CN105731716A - Starch waste water treatment apparatus and method - Google Patents

Starch waste water treatment apparatus and method Download PDF

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Publication number
CN105731716A
CN105731716A CN201410731874.4A CN201410731874A CN105731716A CN 105731716 A CN105731716 A CN 105731716A CN 201410731874 A CN201410731874 A CN 201410731874A CN 105731716 A CN105731716 A CN 105731716A
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CN
China
Prior art keywords
tank
water
sedimentation tank
regulating reservoir
anaerobic reactor
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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.)
Withdrawn
Application number
CN201410731874.4A
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Chinese (zh)
Inventor
李树军
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Harbin Kingdom Environment Engineering Co ltd
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Harbin Kingdom Environment Engineering Co ltd
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Publication date
Application filed by Harbin Kingdom Environment Engineering Co ltd filed Critical Harbin Kingdom Environment Engineering Co ltd
Priority to CN201410731874.4A priority Critical patent/CN105731716A/en
Publication of CN105731716A publication Critical patent/CN105731716A/en
Withdrawn legal-status Critical Current

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Abstract

A starch waste water treatment apparatus and method. A large amount of waste water is produced in a potato starch production process, and the starch waste water has high organic content, and worsens water quality if it is not treated and directly discharged. The apparatus comprises a grid cell (1); the grid cell is connected with a regulation pool (2); the regulation pool is connected to a flotation tank (3); the flotation tank is connected to an anaerobic reactor (4); the anaerobic reactor is connected to a pre-aeration sedimentation tank (5); and the pre-aeration sedimentation tank is connected to an SBR (6). The present invention is used for starch waste water treatment.

