CN1275539A

CN1275539A - Water purifying method and equipment thereof

Info

Publication number: CN1275539A
Application number: CN 00112238
Authority: CN
Inventors: 郝波; 朱华东; 陈海忠; 吕伟清
Original assignee: ZHENGCHANG PHILIP WATER PURIFYING PROCESS COMPLETE EQUIPMENT CO Ltd LIYANG
Current assignee: ZHENGCHANG PHILIP WATER PURIFYING PROCESS COMPLETE EQUIPMENT CO Ltd LIYANG
Priority date: 2000-04-26
Filing date: 2000-04-26
Publication date: 2000-12-06
Anticipated expiration: 2020-04-26
Also published as: CN1162359C

Abstract

The present invention discloses a water purification treatment method integrating mixing, adding chemicals, flocculation, filtering and sterilization into one whole, and is characterized by that the chemicals-added and -mixed water to be treated flows into the continuously operating flocculation plant formed from pipeline collective struture to undergo the process of clocculation formation treatment, then filtered and disinfected by means of filter and disinfection equipment. As compared with existent technology, it is small in equipment volume, high in water treatment capacity and efficiency, low in flocculant dose, low in treatment cost and high in quality of water treatment.

Description

A kind of method for purifying water and device thereof

The present invention relates to a kind of water purification processing method and a kind of all-in-one-piece high-efficiency water purifying treatment device thereof.

Water purification processing method has varied, independent employing filter type is arranged, have adopt to filter and add disinfection way, at present to rivers, the high turbidity in lake and low temperature and low turbidity water water purification, more perfect water purification processing method all comprises steps such as mixing, flocculation sediment, filtration and sterilization at least, and this water that deals just may meet the direct drinking water water quality standard.And step of flocculation precipitation all adopts static mode, the water that has soon fully added flocculation agent places in the pond or in the container, make it in the quite a while, be in static or the slow-action state, in the meantime, the hydrolyzate of flocculation agent and the colloidalmaterial in the water, suspended matter fully react generation particle flocculent substance and are deposited to pond or container bottom, discharge again.There is following weak point in such method for purifying water: 1. pond that occupation of land of needs is bigger or the bigger container of volume, invest bigger; 2. because of adopting the coprecipitation mode of static state or slow-action, need one long flocculation sediment period, directly influence water treatment capacity and efficient; 3. need to add relatively large flocculation agent, processing cost is higher.

The monoblock type water-purification plant of realizing above-mentioned method for purifying water is then by frame, pump, chemicals dosing plant, mixing device, compositions such as flocculation sediment tube, strainer.During work, pump is evacuated to pending water in the device, chemicals dosing plant injects mixing device and water thorough mixing with flocculation agent, the water that mixed enters and carries out flocculation sediment in the flocculation sediment tube, the flocculation sediment treated water enters strainer again and filters, and the water after the filtration injects sterilizing agent by chemicals dosing plant again and carries out disinfection.The weak point that this device exists is: 1. need the flocculation sediment tube that volume is bigger, thereby device volume is big, manufacturing cost is higher, and the device movability is relatively poor; 2. water treatment capacity is lower; 3. need to use relatively large flocculation agent, processing cost height.

The object of the present invention is to provide a kind of water purification style, can continuously handle easily, improve water treatment capacity and efficient and reduce cost of water treatment water.

Another object of the present invention is to provide a kind of water-purification plant, make the volume of device littler, but the convenience of implement device move, and device can successively be handled to water, improve water treatment capacity and efficient and also reduce cost of water treatment.

The object of the present invention is achieved like this:

Method for purifying water, be made up of the following step: (1) is earlier with flocculation agent and pending water thorough mixing; (2) then the water of above-mentioned mixing is done continuous flow in a long pipeline, the colloidalmaterial in the flow process in flocculation agent hydrolyzate and the water, suspended matter fully react the bigger particle flocculent substance of generation; (3) water of convection current piping filters then, filters out above-mentioned particle flocculent substance; (4) then to the water disinfection.

Said flocculation agent is a sulfate composite aluminium salt.

In the said step (1), look the water quality situation and in water, add the pH value conditioning agent simultaneously.

In the said step (3), the water that process leaches the particle flocculent substance is again through activated carbon filtration, to remove the impurity such as peculiar smell, pigment and algae in the water.

In the said step (4), to hydromining with chlorine disinfectant or ultraviolet radiation disinfection mode.

Realize a kind of water-purification plant of above-mentioned method for purifying water, comprise frame, pump, chemicals dosing plant, mixing device, strainer, be connected with a flocculation plant between said mixing device and the strainer, said flocculation plant is made of pipeline assembly.

Said pipeline is a pipe.

Said flocculation plant is wound on the jacket casing support body by pipeline and constitutes.

Said pipeline is wound on the jacket casing support body 3 layers to 7 layers.

Said strainer is arranged on jacket casing support body inside.

Said pipeline is a plastic-al pipe.

