CN202576131U - Treating and recycling system for industrial ferruginous waste water - Google Patents
Treating and recycling system for industrial ferruginous waste water Download PDFInfo
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- CN202576131U CN202576131U CN 201220217764 CN201220217764U CN202576131U CN 202576131 U CN202576131 U CN 202576131U CN 201220217764 CN201220217764 CN 201220217764 CN 201220217764 U CN201220217764 U CN 201220217764U CN 202576131 U CN202576131 U CN 202576131U
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Abstract
The utility model discloses a treating and recycling system for industrial ferruginous waste water. The treating and recycling system comprises a lift pump, an accelerator, a sedimentation basin, a first oxidation tank, a gas-fluid mixing pump, a second oxidation tank, a first booster pump, a differential pressure dirt separator, a bag filter, a manganese sand filter, an active carbon filter, a buffering water box, a third booster pump, a precise filter, a high pressure pump, an RO (Reverse Osmosis) device, a recycling water box, and a water supply pump which are sequentially communicated through pipes, and a control cabinet controlling the devices above. According to the treating and recycling system for the industrial ferruginous waste water, provided by the utility model, a multistage progressive filtration process and a two-step oxidization process are adopted and a large quantity of air is introduced through the gas-fluid mixing pump to increase the proportion of ferric iron, and the ferric iron precipitate can be effectively filtered to guarantee the cleanness of the outflow water effectively, and a ferruginous waste water discharge process is changed into a treating recycling process, the environment can be effectively protected from being polluted.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of industrial ferrous contained waste water treating and reutilizing system.
Background technology
The iron level that is dissolved in the natural fresh alters a great deal, from every liter of several micrograms to several hectogammas, even above 1 milligram.This depends primarily on the redox property and the pH value of water.Under reductive condition, ferrous iron is preponderated; Under the oxidisability condition, ferric iron is preponderated.Ferrous compound dissolution degree is big.Ferrous iron gets in the water of neutral oxidisability condition, just is oxidized to ferric iron gradually.Ferric compound dissolution degree is little, and hydrolyzable is insoluble ferric hydroxide precipitate.Ferric iron only in sour water solubleness just can increase, perhaps when alkalescence generated complex ion more by force and partly, solubleness just had the trend of increase.Therefore, in the pH value was about 6～9 natural water, the content of iron was not high.Only in underground water, in main section, and in the bottom water of lake, high-load iron is arranged just by groundwater recharge.
Factory discharging contain iron waste water acidity when very strong, iron level is very high; Contain iron waste water and enter natural water body, often because acid the reduction produces tervalent ferric hydroxide precipitate.Newly-generated colloid ironic hydroxide has very strong adsorptive power, in the river, can adsorb multiple other pollutents, and taken to the place that flow velocity slows down by current, as locating in lake, river mouth etc., is deposited to water bottom gradually.Under the anoxia condition of water bottom, because biological action, ferric iron is reduced to again and is prone to molten ferrous iron, and other pollutents get in the water with the dissolving of iron again.
The iron waste water that contains of factory's discharging mainly is that acid mining wastewater is washed the waste water that discharge in the pond with the acidleach of cleaning the steel surface iron rust.In order to remove high-load iron and other heavy metals in the waste water, often add lime to settling tank, with in the acidity of water, ferric hydroxide precipitate is got off.Iron has lethal effect to the mikrobe in the wastewater biochemical processing structures, and for example the ferrous chloride concentration in the waste water is that 5 mg/litre (in iron ion) can make the formation of active sludge slow down, and suppresses the deposition fermentation in settling tank and the digester.When the concentration of iron reached 0.7～1.7 mg/litre in the sewage, the transudation of biological filter just was damaged.
Though iron is very little to humans and animals toxicity, when the concentration of iron cpd is 0.1～0.3 mg/litre in the water body, can influence water look, smell, sensory properties such as flavor.For example, the concentration of some contained iron cpd reaches 0.04 mg/litre in the water body, just peculiar smell can occur.When iron level is too high in the printing and dyeing industry water, often make product ugly spot occur.
