CN2697076Y - Depth purifying adsorbing filter of active carbon powder coating for sewage treatment - Google Patents

Abstract

The utility model relates to an advanced purifying adsorbing filter with active carbon powder coating for sewage treatment, which comprises a filter tank 1 with a top joint 4 and a bottom joint 5, wherein a grid beam 7 on the lower part of a cavity of the filter tank 1 is provided with a filter-sand layer 8 for adsorbing active carbon powder, an outlet of a device 2 for coating active carbon powder slurry is communicated with the filter tank 1 through a water pump 3 and a slurry conveying pipe 6, and a material outlet of the slurry conveying pipe 6 can be communicated with the cavity of the filter tank 1 at one or more than one of appropriate positions of the top, the bottom and the middle part of the filter tank 1. A material distributing pipe 14 can also be arranged in the filter tank 1 so that the material outlet of the slurry conveying pipe 6 is communicated with the material distributing pipe 14. The utility model can remove suspended matter and dissolve and semi-dissolve organic matter and various dyeing matter simultaneously and can kill fungi. The utility model is suitable for the subsequent advanced treatment of various industrial organic wastewater and composite sewage and for feedwater micro-processing technology.

Description

The active carbon powder profile depth that is used for sewage disposal purifies adsorption filtration device

Technical field

The utility model relates to sewage disposal device, is meant that further the active carbon powder profile depth purifies adsorption filtration device.

Background technology

Activated carbon granule absorption filter bed in the sewage disposal suite of equipment of prior art as shown in Figure 5, it comprises that water-in 10 is arranged at the top and the filter tank body 9 of water outlet 11 (this water-in 10 and water outlet 11 are respectively water outlet and water-in when back flushing) is arranged at the bottom, these filter tank body 9 bottoms have gac to support rack 12, and activated carbon granule layer 13 is positioned at described rack 12 tops.This device is widely used in last technique unit in the plumbing treatment project, but only finds several base devices are arranged in normal operation in the engineering of water treatment large-scale giving, and remaining is in entirely stops useless state.

For the draining treatment project, after various wastewater from chemical industry add the biochemical process processing through materialization, in the water remaining being difficult to degrade again or be difficult to some organic pollutant that materialization removes, some metal ion, some intoxicating materials, some cause volatile poison gas or the like in biological mutagenicity material, the water, the activated carbon granule filter bed generally can also be removed by active adsorption, has still good effect.

But in, the water treatment of low capacity can not be suitable for, this is because the activated carbon granule filtrate, life cycle is short, simple acidleach, alkali cleaning, steam is washed and the attached regeneration of vacuum wash-out, recover active little, trivial operations, the working cost height, facility investment is big, repeated regeneration tens times, will change gac material filtrate bimester of January, expend too big, its only operation several days when checking and accepting, but deep purifying is removed CODcr, also can remove colourity, just when the sand filter bed use, only remove the suspended substance in the water later on; For large-scale engineering of water treatment, can adopt the extraordinary regeneratory furnace regeneration techniques of gac, but invest especially bigly, working cost is still too high, and medium and small format technology does not reach a standard yet.

A gac material filter bed is selected too strong to the absorption of pollutent remaining in the water, some pollution substance in the water almost completely there is not adsorptive power, or clearance is too low, this is because the micropore form of its particle surface layer rich and variedization inadequately, can not adapt to the microscopic characteristics of Protean sorbent material and adsorbate, adsorption medium composition.

Though the micropore cubic capacity of a gac material filter bed is very big, and is very fast saturated easily, and in case saturated, just " counter telling " immediately makes effluent quality worse.This is because the heat transfer coefficient of activated carbon granule and water is big inadequately, the heat energy that (moment) absorbs and the material of transferring the pollution was discharged by micro-porous adsorption moment as quick as thought, adsorbate is by " kapillary ", the magnetism that obtains can not overcome self " the Blang's repulsive force " to " micropore " fully, causing adsorbate is that pollution substance only rests on the micropore ingress, and obstruction " traffic " is had a greatly reduced quality the effective apearture cubic capacity, many pollution substances that are adsorbed do not take off surely fully, just be in to be adsorbed and maybe will be adsorbed and between not being adsorbed as yet, promptly be in false absorption " saturated " state, actual also unsaturation, only be that pollution substance has wrapped up activated carbon granule, the heat energy (heat of adsorption) of its absorption accumulation can not be shifted outside the system that passes out; Be in " false absorption state of saturation " pollution substance on the contrary and regain heat energy again, soluble in water again after it just obtains certain " Blang can ", polluted-water more.

