CN106139691B - A kind of online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion - Google Patents
A kind of online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion Download PDFInfo
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- CN106139691B CN106139691B CN201610565784.1A CN201610565784A CN106139691B CN 106139691 B CN106139691 B CN 106139691B CN 201610565784 A CN201610565784 A CN 201610565784A CN 106139691 B CN106139691 B CN 106139691B
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- 239000013535 sea water Substances 0.000 title claims abstract description 34
- 235000015097 nutrients Nutrition 0.000 title claims abstract description 11
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 150000003839 salts Chemical class 0.000 claims abstract description 34
- 230000000050 nutritive effect Effects 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 24
- 239000012792 core layer Substances 0.000 claims description 23
- 229920002635 polyurethane Polymers 0.000 claims description 17
- 239000004814 polyurethane Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract description 7
- 235000016709 nutrition Nutrition 0.000 abstract description 6
- 239000003653 coastal water Substances 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 239000013618 particulate matter Substances 0.000 abstract description 3
- 239000003643 water by type Substances 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 26
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 229920006221 acetate fiber Polymers 0.000 description 8
- 229910002651 NO3 Inorganic materials 0.000 description 7
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 7
- 229910019142 PO4 Inorganic materials 0.000 description 7
- 238000001354 calcination Methods 0.000 description 7
- 238000005374 membrane filtration Methods 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 7
- 239000010452 phosphate Substances 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012633 leachable Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JQYOCVPEXWBLGO-UHFFFAOYSA-N [N].[Si].[P] Chemical compound [N].[Si].[P] JQYOCVPEXWBLGO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000010850 salt effect Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides a kind of online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion, and seawater passively can repeatedly pass through the filter, remove the interference of particulate matter and suspension, reaches long-term measurement purpose.It can prevent marine organisms from adhering in 0~200m, and internal three-level filter core can carry out coarse granule one-level filter core, fine grained two level filter core and three-level filter core, long-term use of to be polluted without extra nutritional salt.And one-level filter core, two level filter core and three-level filter core can be changed at any time, convenient operation.The present invention can prevent aufwuch from growing；Three-level filter core can effectively prevent bulky grain silt from entering on-line measurement instrument, improve filtration capacity；Wood fibre and resin material are without nutritive salt pollution or Adsorption Effect；Institute's use device structure and material (for high density PVC material) can the pressure-resistant 200m depth of waters, meet coastal waters or the measurement of far-reaching extra large nutritive salt；Filter effect is obvious, and can online use in situ for a long time.
Description
Technical field
The invention belongs to sewater chemistry original position on-line monitoring field, is long-time in site measurement nitrate, phosphoric acid in ocean
The nutritive salt such as salt, silicate and the advance pollution-free filtration treatment carried out, and in particular to a kind of seawater nutrition of anti-halobios adhersion
The online pre-filtrating equipment of salt.
Background technology
The nutritive salt such as nitrogen phosphorus silicon is the basal nutrient key element of phytoplankton in seawater, and conventional method is that seawater is passed through into 0.45
μm or 0.7 μm of filter membrane, after removing particulate matter, addition reagent carries out reaction solution.To obtain high time resolution in ocean
Nutritive salt change, more using wet-chemical reaction kit in ocean progress on-line monitoring in situ, its principle is measuring instrument in the original location
When device inside peristaltic pump or piston movement, seawater can passively be sucked instrument, so as to carry out reagent colour development reaction automatically.It is and extra large
The suspended particulate substances such as water middle and high concentration silt and biological attachment are that especially coastal waters nutritive salt monitors two faced on-line in ocean
Individual key issue, data precision, the degree of accuracy and instrument service life are largely effected on, therefore online pre- place is carried out to seawater sample
Reason is one of problem that must be captured of coastal waters nutritive salt on-line monitoring.
The pretreatment unit of nutritive salt monitoring both at home and abroad is mostly the acetate fiber filter membrane or glass fibers that laboratory uses at present
Filter membrane is tieed up, is not used to monitor on-line.
