CN1410373A

CN1410373A - High adsorptivity, photo catalytic and mineralization treatment unit for drinking water

Info

Publication number: CN1410373A
Application number: CN 02147715
Authority: CN
Inventors: 董学斌; 熊先立
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Science and Engineering WUSE; Wuhan University of Technology WUT
Priority date: 2002-11-22
Filing date: 2002-11-22
Publication date: 2003-04-16
Anticipated expiration: 2022-11-22
Also published as: CN1212982C

Abstract

A high-adsorbability treater for photocatalyzing and mineralizing the drinking water is composed of plastic shell, zeolite (or vermiculite) and activated carbon mixed filter, magnetite filter, activated carbon filter, activated carbon and Chinese medicinal stone mixed filter, Chinese medicinal stone filter, heater, cooler, metallic internal shell, quartz glass container, ultraviolet lamp in the said quartz glass container, and photocatalyzer consisting of high-adsorbability catalyst and fibre. Its advantages are high efficiency and low cost.

Description

High absorbability photochemical catalysis, mineralising direct-drinking water handler

Technical field

The present invention relates to adopt high absorbability composite Ti O ₂Photocatalyst and solid support material, the high absorbability photochemical catalysis, the mineralising direct-drinking water handler that combine with ultra-violet lamp and various mineralized water processing unit.

Background technology

The principle of utilizing photocatalysis technology directly to handle drinking public water supply is: when utilizing semiconductor light-catalyst by energetic charges-electronics that ultraviolet excitation produced-hole, in the presence of oxygen or water, make the organic and inorganic particulate, impurity, photoxidation, photochemical catalysis, photoreduction, the light mineralising that are adsorbed on photocatalyst surface become harmless product C O simultaneously ₂, H ₂O, H ₂, N ₂Deng or other intermediate product.

TiO ₂Be present applied research photocatalyst the most widely, can make nontoxic foodstuff additive, Ti ⁴⁺Be the lower toxicity material, do not have tangible cumulative function, no mutagenicity, chronic toxicity activity are 1.08mg/L.The drinking water sources water hygiene standard of China is newly augmented " Ti ⁴⁺The index safe level be 0.1mg .L ".TiO ₂Chemical property very stable, in the photoresponse process, be difficult for being dissolved into Ti4+.Solvability impurity in the tap water is higher, but mix that insoluble impurity number is few, gac, medical stone, vermiculite, zeolite etc. be all to the dissolved impurity in the tap water, dissolved impurity, particularly heavy metal ion etc. all do not have adsorption preferably.For ultraviolet rays such as the microorganism that exists in the water, bacterium, viruses it is had certain ability of killing, but water there are certain interception, sorption, UV-light to be difficult for water is carried out advanced treatment to ultraviolet light.Various direct-drinking water handler in the market is a lot, but few photocatalysis technology that adopts, and major cause is that (1) photochemical catalysis has certain degree of difficulty at present practicability technical elements.(2) for TiO ₂Deng photocatalyst material light there is receptivity preferably, but to no obvious adsorptive poweies such as the organic fine particles that should carry out photocatalysis treatment, inorganic particles, organic molecule, inorganic molecules.When organic and inorganic foreign matter content concentration is not high in tap water, just greatly reduce photocatalysis efficiency.(3) in liquid-solid photochemical catalysis practical technique,, generally need to adopt metallic substance, thereby increased application cost because of photochemical catalysis has very strong Degradation to organic class material.

In the general tap water that uses, owing to contain a spot of microorganism and dissolved impurity, simultaneously in pipe-line transportation, owing to reasons such as corrosion increase many heavy metal particles, pollution substances such as germ should not directly be drunk, need degree of depth sterilization, the element to the human body beneficial is added in sterilization, and these are that general straight drink machine is unexistent at present.

Summary of the invention

The objective of the invention is subject matter at present application photocatalysis technology existence, providing a kind of can have better adsorptive power, promote photocatalysis efficiency, reduce manufacturing cost, simple in structure the impurity in the water simultaneously in photochemical catalysis, has multi-functional high absorbability photochemical catalysis, mineralising direct-drinking water handler simultaneously.

Reaching high absorbability photochemical catalysis, the mineralising direct-drinking water handler of the object of the invention, is that general mineralising direct-drinking water handler is improved, increases high absorbability light catalytic purifying function.

Direct-drinking water handler of the present invention specifically comprises shell, water-in and activated carbon filter, the magnetite filter, gac and medical stone mixing filter, medical stone filter, water outlet and heating water cooler, above-mentioned each device links to each other by closed tube and is loaded in the shell, tap water enters from water-in and activated carbon filter, through the magnetite filter, gac and medical stone mixing filter, medical stone filter, water outlet and heating water cooler flow out, characteristics are that this water treatment machine also comprises by metal inner casing and the quartz container that fills in the metal inner casing, ultra-violet lamp in the quartz container, fill between metal inner casing and the quartz container outer wall, the photocatalyst that the surface is made up of the filamentary material of high absorbability photocatalyst, this photocatalyst are connected on the pipeline between magnetite filter and gac and the medical stone mixing filter.

Described direct-drinking water handler also comprises zeolite or vermiculite and gac mixing filter, and this zeolite or vermiculite and gac mixing filter are connected on the pipeline between magnetite filter and the photocatalyst.

Described direct-drinking water handler, there is the filamentary material of high absorbability photocatalyst material on its described surface, is by composite Ti O ₂The active carbon layer A of volume content＜50%, composite Ti O ₂The active carbon layer B of volume content＞50%, the TiO of nano thickness ₂The filamentary material (referring to Fig. 2) that rutile transition layer C and fibrous carrier body D superpose successively and constitute.

