CN103359872B - Domestic wastewater treatment method - Google Patents
Domestic wastewater treatment method Download PDFInfo
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- CN103359872B CN103359872B CN201310331424.1A CN201310331424A CN103359872B CN 103359872 B CN103359872 B CN 103359872B CN 201310331424 A CN201310331424 A CN 201310331424A CN 103359872 B CN103359872 B CN 103359872B
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- magnetization
- waste water
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- ammonia nitrogen
- nitrogen removal
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Abstract
The invention provides a domestic wastewater treatment method. The domestic wastewater treatment method adopts a two-step magnetization technology. Through the domestic wastewater treatment method, organic matters in wastewater can be treated more easily. The domestic wastewater treatment method only comprises chemical treatment, does not comprise microbial fermentation treatment, and has short treatment time and good treatment effects. Water treated by the domestic wastewater treatment method satisfies reclaimed water recycle standards.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, be specifically related to the treatment process of one way of life waste water.
Background technology
Processing to sanitary wastewater, generally adopts biological method to process, and its treatment time is long, and processing cost is high.As < < industrial safety and environmental protection > > the 38th the 12nd phase of volume in 2012 disclose the document that name is called " research of MBR and catalytic oxidation combined treatment sanitary sewage ", wherein adopted the method for membrane bioreactor to process sanitary sewage, in its sewage treatment process, equipment used cost is high, long operational time, be unfavorable for sanitary sewage disposal, particularly rural domestic sewage treatment applies.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides one way of life method of wastewater treatment, its processing cost is low, and the treatment time is short, is applicable to general utilization and extention.
technical scheme of the present invention is as follows:
One way of life method of wastewater treatment, adopts following steps:
(1) get sanitary wastewater and import magnetization mixing reactor, under the magnetization condition that is 600～800mT in magneticstrength, magnetization 5～6s, makes magnetization waste water;
(2) the magnetization waste water of step (1) is added respectively to slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, stir, natural subsidence, extracts supernatant liquid; The add-on of slaked lime is 100-150mg/L, and the add-on of bodied ferric sulfate is 6mg/L～10 mg/L, and the add-on of high-efficient coagulant aide is 200mg/L～300mg/L; Described high-efficient coagulant aide is 150-200 object attapulgite clay;
(3) get the supernatant liquid of step (2), add hydrochloric acid adjust pH to 6.0～6.5, import magnetization mixing reactor, under the magnetization condition that is 400～500mT in magneticstrength, magnetization 4～6s, makes magnetization waste water;
(4) the magnetization waste water of step (3) directly imports agitated pool, hydro-oxidation sodium regulates PH to 7-8, the ratio that is 1:1.5 ~ 2.5 according to the mol ratio of ammonia-nitrogen, ammonia nitrogen removal reagent in magnetization waste water, add ammonia nitrogen removal reagent, after being uniformly mixed, add cationic starch-Dyhard RU 100-formaldehyde-poly ferric chloride flocculant agent, the add-on of flocculation agent is 1-2Kg/ ton water, continue to stir 20-30 minute, the waste water after stirring carries out sedimentation, and clear liquid pumps into more medium filter and filters; Described ammonia nitrogen removal reagent is that mol ratio is the MgCl of 0.5:0.5:1
2.6H
2o, CaCl
2and Na
2hPO
4;
(5) waste water of more medium filter is pumped in ammonia nitrogen removal strainer, carry out ammonia nitrogen removal processing, the ammonia nitrogen removal filtrate of ammonia nitrogen removal strainer is modified zeolite;
(6) by the waste water after step (5) filtration, add superoxol, the add-on of hydrogen peroxide is 100～200mg/L;
(7) waste water of step (6) is pumped into reduction reactor and carry out reduction reaction, reduction reactor is filled with the mixture of quartz sand, gac and macroporous resin;
(8) access of the waste water after reduction reactor cartridge filter, cartridge filter is that filter core is the micro-filtration of the pp spray fusing cotton of 3-5 μ m.
Described more medium filter is the strainer of flyash, hard coal and quartz sand layering place mat.
The present invention has following beneficial effect:
1. the present invention is through twice magnetization, and the organism in sanitary wastewater, after magnetization, is more easily adsorbed, and more easily removes, and removal efficiency is better.