In existing " industry " three wastes " discharging tentative standard " of China, the content of iron is not done any restriction.But if with the iron content direct discharging of waste water, the solvability iron ion that exists in the waste water causes the dissolved oxygen in the water body to reduce rapidly, and draining is red orange and muddy, and environment is caused severe contamination.At present; The iron-containing acidic waste water treatment process mainly contain membrane sepn electrolytic oxidation, electroosmose process, oxidation eddy-current method, aeration flocculence, in aeration after the mud circulation contact except that iron processes etc.; But one treatment process can not satisfy a large amount of WWTs, thus be badly in need of a kind of can be with the system of iron content wastewater treatment and renovation.
Summary of the invention
The objective of the invention is to the technological deficiency that exists in the prior art, and a kind of industrial ferrous contained waste water treating and reutilizing system is provided.
For realizing that the technical scheme that the object of the invention adopted is:
A kind of industrial ferrous contained waste water treating and reutilizing system; The housing that comprises above-mentioned each device of the lift pump, rapid strainer, settling tank, first oxidation pond, gas-liquid mixing pump, second oxidation pond, first topping-up pump, pressure reduction dirt separator, deep bed filter, filtration with manganese sand device, activated charcoal filter, buffer tank, the 3rd topping-up pump, accurate filter, HPP, RO device, reuse water tank, working shaft and the may command that are communicated with successively by the road; Wherein, Pipeline between described rapid strainer and the settling tank is provided with the coagulating agent adding set; Pipeline between described filtration with manganese sand device and the activated charcoal filter is provided with the sterilant adding set, and the pipeline between described the 3rd topping-up pump and the accurate filter is provided with the Scale inhibitors adding set.
Described first oxidation pond is communicated with the side wall upper part of settling tank by the road.
Described working shaft is the constant pressure water supply pump.
Between described second oxidation pond and filtration with manganese sand device, also be provided with the pipeline that directly is communicated with, described pipeline is provided with second topping-up pump.
Described coagulating agent adding set comprises that the line mixer and the coagulating agent that are connected on the pipeline add mechanism, and described coagulating agent adds mechanism and comprises liquor box, dosing pump and liquidometer.
Compared with prior art, the invention has the beneficial effects as follows:
The iron content wastewater treatment equipment of the utility model; Adopt multistage progressively the filtration and the two-step oxidation process, and utilize gas-liquid mixing pump to introduce a large amount of air, improve the ferric iron ratio; Then ferric ions precipitation is effectively filtered; Can effectively guarantee the clarity of water outlet, convert the iron content sewage discharge into the processing reuse, can guarantee effectively that environment is not contaminated.
Description of drawings
Shown in Figure 1ly use the system architecture synoptic diagram for the iron content WWT of the utility model.
Among the figure: 1. lift pump, 2. rapid strainer, 3. line mixer, 4. coagulating agent adds mechanism, 5. settling tank; 6. first oxidation pond, 7. gas-liquid mixing pump, 8. second oxidation pond, 9. first topping-up pump, 10. pressure reduction dirt separator; 11. deep bed filter, 12. filtration with manganese sand devices, 13. activated charcoal filters, 14. sterilant adding sets, 15. buffer tanks; 16. the 3rd topping-up pump, 17. accurate filters, 18. HPPs, 19.RO device; 20. the reuse water tank, 21. constant pressure water supply pumps, 22. second topping-up pumps, 23. Scale inhibitors adding sets.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further explain.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1; The industrial ferrous contained waste water treating and reutilizing system of the utility model; The housing that comprises by the road the lift pump 1 that is communicated with, rapid strainer 2, settling tank 5, first oxidation pond 6, gas-liquid mixing pump 7, second oxidation pond 8, first topping-up pump 9, pressure reduction dirt separator 10 deep bed filter 11, filtration with manganese sand device 12, activated charcoal filter 13, buffer tank 15, the 3rd topping-up pump 16, accurate filter 17, HPP 18, RO device 19, reuse water tank 20, working shaft 21 and above-mentioned each device of may command; Wherein, Pipeline between described rapid strainer 2 and the settling tank 5 is provided with the coagulating agent adding set; Pipeline between described filtration with manganese sand device 12 and the activated charcoal filter 13 is provided with sterilant adding set 14, and the pipeline between described the 3rd topping-up pump 16 and the accurate filter is provided with Scale inhibitors adding set 23.
