CN103058326A - Sewage processing method - Google Patents
Sewage processing method Download PDFInfo
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- CN103058326A CN103058326A CN2013100054308A CN201310005430A CN103058326A CN 103058326 A CN103058326 A CN 103058326A CN 2013100054308 A CN2013100054308 A CN 2013100054308A CN 201310005430 A CN201310005430 A CN 201310005430A CN 103058326 A CN103058326 A CN 103058326A
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Abstract
The invention relates to the scientific and technological field of environmental protection, and especially relates to a sewage processing method. The method is characterized in that pre-processed printing and dyeing wastewater enters a precipitation pool for precipitation; the wastewater is pumped to an immersion ultra-filter water pool, produced water filtered through the immersion ultra-filter membrane in the immersion ultra-filter water pool is pumped to an ultra-filter produced water pool through sucking by a self sucking pump, and the immersion ultra-filter membrane adopts a polyvinylidene fluoride hollow fiber membrane; and water of the ultra-filter produced water pool is divided into two flows, one water flow is pumped to a dyeing workshop through a water supply pump for deep-color cloth dyeing, the other water flow is pumped to a reverse-osmosis device through a booster pump for continuous depth processing, and the reverse-osmosis outlet water subjected to salt removal is discharged to a reuse water pool for reuse at a reuse place. According to the invention, the physical tensile strength of the fiber membrane is increased, the wire fracture is difficult, the surface peeling is difficult, the water flux is high, unblocked mud discharge and full prolongation of the cleaning period of the membrane are realized after the technological improvement, and device service life is prolonged.
Description
Technical field
The present invention relates to the environmental protection sciemtifec and technical sphere, relate in particular to a kind of method of sewage disposal.
Background technology
In the existing sewage water treatment method, generally be to adopt to carry out ultrafiltration without the upholder hollow-fibre membrane, its shortcoming is that the physics tensile strength is not enough, easily fracture of wire; Or the blending hollow-fibre membrane of employing take braided rope as supporter, its shortcoming is that easily peel off on the top layer, and water flux is low, and manufacturing cost is high.In addition, the membrane flux of these tunica fibrosas is very limited, results in blockage easily.And again in existing product water-back flushing-spoil disposal technique the mud after the back flushing can be flushed to from the bottom top, be unfavorable for spoil disposal.
1. the application of the Pvdf Microporous Hollow Fiber Membrane of concrete formula enhancement type material, solved without upholder hollow-fibre membrane physics and drawn high undercapacity, the shortcoming of easy fracture of wire, easily peel off on the blending hollow-fibre membrane top layer that has also solved take braided rope as supporter, water flux is low, the shortcoming that manufacturing cost is high, and not only the physics tensile strength is than increasing more than the several times without the upholder hollow-fibre membrane, and peeling off of supporter and film can not occur, water flux and manufacturing cost and be not with the supporter tubular fibre suitable.2. the rising of membrane flux promotes the processing power of immersion UF greatly.3. arranging of backwash dosing technique can prolong the dirty stifled time of film.4. flux ambassador's occupation area of equipment is little.4. the facility compact that makes of integrated design, convenient operating maintenance.5. former technique changes product water-spoil disposal-back flushing into now for producing water-back flushing-spoil disposal, can avoid like this back flushing after mud all can be flushed to from the bottom top, be unfavorable for spoil disposal.Behind the process improving, spoil disposal is unobstructed, abundant.6. the design of pond bottom sloping is discharged mud smoothly, provides good water surrounding to film, prolongs the membrane washing cycle, the work-ing life of extension device.
Summary of the invention
The object of the present invention is to provide a kind of method of sewage disposal, solved tunica fibrosa undercapacity in the method for present use, damage easily, membrane flux is not enough and result in blockage easily and the sordid problem of back flushing.
For addressing the above problem, the technical solution used in the present invention is:
A kind of method of sewage disposal may further comprise the steps
Enter the settling tank precipitation through pretreated dyeing waste water;
By topping-up pump waste water pump to immersion ultrafiltration pond, the product water of the submerged ultrafiltration in the immersion ultrafiltration pond by the vacuum primingpump suction filtration enters into ultrafiltration and produces the pond, described submerged ultrafiltration adopts Pvdf Microporous Hollow Fiber Membrane;
When the dirty stifled pressure reduction rising of film, backwashing pump is shifted the product water that submerged ultrafiltration filters onto the submerged ultrafiltration exit, and film is carried out back flushing;
When the film silk outlet vacuum table of submerged ultrafiltration is presented at 0.05-0.07MPa, dosing matting submerged ultrafiltration;
The moisture two-way in pond is produced in ultrafiltration, one tunnel process working shaft reaches the dyeing that dyeing workshop is carried out dark cloth, another road reaches reverse osmosis equipment by topping-up pump and proceeds advanced treatment, remove salt after, reverse osmosis water outlet to reuse pool can arrive the reuse point and carry out reuse.
Water outlet and backwash mouth that further technical scheme is above-mentioned submerged ultrafiltration respectively are equipped with self-acting valve, by the switch of time by-pass valve control, are generally and produce water after 15-30 minute, back flushing 2-3 minute.