The utility model content

The technical problems to be solved in the utility model is, at the defective that prior art exists, provide a kind of active carbon powder profile depth that is used for sewage disposal to purify adsorption filtration device, utilize the characteristic of active carbon powder, improve the serviceability of filtration unit, to overcome the deficiencies in the prior art.

Technical solution of the present utility model is, the described active carbon powder profile depth that is used for sewage disposal purifies the filter tank that adsorption filtration device includes top interface and bottom interface, this filter tank inner chamber bottom is provided with the supporting network screen work, its constructional feature is, be the filter sand layer of adsorption activity carbon powder on the described supporting network screen work, the outlet of active carbon powder slurry application device is through water pump and slurry transport pipe and described filter tank intracavity inter-connection.

Below make and further specifying.

Referring to Fig. 1 and Fig. 2, the utility model includes the filter tank 1 of top interface 4 and bottom interface 5, this filter tank 1 inner chamber bottom is provided with supporting network screen work 7, its constructional feature is, be the filter sand layer 8 of adsorption activity carbon powder on the described grid beam 7: referring to Fig. 1, the outlet of active carbon powder slurry application device 2 is through the intracavity inter-connection of water pump 3 and slurry transport pipe 6 and described filter tank 1.The discharge port of described slurry transport pipe 6 can be at the top of described filter tank 1, the bottom, more than appropriate location, the middle part thrin or with this filter tank 1 intracavity inter-connection.Also can cloth tube 14 be set in filter tank 1 and the discharge port of described slurry transport pipe 6 is communicated with this cloth tube 14.Described cloth tube 14 is for having the prior art structure of some discharging apertures vertically on the tube wall; Install in the described active carbon powder slurry application device 2 by motor-operated stirring rake or employing hand mixing mode, active carbon powder can be added the water stirring is can be by the slurry of water pump conveying; The sand fineness scope of the filter sand layer of described adsorption activity carbon powder can be 0.1-8mm, can adopt agglomerate, loadstone, magnetic conduction filtrate, artificial pottery etc. and other suitable sand grains.

Referring to Fig. 1, the utility model in actual use, when the discharge port of described slurry transfer lime 6 be arranged on filter tank 1 in, top (referring to Fig. 2) and when being positioned at described supporting network screen work 7 tops, the top interface 4 of filter tank 1 and bottom interface 5 are respectively original water inlet and filtering water out in the adsorption filtration working process, and in backwash process this interface 4,5 are respectively wash-down water outlet and wash-down water import, and the top interface 4 of promptly described filter tank 1 and bottom interface 5 are consistent with the air-water backwashing filter bed of the mode of connection (syndeton) of external system and water filtration process thereof and backwash process and routine; Referring to Fig. 4, when the discharge port of slurry transfer lime 6 was located at filter tank 1 bottom and is positioned at described supporting network screen work 7 belows, 5 of top interface 4 and bottom interface were respectively filtering water out and original water inlet; And in backwash process, this interface 4,5 is respectively the outlet of wash-down water import and wash-down water, and it is also consistent with the routine techniques mode with operating process to install other syndeton.

Principle of design of the present utility model is, the specific surface area of active carbon powder is thousands of times of activated carbon granule, and micropore volume is hundreds of times of the latter, and its absorption total " potential energy " is equivalent to several tons of activated carbon granules for the 1kg activity charcoal powder.Active carbon powder is cheap, and once when its adsorption rate descended, also saturated far away just " eliminating " was coated with active carbon powder more again in use.

Active carbon powder can also be planted the carrier of biological enzyme and can carry out various modifications as some.

Active carbon powder can also form three-dimensional filtering membrane for the cellulosic carrier of some ionic.

The utility model working process is, for each cycle of operation, after recoil water finishes, before filtering beginning, starting water pump 3 is sent the active carbon powder slurry that has stirred in the described application device by slurry transport pipe 6, coat the sand grain surface of filter sand layer 8, this process can be finished in 3-15 minute.Begin the water filtration process then.

The saturated back of filter bed retaining power (the micro-porous adsorption ability is unsaturation also), pressure difference signal or time signal reaction, automatic or manual operation enters air-water backwashing.

Not near the active carbon powder that has adsorbed pollution substance saturatedly, wash in a pan out filter bed with backwashing water and be back to former water preliminary sedimentation equalizing tank as yet, reach solid-liquid separation by other process sections.

