CN1424983A - Water purification filter - Google Patents
Water purification filter Download PDFInfo
- Publication number
- CN1424983A CN1424983A CN00818582A CN00818582A CN1424983A CN 1424983 A CN1424983 A CN 1424983A CN 00818582 A CN00818582 A CN 00818582A CN 00818582 A CN00818582 A CN 00818582A CN 1424983 A CN1424983 A CN 1424983A
- Authority
- CN
- China
- Prior art keywords
- water
- zinc
- gac
- filter
- strainer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
- C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
Abstract
An activated carbon having an ash content as determined in accordance with ASTM 2866 of less than 1% and which has a zinc adsorption capability such that a filter containing 1.5 g of the activated carbon will adsorb zinc contained in water at a concentration of from 3 to 25 mg/l so as to reduce the concentration of the zinc to below 3 mg/l is described. The activated carbon is suitable for use in water filters. Also described in a water purification system comprising an activated carbon filter and a redox alloy filter which is located upstream of the activated carbon filter so that in use water passes sequentially through the redox alloy filter and then through the activated carbon filter.
Description
In general, the present invention relates to water purifies and water purification system.The invention still further relates to the type material that can be used for water purification system.More particularly, the present invention relates to a kind of novel absorbent charcoal and relate to the strainer that this gac is housed, it can be used from water purification system with redox alloy strainer and/or porous ceramic filter one, so that produce high-purity water.
Usually in water purification system, come except that contained organic pollutant and chlorine in anhydrating with gac.It is granular that gac is generally, but it also can be pulverous or casting becomes porous block thing or right cylinder.
The water purification system that the porous ceramic filter element is arranged also is known.In these systems, ceramic filter element contains the hole that its overall dimension comprises the 0.7-1.0 micron usually.The size in hole is small enough to remove the most malignant bacteria of 99.0-99.9%, but it can't be small enough to guarantee to prevent various water-borne diseases.In addition, though might make the more ceramic filter element of orifice size (for example little of 0.2 micron), these elements are too crisp, so that can not be used safely in the water purification system that crackle in the element wherein may become fatal risk.
It also is known using the redox alloy of zinc and copper in water purifies.These materials have by losing electronics or obtaining electronics from pollutent removes the toxic metal ion of polluted water and the ability of chlorine.But these alloys have zinc and copper are discharged into shortcoming in the water, because zinc and copper itself is deleterious to HUMAN HEALTH, therefore only can use on a small quantity.
Other currently known methodss that are used for water sterilization comprise use chlorine, iodine, ozone and ultraviolet ray.
We have now developed a kind of novel absorbent charcoal and have used the novel water purification system of described gac.
According to a first aspect of the invention, the gac of a kind of ash content less than 1% (measuring according to ASTM2866) is provided, described gac has such zinc loading capacity, so that the strainer that 1.5 gram gacs are housed can planar water in contained concentration be the zinc of 3-25 mg/litre, zinc concentration is dropped to below 3 mg/litre, for example below 1700 micrograms per litre.
According to a second aspect of the invention, provide a kind of strainer that the gac of first aspect present invention is housed.This strainer is preferably water filter, is generally the filter core form of the filter chamber of adorning active-carbon bed or layer.
Gac of the present invention to positive charge metal ion (positively charged ion) particularly zine ion affinity is arranged, when described gac and redox alloy one were used from water purification system, described gac can have some advantages.
The zinc adsorptive power of gac of the present invention is such, so that the strainer that 1.5 gram gacs are housed can planar water in concentration be the zinc (as zine ion) of 3-25 mg/litre, make the density loss of zinc in water below 3 mg/litre, for example below 1700 micrograms per litre.More particularly, gac of the present invention can be handled the water that contains 3-25 mg/litre, for example 5-25 mg/litre zinc, drops to the 15-1700 micrograms per litre to cause zinc concentration, for example the 15-180 micrograms per litre.Usually, the zinc loading capacity of gac of the present invention is a 0.5-4.0 liter/minute be issued at the water flow velocity by strainer.