2. first add slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, can remove most organism and heavy metal, facilitate postorder to process.
3. first after absorption and ammonia nitrogen removal processing, finally carry out again oxide treatment, provide cost savings, improved treatment effect.
4. cost of the present invention is low, has saved nanometer film processing; Present method is only passed through chemical treatment, the processing that do not undergo microbial fermentation, and the treatment time is short; Treatment effect is good, reaches middle water reuse standard completely.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
(1) get sanitary wastewater and import magnetization mixing reactor, under the magnetization condition that is 600～800mT in magneticstrength, magnetization 5～6s, makes magnetization waste water;
(2) the magnetization waste water of step (1) is added respectively to slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, stir, natural subsidence, extracts supernatant liquid; The add-on of slaked lime is 100mg/L, and the add-on of bodied ferric sulfate is 6mg/L, and the add-on of high-efficient coagulant aide is 200mg/L; Described high-efficient coagulant aide is 150-200 object attapulgite clay;
(3) get the supernatant liquid of step (2), add hydrochloric acid adjust pH to 6.0～6.5, import magnetization mixing reactor, under the magnetization condition that is 400～500mT in magneticstrength, magnetization 4～6s, makes magnetization waste water;
(4) the magnetization waste water of step (3) directly imports agitated pool, hydro-oxidation sodium regulates PH to 7-8, the ratio that is 1:1.5 according to the mol ratio of ammonia-nitrogen, ammonia nitrogen removal reagent in magnetization waste water, add ammonia nitrogen removal reagent, after being uniformly mixed, add cationic starch-Dyhard RU 100-formaldehyde-poly ferric chloride flocculant agent, the add-on of flocculation agent is 1Kg/ ton water, continue to stir 20-30 minute, the waste water after stirring carries out sedimentation, and clear liquid pumps into more medium filter and filters; Described ammonia nitrogen removal reagent is that mol ratio is the MgCl of 0.5:0.5:1
2.6H
2o, CaCl
2and Na
2hPO
4; Described more medium filter is the strainer of flyash, hard coal and quartz sand layering place mat;
(5) waste water of more medium filter is pumped in ammonia nitrogen removal strainer, carry out ammonia nitrogen removal processing, the ammonia nitrogen removal filtrate of ammonia nitrogen removal strainer is modified zeolite;
(6) by the waste water after step (5) filtration, add superoxol, the add-on of hydrogen peroxide is 100～200mg/L;
(7) waste water of step (6) is pumped into reduction reactor and carry out reduction reaction, reduction reactor is filled with the mixture of quartz sand, gac and macroporous resin;
(8) access of the waste water after reduction reactor cartridge filter, cartridge filter is that filter core is the micro-filtration of the pp spray fusing cotton of 3-5 μ m.
Embodiment 2
(1) get sanitary wastewater and import magnetization mixing reactor, under the magnetization condition that is 600～800mT in magneticstrength, magnetization 5～6s, makes magnetization waste water;
(2) the magnetization waste water of step (1) is added respectively to slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, stir, natural subsidence, extracts supernatant liquid; The add-on of slaked lime is 150mg/L, and the add-on of bodied ferric sulfate is 10 mg/L, and the add-on of high-efficient coagulant aide is 300mg/L; Described high-efficient coagulant aide is 150-200 object attapulgite clay;
(3) get the supernatant liquid of step (2), add hydrochloric acid adjust pH to 6.0～6.5, import magnetization mixing reactor, under the magnetization condition that is 400～500mT in magneticstrength, magnetization 4～6s, makes magnetization waste water;
(4) the magnetization waste water of step (3) directly imports agitated pool, hydro-oxidation sodium regulates PH to 7-8, the ratio that is 1:2.5 according to the mol ratio of ammonia-nitrogen, ammonia nitrogen removal reagent in magnetization waste water, add ammonia nitrogen removal reagent, after being uniformly mixed, add cationic starch-Dyhard RU 100-formaldehyde-poly ferric chloride flocculant agent, the add-on of flocculation agent is 2Kg/ ton water, continue to stir 20-30 minute, the waste water after stirring carries out sedimentation, and clear liquid pumps into more medium filter and filters; Described ammonia nitrogen removal reagent is that mol ratio is the MgCl of 0.5:0.5:1
2.6H
2o, CaCl
2and Na
2hPO
4; Described more medium filter is the strainer of flyash, hard coal and quartz sand layering place mat;
(5) waste water of more medium filter is pumped in ammonia nitrogen removal strainer, carry out ammonia nitrogen removal processing, the ammonia nitrogen removal filtrate of ammonia nitrogen removal strainer is modified zeolite;
(6) by the waste water after step (5) filtration, add superoxol, the add-on of hydrogen peroxide is 100mg/L;
(7) waste water of step (6) is pumped into reduction reactor and carry out reduction reaction, reduction reactor is filled with the mixture of quartz sand, gac and macroporous resin;
(8) access of the waste water after reduction reactor cartridge filter, cartridge filter is that filter core is the micro-filtration of the pp spray fusing cotton of 3-5 μ m.