Afterwards another work period, so go round and begin again.

The water filtration process is the same with conventional air-water backwashing filter bed with backwash process.

The utility model has utilized such basic parameter: 1kg active carbon powder (diameter 1～3 μ m) surface-area is equivalent to 2.5～3 tons of activated carbon granules (diameter 3mm, long 5～8mm) surface-area; The active adsorption micropore cubic capacity of 1kg active carbon powder is equivalent to the active adsorption cubic capacity of 0.5 ton of activated carbon granule.Though the per 100 tons of water of this technical finesse have only consumed 0.5～0.8kg active carbon powder, its validity is with to have consumed 0.4～0.6 ton of activated carbon granule identical.

Former water is during by this filter tank 1, and suspended matter SS is reduced to≤1mg/L by 40mg/L in the water, and dissolubility pollutant matter CODcr removes the about 100mg/L～120mg/L of relative value in the water, and clearance can reach 60～80%.

As known from the above, the utility model is that a kind of active carbon powder profile depth that is used for sewage disposal purifies adsorption filtration device, it has the function of removing ss suspended solid and solvability and half dissolved organic matter and various coloring matters simultaneously, the function of sterilization sterilization, be adapted to various industrial organic waste waters and composite wastewater through after various biochemistry add materialization or pass through comprehensive materialization or biochemical treatment separately, carry out the advanced treatment of high water quality requirement again, in the hope of reaching the purpose of general industrial tap water reuse and middle water reuse, or reach high-quality discharging purpose.

This device little pollution treatment process that also is adapted to feed water.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram of a kind of embodiment of the utility model (discharge port of slurry transport pipe 6 is connected on filter tank 1 top and middle part);

Fig. 2 is the vertical sectional structure of a kind of embodiment of filter tank shown in Fig. 11;

Fig. 3 is the one-piece construction synoptic diagram of another embodiment of the utility model (discharge port of slurry transport pipe 6 is connected on filter tank 1 bottom);

Fig. 4 is the vertical sectional structure of a kind of embodiment of filter tank 1 shown in Figure 3;

Fig. 5 is the structural representation of prior art activated carbon granule adsorption filtration bed.

In described figure:

1-filter tank,

2-active carbon powder slurry application device,

3-water pump, 4-top interface,

5-bottom interface, 6-slurry transport pipe,

7-supporting network screen work, the filter sand layer of 8-adsorption activity carbon powder,

9-filter tank body, 10-water-in,

11-water outlet, 12-gac supports rack,

13-activated carbon particle layer, 14-cloth tube.

Embodiment

The utility model device according to Fig. 1 and Fig. 2 and said structure, the designing treatment sewage quantity is 0.5 ton/hour, filter tank 1 diameter is 400mm, height is 2400mm, filter sand layer 8 thickness 1200mm, the discharge port of slurry transport pipe 6 is communicated with the cloth tube 14 that is arranged on filter sand layer 8 middle and upper part, supporting network screen work 7 is that water-in, bottom are water outlet and back flushing water-in from bottom 200mm, top, whipping appts 2 is coated with active carbon powder in jar 1, gac end granularity 1-3 μ m, back-purge system regularly starts back flushing.

Filter operating pressure: 0.05～0.15Mpa,

Phase active carbon powder or modified active carbon powder dosage are 100～200 grams weekly.The cycle of operation 〉=24 hour,

Backwashing time 7～10min, backwash water rate 3～4%.

Claims (3)

1, a kind of active carbon powder profile depth that is used for sewage disposal purifies adsorption filtration device, include the filter tank (1) of top interface (4) and bottom interface (5), this filter tank (1) inner chamber bottom is provided with supporting network screen work (7), it is characterized in that, be the filter sand layer (8) of adsorption activity carbon powder on the described grid beam (7), the outlet of active carbon powder slurry application device (2) is through the intracavity inter-connection of water pump (3) and slurry transport pipe (6) and described filter tank (1).

2, the active carbon powder profile depth that is used for sewage disposal according to claim 1 purifies adsorption filtration device, it is characterized in that, the discharge port of described slurry transport pipe (6) at the top of described filter tank (1), the bottom, more than appropriate location, the middle part thrin or with this filter tank (1) intracavity inter-connection.

3, the active carbon powder profile depth that is used for sewage disposal according to claim 1 purifies adsorption filtration device, it is characterized in that, cloth tube (14) is set in filter tank (1) and the discharge port of described slurry transport pipe (6) is communicated with this cloth tube (14).

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