As what be described in more detail below, when the downstream of the strainer that gac is housed at the strainer of the redox alloy that zinc and copper are housed, the zinc loading capacity of gac of the present invention is a particularly important.When redox alloy and activated charcoal filter are sent into chloride water successively, redox alloy strainer absorption chlorine, and be the 3-25 mg/litre with concentration usually, for example the zinc of 5-25 mg/litre is discharged in the water.Have found that, when redox alloy strainer and activated charcoal filter successively with flow velocity 0.5-4 liter/when being distributed into the water that contains 0.1-10 mg/litre chlorine, adsorbable basically for example about 80% (mole) of strainer that 1.5 grams gac of the present invention is housed is discharged into zinc in the water by 1 strainer that restrains the redox alloy of zinc and copper is housed.This absorption can make the density loss of zinc in water below 3 mg/litre, for example below 1700 micrograms per litre, and preferably makes density loss arrive the 15-1700 micrograms per litre, more preferably the 15-180 micrograms per litre.
In an embodiment preferred, gac is a particle form, more specifically is sheet.The mean thickness of active carbon plate is the 0.02-0.2 millimeter, comprises that its maximum sized mean particle size is that 0.2-0.6 millimeter and length-to-diameter ratio (overall dimension and thickness ratio that refer to sheet) are 20: 1 to 10: 3.More preferably, the mean thickness of active carbon plate is the 0.05-0.1 millimeter; By its maximum sized mean particle size is that 0.25-0.55 millimeter, particularly 0.32-0.52 millimeter, and length-to-diameter ratio are 25: 2 to 4: 1, particularly 10: 1 to 20: 3.
As press ASTM2866 and measure, the ash content of gac of the present invention is less than 1% (weight).ASTM2866 can find in Coal ASTM Book of Standards.
The iodine number of gac is generally 1000-1400 milligram/gram, preferred 1100-1300 milligram/gram, particularly 1250-1300 milligram/gram.
The specific surface area of gac (as measuring by nitrogen BET isothermal method) is preferably 1000-1400 rice
2/ gram, more preferably 1100-1300 rice
2/ gram, particularly 1175-1200 rice
2/ gram; Pore volume (measuring as pressing ASTM3838) is 0.5-0.7 milliliter/gram, more preferably 0.55-0.65 milliliter/gram, particularly 0.6-0.62 milliliter/gram; Hardness (measuring as pressing ASTM3802) is 90-100%, more preferably 95-100%, particularly 98-100%; The golden carrying capacity of K value (measuring as pressing the AARL method) is 15-30 milligram gold/gram, more preferably 20-25 milligram gold/gram, particularly 23-25 milligram gold/gram; And the golden kinetics of R value (as measuring by the AARL method) is 45-75%, is more preferably 50-70%, particularly 55-60%.
In principle, gac of the present invention can be made by various sources, but is preferably made by Exocarpium cocois (Cocos nucifera L) by the following method: fire Exocarpium cocois (Cocos nucifera L) and generate charcoal; Then the gained palm shell charcoal is carried out reactivation process, charcoal is by overheated in this course.
Therefore, according to a third aspect of the invention we, provide a kind of preparation process of active carbon, described method comprises makes the charcoal that is generated by the Exocarpium cocois (Cocos nucifera L) burning carry out reactivation process, in this course described charcoal is heated 10-50 minute down at 1000-3500 ℃.
Reactivation process is carried out with the preferred superheated vapour of overheated gas usually; In an embodiment preferred, 2000-3500 ℃, more preferably carry out under 2800-3100, particularly 2950-3000 ℃.
The time of also finding reactivation process also is important; Preferably carried out 15-45 minute, more preferably 25-35 minute, particularly 28-32 minute.Obviously, palm shell charcoal time of carrying out reactivation process is depended on the temperature that described process is used to a certain extent.But the described reactivation process time is longer significantly than traditional reactivation process time usually.
The preferred oxygen-free gas of the atmosphere that reactivation process is carried out.
Reactivation process can be carried out at commercial activation furnace or the kiln that is used for preparing any suitable form of known particle form gac.
Gac of the present invention is transformed into sheet form can be realized with known industrial chelating (chellation) process.
The activated charcoal filter of second aspect present invention is generally the filter core form of having family, and the gac as bed or floor is housed in the chamber.Filter core is preferably cylindrical.Gac can form bed in filter core, and the structure of filter core can be like this, so that in use when water during from the end to end of filter core, makes water vertically pass through active carbon bed.Perhaps, filter core can have tubular-shaped structures, and wherein gac forms circular layer between the internal and external casing of porous water permeable material, thus in use when water when filter core inside flows to the outside, or during reverse direction, make water laterally pass through gac.Filter core can be equipped with the entrance and exit joint, and the conduit of water being sent into and sent filter core can be connected on the joint.Perhaps, filter core can be installed in the filter housing, and shell is equipped with the entrance and exit joint, makes water send into and send the filter core that gac is housed.