Said chemicals dosing plant has three independently to store the agent chamber, and each storage agent chamber is equipped with a volume pump respectively.

Said filter top has the pipeline of an insertion filtering layer, and this pipeline connects with air compressor machine, and the bottom is provided with a sewage outlet and a water inlet, and the top is provided with a filtered water outlet and a rinse water import.

Compared with prior art, method for purifying water provided by the invention has the following advantages: 1. it is less to handle required site area or device volume, saves investment; 2. because of adopting the successive processing mode, water treatment capacity and efficient are higher; 3. adopt the flocculation mode of pipeline continuous flow, the flocculation agent hydrolyzate can fully react with colloidalmaterial, the suspended matter in the water in the quick flow process in longer pipe road, thereby the flocculation agent injected volume of whole water treatment procedure can reduce greatly, and processing cost is reduced.And water-purification plant provided by the invention has following advantage: 1. because of adopting the less flocculation plant of structure compact volume to replace the big flocculation sediment tube of volume of the prior art, so device compact overall structure, volume are less relatively, be easy to realize mobile, be specially adapted to open-air needs; 2. can make continuous purification to water and handle, water treatment capacity and efficient are higher; 3. can reduce the usage quantity of flocculation agent greatly, processing cost is reduced.

Below in conjunction with accompanying drawing embodiments of the invention are elaborated.

Fig. 1 is a method for purifying water step block diagram provided by the invention;

Fig. 2 is a water-purification plant current schema provided by the invention;

Fig. 3 is water-purification plant front view provided by the invention (a removal panel);

Fig. 4 is water-purification plant side-view provided by the invention (removing chemicals dosing plant, panel);

Fig. 5 is water-purification plant vertical view provided by the invention (a removal panel);

Fig. 6 partly cuts open figure for flocculation plant master in the water-purification plant provided by the invention looks;

Fig. 7 is a flocculation plant vertical view in the water-purification plant provided by the invention;

Fig. 8 is a water-purification plant middle filtrator master pseudosection provided by the invention.

Method for purifying water provided by the invention four steps that comprise mixing successively, flocculate, filter and sterilize, mixing step is that flocculation agent is injected mixing device and pending water thorough mixing, purpose enters in the water hydrolyzate of flocculation agent, colloidal solid is taken off surely separate out; Then the water of above-mentioned mixing is made flocculation treatment, be about to water and in a long pipeline, do continuous flow, at this continuous fast mobile in the quite a while, compositions such as the colloidalmaterial in flocculation agent hydrolyzate and the water, suspended substance further fully react and generate micro-floccule, the mutual perikinetic aggregation of these micro-floccules becomes bigger particle flocculent substance simultaneously, and keeps certain yardstick, degree of compactness and shear strength; The water of convection current piping carries out filtration treatment then, with above-mentioned particle flocculent substance filtering; At last to the water disinfection.In the concrete method, flocculation agent can use sulfate composite aluminium salt etc., in mixing step, visual water quality situation is added the pH value conditioning agent to water simultaneously in mixing device, filtration step can adopt cascade filtration, the first step is filtered the particle flocculent substance that flocculates and in the water outlet, and the second stage is activated carbon filtration, to remove peculiar smell, pigment and the algae substances in the water; Disinfect and to adopt chlorine disinfectant or ultraviolet radiation disinfection mode.

Water-purification plant provided by the invention is by frame 1, pump 2, chemicals dosing plant 3, mixing device 4, flocculation plant 5, strainer 6, air compressor machine 7, activated charcoal filter 8, ultraviolet disinfector 9; Compositions such as electrical control gear, said apparatus are installed on the frame in aggregates, so that move.Chemicals dosing plant is provided with three and independently stores the agent chamber separately, chlorinated product, flocculation agent, pH value conditioning agent are housed respectively, a

volume pump

10,11,12 is equipped with in each storage agent chamber, the storage agent chamber that chlorinated product, pH value conditioning agent wherein are housed connects with the mixing device pipeline by volume pump respectively, pump, mixing device, flocculation plant, strainer, activated charcoal filter, ultraviolet disinfector be pipeline connection successively then, air compressor machine then with the top attachment of strainer, be used for strainer is carried out air recoil regeneration cleaning.Wherein flocculation plant is made of a pipeline 13 assemblies, for making the flocculation plant compact construction, can use the soft pipe as plastic-al pipe one class, it is wound on the jacket casing support body 14 constitute, and pipeline generally twines 3 to 7 layers, to guarantee the length of pipeline.The total length of pipeline is by decisions such as flow velocity, Treatment Design abilities, and its final purpose is the time that allows water flow through therein should guarantee to reach the required sufficient time of water flocculation.For making apparatus structure compacter, make the internal diameter of jacket casing support body greater than the external diameter of strainer, like this, strainer can directly be placed on jacket casing support body inside, and from the appearance, strainer and flocculation plant are in aggregates.Strainer adopts the regenerated filtering material filter that can recoil, and the pipeline 15 that top center is inserted filtrate 20 directly connects with air compressor machine, and outlet at bottom is a water inlet for

recoil sewage outlet

16,17, and 18 are the filtered water outlet, and 19 is clear Xian's water inlet.Device working process provided by the invention and principle are as follows: at first pump is evacuated to pending water in the mixing device, by volume pump flocculation agent in the chemicals dosing plant and pH value conditioning agent are injected mixing device by suitable amount according to pending water quality situation then, through thorough mixing, hydrolyzate in flocculation agent and the pH value conditioning agent enters in the water, make water-borne glue body thing, suspended substances etc. take off surely separates out and forms micro-floccule, enter the long pipeline of flocculation plant afterwards, flocculation agent hydrolyzate and water-borne glue body material in the process of flowing through, suspended matters etc. further fully react and generate micro-floccule, the mutual perikinetic aggregation of micro-floccule becomes bigger particle flocculent substance simultaneously, keep certain yardstick, density and shear strength, water flows in the strainer and filters then, the particle flocculent substance filtering that filtrate in the strainer generates flocculation in the water, water is purified, water after the filtration enters activated charcoal filter again and does further to filter, the characteristic of utilizing gac is with the peculiar smell in the water, Impurity removal such as pigment and algae, afterwards again to the water disinfection, have two kinds in the device and disinfect system, one is the uviolizing sterilization and disinfection, implement by the sterilizer that the quartz burner of routine is formed, another is chlorine disinfectant, can will be implemented in the chlorinated product flow in pipes in the chemicals dosing plant by volume pump according to circumstances; Under the emergency water supply situation, only adopt the uviolizing sterilization and disinfection to get final product.The recoil cleaning process of strainer is as follows: after using for some time, along with the impurity in the filtrate strengthens, filter pressure increases gradually, when reaching certain value, begin to automatically perform the back flushing reproducer, or freely set or adopt manual mode to carry out the back flushing reproducer according to the time, during recoil, it is inner and continue for some time earlier by air compressor machine pressurized air to be blown into filtrate from pipeline, blows away the impurity that is adsorbed on the filtrate, and discharges from sewage outlet, after filtrate impurity blows away, annotate water inlet from top rinse water import filtrate is carried out back flushing, continue for some time, up to the impurity in the filtering layer is thoroughly discharged from sewage outlet, adopting this air water back washing to close washes, clean soon, the water consumption is few, good filtration effect.

Claims

1. a method for purifying water comprises adding medicine mixing, flocculation filtration and sterilisation step, it is characterized in that being made up of following steps:

(1) earlier with flocculation agent and pending water thorough mixing; Then

(2) water of above-mentioned mixing is done continuous flow in a long pipeline, the colloidalmaterial in the flow process in flocculation agent hydrolyzate and the water, suspended matter fully react the bigger particle flocculent substance of generation; Then

(3) water of convection current piping filters, and filters out above-mentioned particle flocculent substance; Then

(4) to the water disinfection.

2. method for purifying water according to claim 1 is characterized in that: said flocculation agent is a sulfate composite aluminium salt in the step (1).

3. method for purifying water according to claim 1 is characterized in that: in said step (1), look the water quality situation and add the pH value conditioning agent simultaneously in water.

4. method for purifying water according to claim 1 is characterized in that: in said step (3), the water that process leaches the particle flocculent substance is again through activated carbon filtration, to remove the impurity such as peculiar smell, pigment and algae in the water.

5. water purification style according to claim 1 is characterized in that: in said step (4), to hydromining with chlorine disinfectant or ultraviolet radiation disinfection mode.

6. realize a kind of water-purification plant of the described method for purifying water of claim 1, comprise frame, pump, chemicals dosing plant, mixing device, strainer, it is characterized in that: be connected with a flocculation plant between said mixing device and strainer, said flocculation plant is made of pipeline assembly.

7. water-purification plant according to claim 6 is characterized in that: said pipeline is a pipe.

8. according to claim 6 or 7 described water-purification plants, it is characterized in that: said flocculation plant is wound on the jacket casing support body by pipeline and constitutes.

9. water-purification plant according to claim 8 is characterized in that: said pipeline is wound on the jacket casing support body 3 layers to 7 layers.

10. ask according to power and require 8 described water-purification plants, it is characterized in that: said strainer is arranged on jacket casing support body inside.

11. water-purification plant according to claim 7 is characterized in that: said pipeline is a plastic-al pipe.

12. water-purification plant according to claim 6 is characterized in that: said chemicals dosing plant is provided with three and independently stores the agent chamber, and each storage agent chamber is equipped with a volume pump respectively.

13. water-purification plant according to claim 6, it is characterized in that: said filter top has the pipeline of an insertion filtering layer, this pipeline connects with air compressor machine, and the bottom is provided with a sewage outlet and a water inlet, and the top is provided with a filtered water outlet and a rinse water import.