Description

Starch wastewater treatment device and processing method thereof
Technical field:
The present invention relates to a kind of starch wastewater treatment device and processing method thereof.
Background technology:
Rhizoma Solani tuber osi produces in starch process will produce substantial amounts of waste water, these starch wastewater content of organics are high, if without processing directly discharge, Organic substance contained in its water, the dissolved oxygen in water is consumed rapidly after entering water body, causing water hypoxia to affect the existence of Fish and other aquatic animals, in waste water, float easily under anaerobic decomposes generation foul smell simultaneously, worsens water quality.Owing to China's starch producing technology is relatively backward, the utilization rate of resource is relatively low, in starch production process substantial amounts of vegetable protein do not add utilization and with produce discharge of wastewater, not only have impact on environmental health, and cause huge waste.In starch wastewater treatment process, if it is possible to reclaim vegetable protein, accomplish the recycling of waste water simultaneously, will have broad application prospects.
Summary of the invention:
It is an object of the invention to provide a kind of starch wastewater treatment device and processing method thereof.
Above-mentioned purpose is realized by following technical scheme:
A kind of starch wastewater treatment device, its composition includes: grid pond, described grid pond is connected with regulating reservoir, described regulating reservoir is connected with flotation tank, described flotation tank is connected with anaerobic reactor, described anaerobic reactor is connected with preaeration sedimentation tank, and described preaeration sedimentation tank is connected with SBR.
Described starch wastewater treatment device, described regulating reservoir, described anaerobic reactor, described preaeration sedimentation tank, described SBR are connected with sludge concentration tank, and described sludge concentration tank is connected with between sludge dewatering.
Described starch wastewater treatment device, is connected with regulating reservoir between described sludge concentration tank, described sludge dewatering.
A kind of processing method of described starch wastewater treatment device, described method step is as follows:
nullProduce waste water to retain after bulk drift through mechanical grille,Enter regulating reservoir even regulation water quality and the water yield,Regulating reservoir sets mechanical stirring device,Former water mixing homogenizing is made by mechanical agitation,Stop float precipitation,Float flows into flotation tank with water,Add flocculant poly aluminum chloride (PAC) and polyacrylamide (PAM) simultaneously,Flotation tank water outlet flows into anaerobic reactor,Owing to starch wastewater is in acidity,Follow-up anaerobic treatment process can be made to be suppressed,Under the effect of acid-producing bacteria and methanogen,Most Organic substance is decomposed into inorganic molecules material and methane,Excess sludge enters sludge concentration tank,Methane can as the energy for producing after being processed by three-way separator collection and purification、Life uses,Water outlet then flows into preaeration sedimentation tank,Remove float and the harmful gas of anaerobic effluent,Increase the dissolved oxygen in water,Certainly flowing into SBR carries out Aerobic biological process in the water outlet of pre-exposure sedimentation tank,With the Organic substance in further degradation water.The mud that the processing units such as adjustment sedimentation tank, anaerobic reactor, pre-exposure sedimentation tank, SBR produce enters sludge concentration tank and concentrates, and improves the solid content of mud, makes moisture percentage in sewage sludge lower than 95%.Entering after mud is concentrated between sludge dewatering and carry out mechanical dehydration, the mud cake outward transport of generation, sludge concentration tank supernatant and mechanism filter-pressing liquid are back to adjustment sedimentation tank and are further continued for processing.
Beneficial effects of the present invention:
Regulating reservoir of the present invention adopts the homogenizing regulating reservoir of rectangle diagonal water outlet, the feature of this regulating reservoir is that effluent trough is diagonally arranged, waste water is by behind entrance pond, the left and right sides, just flow to effluent trough through the different time, the composite waste making effluent trough flows in different time, has thus reached to be automatically adjusted the purpose of all sums.
Due to the fact that the solid suspension content of waste water is significantly high, and containing substantial amounts of albumen, so setting a flotation tank, separation and Extraction protein, increase economic efficiency, alleviate the pressure of subsequent treatment structures simultaneously.
Anaerobic reactor of the present invention adopts semi-underground type reinforced concrete structure, and in order to meet in pond anaerobic state and prevent foul smell from dissipate, top, anaerobic reactor pond employing cover plate for sealing, outlet pipe and escape pipe set water seal arrangement respectively.
Preaeration sedimentation tank of the present invention adopts rectangular sedimentation tank, reinforced concrete structure, for removing float and the harmful gas of anaerobic effluent, increases the dissolved oxygen in water, creates favourable condition for Aerobic Process for Treatment.
Accompanying drawing illustrates:
Accompanying drawing 1 is the process chart of the present invention.
Detailed description of the invention:
Embodiment 1:
A kind of starch wastewater treatment device, its composition includes: grid pond 1, described grid pond is connected with regulating reservoir 2, described regulating reservoir is connected with flotation tank 3, described flotation tank is connected with anaerobic reactor 4, described anaerobic reactor is connected with preaeration sedimentation tank 5, and described preaeration sedimentation tank is connected with SBR6.
Embodiment 2:
Starch wastewater treatment device according to embodiment 1, described regulating reservoir, described anaerobic reactor, described preaeration sedimentation tank, described SBR are connected with sludge concentration tank, and described sludge concentration tank 7 is connected with between sludge dewatering 8.
Embodiment 3:
Starch wastewater treatment device according to embodiment 1 or 2, is connected with regulating reservoir between described sludge concentration tank, described sludge dewatering.
Embodiment 4:
The processing method of the starch wastewater treatment device that one of a kind of embodiment 1-3 is described, described method step is as follows:
nullProduce waste water to retain after bulk drift through mechanical grille,Enter regulating reservoir even regulation water quality and the water yield,Regulating reservoir sets mechanical stirring device,Former water mixing homogenizing is made by mechanical agitation,Stop float precipitation,Float flows into flotation tank with water,Add flocculant poly aluminum chloride (PAC) and polyacrylamide (PAM) simultaneously,Flotation tank water outlet flows into anaerobic reactor,Owing to starch wastewater is in acidity,Follow-up anaerobic treatment process can be made to be suppressed,Under the effect of acid-producing bacteria and methanogen,Most Organic substance is decomposed into inorganic molecules material and methane,Excess sludge enters sludge concentration tank,Methane can as the energy for producing after being processed by three-way separator collection and purification、Life uses,Water outlet then flows into preaeration sedimentation tank,Remove float and the harmful gas of anaerobic effluent,Increase the dissolved oxygen in water,Certainly flowing into SBR carries out Aerobic biological process in the water outlet of pre-exposure sedimentation tank,With the Organic substance in further degradation water.The mud that the processing units such as adjustment sedimentation tank, anaerobic reactor, pre-exposure sedimentation tank, SBR produce enters sludge concentration tank and concentrates, and improves the solid content of mud, makes moisture percentage in sewage sludge lower than 95%.Entering after mud is concentrated between sludge dewatering and carry out mechanical dehydration, the mud cake outward transport of generation, sludge concentration tank supernatant and mechanism filter-pressing liquid are back to adjustment sedimentation tank and are further continued for processing.