The present invention also provides a kind of water purification system, described water purification system comprises the activated charcoal filter of second aspect present invention and is positioned at the redox alloy strainer of activated charcoal filter upstream, so that in use water passes through activated charcoal filter then at first by redox alloy strainer.
For example by the arrangement of conduit, with activated charcoal filter and the series connection of redox alloy strainer, so that the water of discharging from redox alloy strainer is sent to activated charcoal filter.
The redox alloy is a granulate material, is preferably the alloy of zinc and copper.The redox alloy of preferred zinc and copper is for containing the copper of 30-70% (weight) zinc and 70-30% (weight), the more preferably alloy of 40-60% (weight) zinc and particularly about 50% (weight) zinc of 60-40% (weight) copper and about 50% (weight) copper.The redox alloy of a kind of particularly preferred zinc and copper is sold (KDF Fluid Systems Inc provides) with trade mark KDF-55.
Redox alloy strainer constitutes the part of the filter core of filter chamber usually, and filter chamber is equipped with redox alloy bed.Filter core is preferably cylindrical.The redox alloy can form bed in filter core, and that the structure of filter core can be is such, thus in use when water when an end of filter core flows to the other end, make the longitudinal stream peroxidation of water reduce the alloy bed.On the other hand, filter core can have tubular structure, and wherein the redox alloy forms the ring-type bed between the internal and external casing of the permeable material of porous water, so that in use when water is outside from the filter core internal flow, or during reverse direction, make water laterally by the redox alloy.Filter core can be equipped with the entrance and exit joint, and the conduit of sending into and send filter core can be connected on the joint.On the other hand, filter core can be contained in the filter housing, and the latter is equipped with the entrance and exit joint, water is sent into and sent the filter core that the redox alloy is housed.
Certainly, the activated charcoal filter that we do not discharge redox alloy strainer and second aspect present invention can be assembled in the single filter core, arrange that redox alloy and active carbon bed are very simple, so that the water in purifying passes through gac then at first by the redox alloy.
In water purification system, in redox alloy strainer and activated charcoal filter, the weight ratio of redox alloy and gac is preferably 1: 1 to 1: 10, more preferably 1: 1 to 1: 2, particularly 1: 1.4 to 1: 1.6.In a particularly preferred embodiment, every use 250 gram redox alloys just use 375 gram gacs.
In traditional water purification system, only can use the redox alloy that is used to remove toxic metal ion and chlorine on a small quantity, because they are discharged into zinc and copper in the water, zinc and copper itself is harmful to HUMAN HEALTH.On the contrary, we find, in water purification system of the present invention, can use more substantial redox alloy, therefore more substantial toxic metal ion and chlorine be can remove, for example zinc and copper in the water are discharged into by the redox alloy because can separate or adsorb metal at the activated charcoal filter of the second aspect present invention of redox alloy strainer back.
Tap water contains 0.1-10 mg/litre chlorine usually, when it with the 0.5-4 liter/minute the strainer of the redox alloy of speed by 1000 gram zinc and copper are housed the time, chlorine is filtered fully basically that device is removed and the zinc of 3-25 mg/litre quantity is discharged in the water.Certainly, the zinc quantity that is discharged in the water increases and increases along with the quantity of chlorine in the water of sending into strainer.
Usually, if chloride quantity be about 2 mg/litre (2ppm) water with the 0.5-4.0 liter/minute the strainer of the redox alloy of speed by 1000 gram zinc and copper are housed, the strainer water of discharging will contain 5-8 mg/litre zinc so.But, be about 10 mg/litre (10ppm) if enter the cl content of the water of same filter, the water of strainer discharge contains 20-25 mg/litre zinc usually so.
Water purification system of the present invention preferably also comprises a porous ceramic filter element, it be positioned at activated charcoal filter the downstream and with its fluid flow communication, so that the activated charcoal filter water of the discharging ceramic filter element of delivering to and flow through in use.When water purification system also comprises a porous ceramic filter element, should be appreciated that in use water passes through porous ceramic filter then successively by redox alloy strainer, activated charcoal filter.