Embodiment 3
(1) get sanitary wastewater and import magnetization mixing reactor, under the magnetization condition that is 600～800mT in magneticstrength, magnetization 5～6s, makes magnetization waste water;
(2) the magnetization waste water of step (1) is added respectively to slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, stir, natural subsidence, extracts supernatant liquid; The add-on of slaked lime is 120mg/L, and the add-on of bodied ferric sulfate is 8 mg/L, and the add-on of high-efficient coagulant aide is 250mg/L; Described high-efficient coagulant aide is 150-200 object attapulgite clay;
(3) get the supernatant liquid of step (2), add hydrochloric acid adjust pH to 6.0～6.5, import magnetization mixing reactor, under the magnetization condition that is 400～500mT in magneticstrength, magnetization 4～6s, makes magnetization waste water;
(4) the magnetization waste water of step (3) directly imports agitated pool, hydro-oxidation sodium regulates PH to 7-8, the ratio that is 1:2 according to the mol ratio of ammonia-nitrogen, ammonia nitrogen removal reagent in magnetization waste water, add ammonia nitrogen removal reagent, after being uniformly mixed, add cationic starch-Dyhard RU 100-formaldehyde-poly ferric chloride flocculant agent, the add-on of flocculation agent is 1.5Kg/ ton water, continue to stir 20-30 minute, the waste water after stirring carries out sedimentation, and clear liquid pumps into more medium filter and filters; Described ammonia nitrogen removal reagent is that mol ratio is the MgCl of 0.5:0.5:1
2.6H
2o, CaCl
2and Na
2hPO
4; Described more medium filter is the strainer of flyash, hard coal and quartz sand layering place mat
(5) waste water of more medium filter is pumped in ammonia nitrogen removal strainer, carry out ammonia nitrogen removal processing, the ammonia nitrogen removal filtrate of ammonia nitrogen removal strainer is modified zeolite;
(6) by the waste water after step (5) filtration, add superoxol, the add-on of hydrogen peroxide is 150mg/L;
(7) waste water of step (6) is pumped into reduction reactor and carry out reduction reaction, reduction reactor is filled with the mixture of quartz sand, gac and macroporous resin;
(8) access of the waste water after reduction reactor cartridge filter, cartridge filter is that filter core is the micro-filtration of the pp spray fusing cotton of 3-5 μ m.
The relevant data of three embodiment is as follows:
As can be seen from the above data, each check item of waste water after method of the present invention is processed has obvious decline, reached the emission standard of the sanitary sewage of GB 18918-2002, so the effluent quality of sanitary wastewater treatment process provided by the invention is good, reach the standard of middle water reuse completely.