And the on-line filtration device of commercialization is used for groundwater sampling, involve great expense, easy biological attachment (such as PallTM、
MilliporeTM、WhatmanTMEtc. brand), simple in construction such as only single-stage filters, and use glass fibre material more, is easy to
Dissolution silicate, the long-term nutrition salt monitoring being not particularly suited in the high turbidity seawater of seawater especially offshore use.
The content of the invention
In order to solve above-mentioned technical problem, the present invention seeks to overcome existing on-line filtration seawater to survey the skill of nutritive salt
Art deficiency, there is provided the seawater euphotic layer nutritive salt for the anti-halobios adhersion that one kind is at least capable of pressure-resistant 300psi (the about 200m depth of waters) exists
Line pre-filtrating equipment.Seawater passively can repeatedly pass through the filter, remove the interference of particulate matter and suspension, reach long-term survey
Measure purpose.It can prevent marine organisms from adhering in 0~200m, and internal three-level filter core can carry out coarse granule one-level filter core, thin
Grain two level filter core and three-level filter core, it is long-term use of to be polluted without extra nutritional salt.And one-level filter core, two level filter core and three-level filter core can
Change at any time, convenient operation.
To achieve the above object, present invention employs following technical scheme：
The present invention provides a kind of online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion, including for seawater successively
One-level filter core, two level filter core and the three-level filter core of filtration treatment are carried out, wherein：One-level filter core is 200 μm of aperture polyurethane screens,
Two level filter core is 60 μm of aperture resin filter element layers, and three-level filter core is 0.45~1 μm of aperture wood fibre filter core layer；
60 μm of apertures resin filter element layer is arranged at 200 μm of aperture polyurethane screens and 0.45~1 μm of wooden fibre in aperture
Between tieing up filter core layer, and by 200 μm of aperture polyurethane screens, 60 μm of aperture resin filter element layers and 0.45~1 μm of wooden fibre in aperture
Dimension filter core layer encapsulates integrally successively；
One layer is folded between 0.45~1 μm of aperture wood fibre filter core layer and 60 μm of aperture resin filter element layers to be used to prevent
Collision, interactional high density PVC supporting clapboards are only produced between two level filter core and three-level filter core；
60 μm of apertures resin filter element layer is in hollow cylinder shape and with extending through high density PVC supporting clapboards simultaneously
It is connected to the feedthrough of 0.45~1 μm of aperture wood fibre filter core layer；So that the seawater after the processing of two level filter element filtering enters
Enter and filtration treatment again is carried out into three-level filter core；
200 μm of aperture polyurethane screens are used to remove most zooplankters and particle diameter is more than 200 μm big
Grain suspension；
60 μm of apertures resin filter element layer is used in pre-filtering seawater particle suspensions in 60~200 μm of particle diameter, described
0.45~1 μm of aperture wood fibre filter core layer is used to remove the small suspended particulate substance of phytoplankton and particle diameter a~60 μm, while not
Nutritive salt absorption, which can be produced, or separated out influences；Wherein：A span is 0.45~1 μm.
Preferably, the one-level filter core is folded in the double-layer porous cover plates of high density PVC, high density PVC is double-deck more
The thickness of blind patch is 4mm, and there is the through hole that 24 apertures are 4.0mm in its section, and allows maximum stream flow to be 2ml/s, is flowed through every
The Peak Flow Rate in individual hole is 0.0016mm/s.
Preferably, the one-level filter core, two level filter core and three-level filter core are encapsulated in high density PVC cylinders successively, its
In：One-level filter core is arranged in the water inlet end of high density PVC cylinders, three-level filter core is arranged on the water outlet of high density PVC cylinders
In end；A multistage general-purpose interface that can be applicable caliber of different sizes, institute are externally connected with the water side of high density PVC cylinders
The water inlet end for stating high density PVC cylinders is in open-like shape structure.