In water purification system of the present invention, the arrangement of strainer makes the porous ceramic filter element be used for removing anhydrate contained iron and aluminium.Redox alloy strainer tends to produce neutral pH value, and for example pH value is 6.5-7.0, and iron and aluminium are precipitated under this pH value comes out.Remove sedimentary iron and aluminium with ceramic filter element then.
The porous ceramic filter element can be and is used for the form that water purifies traditionally.The hole dimension of these elements is generally 0.2-1.2 micron, particularly 0.3-0.9 micron, for example 0.5-0.7 micron.So-called hole dimension, we refer to the maximum sized size by (striding across) hole.
The overall porosity of preferred ceramic filter element is 30-80%, more preferably 45-75%, particularly 50-70%, especially 58-62%.
A part of hole may be partly by water-insoluble particulates plug in ceramic filter element.Usually, these particles are 0.1-1.0 micron, preferred 0.2-0.5 micron, particularly 0.3-0.4 micron by its maximum sized mean sizes; To obtain by its maximum sized effective mean sizes in the hole be 0.09-0.7 micron, preferred 0.2-0.5 micron, more preferably 0.2-0.4 micron, the particularly hole of 0.2-0.35 micron in case they are stayed.In this method because the hole of partial blocking can be used to remove anhydrate in the contained foreign matter that drops to effective hole dimension, institute is so that the filtration capacity raising of ceramic filter element.Preferably, the particle of obstruction is essentially circle.
The hole of ceramic filter element preferably has general eye shape cross section, and the particle that blocks preferably is essentially spherical and have size in the turning that is contained in ceramic filter element eye shape hole.Can reach the partial blocking in some holes in the ceramic filter element by procedure of processing independently, described step is used for carrying out before predetermined the application at element.
Ceramic filter element is installed in the filter housing of entrance and exit joint usually, and joint is used to connect the conduit of sending into and send strainer that is used for water.Ceramic filter element is preferably handled with sterilizing agent, is generally silver, breeds in element to prevent microorganism.
Water purification system of the present invention also preferably has second activated charcoal filter that is positioned at the ceramic filter element downstream, so that the water of ceramic filter element discharge in use enters second activated charcoal filter.The gac that is used for second activated charcoal filter should have the activated carbon types of the water purification system that is used to remove organic compound traditionally, and casting becomes the porous block thing usually.
Second activated charcoal filter places the filter housing of entrance and exit joint usually, and this joint is owing to connect the conduit of water being sent into and sent strainer.
As mentioned above, the gac that is used for second activated charcoal filter has the activated carbon types of the water purification system that is used to remove organic compound traditionally usually.But in traditional water purification system, the loading capacity of this class gac consumes very rapidly usually, because it is also except that contained chlorine in anhydrating.Therefore, its validity is very short.And, when soon losing efficacy, undesirable high-content organism is discharged in the water.Chlorine is adsorbed on the gac more strongly than organism, so preferentially occupy adsorption site at the upstream extremity of strainer.In use, the adsorption site volume that is occupied by chlorine constantly increases, and organism is displaced to the downstream end of strainer gradually.When adsorption site is occupied fully, filter failure, and organism is replaced from strainer and send into the ratio that the chlorine in the water is adsorbed and be released in the water to be contained in.Therefore usually much higher than the organism content of chlorine is present in the water, and when soon losing efficacy, organism can be with compared with the much higher concentration discharge filter of organic concentration in the beginning water.
Can avoid these problems with water purification system of the present invention, because the redox alloy that can use sufficient amount to be to remove all or whole chlorine basically, therefore second activated charcoal filter is only handled organism.The organic constituent that these organism are included in any bacterium of decomposing in the ceramic filter element is intracellular toxin for example.
Will be appreciated that from above-mentioned, a preferred water purification system comprises activated charcoal filter, ceramic filter element and second activated charcoal filter of redox alloy strainer, second aspect present invention successively, they are so arranged, so that in use water is successively by redox alloy strainer, the activated charcoal filter of second aspect present invention, ceramic filter element, at last by second activated charcoal filter.These strainers can be contained in the single filter core.
Water purification system of the present invention also can comprise an anionic resin filter device.During use, this strainer is between the ceramic filter element and second activated charcoal filter usually.
