CN1212982C

CN1212982C - High adsorptivity, photo catalytic and mineralization treatment unit for drinking water

Info

Publication number: CN1212982C
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: 2005-08-03
Anticipated expiration: 2022-11-22
Also published as: CN1410373A

Abstract

The present invention relates to a photocatalysis and mineralization treatment device for direct drinking water with high adsorption performance. The present invention comprises a plastic outer shell 3 a zeolite or vermiculite and activated carbon mixing filter 7, a magnet filter 8, a water inlet, an activated charcoal filter 9, an activated carbon and medical stone mixing filter 10, a medical stone filter 11, a water outlet, a heating and cooling device 12, a metal inner shell 4, a silica glass container 6, an ultraviolet lamp 1 and a photocatalysis device, wherein the zeolite or vermiculite and activated carbon mixing filter 7, the magnet filter 8, the water inlet, the activated charcoal filter 9, the activated carbon and medical stone mixing filter 10, the medical stone filter 11, the water outlet and the heating and cooling device 12 are arranged inside the plastic outer shell 3; the silica glass container 6 is arranged inside the metal inner shell 4; the ultraviolet lamp 1 is arranged inside the silica glass container 6; fiber material 5 of which the surface has a photochemical catalyst having high absorption performance is filled between the metal inner shell 4 and the outer wall of the silica glass container, and the photocatalysis device is composed of the fiber material 5; all the devices are connected into integration through communication pipes. Running water enters the photocatalysis and mineralization treatment device from the water inlet and is filtered by activated carbon, magnets, zeolite, etc., input into the photocatalysis device and sterilized by ultraviolet light; after being treated in the mode of photocatalysis, the running water is mineralized by medical stones, and thus, mineralized water which reaches drinking standards is obtained. The present invention has the advantages of high efficiency and low cost, and is applicable to extensive users.

Description

Adsorptivity photochemical catalysis, mineralising direct-drinking water handler

Technical field

The present invention relates to adopt adsorptivity composite Ti O ₂Photocatalyst and solid support material, the adsorptivity 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 adsorptivity photochemical catalysis, mineralising direct-drinking water handler simultaneously.

Reaching adsorptivity 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 adsorptivity 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 absorptive photocatalyst, this photocatalyst is connected on the pipeline between magnetite filter and gac and the medical stone mixing filter, the filamentary material of described adsorptivity photocatalyst material 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 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 fibrous carrier body is glass fibre, sapphire whisker, mullite fiber or charcoal fiber.

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

Adsorptivity photochemical catalysis of the present invention, mineralising direct-drinking water handler, there is the filamentary material of absorptive 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 absorptive 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 adsorptivity, 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 adsorptivity photochemical catalysis, mineralising direct-drinking water processor structure synoptic diagram.

Fig. 2 is absorptive 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 absorptive 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 adsorptivity 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 absorptive 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, by the unicom pipeline input adsorptivity composite Ti O is housed ₂In the quartz container 6 of photochemical catalysis glass fibre, by UV-light to direct-drinking water filter, sterilization, photocatalysis treatment, water enters 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 then, directly reaches standard for drinking.

Used adsorptivity 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 absorptive photocatalyst to form, photocatalyst is connected on the pipeline between magnetite filter (8) and gac and the medical stone mixing filter (10), and the filamentary material of described adsorptivity photocatalyst material (5) 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 that rutile transition layer C and fibrous carrier body D superpose successively and constitute, described composite Ti O ₂Oxide compound and TiO for Fe or Sn metallic element ₂Matrix material.

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