Preferably, the multistage universal joint on high density PVC cylinders passes through inertia flexible pipe and online nutritive salt measuring instrument
Connection, by running online nutritive salt measuring instrument so that form negative pressure in high density PVC cylinders and inertia flexible pipe, seawater is from height
The water inlet end of density PVC cylinders passively sucks, and by the double-layer porous cover plates of high density PVC and 200 μm of aperture polyurethane screens, goes
It is more than 200 μm of zooplankters except particle diameter is more than 200 μm of bulky grain suspensions and particle diameter, then passes through 60 μm of aperture resin filter element layers
Particle suspensions in filtering wherein 60~200 μm of particle diameter, then by feedthrough and high density PVC supporting clapboards, into 0.45
~1 μm of aperture wood fibre filter core layer is removed by filtration small suspended particulate substance；Flow out, enter finally by multistage universal joint
Chromogenic reaction is carried out in line nutritive salt measuring instrument.
Preferably, there are the 20 mesh copper mesh covers for preventing the growth of aufwuch in high density PVC cylinder outer wraps.
Due to the bio-toxicity of copper, the growth of aufwuch, extension fixture service life can be prevented.
Compared with prior art, the beneficial effects of the invention are as follows：
Technical scheme of the present invention as a result of more than, can prevent aufwuch from growing；Three-level filter core can effectively be prevented
Only bulky grain silt enters on-line measurement instrument, improves filtration capacity；Wood fibre and resin material pollute or inhaled without nutritive salt
Attached influence；Institute's use device structure and material (for high density PVC material) can the pressure-resistant 200m depth of waters, meet coastal waters or far-reaching sea
Nutritive salt measures；Filter effect is obvious, and can online use in situ for a long time.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the upward view of the present invention, i.e. Perforated decking；
Fig. 4 is two level filter cartridge construction schematic diagram；
Fig. 5 is the top view of two level filter core；
Fig. 6-1~Fig. 6-4 is influence schematic diagram of the filter medium to nitrate+nitrous nitrification；
Interference schematic diagram of Fig. 7-1~Fig. 7-4 filter mediums to phosphate determination；
The interference schematic diagram that Fig. 8-1~Fig. 8-4 filter mediums determine to silicate；
The interference schematic diagram that Fig. 9-1~Fig. 9-2 filter mediums determine to ammonium salt.
Accompanying drawing marks：1st, multistage general-purpose interface；2nd, 20 mesh copper mesh cover；3rd, 0.45~1 μm of aperture wood fibre filter core layer；4、
High density PVC cylinders；5th, high density PVC supporting clapboards；6th, 60 μm of aperture resin filter element layers；7th, 200 μm of aperture polyurethane screens；
8th, the double-layer porous cover plates of high density PVC；9th, feedthrough.
Embodiment
The embodiment of the present invention is made a detailed explanation below in conjunction with the accompanying drawings.
As shown in Fig. 1~Fig. 5, the present invention provides a kind of tool of the online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion
Body embodiment, including for carrying out the one-level filter core, two level filter core and three-level filter core of filtration treatment successively to seawater, wherein：One
Level filter core is 200 μm of aperture polyurethane screens 7, and two level filter core is 60 μm of aperture resin filter element layers 6, and three-level filter core is 0.45~1 μ
M apertures wood fibre filter core layer 3；60 μm of apertures resin filter element layer 6 is arranged at 200 μm of aperture polyurethane screens 7 and 0.45
Between~1 μm of aperture wood fibre filter core layer 3, and by 200 μm of aperture polyurethane screens, 7,60 μm of aperture resin filter element layers 6 with
0.45~1 μm of aperture wood fibre filter core layer 3 encapsulates integrally successively；In 0.45~1 μm of aperture wood fibre filter core layer 3 and 60
One layer is folded between μm aperture resin filter element layer 6 to be used to prevent from producing collision, mutual shadow between two level filter core and three-level filter core
Loud high density PVC supporting clapboards 5.