Described lifting originally is arranged on the detention tank bottom of gathering iron content sewage in order to sewage transport to rapid strainer 2; Described rapid strainer is according to principle of hydrodynamics; It is very little to have adopted reasonable structure form to make it running resistance; Be installed on and need not to be provided with bypass in the piping system, the normal operation of system is guaranteed in the blowdown that can under the non-stop-machine situation of system, recoil at any time.Be divided into through type and angle general formula according to service condition.Principle of work: during dirt separator work, it is inboard that dish valve valve plate place and full-gear medium get into filter screen by suction flange, after mesh filters, gets into the filter screen outside, leaves dirt separator by discharge flange and get into piping system.During the dirt separator blowdown, dish valve valve plate is in closing condition, the outer valve open of blow-off pipe, because interior medium of dirt separator and blow-off pipe produce pressure reduction outward, medium flow is to change, and is inboard by the filter screen outside flow direction, plays the recoil effect impurity and dirt are discharged.In the blowdown process, most of medium still gets into piping system by discharge flange, and system does not shut down.
The pipeline that the water of process rapid strainer is delivered to settling tank 5 and between by the road is provided with the coagulating agent adding set, and described coagulating agent adding set comprises that the line mixer and the coagulating agent that are connected on the pipeline add mechanism.Described line mixer is also claimed tubular static mixer; All very effective to adding aspects such as various coagulating agent, coagulant aids, ozone, liquid chlorine and acid-base neutralisation, air water mixing in plumbing and environment-friendly engineering, be to handle the various medicaments in waters to realize moment blended equipment, have mixing, simple in structure rapidly and efficiently; Characteristics such as energy efficient, advantages of small volume; Under the power situation, current can produce shunting, intersect and mix and reverse three effects of eddy flow through line mixer, make the medicament of adding be diffused in the whole water body rapidly, equably outside not needing; Reach moment blended purpose; Mixing efficiency can be saved the about 20-30% of dosing up to 90-95%, to improving the water treatment effect.Line mixer generally is made up of with promotion blended original papers such as nozzle, whirling chamber, porous plate or sketch plates respectively pipeline.Method of mixing has 3 kinds, is respectively nozzle-type, eddy current type, and porous plate, special-shaped board-like, this is a prior art, repeats no more at this.It is general chemicals dosing plant that described coagulating agent adds mechanism, and it mainly comprises liquor box, dosing pump and liquidometer, and described dosing pump is connected with housing is controlled respectively with liquidometer.
Get into settling tank through preliminary decontamination of rapid strainer and the sewage that added coagulating agent; In settling tank, carry out preliminary floss deposition; Described first oxidation pond 6 is connected with the settling tank side wall upper part; The more clear liquid in top through post precipitation gets into first oxidation pond; So that the part oxidation of divalent iron ion is become ferric ion, the liquid after the preliminary oxidation enters second oxidation pond 8 through gas-liquid mixing pump, and described gas-liquid mixing pump also is turbulence pump, air dissolved pump, ozone water mixing pump, Airfloat pump, air-water mixing pump, mixes air pump, aeration pump, Gas-liquid pump.The gas-liquid mixed pump intake can utilize suction function to suck gas, so need not to adopt air and atmosphere injector.The pump impeller of high speed rotating mixes stirring with liquid with gas, so need not whisking appliance and mixing tank.Because the pressurization in the pump mixes, gas and liquid fully dissolve, and dissolved efficiency can reach 80-100%.Carry out getting into second oxidation pond after the gas-liquid mixed, can further quicken the oxidising process of ferrous ion, raising three adds the ratio of iron ion, strengthens filter effect of follow-up each device.
