CN103910468A - Treatment method of aquatic product processing waste water - Google Patents

Treatment method of aquatic product processing waste water Download PDF

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Publication number
CN103910468A
CN103910468A CN201410105667.8A CN201410105667A CN103910468A CN 103910468 A CN103910468 A CN 103910468A CN 201410105667 A CN201410105667 A CN 201410105667A CN 103910468 A CN103910468 A CN 103910468A
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CN
China
Prior art keywords
treatment
waste water
processing
water
aquatic products
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CN201410105667.8A
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Chinese (zh)
Inventor
沈建明
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苏州市阳澄湖现代农业产业园特种水产养殖有限公司
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Priority to CN201410105667.8A priority Critical patent/CN103910468A/en
Publication of CN103910468A publication Critical patent/CN103910468A/en

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Abstract

The invention discloses a treatment method of aquatic product processing waste water, which comprises the following steps: (1) grating interception, (2) oil removal and desilting, (3) mixing adsorption, (4) nitration treatment, (5) contact oxidation treatment, (6) membrane filtration and (7) ultraviolet ray sterilization and pH adjustment. The treatment method of aquatic product processing waste water of the invention is simple and convenient in operation, can not only remove solid organic matter, but also effectively remove molecular-level pollutants by nitration treatment and contact oxidation treatment, and has the advantages of large treatment amount, high treatment efficiency, and good purification effect. Aquatic product processing waste water treated by the method of the invention has indexes of COD and the like within the safety range, and is safe recycled water or dischargeable water.

Description

A kind for the treatment of process of aquatic products processing wastewater
 
Technical field
The present invention relates to field of processing of aquatic products, particularly relate to a kind for the treatment of process of aquatic products processing wastewater.
Background technology
Due to increasing of China's fishery products demand in recent years, culture fishery and attached industry thereof are promoted, as the develop rapidly of processing of aquatic products industry.In aquatic products processing wastewater, contain the solid organic matters such as a large amount of fish head, fish-skin, fin, fish tail, fish-bone and the residual flesh of fish, also contain the small molecules organic pollutants such as larger molecular organics matter and ammonia nitrogen such as a large amount of blood, protein, amino acid simultaneously, more serious to water body environment pollution.Current aquatic products processing wastewater treatment process, adopts the processing means such as grid interception, physical adsorption, filtration conventionally, can effectively remove the solid pollutant in waste water, to other Pollutant Treatment poor effect of molecular level.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind for the treatment of process of aquatic products processing wastewater, can effectively remove the various pollutents in waste water, thoroughly purifies water.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind for the treatment of process of aquatic products processing wastewater is provided, comprises the following steps:
(1) grid interception: by aquatic products processing wastewater with the flow velocity of the 30~50mL/h grid of flowing through, to tackle the solid organic matters of removing in described processing waste water;
(2) oil removing desilting: the processing waste water of processing in step (1) is flowed into vibration and remove sand in bed, vibration treatment 30~60min under the condition that is 10~20cm at Oscillation Amplitude, make the grains of sand in waste water sink to the bed bottom of removing sand, make oil stain dirt be suspended in the water surface, reach the object of oil removing desilting;
(3) mixing and absorption: go the processing waste water after sand to flow in mixing and absorption pond oil removing in step (2), using the mixture of pebbles, shell and cocoanut active charcoal as sorbent material, fine particle impurity and blood in Adsorption waste water;
(4) nitration treatment: processing waste water after treatment in step (3) is introduced and is embedded with in the nitriary of nitrobacteria, nitration treatment 6~12h;
(5) catalytic oxidation processing: using ecological carbon fiber filler as filler; with the aeration speed aeration 24h of 5~15mg/L; then quiet heavy and in described filling surface biofilm; after biofilm, the waste water after nitration treatment in step (4) is introduced with carrying out catalytic oxidation in the contact-oxidation pool of micro-pore aeration system and processed 2~5 days, making water outlet COD content is 80~100mg/L;
(6) membrane filtration: by processing waste water after treatment catalytic oxidation with the flow velocity of the 10~20mL/h ultra-filtration membrane of flowing through;
(7) ultra-violet sterilization and pH value regulate: through ultraviolet radiation for sterilizing and disinfecting, and regulate its pH value to neutrality the process water after ultrafiltration in step (6), become qualified water.
In a preferred embodiment of the present invention, the grid spacing of described grid is 1~3mm.
In a preferred embodiment of the present invention, described in the remove sand direction of vibration of vibrating bed be horizontal vibration.
In a preferred embodiment of the present invention, the blending ratio of described pebbles, shell and cocoanut active charcoal is 3:2:1.
In a preferred embodiment of the present invention, the aperture of described ultra-filtration membrane is 3~5 μ m.
The invention has the beneficial effects as follows: the treatment process of aquatic products processing wastewater of the present invention, simple to operation, not only can remove solid organic matters, and by nitration treatment and catalytic oxidation processing, can effectively remove other pollutent of molecular level, have that treatment capacity is large, processing efficiency is high, the advantages such as good purification, through the present invention's aquatic products processing wastewater after treatment, the indexs such as its COD reach safe category, are safe cycling use of water or can discharge water.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The embodiment of the present invention comprises:
A treatment process for aquatic products processing wastewater, comprises the following steps:
(1) grid interception: aquatic products processing wastewater is flowed through to grid spacing as the grid of 1~3mm, to tackle the solid organic matters of removing in described processing waste water take the flow velocity of 30~50mL/h;
(2) oil removing desilting: the processing waste water of processing in step (1) is flowed into vibration and remove sand in bed, vibration treatment 30~60min under the condition that is 10~20cm at Oscillation Amplitude, make the grains of sand in waste water sink to the bed bottom of removing sand, sand outlet by the bed that removes sand is discharged, make oil stain dirt be suspended in the water surface, remove by methods such as oil extracting machines, reach the object of oil removing desilting; The direction of vibration of the described vibrating bed that removes sand is horizontal vibration
(3) mixing and absorption: go the processing waste water after sand to flow in mixing and absorption pond oil removing in step (2), the mixture of pebbles, shell and cocoanut active charcoal using blending ratio as 3:2:1 is as sorbent material, fine particle impurity and blood in Adsorption waste water;
(4) nitration treatment: processing waste water after treatment in step (3) is introduced and is embedded with in the nitriary of nitrobacteria, nitration treatment 6~12h, pass through nitration treatment, larger molecular organics is decomposed into small organic molecule, be easy degradation material by the Substance Transformation of difficult degradation, and effectively remove the suspended solids in water;
(5) catalytic oxidation processing: using ecological carbon fiber filler as filler; with the aeration speed aeration 24h of 5~15mg/L; control dissolved oxygen amount is 2~4ml/L; quiet heavy; and in described filling surface biofilm; after biofilm, the waste water after nitration treatment in step (4) is introduced with carrying out catalytic oxidation in the contact-oxidation pool of micro-pore aeration system and processed 2~5 days, making water outlet COD content is 80~100mg/L;
(6) membrane filtration: processing waste water after treatment catalytic oxidation is reached to the effect of deep layer purification and impurity removal take the flow velocity of the 10~20mL/h aperture of flowing through as the ultra-filtration membrane of 3~5 μ m carries out uf processing;
(7) ultra-violet sterilization and pH value regulate: through ultraviolet radiation for sterilizing and disinfecting, and regulate its pH value to neutral process water after ultrafiltration in step (6), become qualified water, supply to recycle or safety dumping in natural water.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (5)

1. a treatment process for aquatic products processing wastewater, is characterized in that, comprises the following steps:
(1) grid interception: by aquatic products processing wastewater with the flow velocity of the 30~50mL/h grid of flowing through, to tackle the solid organic matters of removing in described processing waste water;
(2) oil removing desilting: the processing waste water of processing in step (1) is flowed into vibration and remove sand in bed, vibration treatment 30~60min under the condition that is 10~20cm at Oscillation Amplitude, make the grains of sand in waste water sink to the bed bottom of removing sand, make oil stain dirt be suspended in the water surface, reach the object of oil removing desilting;
(3) mixing and absorption: go the processing waste water after sand to flow in mixing and absorption pond oil removing in step (2), using the mixture of pebbles, shell and cocoanut active charcoal as sorbent material, fine particle impurity and blood in Adsorption waste water;
(4) nitration treatment: processing waste water after treatment in step (3) is introduced and is embedded with in the nitriary of nitrobacteria, nitration treatment 6~12h;
(5) catalytic oxidation processing: using ecological carbon fiber filler as filler; with the aeration speed aeration 24h of 5~15mg/L; then quiet heavy and in described filling surface biofilm; after biofilm, the waste water after nitration treatment in step (4) is introduced with carrying out catalytic oxidation in the contact-oxidation pool of micro-pore aeration system and processed 2~5 days, making water outlet COD content is 80~100mg/L;
(6) membrane filtration: by processing waste water after treatment catalytic oxidation with the flow velocity of the 10~20mL/h ultra-filtration membrane of flowing through;
(7) ultra-violet sterilization and pH value regulate: through ultraviolet radiation for sterilizing and disinfecting, and regulate its pH value to neutrality the process water after ultrafiltration in step (6), become qualified water.
2. the treatment process of aquatic products processing wastewater according to claim 1, is characterized in that, the grid spacing of described grid is 1~3mm.
3. the treatment process of aquatic products processing wastewater according to claim 1, is characterized in that, described in the remove sand direction of vibration of vibrating bed be horizontal vibration.
4. the treatment process of aquatic products processing wastewater according to claim 1, is characterized in that, the blending ratio of described pebbles, shell and cocoanut active charcoal is 3:2:1.
5. the treatment process of aquatic products processing wastewater according to claim 1, is characterized in that, the aperture of described ultra-filtration membrane is 3~5 μ m.
CN201410105667.8A 2014-03-21 2014-03-21 Treatment method of aquatic product processing waste water CN103910468A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892339A (en) * 2017-11-23 2018-04-10 浙江海洋大学 A kind of aquatic products sewage-treating agent prepares and its application

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20060131230A1 (en) * 2004-12-22 2006-06-22 Industrial Technology Research Institute Biological membrane filtration system for water treatment and a water treatment process
CN101948207A (en) * 2010-09-14 2011-01-19 浙江晶泉水处理设备有限公司 Mobile wastewater treating device
CN203319807U (en) * 2013-06-26 2013-12-04 徐雨顺 Water treatment system for fish and shrimp farming

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060131230A1 (en) * 2004-12-22 2006-06-22 Industrial Technology Research Institute Biological membrane filtration system for water treatment and a water treatment process
CN101948207A (en) * 2010-09-14 2011-01-19 浙江晶泉水处理设备有限公司 Mobile wastewater treating device
CN203319807U (en) * 2013-06-26 2013-12-04 徐雨顺 Water treatment system for fish and shrimp farming

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
袁波等: "水解-二级接触氧化法处理水产品加工废水", 《水处理技术》, vol. 32, no. 7, 31 July 2007 (2007-07-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892339A (en) * 2017-11-23 2018-04-10 浙江海洋大学 A kind of aquatic products sewage-treating agent prepares and its application
CN107892339B (en) * 2017-11-23 2021-03-16 浙江海洋大学 Preparation and application of aquatic product sewage treatment agent

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