60 μm of apertures resin filter element layer 6 is in hollow cylinder shape and with extending through high density PVC supporting clapboards 5
And the feedthrough 9 of 0.45~1 μm of aperture wood fibre filter core layer 3 is connected to, filtration capacity can be greatly improved.By two level
Seawater after the filtration treatment of filter core enters carries out filtration treatment again in three-level filter core；200 μm of aperture polyurethane screens
Net 7 is used to remove most zooplankters and particle diameter is more than 200 μm of bulky grain suspensions；60 μm of aperture resin filter elements
Layer 6 is used in pre-filtering seawater particle suspensions in 60~200 μm of particle diameter；0.45~1 μm of aperture wood fibre filter core layer 3
For removing the small suspended particulate substance of phytoplankton and particle diameter a~60 μm, while nutritive salt absorption will not be produced or separate out shadow
Ring；Wherein：A span is 0.45~1 μm.
Wherein：The one-level filter core is folded in the double-layer porous cover plates 8 of high density PVC, the double-layer porous lids of high density PVC
The thickness of plate 8 is 4mm, and there is the through hole that 24 apertures are 4.0mm in its section, and allows maximum stream flow to be 2ml/s, flows through each hole
Peak Flow Rate be 0.0016mm/s.
The one-level filter core, two level filter core and three-level filter core are encapsulated in high density PVC cylinders 4 successively, wherein：By one-level
Filter core is arranged in the water inlet end of high density PVC cylinders 4, and three-level filter core is arranged in the water side of high density PVC cylinders 4；
The water side of high density PVC cylinders 4 is externally connected with a multistage general-purpose interface 1 that can be applicable caliber of different sizes, the height
The water inlet end of density PVC cylinders 4 is in open-like shape structure.
Wherein：It is to be wrapped up by 20 mesh copper mesh covers 2 outside the high density PVC cylinders 4, due to the bio-toxicity of copper, can prevents
The only growth of aufwuch, extension fixture service life.
Apparatus of the present invention can integrally pass through chemical inertnessFlexible pipe connects multistage universal joint 1 and online nutritive salt is surveyed
Instrument is measured, when instrument is run, forms negative pressure, seawater passively sucks from the water inlet end of apparatus of the present invention, passes through the double-layer porous He of cover plate 8
200 μm of aperture polyurethane screens 7, remove particle diameter and be more than 200 μm of zooplankters more than 200 μm of bulky grain suspensions and particle diameter, so
Particle suspensions in wherein 60~200 μm of particle diameter are filtered by 60 μm of aperture resin filter element layers 6 afterwards, then pass through the He of feedthrough 9
High density PVC supporting clapboards 5, small suspended particulate substance is removed by filtration into 0.45~1 μm of aperture wood fibre filter core layer 3；Finally
Flowed out by multistage universal joint 1, enter and chromogenic reaction is carried out in online nutritive salt measuring instrument.
During long-term in site measurement, copper mesh cover 2 can prevent biological attachment, and be polluted without extra nutritional salt, whole so as to extend
The service life of device.2,0.45~1 μm of 3,60 μm of aperture wood fibre filter core layer, 6,200 μm of aperture resin filter element layer of copper mesh cover
Aperture polyurethane screen 7 can regularly replace, and actual test result is as follows：
Filtration test shows, for turbidity 15NTU river, 25ml 7.4g 0.45~1 μm of aperture wood fibre filter core
Layer 3 may filter that 7.2L, effect and 0.7 μm of WhatmanTMGF/F glass fiber filters are suitable.In terms of extracting 30ml every time by instrument,
No. 8 meters of sampling daily, are pre-processed, then device can at least make using 25ml glass fibres or wood fibre as filter medium
With 30 days.