Liquid after peroxo-is delivered to differential filter device 10 through first topping-up pump, and after water got into body by water-in, system was discerned impurity deposition degree automatically; The pressure difference value of treating intake-outlet reaches when presetting pressure difference; Commander's wash water valve carries out blowdown, then closes automatically, goes round and begins again.Described differential filter device 10 can be discerned pressure reduction automatically, and automatic filtration is cleaned automatically, and automatic pollution discharge is closed automatically, uninterruptedly supplies water in the cleaning process.Have functions such as scale removal, antiscale, sterilization, algae removal simultaneously, the antiscaling, descaling rate reaches 95%, and the ratio of removing bacteria and algae reaches 90%, and filtration efficiency is high.
Liquid through the differential filter device gets into deep bed filter 11 then; Described bag type filtering machine is a kind of pressure type filtration unit; Mainly contain filtration barrel body, filtration barrel cover and major partss such as fast opening mechanism, stainless steel filter bag reinforcing mat and form, filtrating flows into filter bag by the side inlet tube of filter shell, and filter bag itself is that device is in strengthening basket; The filter bag that liquid infiltration is crossed required fineness grade can obtain qualified filtrating, and impurity particle is tackled by filter bag.It is very convenient that this machine is changed filter bag, filters and do not have material consumption basically.
Water through behind the deep bed filter gets into filtration with manganese sand device and activated charcoal filter by the road successively; Described filtration with manganese sand device and activated charcoal filter comprise tank body respectively and are arranged on a jar intravital filtration medium; Utilize the Filtration Adsorption effect of manganese sand or gac can effectively remove the floss that the hydroxide three-iron is produced, increase water quality.Be the result of use of its high described filtration with manganese sand device and activated charcoal filter simultaneously, it also is respectively arranged with the backwash pipeline, and described backwash pipeline and prior art are not given unnecessary details at this together.Flooding velocity during for the raising backwash; Between described second oxidation pond and filtration with manganese sand device, be provided with straight-through pipeline; When needs carried out backwash, second topping-up pump that is arranged on the straight-through pipeline started, and increased along the backwash pipeline to get into the discharge in filtration with manganese sand device or the activated charcoal filter; Accelerate the backwash process, improve the backwash effect.
After buffer tank 15 bufferings, get into accurate filter 17 through the 3rd topping-up pump supercharging and after adding Scale inhibitors through the water behind the activated charcoal filter, described accurate filter is called security personnel's strainer again; Shell adopts the manufacturing of UPVC material; Filter core is that Vilaterm melts and sprays material, and filtering accuracy is 5 μ m, and former water passes through filter core under pressure; Particulate, the impurity that can remove in the water are held back, and reach decontamination effect improving.Before the RO device that is described below accurate filter is set, can removes the trace suspension granule foreign in the water, thereby satisfy the requirement of reverse osmosis membrane system, also improve the integral filter effect, improve the work-ing life of reverse osmosis membrane simultaneously water inlet.
Water through after accurate filter 17 filtrations is delivered to RO device 19 through HPP 18; The principle of work of RO device (reverse osmosis membrane apparatus) is that the utilization high-pressure hydraulic pump adds to 6-10 kilogram pressure with water; Make water under the effect of pressure, penetrate the aperture and have only 0.0001 micron permeable membrane; Chemical ions etc. can not pass through, and only allow volume to pass through less than 0.0001 micron water molecules and oxygen molecule.Be that it can effectively separate the impurity in the former water with water.Reverse osmosis unit is the concentrated discharging of dissolved solid and the process that fresh water utilizes, and can effectively remove most inorganic salt in the water, small organic molecule (material that about 200 molecular weight are above), bacterium etc.Get into 20 storages of reuse water tank in order to using through purifying waste water of RO device, and the chemical ion through permeable membrane etc. is not disposed to trench or sump focuses on through dense water lines.Be to improve the detection effect to water outlet, described RO device rising pipe is provided with conductivity sensor, tests and can effectively guarantee effluent characteristics going out electrical conductivity of water through conductivity sensor, can control the backwash process of RO device simultaneously.