Water purification system of the present invention also comprises the prefilter that is used to remove larger particles, for example sand, gravel, rust, cigarette charcoal, peat, liver moss and algae.The size of these particulate matter is generally the 1-100 micron, for example the 5-50 micron.
When using, this prefilter provides the first coarse filtration step, so be positioned at the upstream of redox alloy strainer.
Water purification system of the present invention also can comprise a pump, flows through filter set in order to drive the water that will purify.This pump can be with hand or power operation, for example with electric power or oil engine.
Description is described the present invention as an example, and wherein: Fig. 1 is that water purification system of the present invention is to show various filter arrangement.
In Fig. 1, water purification system (1) comprises redox alloy filter (2) and this The active carbon filter of bright second aspect (3), porous ceramic filter element (4) and porous charcoal piece Filter cell (5).
Redox alloy filter (2) and active carbon filter (3) are combined in the list of filter chamber In the one cylindrical filter core, independently bed arrangement of active carbon and redox alloy conduct in the filter chamber, So that in use when the water that will purify flowed to the other end from an end of filter core, it vertically passed through The filter bed.
Filter core is contained in (not shown) in the first cylindrical filter shell, it its end be equipped with into Mouth and outlet connection are to connect the conduit (not shown) of water being sent into and sent filter. First mistake The filter shell makes water send into and send filter core, so that water is right at first by redox alloy bed After pass through active carbon bed.
Porous ceramic filter element (4) is cylindrical, and tubular structure is arranged. The porous activated carbon piece Filter cell (5) also is cylindrical, and is positioned at tubular ceramic filter cell (4) is housed In the centre chamber. The diameter of porous activated carbon piece filter cell (5) is such, so that its close-fitting Be incorporated into the inside of ceramic filter element (4), and whole filter assemblies is positioned at the second cylindrical mistake Filter shell (not shown) inside, this filter housing have and connect to be used for water and to send into and send filter The entrance and exit joint (not shown) of conduit. Second filter housing is arranged like this, to cause Water laterally by ceramic filter element (4), enters active carbon filter element (5) then, There water to the port of export of filter housing usually vertically to flow away.
First filter of redox alloy filter (2) and active carbon filter (3) is housed Shell and porous ceramic filter element (4) and porous activated carbon piece filter cell (5) be housed Second filter housing connect by the configuration (not shown) of conduit, make second filter Shell is positioned at the downstream of first filter housing, so that in use water closes by redox successively Gold filter device (2), active carbon filter (3), porous ceramic filter element (4) and porous are lived Property carbon block filter device element (5). Then first filter housing is connected with the water source that will purify.
In use, the current by water purification system represent with thick arrow usually.
With reference to following examples the present invention is described again, but is not limitation of the present invention.
Embodiment 1
With reference to figure 1, above-mentioned water purification system is used for purifying 10000 liters of tap water by following contaminating impurity:
Chlorion (Cl
2 -) 10 mg/litre
Iron ion (Fe
2+) 50 mg/litre
Lead ion (Pb
2+) 100 micrograms per litre
Aluminum ion (Al
3+) 100 micrograms per litre
Chloroform 10 micrograms per litre
Trichloroethane 10 micrograms per litre
Zinc 0
Activated charcoal filter (3) has the bed of active carbon plate, and described active carbon plate mean thickness is about 0.1 millimeter, is that about 0.5 millimeter and length-to-diameter ratio are about 5: 1 by its maximum sized mean particle size.Gac also has following character:
Iodine number is about 1300 a milligrams/gram,
The specific surface area of measuring by nitrogen BET thermoisopleth is about 1200 meters
2/ gram,
The pore volume of measuring by ASTM3838 is about 0.6 a milliliter/gram,
The hardness of measuring by ASTM3802 is about 99%,
The golden carrying capacity of measuring by the AARL method of K value is about 24 milligrams of gold/grams,
The golden kinetics of measuring by the AARL method of R value is about 58%.
Redox alloy strainer (2) has the Inc from KDF Fluld Systems.The KDF-55 bed of buying.
The product that porous ceramic filter element (4) is purchased with product code Imperial Supercarb from Fairey Industrial Ceramics.Filter element has a shape hole usually, and this hole is that about 0.9 micron and overall porosity are about 65% by its maximum sized mean sizes.