Claims (4)

1. a starch wastewater treatment device, its composition includes: grid pond, it is characterized in that: described grid pond is connected with regulating reservoir, described regulating reservoir is connected with flotation tank, described flotation tank is connected with anaerobic reactor, described anaerobic reactor is connected with preaeration sedimentation tank, and described preaeration sedimentation tank is connected with SBR.
2. starch wastewater treatment device according to claim 1, is characterized in that: described regulating reservoir, described anaerobic reactor, described preaeration sedimentation tank, described SBR are connected with sludge concentration tank, and described sludge concentration tank is connected with between sludge dewatering.
3. starch wastewater treatment device according to claim 1 and 2, is characterized in that: be connected with regulating reservoir between described sludge concentration tank, described sludge dewatering.
4. the method utilizing starch wastewater treatment device described for one of claim 1-3 to carry out wastewater treatment, is characterized in that: described method step is as follows:
nullProduce waste water to retain after bulk drift through mechanical grille,Enter regulating reservoir even regulation water quality and the water yield,Regulating reservoir sets mechanical stirring device,Former water mixing homogenizing is made by mechanical agitation,Stop float precipitation,Float flows into flotation tank with water,Add flocculant poly aluminum chloride (PAC) and polyacrylamide (PAM) simultaneously,Flotation tank water outlet flows into anaerobic reactor,Owing to starch wastewater is in acidity,Follow-up anaerobic treatment process can be made to be suppressed,Under the effect of acid-producing bacteria and methanogen,Most Organic substance is decomposed into inorganic molecules material and methane,Excess sludge enters sludge concentration tank,Methane can as the energy for producing after being processed by three-way separator collection and purification、Life uses,Water outlet then flows into preaeration sedimentation tank,Remove float and the harmful gas of anaerobic effluent,Increase the dissolved oxygen in water,Certainly flowing into SBR carries out Aerobic biological process in the water outlet of pre-exposure sedimentation tank,With the Organic substance in further degradation water,Regulate sedimentation tank、Anaerobic reactor、Pre-exposure sedimentation tank、The mud that the processing units such as SBR produce enters sludge concentration tank and concentrates,Improve the solid content of mud,Make moisture percentage in sewage sludge lower than 95%,Enter after mud is concentrated between sludge dewatering and carry out mechanical dehydration,The mud cake outward transport produced,Sludge concentration tank supernatant and mechanism filter-pressing liquid are back to adjustment sedimentation tank and are further continued for processing.
CN201410731874.4A 2014-12-06 2014-12-06 Starch waste water treatment apparatus and method Withdrawn CN105731716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410731874.4A CN105731716A (en) 2014-12-06 2014-12-06 Starch waste water treatment apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410731874.4A CN105731716A (en) 2014-12-06 2014-12-06 Starch waste water treatment apparatus and method

Publications (1)

Publication Number Publication Date
CN105731716A true CN105731716A (en) 2016-07-06

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CN201410731874.4A Withdrawn CN105731716A (en) 2014-12-06 2014-12-06 Starch waste water treatment apparatus and method

Country Status (1)

Country Link
CN (1) CN105731716A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106315983A (en) * 2016-09-30 2017-01-11 广西罗城科潮基业科技发展有限公司 Starch alcohol wastewater treatment system and method
CN108658368A (en) * 2018-06-14 2018-10-16 海宁玖洲家具有限公司 The processing method of leather waste water
CN108911380A (en) * 2018-07-09 2018-11-30 周正培 Food Industry Wastewater treatment process and its device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106315983A (en) * 2016-09-30 2017-01-11 广西罗城科潮基业科技发展有限公司 Starch alcohol wastewater treatment system and method
CN106315983B (en) * 2016-09-30 2019-07-26 广西罗城科潮基业科技发展有限公司 A kind of starch alcohol waste water processing system and method
CN108658368A (en) * 2018-06-14 2018-10-16 海宁玖洲家具有限公司 The processing method of leather waste water
CN108911380A (en) * 2018-07-09 2018-11-30 周正培 Food Industry Wastewater treatment process and its device

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Application publication date: 20160706