Claims (2)
1. the treatment process of one way of life waste water, adopts following steps:
(1) get sanitary wastewater and import magnetization mixing reactor, under the magnetization condition that is 600～800mT in magneticstrength, magnetization 5～6s, makes magnetization waste water;
(2) the magnetization waste water of step (1) is added respectively to slaked lime, coagulant polymeric ferric sulfate and high-efficient coagulant aide, stir, natural subsidence, extracts supernatant liquid; The add-on of slaked lime is 100-150mg/L, and the add-on of bodied ferric sulfate is 6mg/L～10 mg/L, and the add-on of high-efficient coagulant aide is 200mg/L～300mg/L; Described high-efficient coagulant aide is 150-200 object attapulgite clay;
(3) get the supernatant liquid of step (2), add hydrochloric acid adjust pH to 6.0～6.5, import magnetization mixing reactor, under the magnetization condition that is 400～500mT in magneticstrength, magnetization 4～6s, makes magnetization waste water;
(4) the magnetization waste water of step (3) directly imports agitated pool, hydro-oxidation sodium regulates pH to 7-8, the ratio that is 1:1.5 ~ 2.5 according to the mol ratio of ammonia-nitrogen, ammonia nitrogen removal reagent in magnetization waste water, add ammonia nitrogen removal reagent, after being uniformly mixed, add cationic starch-Dyhard RU 100-formaldehyde-poly ferric chloride flocculant agent, the add-on of flocculation agent is 1-2Kg/ ton water, continue to stir 20-30 minute, the waste water after stirring carries out sedimentation, and clear liquid pumps into more medium filter and filters; Described ammonia nitrogen removal reagent is that mol ratio is the MgCl of 0.5:0.5:1
2.6H
2o, CaCl
2and Na
2hPO
4;
(5) waste water of more medium filter is pumped in ammonia nitrogen removal strainer, carry out ammonia nitrogen removal processing, the ammonia nitrogen removal filtrate of ammonia nitrogen removal strainer is modified zeolite;
(6) by the waste water after step (5) filtration, add superoxol, the add-on of hydrogen peroxide is 100～200mg/L;
(7) waste water of step (6) is pumped into reduction reactor and carry out reduction reaction, reduction reactor is filled with the mixture of quartz sand, gac and macroporous resin;
(8) access of the waste water after reduction reactor cartridge filter, cartridge filter is that filter core is the micro-filtration of the pp spray fusing cotton of 3-5 μ m.
2. the treatment process of sanitary wastewater according to claim 1, is characterized in that: described more medium filter is the strainer of flyash, hard coal and quartz sand layering place mat.
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| CN201310331424.1A CN103359872B (en) | 2013-08-02 | 2013-08-02 | Domestic wastewater treatment method |
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|---|---|---|---|
| CN201310331424.1A CN103359872B (en) | 2013-08-02 | 2013-08-02 | Domestic wastewater treatment method |
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| CN103359872B true CN103359872B (en) | 2014-11-05 |
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| JP3009353B2 (en) * | 1995-08-23 | 2000-02-14 | 幸子 林 | Water treatment method and water treatment equipment |
| KR100364359B1 (en) * | 2000-06-22 | 2002-12-12 | 근 학 서 | Method and Apparatus for Advanced Treatment of Sewage and Industrial Wastewater Using Magnetic Force and Biological Film |
| CN1165491C (en) * | 2001-12-27 | 2004-09-08 | 陈曦 | Coupling field oxidation sewage treatment method |
| CN102107934A (en) * | 2010-12-30 | 2011-06-29 | 内蒙古科技大学 | Electromagnetic coagulation treatment method |
| CN102863114B (en) * | 2012-10-16 | 2013-07-10 | 山东省环境保护科学研究设计院 | Deep treatment method for pulping papermaking wastewater |
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Inventor after: Wang Xiaohong Inventor after: Jin Peijun Inventor after: Wang Zhijun Inventor before: Shi Xin |
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Free format text: CORRECT: ADDRESS; FROM: 250000 JINAN, SHANDONG PROVINCE TO: 310000 HANGZHOU, ZHEJIANG PROVINCE Free format text: CORRECT: INVENTOR; FROM: SHI XIN TO: WANG XIAOHONG JIN PEIJUN WANG ZHIJUN |
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Effective date of registration: 20141008 Address after: 411, room 25, building 9, nine Sheng Road, Hangzhou, Zhejiang, Jianggan District 310000, China Applicant after: Zhejiang He Hong Environmental Protection Technology Co., Ltd Address before: 250000, Shun King Garden, No. 6, Tian Jia Dong Road, Tianqiao District, Shandong, Ji'nan, 5-2-1401 Applicant before: Shi Xin |
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