CN104803462A - Technological method for advanced sewage treatment - Google Patents

Technological method for advanced sewage treatment Download PDF

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Publication number
CN104803462A
CN104803462A CN201510173056.1A CN201510173056A CN104803462A CN 104803462 A CN104803462 A CN 104803462A CN 201510173056 A CN201510173056 A CN 201510173056A CN 104803462 A CN104803462 A CN 104803462A
Authority
CN
China
Prior art keywords
floccule
processing method
flocculation
alumen ustum
alum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510173056.1A
Other languages
Chinese (zh)
Inventor
严美娟
张宏庆
王清清
严娟
沙齐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Huaxin Environmental Protection Equipment Co Ltd
Original Assignee
Nantong Huaxin Environmental Protection Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong Huaxin Environmental Protection Equipment Co Ltd filed Critical Nantong Huaxin Environmental Protection Equipment Co Ltd
Priority to CN201510173056.1A priority Critical patent/CN104803462A/en
Publication of CN104803462A publication Critical patent/CN104803462A/en
Pending legal-status Critical Current

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Abstract

The invention provides a technological method for advanced sewage treatment. The technological method is characterized by comprising steps as follows: (1) sewage is led into a mixer, a proper amount of a coagulant is added to the mixer to be stirred, and smaller alum floccule is formed; (2) a mixed liquid is led into a flocculation mixer, a proper amount of a flocculant is added to be stirred, floccule is formed, and the alum floccule becomes heavier; (3) a flocculated liquid is led into a concentration sludge scraper for precipitation, heavier alum floccule precipitates and is discharged together with sludge, lighter alum floccule are adsorbed on an inclined plate in the sludge scraper, clear water in a precipitation tank is collected by the aid of a water collection tank, and then the clear water is obtained. The technological method can be conveniently implemented in cooperation with a device in the high-density precipitation tank, the reaction time is short, and the clear water rate is high.

Description

A kind of processing method of deeply treating wastewater
Technical field:
The present invention relates to a kind of processing method of deeply treating wastewater, belong to field of environmental engineering.
Technical background
Along with socioeconomic high speed development, living standards of the people improve constantly, and town and country water consumption increases gradually, and pollute more and more serious.But available soil, town and country is fewer and feweri, the sewage drainage standard of country's formulation is simultaneously also more and more stricter.Utilize contact flocculation principle to remove the settling pond of suspended substance in water, before a century, just started application in the world, but long reaction time, clear water rate are out low.
Summary of the invention
In order to solve the problems of the prior art, technical solution of the present invention is: a kind of processing method of deeply treating wastewater, is characterized in that: the step of this processing method is as follows:
(1) sewage is introduced in mixing and blending machine, in mixing and blending machine, add appropriate coagulating agent, then stir, form less alumen ustum;
(2) mixed liquid is introduced in flocculation stirring machine, add appropriate flocculation agent and stir, form flocs unit, make alumen ustum become heavy;
(3) precipitate in the liquid introducing concentrated mud scraper after flocculation, precipitated by heavy alumen ustum, together get rid of with mud, lighter alumen ustum is adsorbed on the swash plate in mud scraper, clear water in settling tank is collected by water leg, obtains the water clarified afterwards.
Described coagulating agent is inorganic salts, preferably aluminium salt or molysite.
Described flocculation agent is polyacrylamide copolymer.
Processing method of the present invention can coordinate the device in a kind of potassium permanganate composites to operate, and the method is easy to operate, and the reaction times is few, and clear water rate is high.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described.
Embodiment 1
(1) sewage is introduced in mixing and blending machine, in mixing and blending machine, add appropriate aluminium salt, then stir, form less alumen ustum;
(2) mixed liquid is introduced in flocculation stirring machine, add appropriate polyacrylamide copolymer and stir, form flocs unit, make alumen ustum become heavy;
(3) precipitate in the liquid introducing concentrated mud scraper after flocculation, heavy alumen ustum is precipitated, together get rid of with mud, lighter alumen ustum is adsorbed on the swash plate in mud scraper, clear water in settling tank is collected by water leg, afterwards obtain the water clarified, the transparency of clear water reaches 97%.

