CN102020330A - Shallow air floating sewage treatment method - Google Patents
Shallow air floating sewage treatment method Download PDFInfo
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- CN102020330A CN102020330A CN 201010615408 CN201010615408A CN102020330A CN 102020330 A CN102020330 A CN 102020330A CN 201010615408 CN201010615408 CN 201010615408 CN 201010615408 A CN201010615408 A CN 201010615408A CN 102020330 A CN102020330 A CN 102020330A
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- sewage
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- scum
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Abstract
The invention discloses a shallow air floating sewage treatment method, comprising the steps that: A: sewage flows to a collecting well from a secondary settling pond naturally; B: the sewage is lifted to an air flowing tank via a sewage lifting pump; C: sufficient mixing with the lifted sewage is realized through a mixing pipe at the bottom of the air flowing tank and dissolved-air water generated by a dissolved-air system is fed in; D; the sewage passes through a water distributing system and a stepless speed regulating device; E: scum is removed away by a spiral mud throwing spoon so that the scum flows to a sludge bucket naturally and then flows naturally to a scum pool under the action of gravity; and F: clear water flows naturally to a discharging tank through a clear water extraction groove pipe below a rotary tub in order to result in standard-reaching discharge. According to the method, the air is dissolved in water to a maximal extent under particular pressure to obtain the saturated state as much as possible, the air is then released from the formed pressure dissolved-air water by means of decompression, a large number of micro bubbles are generated and come into sufficient contact with suspending flocculating constituents in the water, so that the suspending flocculating constituents in the water are adhered to the micro bubbles and float to surface along with the bubbles, therefore, scum is formed and removed away to purify water.
Description
Technical field
The present invention relates to environmental technology field, particularly relate to the shallow air-floatation sewage water treatment method.
Background technology
The pollution of paper waste is bigger, and international and domestic all have various standards that papermaking wastewater is checked, up to standard just the permission afterwards discharged.On the other hand, energy-saving and emission-reduction also are international trends, and the product that reaches certain environmental protection standard could base oneself upon on market.For responding the call of national energy-saving and emission-reduction, reduce discharge of wastewater concentration, for the descendants creates a good days environment, necessary taking a kind ofly promptly can reach target for energy-saving and emission-reduction, reduces the sewage water treatment method of processing cost again as far as possible.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and a kind of shallow air-floatation sewage water treatment method is provided.
Purpose of the present invention realizes by following technical measures.
The shallow air-floatation sewage water treatment method, step comprises:
A: sewage flow to pump well certainly by the second pond water outlet;
B: sewage is promoted to air flotation pool through sewage pump, adds polymerize aluminum chloride at pump entrance;
C: enter the mouth of pipe at shallow air-floatation and add polyacrylamide,, and feed the dissolved air water that air dissolving system produces through air flotation pool bottom mixing tube and the sewage thorough mixing that promotes;
D: make the sewage that enters in the air flotation pool reach zero velocity in gentle floating region, cloth pool by water distribution system and stepless speed-regulating device;
E: adopt the left-falling stroke mud spoon of band spiral that the isolated scum silica frost that is positioned at the upper strata is dragged for away, make scum silica frost flow automatically to the mud bucket, under the effect of gravity, flow to the scum silica frost pond certainly;
F: the isolated clear water extracting barrel of clear water below swing bucket of lower floor that be positioned at is from flowing to the pond of releasing, qualified discharge.
Wherein, scum silica frost carries out processed through sludge pumping to sludge dewatering system.
The present invention is dissolved in water to greatest extent with air under certain pressure condition, be in state of saturation as far as possible, then the pressure gas water that forms is passed through the decompression release air, produce a large amount of trickle bubbles, fully contact with the suspension flco in the water, the suspension flco in the water is sticked on the microbubble, rise to the surface with bubble, the formation scum silica frost is also scraped off, thereby purifies water.
Embodiment
The invention will be further described with the following Examples.