Described fibrous carrier body is glass fibre, sapphire whisker, mullite fiber, charcoal fiber.

The used starting material of the present invention are the commercially available material, composite Ti O ₂Oxide compound and TiO for Fe, Sn metallic element ₂Matrix material.

High absorbability photochemical catalysis of the present invention, mineralising direct-drinking water handler, there is the filamentary material of high absorbability photocatalyst on the surface of being adopted, because of gac and the photochemical catalysis composite Ti O that adds ₂Between composite bed and filamentary material body nano thickness TiO is arranged ₂The rutile transition layer is so can form preferably bonding strength, adsorptivity and photocatalysis efficiency preferably preferably.

Because of there is the filamentary material of high absorbability photocatalyst on the surface, network-like being distributed in the photochemical catalysis container increased and the contacting of flowing water, thereby improved adsorptivity and photocatalysis efficiency to impurity in the water.

In the photochemical catalysis of this high absorbability, the mineralising direct-drinking water handler, water-in and activated carbon filter, magnetite filter, gac and medical stone mixing filter, photocatalyst, zeolite or vermiculite and gac mixing filter, medical stone filter, water outlet and heating water cooler are unit independently separately, can adopt connecting mode easily, as the formula structure of meeting and discussing is coupled to unified multi-functional body, is convenient to regulate increase and decrease user required function cell cube.

Description of drawings

Fig. 1 is high absorbability photochemical catalysis, mineralising direct-drinking water processor structure synoptic diagram.

Fig. 2 is high absorbability photocatalyst and carrier fibre integrated structure synoptic diagram.

Label implication among Fig. 1: 1 ultra-violet lamp, 2 seals, 3 shells, 4 metal inner casings, there is the filamentary material of high absorbability photocatalyst on 5 surfaces, 6 quartz containers, 7 zeolites or vermiculite and gac mixing filter, 8 magnetite filters, 9 water-ins and activated carbon filter, 10 gacs and medical stone mixing filter, 11 medical stone filters, 12 water outlets and heating water cooler.

A is composite Ti O among Fig. 2 ₂The active carbon layer of volume content＜50%, B are composite Ti O ₂The active carbon layer of volume content＞50%, C are the TiO of nano thickness ₂Rutile transition layer, D are the fibrous carrier body.

Embodiment

The example structure of high absorbability photochemical catalysis of the present invention, mineralising direct-drinking water handler as shown in Figure 1.This direct-drinking water handler comprises plastic casing 3 and the zeolite or vermiculite and gac mixing filter 7, magnetite filter 8, water-in and activated carbon filter 9, gac and medical stone mixing filter 10, medical stone filter 11, water outlet and the heating water cooler 12 that are loaded in the plastic casing 3, and by aluminum metal inner casing 4 and be loaded on quartz container 6 in the aluminium inner casing 4, in the quartz container 6 ultra-violet lamp 1,, fill between aluminium inner casing 4 and quartz container 6 outer walls surperficial photocatalyst of forming by the filamentary material 5 of high absorbability photocatalyst.Each above-mentioned device is connected by closed tube.Tap water enters from water-in and activated carbon filter 9, through magnetite filter, zeolite and activated carbon filter, be equipped with in the quartz container 6 of high absorbability composite Ti O2 photochemical catalysis glass fibre by the unicom pipeline input, by UV-light to direct-drinking water filter, sterilization, photocatalysis treatment, then water enter gac and medical stone mixing filter 10, and after medical stone filter 11 filters mineralisings, on demand water is carried out cold and hot working, directly reach standard for drinking.

Used high absorbability composite Ti O ₂The photochemical catalysis glass fibre, be from the surface to the glass fibre body, composite Ti O is arranged ₂The active carbon layer A of volume content 30%, composite Ti O ₂The active carbon layer B of volume content 70% and the TiO of nano thickness ₂The glass fibre of rutile transition layer C.Its composite Ti O ₂For containing weight 2% tin-oxide and 98%TiO ₂Composite Ti O ₂

Claims

1, a kind of mineralising direct-drinking water handler, comprise shell (3), water-in and activated carbon filter (9), magnetite filter (8), gac and medical stone mixing filter (10), medical stone filter (11), water outlet and heating water cooler (12), each above-mentioned device links to each other by closed tube and is loaded in the shell (3), tap water enters from water-in and activated carbon filter (9), through the magnetite filter, gac and medical stone mixing filter, medical stone filter, water outlet and heating water cooler flow out, it is characterized in that this water treatment machine also comprises by metal inner casing (4) and is loaded on quartz container (6) in the metal inner casing (4), ultra-violet lamp (1) in the quartz container (6), fill between metal inner casing (4) and quartz container (6) outer wall, the photocatalyst that the surface has the filamentary material (5) of high absorbability photocatalyst to form, photocatalyst are connected on the pipeline between magnetite filter (8) and gac and the medical stone mixing filter (10).

2, direct-drinking water handler as claimed in claim 1 is characterized in that also comprising zeolite or vermiculite and gac mixing filter (7), and this zeolite or vermiculite and gac mixing filter (7) are connected on the pipeline between magnetite filter (8) and the photocatalyst.

3, direct-drinking water handler as claimed in claim 1 is characterized in that it is by composite Ti O that there is the filamentary material (5) of high absorbability photocatalyst material on described surface ₂The active carbon layer A of volume content＜50%, composite Ti O ₂The active carbon layer B of volume content＞50%, the TiO of nano thickness ₂The filamentary material that rutile transition layer C and fibrous carrier body D superpose successively and constitute.

4, direct-drinking water handler as claimed in claim 3 is characterized in that described fibrous carrier body is glass fibre, sapphire whisker, mullite fiber, charcoal fiber.