Porous charcoal piece filter element (5) is from Ametek Inc.The product that is purchased with product code CBC10.
In redox alloy strainer (2) and activated charcoal filter (3), the weight ratio of redox alloy and gac is such, so that per 375 gram gacs provide 250 gram redox alloys.
Tap water through polluting by water purification system, is collected the water samples that obtain from system with 2 liters/minute flow velocity for per 1000 liters at interval, and with Merck Spectroquant Kit in conjunction with the ultraviolet-visual spectrometer analysing impurity.After water purification system, foreign matter content all is lower than limit of detection in the water of each sample, comprises the final sample of all water by being got after the system.
With reference to figure 1, above-mentioned water purification system is used for purifying with 10 mg/litre chlorine (as Cl
2 -Ion) 10000 liters of tap water of Wu Raning.
Activated charcoal filter (3) has the bed of active carbon plate, and this activity carbon plate mean thickness is about 0.1 millimeter, is that about 0.5 millimeter and length-to-diameter ratio are about 5: 1 by its maximum sized mean particle size.Gac also has following character:
Iodine number is about 1300 a milligrams/gram,
The specific surface area of measuring by nitrogen BET thermoisopleth is about 1200 meters
2/ gram,
The pore volume of measuring by ASTM3838 is about 0.6 a milliliter/gram,
The hardness of measuring by ASTM3802 is about 99%,
The golden carrying capacity of measuring by the AARL method of K value is about 24 milligrams of gold/grams,
The golden kinetics of measuring by the AARL method of R value is about 58%.
Redox alloy strainer (2) has the KDF-55 bed that obtains from KDF Fluid Systems Inc.
The product that porous ceramic filter element (4) is purchased with product code Imperial Supercarb from Fairey Industrial Ceramics.Filter element has a shape hole usually, and this hole is that about 0.9 micron and overall porosity are about 65% by its maximum sized mean sizes.
Porous charcoal piece filter element (5) is the product that is purchased with product code CBC10 from Ametek Inc.
In redox alloy strainer (2) and activated charcoal filter (3), the weight ratio of redox alloy and gac is such, so that per 375 gram gacs provide 250 gram redox alloys.
With the tap water that pollutes with 2 liters/minute flow velocity by water purification system, entered and left the water sample of activated charcoal filter of the present invention.Because the zinc that redox alloy strainer discharges, the zinc concentration that enters the water of activated charcoal filter is about 1150 micrograms per litre, and the zinc concentration that leaves the water of activated charcoal filter is about 190 micrograms per litre.
Claims (27)
1. gac, the ash oontent of measuring by ASTM2866 is less than 1% and such zinc loading capacity is arranged, so that the strainers that 1.5 gram gacs are housed are adsorbed on the zinc that contains 3-25 mg/litre concentration in the water, and zinc concentration is dropped to below 3 mg/litre.
2. according to the gac of claim 1, wherein the zinc loading capacity of gac is such, and the strainers that 1.5 gram gacs consequently are housed are adsorbed on the zinc that contains 3-25 mg/litre concentration in the water, make the density loss of zinc in water below 1700 micrograms per litre.
3. according to the gac of claim 1, wherein the zinc loading capacity of gac is such, and the strainers that 1.5 gram gacs consequently are housed are adsorbed on the zinc that contains 3-25 mg/litre concentration in the water, makes the density loss of zinc in water to the 15-180 micrograms per litre.
4. gac, the ash oontent of measuring by ASTM2866 is less than 1% and such zinc loading capacity arranged, so that when the water that contains 0.1-10 mg/litre chlorine with the 0.5-4 liter/minute flow velocity when sending into redox alloy strainer and activated charcoal filter successively, the strainers that contain 1.5 gram gacs adsorb basically and 1 strainer that restrains the redox alloy of zinc and copper is housed is discharged into zinc in the water.
5. according to each gac in requiring above-mentioned power yesterday, wherein it is a particulate state.
6. according to the gac of claim 5, wherein it is a sheet.
7. according to the gac of claim 6, wherein the mean thickness of active carbon plate is the 0.02-0.2 millimeter, is that 0.2-0.6 millimeter and length-to-diameter ratio are 20: 1 to 10: 3 by its maximum sized mean particle size.