The shallow air-floatation sewage water treatment method, step comprises:
A: sewage flow to pump well certainly by the second pond water outlet;
B: sewage is promoted to air flotation pool through sewage pump, adds polymerize aluminum chloride at pump entrance;
C: enter the mouth of pipe at shallow air-floatation and add polyacrylamide,, and feed the dissolved air water that air dissolving system produces through air flotation pool bottom mixing tube and the sewage thorough mixing that promotes;
D: make the sewage that enters in the air flotation pool reach zero velocity in gentle floating region, cloth pool by water distribution system and stepless speed-regulating device;
E: adopt the left-falling stroke mud spoon of band spiral that the isolated scum silica frost that is positioned at the upper strata is dragged for away, make scum silica frost flow automatically to the mud bucket, under the effect of gravity, flow to the scum silica frost pond certainly; Scum silica frost carries out processed through sludge pumping to sludge dewatering system;
F: the isolated clear water extracting barrel of clear water below swing bucket of lower floor that be positioned at is from flowing to the pond of releasing, qualified discharge.
Should be noted that at last; above embodiment only is used to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (2)
1. shallow air-floatation sewage water treatment method, it is characterized in that: step comprises:
A: sewage flow to pump well certainly by the second pond water outlet;
B: sewage is promoted to air flotation pool through sewage pump, adds polymerize aluminum chloride at pump entrance;
C: enter the mouth of pipe at shallow air-floatation and add polyacrylamide,, and feed the dissolved air water that air dissolving system produces through air flotation pool bottom mixing tube and the sewage thorough mixing that promotes;
D: make the sewage that enters in the air flotation pool reach zero velocity in gentle floating region, cloth pool by water distribution system and stepless speed-regulating device;
E: adopt the left-falling stroke mud spoon of band spiral that the isolated scum silica frost that is positioned at the upper strata is dragged for away, make scum silica frost flow automatically to the mud bucket, under the effect of gravity, flow to the scum silica frost pond certainly;
F: the isolated clear water extracting barrel of clear water below swing bucket of lower floor that be positioned at is from flowing to the pond of releasing, qualified discharge.
2. shallow air-floatation sewage water treatment method according to claim 1 is characterized in that: scum silica frost carries out processed through sludge pumping to sludge dewatering system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615408 CN102020330A (en) | 2010-12-31 | 2010-12-31 | Shallow air floating sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615408 CN102020330A (en) | 2010-12-31 | 2010-12-31 | Shallow air floating sewage treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102020330A true CN102020330A (en) | 2011-04-20 |
Family
ID=43862161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010615408 Pending CN102020330A (en) | 2010-12-31 | 2010-12-31 | Shallow air floating sewage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102020330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230058A (en) * | 2014-09-25 | 2014-12-24 | 滁州友林科技发展有限公司 | Shallow air-floatation sewage treatment device |
| CN107285527A (en) * | 2017-08-08 | 2017-10-24 | 邓州市华鑫纸业有限公司 | Paper industry paper machine white water recovery and processing system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423312A (en) * | 2007-10-31 | 2009-05-06 | 中国石油化工股份有限公司 | Acrylon production waste water treatment method |
-
2010
- 2010-12-31 CN CN 201010615408 patent/CN102020330A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423312A (en) * | 2007-10-31 | 2009-05-06 | 中国石油化工股份有限公司 | Acrylon production waste water treatment method |
Non-Patent Citations (4)
| Title |
|---|
| 《安全饮用水保障技术》 20060331 何文杰 安全饮用水保障技术 , * |
| 《工业水处理》 20100731 许燕等 多种强化混凝技术在制浆造纸废水深度处理中的应用探讨 第30卷, 第7期 2 * |
| 《水处理构筑物设计与计算》 20070531 尹世君等 水处理构筑物设计与计算 , * |
| 《污水处理组合工艺及工程实例》 20030430 金兆丰等 污水处理组合工艺及工程实例 , * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230058A (en) * | 2014-09-25 | 2014-12-24 | 滁州友林科技发展有限公司 | Shallow air-floatation sewage treatment device |
| CN107285527A (en) * | 2017-08-08 | 2017-10-24 | 邓州市华鑫纸业有限公司 | Paper industry paper machine white water recovery and processing system |
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Application publication date: 20110420 |