described Polyacrylamide is 0.1%, and under normal temperature and pressure flocculation sediment 20 minutes;
D, the sewage in the coagulation reaction tank is evacuated to valveless filtering pool filters, valveless filtering pool is a kind of known water treating equipment, mainly is that the granule foreign to sewage filters interception function, does not repeat them here;
E, the clear water after aforementioned valveless filtering pool filtered are evacuated to clean water basin, and adding weight percent with volume pump is that 0.01 dioxide peroxide promptly can be used for paper after carrying out germicidal treatment under the normal temperature and pressure, and the solubility of described dioxide peroxide is 5%.
In the foregoing description, the solubility of described polymer alumina, Polyacrylamide, dioxide peroxide and degree all are feasible in whole open scope, can both reach purpose of the present invention, be nothing but for the poor especially occasion of water quality, strengthen the injected volume and the solubility of each liquid medicine, sterilant, otherwise then reduce injected volume or solubility accordingly.
Claims (4)
1, a kind of sewage water treatment method is characterized in that comprising the steps:
A, sewage is evacuated to settling tank with water pump, adds weight percent and be 0.05～0.1 polymerize aluminum chloride, the solubility of described polymerize aluminum chloride is 4%～6%, is stirred at normal temperatures and pressures simultaneously and mixes postprecipitation at least 5 minutes;
B, the sewage after the aforementioned precipitation process is evacuated to the aeration tank, carries out continuous aeration at normal temperatures and pressures and handle, be provided with aeration tube in the described aeration tank, described aeration tube one end is connected with fan outlet, and the aeration tube the other end is provided with some solarization air caps;
C, the sewage after aforementioned aeration handled are evacuated to coagulation reaction tank, add weight percent and be 0.02～0.05 polymerize aluminum chloride and 0.005～0.01 Polyacrylamide, the solubility of described polymerize aluminum chloride is 4%～6%, the solubility of described Polyacrylamide is 0.05%～0.2%, and carries out flocculation sediment at least 15 minutes under normal temperature and pressure;
D, the sewage in the aforementioned coagulation reaction tank is evacuated to valveless filtering pool filters;
E, the clear water after aforementioned valveless filtering pool filtered are evacuated to clean water basin, add weight percent and are 0.005～0.01 dioxide peroxide and promptly can be used for paper after carrying out germicidal treatment under the normal temperature and pressure, and the solubility of described dioxide peroxide is 4%～6%.
2, sewage water treatment method according to claim 1 is characterized in that: the solubility of polymerize aluminum chloride is 5% among the described step a.
3, sewage water treatment method according to claim 1 and 2 is characterized in that: the solubility of polymerize aluminum chloride is 5% among the described step c, and the solubility of Polyacrylamide is 0.1%.
4, sewage water treatment method according to claim 3 is characterized in that: the solubility of dioxide peroxide is 5% among the described step e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100086322A CN101041519A (en) | 2007-02-14 | 2007-02-14 | Sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100086322A CN101041519A (en) | 2007-02-14 | 2007-02-14 | Sewage treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101041519A true CN101041519A (en) | 2007-09-26 |
Family
ID=38807345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100086322A Pending CN101041519A (en) | 2007-02-14 | 2007-02-14 | Sewage treatment method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101041519A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438950A (en) * | 2009-01-13 | 2012-05-02 | 捷通国际有限公司 | Gravity feed water treatment system |
| CN103508612A (en) * | 2012-06-15 | 2014-01-15 | 苏州腾辉环保科技有限公司 | Treatment process for papermaking industrial wastewater |
| CN103601339A (en) * | 2013-11-06 | 2014-02-26 | 西安建筑科技大学 | Process system for synergically removing Fe, Mn and ammonia nitrogen in composite micropolluted source water |
| CN105036478A (en) * | 2015-08-05 | 2015-11-11 | 枞阳县宇瑞环保科技有限公司 | Method of treatment of domestic sewage |
-
2007
- 2007-02-14 CN CNA2007100086322A patent/CN101041519A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438950A (en) * | 2009-01-13 | 2012-05-02 | 捷通国际有限公司 | Gravity feed water treatment system |
| CN102438950B (en) * | 2009-01-13 | 2016-10-05 | 捷通国际有限公司 | Gravity feed water treatment system |
| CN103508612A (en) * | 2012-06-15 | 2014-01-15 | 苏州腾辉环保科技有限公司 | Treatment process for papermaking industrial wastewater |
| CN103601339A (en) * | 2013-11-06 | 2014-02-26 | 西安建筑科技大学 | Process system for synergically removing Fe, Mn and ammonia nitrogen in composite micropolluted source water |
| CN105036478A (en) * | 2015-08-05 | 2015-11-11 | 枞阳县宇瑞环保科技有限公司 | Method of treatment of domestic sewage |
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Open date: 20070926 |