8. each gac in requiring according to aforesaid right, wherein the iodine number of gac is 1000-1400 milligram/gram.
9. each gac in requiring according to aforesaid right, wherein the specific surface area of measuring by nitrogen BET thermoisopleth is a 1000-1400 rice
2/ gram.
10. each gac in requiring according to aforesaid right, wherein the pore volume of measuring by ASTM3838 is 0.5-0.7 milliliter/gram.
11. each gac in requiring according to aforesaid right, wherein the hardness of measuring by ASTM3802 is 90-100%.
12. each gac in requiring according to aforesaid right, wherein the golden carrying capacity of measuring by the AARL method of K value is 15-30 milligram gold/gram.
13. each gac in requiring according to aforesaid right, wherein the golden kinetics of measuring by the AARL method of R value is 45-75%.
14. strainer that each gac among the claim 1-13 is housed.
15. the activated charcoal filter of the requirement 14 of having the right and the water purification system that is positioned at the redox alloy strainer of activated charcoal filter upstream, in use water passes through activated charcoal filter then at first by redox alloy strainer in order.
16. according to the water purification system of claim 15, wherein the redox alloy is the alloy of zinc and copper.
17. according to the water purification system of claim 15 or 16, wherein redox alloy strainer and activated charcoal filter are combined in the single filter core.
18. according to each water purification system among the claim 15-17, wherein the weight ratio of redox alloy in redox alloy strainer and the activated charcoal filter and gac is 1: 1 to 1: 10.
19. according to the water purification system of claim 18, wherein the weight ratio of redox alloy in redox alloy strainer and the activated charcoal filter and gac is 1: 1.4 to 1: 1.6.
20. according to each water purification system among the claim 15-19, wherein also has the porous ceramic filter element, it is positioned at the downstream of activated charcoal filter and links to each other with its fluid flow, so that the activated charcoal filter water of the discharging ceramic filter element of sending into and flow through in use.
21. according to the water purification system of claim 20, wherein a part of hole in the ceramic component is occupied by water-insoluble particulate fraction.
22. method that purifies chloride water, described method comprises the strainer of the redox alloy of water by zinc and copper are housed, so that remove dechlorination basically and be that the zinc of 3-25 mg/litre is discharged in the water concentration, to generate then contain zinc water by the ash content measured by ASTM2866 less than 1% activated charcoal filter, drop to below 3 mg/litre to cause zinc concentration.
23. according to the method for claim 22, wherein gac drops to below 1700 micrograms per litre zinc concentration.
24. according to the method for claim 22, wherein gac makes zinc concentration drop to the 15-180 micrograms per litre.
25. a purification contains the method for the water of 0.1-10 mg/litre chlorine, described method comprises the strainer of the redox alloy of water by zinc and copper are housed, so that be discharged in the water except that dechlorination and with zinc basically, to generate then contain zinc water by the ash content measured by ASTM2866 less than 1% activated charcoal filter so that remove basically by redox alloy strainer and be discharged into zinc in the water.
26. according to each method among the claim 22-25, wherein the water that activated charcoal filter is discharged is sent into the porous ceramic filter element then.