Claims (3)

1. a processing method for deeply treating wastewater, is characterized in that: the step of this processing method is as follows:
(1) sewage is introduced in mixing and blending machine, in mixing and blending machine, add appropriate coagulating agent, then stir, form less alumen ustum;
(2) mixed liquid is introduced in flocculation stirring machine, add appropriate flocculation agent and stir, form flocs unit, make alumen ustum become heavy;
(3) precipitate in the liquid introducing concentrated mud scraper after flocculation, precipitated by heavy alumen ustum, together get rid of with mud, lighter alumen ustum is adsorbed on the swash plate in mud scraper, clear water in settling tank is collected by water leg, obtains the water clarified afterwards.
2. the processing method of a kind of deeply treating wastewater according to claim 1, is characterized in that: described coagulating agent is inorganic salts, preferably aluminium salt or molysite.
3. the processing method of a kind of deeply treating wastewater according to claim 1, is characterized in that: described flocculation agent is polyacrylamide copolymer.
CN201510173056.1A 2015-04-14 2015-04-14 Technological method for advanced sewage treatment Pending CN104803462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510173056.1A CN104803462A (en) 2015-04-14 2015-04-14 Technological method for advanced sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510173056.1A CN104803462A (en) 2015-04-14 2015-04-14 Technological method for advanced sewage treatment

Publications (1)

Publication Number Publication Date
CN104803462A true CN104803462A (en) 2015-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510173056.1A Pending CN104803462A (en) 2015-04-14 2015-04-14 Technological method for advanced sewage treatment

Country Status (1)

Country Link
CN (1) CN104803462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108147615A (en) * 2017-12-27 2018-06-12 天津膜天膜科技股份有限公司 It is a kind of to be directed to the Treated sewage reusing of chemical fibre viscose waste water and qualified discharge technique
CN108298731A (en) * 2018-03-22 2018-07-20 沈阳建筑大学 A kind of deeply removing arsenic system and device and its dearsenicating method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993169A (en) * 2009-08-18 2011-03-30 宝山钢铁股份有限公司 Treatment method of sintering flue gas desulphurization wastewater
CN102040297A (en) * 2010-09-30 2011-05-04 甘肃赫原生物制品有限公司 Method for decolorizing and recycling waste water from xylose production
CN102139972A (en) * 2011-02-15 2011-08-03 北京新源国能科技有限公司 Sewage treatment method and device
CN102583836A (en) * 2012-03-15 2012-07-18 南京银茂铅锌矿业有限公司 Method for treating copper/lead/zinc ore mining sewage
CN102659227A (en) * 2012-05-03 2012-09-12 绍兴市制水有限公司曹娥江分公司 Middle-set type high density sediment water purification tank and purification technology thereof
JP2015044149A (en) * 2013-08-28 2015-03-12 株式会社日立製作所 Flocculation treatment method, flocculation treatment device and water treatment apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993169A (en) * 2009-08-18 2011-03-30 宝山钢铁股份有限公司 Treatment method of sintering flue gas desulphurization wastewater
CN102040297A (en) * 2010-09-30 2011-05-04 甘肃赫原生物制品有限公司 Method for decolorizing and recycling waste water from xylose production
CN102139972A (en) * 2011-02-15 2011-08-03 北京新源国能科技有限公司 Sewage treatment method and device
CN102583836A (en) * 2012-03-15 2012-07-18 南京银茂铅锌矿业有限公司 Method for treating copper/lead/zinc ore mining sewage
CN102659227A (en) * 2012-05-03 2012-09-12 绍兴市制水有限公司曹娥江分公司 Middle-set type high density sediment water purification tank and purification technology thereof
JP2015044149A (en) * 2013-08-28 2015-03-12 株式会社日立製作所 Flocculation treatment method, flocculation treatment device and water treatment apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108147615A (en) * 2017-12-27 2018-06-12 天津膜天膜科技股份有限公司 It is a kind of to be directed to the Treated sewage reusing of chemical fibre viscose waste water and qualified discharge technique
CN108298731A (en) * 2018-03-22 2018-07-20 沈阳建筑大学 A kind of deeply removing arsenic system and device and its dearsenicating method
CN108298731B (en) * 2018-03-22 2021-10-29 沈阳建筑大学 Deep arsenic removal method

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Application publication date: 20150729

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