Filter medium is to nutritive salt determination influences：Online nutritive salt measuring instrument uses U.S. GreenProduction
EcoLAB2TMType.Material for core is divided into bare glass fibre, glass fibre after distilled water cleaning, 750 DEG C burn through preliminary type selecting
Glass fibre after burning, four kinds of materials of wood fibre.After installing filter additional, EcoLAB2 is usedTMThe repeatedly nutrition of measure same sample
Salinity.Standard true value is the use Ecolab2 by same sample after 0.45 μm of acetate fiber membrane filtrationTMMeasurement result.
Compare the influence that four kinds of material mediums determine to nutritive salt.
To nitrate+nitrite parameter, without any processing glass fibre result relative error 15%~30% it
Between (Fig. 6-1)；Through the cleaned glass fibre of 6L distilled water, repeatedly measure same sample relative error and gradually increase to
10% or so (Fig. 6-2)；Glass fibre relative error between-15%~10% (Fig. 6-3) after 750 DEG C of calcinations；Wood fibre
As a result with using being surveyed after 0.45 μm of acetate fiber membrane filtration, true value is closest, and relative error is between -10%~5%
(Fig. 6-4).Therefore wood fibre relative can meet nitrate+nitrous nitrification requirement after filtering.
To phosphate parameter, glass fibre is larger to determination influences, unprocessed leachable 2~3 times of samples of glass fibre
The phosphate concn of product, cover sample actual value (Fig. 7-1)；After distilled water cleaning glass fibre, concentration numbers obtained by filtered sample
It is larger according to being changed with relative error, there may be phosphate dissolution to influence (Fig. 7-2)；Glass fibre phosphate is molten after 750 DEG C of calcinations
Go out to significantly reduce, but relative error is still between 0~15% (Fig. 7-3)；Using wood fibre as filter medium substantially without shadow
Ring, relative standard deviation is 2.2%, relative error between 0~5% (Fig. 7-4).Therefore after wood fibre relative can meet filtering
Determine phosphate requirement.
To silicate parameter, glass fibre is larger to determination influences, unprocessed leachable 3~4 times of samples of glass fibre
The silicate concentration (Fig. 8-1) of product；After distilled water cleaning treatment glass fibre, concentration data and the same larger (figure of relative error
8-2)；Glass fibre silicate dissolution significantly reduces after 750 DEG C of calcinations, and measure relative error is between 0~15%, relative standard
Deviation within 10% (Fig. 8-3).Relative standard deviation is surveyed 9.5% using wood fibre post-filtration samples, with use
Effect is suitable (Fig. 8-4) after 0.45 μm of acetate fiber membrane filtration.Therefore wood fibre determines silicate after relative can meeting filtering
It is required that.
To ammonium salt parameter, due to NH be present in air3Therefore detection is more unstable, the glass fibre that either calcination is handled
Or 0.45 μm of filter membrane, relative standard deviation is tested after filtering all in 10% or so, even greater than 10% (Fig. 9-1；9-2).750
Glass fibre relative error between-30%~0% (Fig. 9-1) after DEG C calcination, wood fibre relative error is -10%~10%
Between (Fig. 9-2), be still better than glass fibre.
In a word, using 0.5-1.0 μm of wood fibre as filter medium to nutritive salt determination influences very little, with using 0.45 μm
It is suitable that effect is determined after acetate fiber membrane filtration, available for long-term on-line measurement in situ.
Seawater sample turbidity compares after the primary election filtration of material of table 1
Fig. 6-1~Fig. 6-4 is influence schematic diagram of the filter medium to nitrate+nitrous nitrification, wherein：Left side coordinate
Axle is nitrate+nitrite concentration；Right side reference axis is relative error, and relative error acceptance of the bid quasi-value is represented with straight line.