27. according to each method among the claim 22-25, wherein with water with the 0.5-4 liter/minute flow velocity send into redox alloy strainer and activated charcoal filter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/GB2000/000007 WO2001049612A1 (en) | 2000-01-07 | 2000-01-07 | Water purification filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1424983A true CN1424983A (en) | 2003-06-18 |
Family
ID=9883105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00818582A Pending CN1424983A (en) | 2000-01-07 | 2000-01-07 | Water purification filter |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1252101A1 (en) |
| CN (1) | CN1424983A (en) |
| AU (1) | AU1989600A (en) |
| IL (1) | IL150535A0 (en) |
| NO (1) | NO325186B1 (en) |
| WO (1) | WO2001049612A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291043A (en) * | 2016-12-20 | 2019-09-27 | 诺达克水过滤系统公司 | Purification device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7427355B2 (en) * | 2004-05-14 | 2008-09-23 | Yiu Chau Chau | Water treatment unit for bottle or pitcher |
| WO2007118426A1 (en) * | 2006-04-13 | 2007-10-25 | Dawei Zhang | A method and an equipment for treating waste water |
| AT516361B1 (en) * | 2014-10-01 | 2020-09-15 | Deltacore Gmbh | Device for filtering water |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063893A (en) * | 1976-09-13 | 1977-12-20 | Stoulil Arthur C | Dye stabilized trisodium phosphate cleaning solution |
| US5156335A (en) * | 1989-09-05 | 1992-10-20 | Smith Michael L | Filtered drinking straw |
| US5368754A (en) * | 1990-11-01 | 1994-11-29 | Texaco Inc. | Method for stripping contaminants from wastewater |
| US5443735A (en) * | 1991-09-12 | 1995-08-22 | Pall Corporation | Method and device for inhibiting bacterial growth on sorbent media |
| US5466378A (en) * | 1993-05-11 | 1995-11-14 | Calgon Carbon Corporation | Oxidized activated carbon for the control of pH and alkalinity in water treatment applications |
| DE4416576C1 (en) * | 1994-05-11 | 1995-11-09 | Braeutigam Joerg | Spherical active carbon prodn. |
| US5726118A (en) * | 1995-08-08 | 1998-03-10 | Norit Americas, Inc. | Activated carbon for separation of fluids by adsorption and method for its preparation |
| ES2237093T3 (en) * | 1998-07-09 | 2005-07-16 | Clear Water 42 Holding Asa | SYSTEM AND METHOD OF WATER PURIFICATION. |
-
2000
- 2000-01-07 WO PCT/GB2000/000007 patent/WO2001049612A1/en not_active Application Discontinuation
- 2000-01-07 EP EP00900230A patent/EP1252101A1/en not_active Ceased
- 2000-01-07 CN CN00818582A patent/CN1424983A/en active Pending
- 2000-01-07 AU AU19896/00A patent/AU1989600A/en not_active Abandoned
- 2000-01-07 IL IL15053500A patent/IL150535A0/en unknown
-
2002
- 2002-07-01 NO NO20023184A patent/NO325186B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291043A (en) * | 2016-12-20 | 2019-09-27 | 诺达克水过滤系统公司 | Purification device |
Also Published As
| Publication number | Publication date |
|---|---|
| NO325186B1 (en) | 2008-02-11 |
| IL150535A0 (en) | 2003-02-12 |
| NO20023184D0 (en) | 2002-07-01 |
| WO2001049612A1 (en) | 2001-07-12 |
| NO20023184L (en) | 2002-08-15 |
| AU1989600A (en) | 2001-07-16 |
| EP1252101A1 (en) | 2002-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101876931B1 (en) | Ceramic filter for treating contaminated water and the manufacturing method thereof | |
| US20220023825A1 (en) | Filtering medium for fluid purification | |
| CN1821108A (en) | Poly metal cluster water purifying material and its preparing method and use | |
| CN1835802A (en) | Device for treating water using iron-doped iron exchangers | |
| JP5970453B2 (en) | Iron-copper composition for fluid purification | |
| WO2002053262A1 (en) | Purification media | |
| CN1226195C (en) | Activated carbon filter, ceramic filter element and water purification system | |
| CN1424983A (en) | Water purification filter | |
| KR20110080717A (en) | A water purifier for portable | |
| JP4182477B2 (en) | Arsenic removal method | |
| Rahbar Shahrouzi et al. | Investigation of effective parameters on adsorption of amoxicillin from aqueous medium onto activated carbon | |
| KR200399986Y1 (en) | Water purification filter media | |
| KR20210039134A (en) | Air purification system for apartment houses | |
| ZA200205267B (en) | Water purification filter. | |
| Jun et al. | Comparative Analysis of the Feasibility of Oil PalmBiomass and Factory Tea Waste as Biosorbent for Copper Ions Removal from Wastewater | |
| RU2117518C1 (en) | Water-treatment filter material | |
| KR20030065748A (en) | Filter comprising illite for water treating | |
| JPWO2015132860A1 (en) | Adsorbent for water treatment, production method thereof, water treatment device, cartridge for water treatment device, and water treatment method | |
| CN102689938A (en) | 13x molecular sieve water purifying device for purifying heavy metal in drinking water | |
| CN1867270A (en) | Tobacco smoke filter | |
| CN109650621A (en) | A kind of water purifier efficiently removing removing heavy metals | |
| WO2001083376A2 (en) | Method of reducing contaminants in drinking water | |
| CA2649603A1 (en) | Water filter materials, corresponding water filters and processes for using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |