CN105948339A - Treatment process of aquaculture waste water - Google Patents
Treatment process of aquaculture waste water Download PDFInfo
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- CN105948339A CN105948339A CN201610313620.XA CN201610313620A CN105948339A CN 105948339 A CN105948339 A CN 105948339A CN 201610313620 A CN201610313620 A CN 201610313620A CN 105948339 A CN105948339 A CN 105948339A
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- waste water
- montmorillonite
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- aquiculture
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- 238000000034 method Methods 0.000 title claims abstract description 107
- 239000002351 wastewater Substances 0.000 title claims abstract description 102
- 238000009360 aquaculture Methods 0.000 title claims abstract description 46
- 238000011282 treatment Methods 0.000 title claims abstract description 16
- 244000144974 aquaculture Species 0.000 title abstract description 8
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical class O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 77
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 28
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000006185 dispersion Substances 0.000 claims description 21
- 230000002687 intercalation Effects 0.000 claims description 21
- 238000009830 intercalation Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 21
- YVZATJAPAZIWIL-UHFFFAOYSA-M [Zn]O Chemical compound [Zn]O YVZATJAPAZIWIL-UHFFFAOYSA-M 0.000 claims description 20
- 238000000746 purification Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 14
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000002910 solid waste Substances 0.000 claims description 10
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 7
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 7
- 235000010344 sodium nitrate Nutrition 0.000 claims description 7
- 239000004317 sodium nitrate Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000011592 zinc chloride Substances 0.000 claims description 7
- 235000005074 zinc chloride Nutrition 0.000 claims description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 4
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000004042 decolorization Methods 0.000 abstract 3
- 238000005273 aeration Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 44
- 239000003344 environmental pollutant Substances 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- -1 Hydroxyl zinc ion Chemical compound 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000371997 Eriocheir sinensis Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a treatment process of aquaculture waste water. The treatment process comprises steps including sedimentation, aeration, treatment with modified montmorillonite, filtering, smell and color removal, secondary sedimentation and the like. The treatment process of the aquaculture waste water is simple and has a good effect, the treated waste water can reach a discharge standard, preparation processes of modified montmorillonite and smell and color removal agents are simple and easy to implement, and the modified montmorillonite and the smell and color removal agents can be simply treated and repeatedly used after the waste water is treated.
Description
Technical field
The present invention relates to technical field of waste water processing, especially relate to the process technique of a kind of aquiculture waste water.
Background technology
Intensive aquaculture at home and abroad develops rapidly in recent years, and China is the swiftest and the most violent, and its cultured output has accounted for about the 2/3 of world's cultured output.The current culture fishery of China is in a Historical Transformation phase changed from tradition high yield stocking model to large-scale cultivation, quality and benifit; but draw greatly the big mode arranged owing to China's aquaculture still uses; consume water resource the most greatly; and the remaining pollutant formed with fish, shrimp, Eriocheir sinensis class Excreta of feedstuff thrown in aquaculture process cause pollution to water body, sediment of pond etc.; make breeding water body eutrophication increasingly, surrounding body environment and ecological environment are caused increasing harm.The culture zone along the lake of some unhurried current shallow macrophytic lakes, under the common effect of sanitary sewage and fishery self-pollution, pollutant the miscellaneous pathogenic microorganism grown has caused serious infringement to aquaculture.If breeding wastewater not carried out Ecological Disposal and recycling, then with consumption of natural resource (water resource), pollute the environment culture fishery as cost, be difficult to keep a foothold under conservation culture from now on produces the impact of tide.Compared with city domestic sewage and industrial wastewater, aquaculture water is polluted the feature of its uniqueness, and i.e. potential pollutant content is low, a displacement there are differences with common Lu Yuan sewage greatly, and intractability is greatly increased.
In prior art, the method that aquiculture waste water processes mainly has the methods such as physical treatment process, method of chemical treatment, physicochemical treatment method.Although these processing methods are all the processing methods of ripe aquiculture waste water, but various method has some limitations, it is difficult to thoroughly remove the pollutant in aquiculture waste water；Such as physical treatment process, Filtration therein can only remove the remaining feedstuff in breeding wastewater and Excreta, the heavy metal that wherein may contain and small particles of pollution thing are then difficult to remove, foam separation rule can only remove the surfactant in breeding wastewater, and the pollutant for other are then difficult to remove；Electrochemical process in method of chemical treatment, although can remove the harmful substances such as ammonia therein and nitrite, however it is necessary that the substantial amounts of electric energy of consumption, and cost is relatively big, and ozone processes rule needs to be passed through substantial amounts of ozone, also can increase the cost of process.It is thus desirable to the process technique of the aquiculture waste water of a kind of with low cost, high treating effect.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of high treating effect, it is possible to remove remaining feedstuff, Aquatic product Excreta and the pollutant of high COD in waste water, moreover it is possible to remove the process technique of the wastewater from aquatic product process of waste water abnormal flavour and decolouring.
For achieving the above object, the technical solution used in the present invention is as follows:
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 3～6 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 40～50kg/m3, processes 20～30 hours to aerating wastewater simultaneously；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 5～7 hours, wherein taste removal decolorising agent addition is 20～30kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Often containing pollutant such as the solid waste after a large amount of aquatic products processings, ammonia nitrogens in aquiculture waste water, such as remaining feedstuff, fish and shrimp Excreta etc., containing some coloring materials, making aquiculture waste water often present deeper color, often aquiculture waste water is possibly together with dense bad smell；Therefore to process aquiculture waste water to comply with discharge standard, it is necessary to remove solid waste therein, remove color therein and dense abnormal flavour, also to reduce the indexs such as its COD simultaneously.Step one is the large volume of solid waste in order to remove in waste water, step 2 is to be easy to be bubbled through the water column by the pollutant such as the oils and fats in waste water remove, step 3 is to utilize garbage tiny in Aqueous Solutions By Adsorption On Modified Montmorillonite and some heavy metal ion etc. existed, the most modified montmorillonite can be with loaded optic catalyst, catalytic decomposition organic pollution therein reduces the COD etc. of waste water, and step 5 is to remove the color of waste water and dense bad smell.
As preferably, in step 3, when Modification of Montmorillonite processes, use the aquiculture waste water in high voltage mercury lamp or xenon lamp treatment with irradiation.
The modified montmorillonite used photocatalyst that is loaded with, uses high voltage mercury lamp or xenon lamp to irradiate and can improve light-catalysed efficiency.
As preferably, taste removal decolorising agent is mixed by kieselguhr and activated carbon in mass ratio 1～1.5:1, and adds kieselguhr and the surfactant of activated carbon gross mass 1/3～3/5, then ball milling 40～prepare for 80 minutes under 2000rpm rotating speed.
Kieselguhr and activated carbon are the porous adsorbents with good adsorbent performance, but it has the feature of each absorption, for different pollutant there is different characterization of adsorptions, therefore with both adsorbents with the use of, its dispersibility in waste water can be increased after surfactant-modified.
As preferably, surfactant is the one in dodecylbenzene sodium sulfonate, sodium lauryl sulphate or sodium laurylsulfate.
As preferably, before the preparation process of taste removal decolorising agent, kieselguhr and activated carbon are soaking 15～20 minutes respectively in the hydrochloric acid that pH is 5～6.5, are dried after finally cleaning 3～5 times with deionized water.
Kieselguhr and activated carbon, before preparation, are first processed in acid solution by taste removal decolorising agent, can remove the Organic substance being attached to therebetween and some affect the impurity of absorption property.
As preferably, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:2～5 preparation montmorillonite dispersion liquid；
B) the montmorillonite dispersion liquid of preparation adds in step a hydroxyl zinc ion solution, ultrasonic disperse 10～after 30 minutes, solution is dried, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:3～7 with the mass ratio of hydroxyl zinc ion solution；
C) intercalation modifying montmorillonite roasting 2～3 hours at 500～750 DEG C step b prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 15～20 minutes, and prepare modified montmorillonite used after drying.
Montmorillonite is the aluminium silicate mineral of a kind of stratiform, its interlayer has abundant exchangeable cations, and the interlayer structure having due to it, there is certain absorption property, but owing to its interlamellar spacing is at about 1nm, existence due to its interlayer exchangeable ion, it is possible to the heavy metal ion of absorption is limited, needs to be modified processing to it；Hydroxyl zinc ion is a kind of ion centered by zinc ion, the large-scale polymerization plasma group that numerous hydroxyls are electrically formed around zinc ion due to ion band, its can be the most stable existence, owing to its outer layer has substantial amounts of hydroxyl to surround, therefore it has abnormal excellent ion-exchange performance, and the size of this kind of polymerization plasma group is suitable, close with the interlamellar spacing of montmorillonite, the interlayer of montmorillonite can be entered after treatment, and the montmorillonite of stratiform is strutted certain distance, increase the interlamellar spacing of montmorillonite, be montmorillonite absorption property become more excellent, can have more excellent absorption property, also the adsorbate kind of its absorption can be expanded；It addition, hydroxyl zinc ion is between montmorillonite layer, fired after can form the zinc oxide with photocatalysis performance, these zinc oxide i.e. can play pillared effect between montmorillonite layer, increase the interlamellar spacing of montmorillonite, it is also possible to play its photocatalysis performance, the debirs of the high COD in Decomposition Wastewater.
As preferably, Montmorillonite Purification in step a is processed as montmorillonite being first ground to 200 mesh to 400 mesh, then soak in 75wt% ethanol solution 20～30 minutes, soak in the hydrochloric acid that pH is 4.5～5 10～15 minutes afterwards, be dried after finally cleaning 1～3 time with deionized water.
Montmorillonite Purification processing procedure, successively soaks in ethanol and hydrochloric acid, can remove Organic substance and the impurity of montmorillonite surface attachment, particularly HCl treatment, the inorganic impurity being filled in montmorillonite duct and interlayer can be removed, be that it has more adsorption space, there is higher absorbability.
As preferably, hydroxy Al solion is prepared by following methods: 0.005～0.05mol/L zinc chloride joins the sodium hydroxide solution that pH is 7.5～8.5 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.4～2:1.
As preferably, hydroxyl zinc ion solution is in preparation process, and liquor zinci chloridi at the uniform velocity joined in sodium hydroxide solution in 18～24 minutes, and controls that to add fashionable temperature be 70～90 DEG C.
Although hydroxyl zinc ion be a kind of can with the polymerizing cationically group of stable existence, but if in preparation process add speed cross the slow or too fast formation that all can affect hydroxyl zinc ion, also can affect the stability of formed hydroxyl zinc ion.
Therefore, the method have the advantages that
(1) Fishery Manufacturing Wastewater Treatment Process in the present invention is simple, and excellent effect, waste water after treatment can reach discharge standard；
(2) the modified montmorillonite used and taste removal decolorising agent processing technology employed in the present invention is simple；
(3) the modified montmorillonite used and taste removal decolorising agent employed in the present invention is after having processed waste water, can reuse through simple process.
Detailed description of the invention
Below in conjunction with specific implementation method, technical scheme is further described.
Embodiment 1
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 5 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 45kg/m3, process 25 hours to aerating wastewater simultaneously；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 6 hours, wherein taste removal decolorising agent addition is 25kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Wherein, taste removal decolorising agent is mixed by kieselguhr and activated carbon 1.3:1 in mass ratio, and adds kieselguhr and the sodium lauryl sulphate of activated carbon gross mass 1/2, and then under 2000rpm rotating speed, ball milling prepares for 60 minutes.
Wherein, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:4 prepare montmorillonite dispersion liquid；
B) adding hydroxyl zinc ion solution in step a in the montmorillonite dispersion liquid of preparation, solution, after 20 minutes, is dried by ultrasonic disperse, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:5 with the mass ratio of hydroxyl zinc ion solution；Hydroxy Al solion is prepared by following methods: 0.03mol/L zinc chloride joins the sodium hydroxide solution that pH is 8 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.7:1；
C) intercalation modifying montmorillonite roasting 2.5 hours at 630 DEG C that step b is prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 18 minutes, and prepare modified montmorillonite used after drying.
Embodiment 2
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 5 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 45kg/m3, process 25 hours to aerating wastewater simultaneously；Aquiculture waste water in using high voltage mercury lamp radiation to process when Modification of Montmorillonite processes；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 6 hours, wherein taste removal decolorising agent addition is 25kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Wherein, taste removal decolorising agent is mixed by kieselguhr and activated carbon 1.3:1 in mass ratio, and adds kieselguhr and the dodecylbenzene sodium sulfonate of activated carbon gross mass 1/2, and then under 2000rpm rotating speed, ball milling prepares for 60 minutes.
Wherein, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:4 prepare montmorillonite dispersion liquid；
B) adding hydroxyl zinc ion solution in step a in the montmorillonite dispersion liquid of preparation, solution, after 20 minutes, is dried by ultrasonic disperse, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:5 with the mass ratio of hydroxyl zinc ion solution；Hydroxy Al solion is prepared by following methods: 0.03mol/L zinc chloride joins the sodium hydroxide solution that pH is 8 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.7:1；
C) intercalation modifying montmorillonite roasting 2.5 hours at 630 DEG C that step b is prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 18 minutes, and prepare modified montmorillonite used after drying.
Embodiment 3
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 3 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 40kg/m3, process 20 hours to aerating wastewater simultaneously；Aquiculture waste water in using high voltage mercury lamp radiation to process when Modification of Montmorillonite processes；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 5 hours, wherein taste removal decolorising agent addition is 20kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Wherein, taste removal decolorising agent is mixed by kieselguhr and activated carbon 1:1 in mass ratio, and adds kieselguhr and the dodecylbenzene sodium sulfonate of activated carbon gross mass 1/3, and then under 2000rpm rotating speed, ball milling prepares for 40 minutes；Before the preparation process of taste removal decolorising agent, kieselguhr and activated carbon are soaking 15 minutes respectively in the hydrochloric acid that pH is 5, are dried after finally cleaning 3 times with deionized water.
Wherein, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:2 prepare montmorillonite dispersion liquid；Montmorillonite Purification is processed as first being ground to by montmorillonite 200 mesh, then soaks in 75wt% ethanol solution 20 minutes, soaks 10 minutes afterwards, be dried after finally cleaning 1 time with deionized water in the hydrochloric acid that pH is 4.5；
B) the montmorillonite dispersion liquid of preparation adds in step a hydroxyl zinc ion solution, ultrasonic disperse 10～after 30 minutes, solution is dried, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:3 with the mass ratio of hydroxyl zinc ion solution；Hydroxy Al solion is prepared by following methods: 0.005mol/L zinc chloride joins the sodium hydroxide solution that pH is 7.5 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.4:1；Hydroxyl zinc ion solution is in preparation process, and liquor zinci chloridi at the uniform velocity joined in sodium hydroxide solution in 18 minutes, and controls that to add fashionable temperature be 70 DEG C；
C) intercalation modifying montmorillonite roasting 2 hours at 500 DEG C that step b is prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 15 minutes, and prepare modified montmorillonite used after drying.
Embodiment 4
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 5 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 45kg/m3, process 25 hours to aerating wastewater simultaneously；The aquiculture waste water in xenon lamp treatment with irradiation is used when Modification of Montmorillonite processes；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 6 hours, wherein taste removal decolorising agent addition is 25kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Wherein, taste removal decolorising agent is mixed by kieselguhr and activated carbon 1.3:1 in mass ratio, and adds kieselguhr and the sodium lauryl sulphate of activated carbon gross mass 1/2, and then under 2000rpm rotating speed, ball milling prepares for 60 minutes；Before the preparation process of taste removal decolorising agent, kieselguhr and activated carbon are soaking 18 minutes respectively in the hydrochloric acid that pH is 6, are dried after finally cleaning 4 times with deionized water.
Wherein, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:4 prepare montmorillonite dispersion liquid；Montmorillonite Purification is processed as first being ground to by montmorillonite 300 mesh, then soaks in 75wt% ethanol solution 25 minutes, soaks 13 minutes afterwards, be dried after finally cleaning 2 times with deionized water in the hydrochloric acid that pH is 4.8；
B) adding hydroxyl zinc ion solution in step a in the montmorillonite dispersion liquid of preparation, solution, after 20 minutes, is dried by ultrasonic disperse, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:5 with the mass ratio of hydroxyl zinc ion solution；Hydroxy Al solion is prepared by following methods: 0.03mol/L zinc chloride joins the sodium hydroxide solution that pH is 8 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.7:1；Hydroxyl zinc ion solution is in preparation process, and liquor zinci chloridi at the uniform velocity joined in sodium hydroxide solution in 21 minutes, and controls that to add fashionable temperature be 80 DEG C；
C) intercalation modifying montmorillonite roasting 2.5 hours at 630 DEG C that step b is prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 18 minutes, and prepare modified montmorillonite used after drying.
Embodiment 5
The process technique of a kind of aquiculture waste water, comprises the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 6 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 50kg/m3, process 30 hours to aerating wastewater simultaneously；Aquiculture waste water in using high voltage mercury lamp radiation to process when Modification of Montmorillonite processes；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 7 hours, wherein taste removal decolorising agent addition is 30kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
Wherein, taste removal decolorising agent is mixed by kieselguhr and activated carbon 1.5:1 in mass ratio, and adds kieselguhr and the sodium laurylsulfate of activated carbon gross mass 3/5, and then under 2000rpm rotating speed, ball milling prepares for 80 minutes；Before the preparation process of taste removal decolorising agent, kieselguhr and activated carbon are soaking 20 minutes respectively in the hydrochloric acid that pH is 6.5, are dried after finally cleaning 5 times with deionized water.
Wherein, modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:5 prepare montmorillonite dispersion liquid；Montmorillonite Purification is processed as first being ground to by montmorillonite 400 mesh, then soaks in 75wt% ethanol solution 30 minutes, soaks 15 minutes afterwards, be dried after finally cleaning 3 times with deionized water in the hydrochloric acid that pH is 5；
B) adding hydroxyl zinc ion solution in step a in the montmorillonite dispersion liquid of preparation, solution, after 30 minutes, is dried by ultrasonic disperse, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:7 with the mass ratio of hydroxyl zinc ion solution；Hydroxy Al solion is prepared by following methods: 0.05mol/L zinc chloride joins the sodium hydroxide solution that pH is 8.5 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 2:1；Hydroxyl zinc ion solution is in preparation process, and liquor zinci chloridi at the uniform velocity joined in sodium hydroxide solution in 24 minutes, and controls that to add fashionable temperature be 90 DEG C；
C) intercalation modifying montmorillonite roasting 3 hours at 750 DEG C that step b is prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 20 minutes, and prepare modified montmorillonite used after drying.
Techniques below index can be realized by the present invention:
1. ammonia-nitrogen content≤35mg/L, total phosphorus content≤10mg/L in the waste water after processing；
2. BOD5≤20mg/L, COD≤60mg/L in the waste water after processing.
Claims (9)
1. the process technique of an aquiculture waste water, it is characterised in that comprise the following steps:
One, solid waste in aquiculture waste water is removed by the sedimentation method；
Two, the Aquatic product aerating wastewater processed through step one is processed 3～6 hours；
Three, in the waste water after processing through step 2, adding modified montmorillonite used, modified montmorillonite used addition is 40～50kg/m3, process 20～30 hours to aerating wastewater simultaneously；
Four, solid inclusion it is filtered to remove in step 3 processed waste water；
Five, to processing in the waste water after removing solid inclusion through step 4, taste removal decolorising agent is added, and stir process 5～7 hours, wherein taste removal decolorising agent addition is 20～30kg/m3；
Six, the solid inclusion being filtered to remove in step 5 processed waste water is precipitated.
The process technique of a kind of aquiculture waste water the most according to claim 1, it is characterised in that: in described step 3, when Modification of Montmorillonite processes, use the aquiculture waste water in high voltage mercury lamp or xenon lamp treatment with irradiation.
The process technique of a kind of aquiculture waste water the most according to claim 1, it is characterized in that: described taste removal decolorising agent is mixed by kieselguhr and activated carbon in mass ratio 1～1.5:1, and add kieselguhr and the surfactant of activated carbon gross mass 1/3～3/5, then ball milling 40～prepare for 80 minutes under 2000rpm rotating speed.
The process technique of a kind of aquiculture waste water the most according to claim 3, it is characterised in that: described surfactant is the one in dodecylbenzene sodium sulfonate, sodium lauryl sulphate or sodium laurylsulfate.
5. according to the process technique of a kind of aquiculture waste water described in claim 1 or 3, it is characterized in that: before the preparation process of described taste removal decolorising agent, kieselguhr and activated carbon are soaking 15～20 minutes respectively in the hydrochloric acid that pH is 5～6.5, are dried after finally cleaning 3～5 times with deionized water.
The process technique of a kind of aquiculture waste water the most according to claim 1, it is characterised in that described modified montmorillonite used prepared by following steps:
A) Montmorillonite Purification, after purification by solid-liquid mass ratio be 1:2～5 preparation montmorillonite dispersion liquid；
B) the montmorillonite dispersion liquid of preparation adds in step a hydroxyl zinc ion solution, ultrasonic disperse 10～after 30 minutes, solution is dried, prepares intercalation modifying montmorillonite；Wherein montmorillonite dispersion liquid is 1:3～7 with the mass ratio of hydroxyl zinc ion solution；
C) intercalation modifying montmorillonite roasting 2～3 hours at 500～750 DEG C step b prepared；
D) the intercalation modifying montmorillonite after the roasting of step c is joined in the sodium nitrate solution of 6mol/L, supersound process 15～20 minutes, and prepare modified montmorillonite used after drying.
The process technique of a kind of aquiculture waste water the most according to claim 6, it is characterized in that: the Montmorillonite Purification in described step a is processed as montmorillonite being first ground to 200 mesh to 400 mesh, then soak 20～30 minutes in 75wt% ethanol solution, soak in the hydrochloric acid that pH is 4.5～5 10～15 minutes afterwards, be dried after finally cleaning 1～3 time with deionized water.
The process technique of a kind of aquiculture waste water the most according to claim 6, it is characterized in that described hydroxy Al solion is prepared by following methods: 0.005～0.05mol/L zinc chloride joins the sodium hydroxide solution that pH is 7.5～8.5 and prepares, and the mol ratio wherein controlling hydroxide ion and zinc ion is 1.4～2:1.
The process technique of a kind of aquiculture waste water the most according to claim 8, it is characterized in that: described hydroxyl zinc ion solution is in preparation process, liquor zinci chloridi at the uniform velocity joined in sodium hydroxide solution in 18～24 minutes, and controlled that to add fashionable temperature be 70～90 DEG C.
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| CN110367193A (en) * | 2019-08-13 | 2019-10-25 | 北京桃古图生物科技有限公司 | It is a kind of for improve cultivation colony house environment improver and its preparation method and application |
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