Water after the RO device purifies gets in the reuse water tank; Water in the reuse water tank is purified water; It can be delivered to each water nozzle through the constant pressure water supply pump, for alleviating the variation of actual used water, between described constant pressure water supply pump 21 water outlets and reuse water tank, water return pipeline is set also; When actual used water is less than normal, but this water return pipeline of conducting is the pressure release of constant pressure water supply pump.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (5)
1. industrial ferrous contained waste water treating and reutilizing system; It is characterized in that; The housing that comprises above-mentioned each device of the lift pump, rapid strainer, settling tank, first oxidation pond, gas-liquid mixing pump, second oxidation pond, first topping-up pump, pressure reduction dirt separator, deep bed filter, filtration with manganese sand device, activated charcoal filter, buffer tank, the 3rd topping-up pump, accurate filter, HPP, RO device, reuse water tank, working shaft and the may command that are communicated with successively by the road; Wherein, Pipeline between described rapid strainer and the settling tank is provided with the coagulating agent adding set; Pipeline between described filtration with manganese sand device and the activated charcoal filter is provided with the sterilant adding set, and the pipeline between described the 3rd topping-up pump and the accurate filter is provided with the Scale inhibitors adding set.
2. industrial ferrous contained waste water treating and reutilizing as claimed in claim 1 system is characterized in that described first oxidation pond is communicated with the side wall upper part of settling tank by the road.
3. industrial ferrous contained waste water treating and reutilizing as claimed in claim 1 system is characterized in that described working shaft is the constant pressure water supply pump.
4. like each described industrial ferrous contained waste water treating and reutilizing system of claim 1-3, it is characterized in that between described second oxidation pond and filtration with manganese sand device, also be provided with the pipeline that directly is communicated with, described pipeline is provided with second topping-up pump.
5. industrial ferrous contained waste water treating and reutilizing as claimed in claim 4 system; It is characterized in that; Described coagulating agent adding set comprises that the line mixer and the coagulating agent that are connected on the pipeline add mechanism, and described coagulating agent adds mechanism and comprises liquor box, dosing pump and liquidometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217764 CN202576131U (en) | 2012-05-15 | 2012-05-15 | Treating and recycling system for industrial ferruginous waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217764 CN202576131U (en) | 2012-05-15 | 2012-05-15 | Treating and recycling system for industrial ferruginous waste water |
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| CN202576131U true CN202576131U (en) | 2012-12-05 |
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| CN 201220217764 Expired - Fee Related CN202576131U (en) | 2012-05-15 | 2012-05-15 | Treating and recycling system for industrial ferruginous waste water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336037A (en) * | 2016-08-30 | 2017-01-18 | 江苏万邦达环保科技有限公司 | Multi-stage filtering type sewage treatment equipment |
| CN107673532A (en) * | 2017-10-25 | 2018-02-09 | 四川西南华晖工业有限公司 | A kind of filtration treatment method of factory's iron rust waste water |
| CN108004411A (en) * | 2017-12-28 | 2018-05-08 | 长春工程学院 | A kind of apparatus and method of neodymium iron boron greasy filth waste material room temperature wet method air, ozone secondary oxidation iron removaling and organic matter |
| CN108083487A (en) * | 2016-11-23 | 2018-05-29 | 宝山钢铁股份有限公司 | It is a kind of to remove the method and apparatus of total iron and total organic carbon in heat treatment waste water |
-
2012
- 2012-05-15 CN CN 201220217764 patent/CN202576131U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336037A (en) * | 2016-08-30 | 2017-01-18 | 江苏万邦达环保科技有限公司 | Multi-stage filtering type sewage treatment equipment |
| CN108083487A (en) * | 2016-11-23 | 2018-05-29 | 宝山钢铁股份有限公司 | It is a kind of to remove the method and apparatus of total iron and total organic carbon in heat treatment waste water |
| CN107673532A (en) * | 2017-10-25 | 2018-02-09 | 四川西南华晖工业有限公司 | A kind of filtration treatment method of factory's iron rust waste water |
| CN108004411A (en) * | 2017-12-28 | 2018-05-08 | 长春工程学院 | A kind of apparatus and method of neodymium iron boron greasy filth waste material room temperature wet method air, ozone secondary oxidation iron removaling and organic matter |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150515 |
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| EXPY | Termination of patent right or utility model |