Specifically：
Water sample used is Nantong fish-farming operation harbour water sample in Fig. 6-1, and filter medium used is：Untreated glass fibers
Dimension；
Water sample used is Yang Shan Shen Jia gulfs harbour water sample in Fig. 6-2, and filter medium used is：After being washed with 6L distilled water
Glass fibre；
Water sample used is Shanghai front three port harbour water sample in Fig. 6-3, and filter medium used is：Calcination 4 is small at 750 DEG C
When handle glass fibre；
Water sample used is Shanghai front three port harbour water sample in Fig. 6-4, and filter medium used is：Wood fibre.
According to figure 6 above-1~Fig. 6-4, it can be deduced that：Wood fibre result is with using 0.45 μm of acetate fiber membrane filtration
Surveyed true value is closest afterwards, and relative error is between -10%~5%, therefore under comparing, after wood fibre can meet filtering
Nitrate+nitrous nitrification requirement.
Interference schematic diagram of Fig. 7-1~Fig. 7-4 filter mediums to phosphate determination, specifically：
It is used for Yang Shan Shen Jia gulfs harbour water sample in Fig. 7-1~Fig. 7-2；
It is used for Shanghai front three port harbour water sample in Fig. 7-3~Fig. 7-4.
According to figure 7 above-1~Fig. 7-4, it can be deduced that：Wood fibre result is with using 0.45 μm of acetate fiber membrane filtration
Surveyed true value is the most stable and close afterwards, and for relative error between -3%~5%, it is 2.2% repeatedly to measure relative standard deviation
Left and right, therefore using wood fibre as filter medium substantially without influence, wood fibre determines phosphoric acid after can meeting filtering by contrast
Salt requirement.
The interference schematic diagram that Fig. 8-1~Fig. 8-4 filter mediums determine to silicate, specifically：
It is used for Yang Shan Shen Jia gulfs harbour water sample in Fig. 8-1~Fig. 8-2；
It is used for Shanghai front three port harbour water sample in Fig. 8-3~Fig. 8-4.
According to figure 8 above-1~Fig. 8-4, it can be deduced that：Relative standard deviation is surveyed using wood fibre post-filtration samples to exist
9.5%, it is 3.1% that true value standard deviation is determined after 0.45 μm of acetate fiber membrane filtration of relative usage, and effect is suitable.Therefore compare
Under wood fibre can meet filtering after determine silicate requirement.
The interference schematic diagram that Fig. 9-1~Fig. 9-2 filter mediums determine to ammonium salt, specifically：
It is used for Yang Shan Shen Jia gulfs harbour water sample in Fig. 9-1；
It is used for Shanghai front three port code water sample in Fig. 9-2.
According to figure 9 above-1~Fig. 9-2, it can be deduced that：For wood fibre relative error between -10%~10%, data are steady
It is qualitative to be better than glass fibre, therefore wood fibre filtered sample surveys the glass that ammonium salt effect is better than calcination processing at 750 DEG C by contrast
Glass fiber.
It is emphasized that：It the above is only presently preferred embodiments of the present invention, not the present invention made any formal
Limitation, every any simple modification, equivalent change and modification for being made to above example of technical spirit according to the present invention,
In the range of still falling within technical solution of the present invention.
Claims (5)
- A kind of 1. online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion, it is characterised in that including for seawater successively One-level filter core, two level filter core and the three-level filter core of filtration treatment are carried out, wherein：One-level filter core is 200 μm of aperture polyurethane screens (7), two level filter core is 60 μm of aperture resin filter element layers (6), and three-level filter core is 0.45~1 μm of aperture wood fibre filter core layer (3)；60 μm of apertures resin filter element layer (6) is arranged at 200 μm of aperture polyurethane screens (7) and 0.45~1 μm of aperture is wooden Between fabric filter element layer (3), and by 200 μm of aperture polyurethane screens (7), 60 μm of aperture resin filter element layers (6) with 0.45~1 μm Aperture wood fibre filter core layer (3) encapsulates integrally successively；One layer is folded between 0.45~1 μm of aperture wood fibre filter core layer (3) and 60 μm of aperture resin filter element layers (6) to be used for Prevent from producing collision, interactional high density PVC supporting clapboards (5) between two level filter core and three-level filter core；60 μm of apertures resin filter element layer (6) is in hollow cylinder shape and with extending through high density PVC supporting clapboards (5) And it is connected to the feedthrough (9) of 0.45~1 μm of aperture wood fibre filter core layer (3)；After the filtration treatment of two level filter core Seawater enter and carry out filtration treatment in three-level filter core again；200 μm of aperture polyurethane screens (7) are used to remove zooplankter and particle diameter is more than 200 μm of bulky grain suspensions；60 μm of apertures resin filter element layer (6) is used in pre-filtering seawater particle suspensions in 60~200 μm of particle diameter；0.45~1 μm of aperture wood fibre filter core layer (3) is used to remove the small suspension of phytoplankton and particle diameter a~60 μm Grain thing, while nutritive salt absorption will not be produced or separate out influence；Wherein：A span is 0.45~1 μm.
- 2. according to a kind of online pre-filtrating equipment of nutrients in sea water of anti-halobios adhersion described in claim 1, its feature exists In the one-level filter core is folded in the double-layer porous cover plates of high density PVC (8), the double-layer porous cover plates of high density PVC (8) Thickness is 4mm, and there is the through hole that 24 apertures are 4.0mm in its section, and allows maximum stream flow to be 2ml/s, flows through each hole most Big flow velocity is 0.0016mm/s.
- 3. according to a kind of online pre-filtrating equipment of nutrients in sea water of anti-halobios adhersion described in claim 1 or 2, its feature It is, the one-level filter core, two level filter core and three-level filter core are encapsulated in high density PVC cylinders (4) successively, wherein：By one-level Filter core is arranged in the water inlet end of high density PVC cylinders (4), and three-level filter core is arranged on the water side of high density PVC cylinders (4) It is interior；A multistage general-purpose interface (1), the high density PVC cylinders (4) are externally connected with the water side of high density PVC cylinders (4) Water inlet end be in open-like shape structure.
- 4. according to a kind of online pre-filtrating equipment of nutrients in sea water of anti-halobios adhersion described in claim 3, its feature exists In the multistage general-purpose interface (1) on high density PVC cylinders (4) is connected by inertia flexible pipe with online nutritive salt measuring instrument, is passed through Run online nutritive salt measuring instrument so that form negative pressure in high density PVC cylinders (4) and inertia flexible pipe, seawater is from high density PVC The water inlet end of cylinder (4) passively sucks, by the double-layer porous cover plates of high density PVC (8) and 200 μm of aperture polyurethane screens (7), Remove particle diameter and be more than 200 μm of zooplankters more than 200 μm of bulky grain suspensions and particle diameter, then pass through 60 μm of aperture resin filter elements Particle suspensions in layer (6) filtering wherein 60~200 μm of particle diameter, then pass through feedthrough (9) and high density PVC supporting clapboards (5), it is removed by filtration small suspended particulate substance into 0.45~1 μm of aperture wood fibre filter core layer (3)；Connect finally by multistage is general Mouth (1) outflow, enters and chromogenic reaction is carried out in online nutritive salt measuring instrument.
- 5. according to a kind of online pre-filtrating equipment of nutrients in sea water of anti-halobios adhersion described in claim 4, its feature exists In having the 20 mesh copper mesh covers (2) for preventing the growth of aufwuch in high density PVC cylinders (4) outer wrap.
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| CN107126758A (en) * | 2017-06-02 | 2017-09-05 | 上海仪耐新材料科技有限公司 | A kind of two-layer equation filter net system with anti-halobios adhersion |
| CN107643375A (en) * | 2017-08-11 | 2018-01-30 | 国家海洋技术中心 | A kind of ocean water quality quasi-instrument sea trial method based on ocean fixed platform |
| CN113376001B (en) * | 2021-07-12 | 2022-08-19 | 国家海洋局北海环境监测中心 | Phytoplankton sample impurity removing device and using method thereof |
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