The bottom that further technical scheme is above-mentioned immersion ultrafiltration basin bottom is provided with aerating apparatus, and aerating apparatus adopts the continous way aeration to guarantee the shake of film silk.
Further technical scheme is that above-mentioned ultrafiltration product pond water-in is equipped with self-acting valve, and the start-stop of the pump of surging produces pond liquid level by ultrafiltration and feeds back to control, and guarantees the liquid level in the ultrafiltration product pond, and the switch of described self-acting valve is consistent with the start-stop frequency of the pump of surging.
Further technical scheme is that above-mentioned dosing matting is that sour receiving with hypochlorous acid cleaned.
Further technical scheme is that the water withdrawal of above-mentioned topping-up pump is 146 tons/hour, pressure 0.25MPa, reverse osmosis equipment in the immersion ultrafiltration pond.
Further technical scheme be above-mentioned dosing matting be the interval weekly.
Further technical scheme is that the water quality of the water outlet in above-mentioned immersion ultrafiltration pond is that PH is 6-7, and turbidity is 0.2-0.5NTU.
Further technical scheme is that the ultrafiltration pressure in above-mentioned ultrafiltration product pond is 1～3 standard atmospheric pressure, molecular weight cut-off is 10～200,000 dalton, service temperature is 5～45 ℃, the rate of recovery of water is 90～95%, backwash dosing hypochlorous acid is received concentration 200-500 mg/litre, concentration of hydrochloric acid 600-1000 mg/litre.
Further technical scheme is that above-mentioned reverse osmosis working pressure is 5～20 standard atmospheric pressures, the chemical oxygen demand clearance is 80%～95%, ratio of desalinization is 80%～95%, service temperature is 5 ℃～40 ℃, the rate of recovery of water is 70～75%, and reverse osmosis water outlet can be fed to each workshop and carry out reuse by actual requirement.
The beneficial effect that adopts technique scheme to produce is: 1. the application of the Pvdf Microporous Hollow Fiber Membrane of concrete formula enhancement type material, solved without upholder hollow-fibre membrane physics and drawn high undercapacity, the shortcoming of easy fracture of wire, easily peel off on the blending hollow-fibre membrane top layer that has also solved take braided rope as supporter, water flux is low, the shortcoming that manufacturing cost is high, not only the physics tensile strength is than increasing more than the several times without the upholder hollow-fibre membrane, and peeling off of supporter and film can not occur, water flux and manufacturing cost and be not with the supporter tubular fibre suitable.2. the rising of membrane flux promotes the processing power of immersion UF greatly.3. arranging of backwash dosing technique can prolong the dirty stifled time of film.4. flux ambassador's occupation area of equipment is little.4. the facility compact that makes of integrated design, convenient operating maintenance.5. former technique changes product water-spoil disposal-back flushing into now for producing water-back flushing-spoil disposal, can avoid like this back flushing after mud all can be flushed to from the bottom top, be unfavorable for spoil disposal.Behind the process improving, spoil disposal is unobstructed, abundant.6. the design of pond bottom sloping is discharged mud smoothly, provides good water surrounding to film, prolongs the membrane washing cycle, the work-ing life of extension device.
Description of drawings
Fig. 1 is the schematic flow sheet of an embodiment of method of a kind of sewage disposal of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows an embodiment of the method for a kind of sewage disposal of the present invention: a kind of method of sewage disposal may further comprise the steps
Enter the settling tank precipitation through pretreated dyeing waste water;
By topping-up pump waste water pump to immersion ultrafiltration pond, the product water of the submerged ultrafiltration in the immersion ultrafiltration pond by the vacuum primingpump suction filtration enters into ultrafiltration and produces the pond, described submerged ultrafiltration adopts Pvdf Microporous Hollow Fiber Membrane;
When the dirty stifled pressure reduction rising of film, backwashing pump is shifted the product water that submerged ultrafiltration filters onto the submerged ultrafiltration exit, and film is carried out back flushing;
When the film silk outlet vacuum table of submerged ultrafiltration is presented at 0.05-0.07MPa, dosing matting submerged ultrafiltration;
The moisture two-way in pond is produced in ultrafiltration, one tunnel process working shaft reaches the dyeing that dyeing workshop is carried out dark cloth, another road reaches reverse osmosis equipment by topping-up pump and proceeds advanced treatment, remove salt after, reverse osmosis water outlet to reuse pool can arrive the reuse point and carry out reuse.
Another embodiment of a kind of method of sewage disposal according to the present invention, the water outlet of described submerged ultrafiltration and backwash mouth respectively are equipped with self-acting valve, switch by the time by-pass valve control, be generally and produce water after 15-30 minute, back flushing 2-3 minute, adopt the periodic running mode, prolong the dirty stifled time of film.
Another embodiment of a kind of method of sewage disposal according to the present invention, the bottom of immersion ultrafiltration basin bottom is provided with aerating apparatus, and aerating apparatus adopts the continous way aeration to guarantee the shake of film silk.
Another embodiment of a kind of method of sewage disposal according to the present invention, described ultrafiltration is produced the pond water-in self-acting valve is housed, the start-stop of pump of surging produces pond liquid level by ultrafiltration and feeds back to control, and guarantees that ultrafiltration produces the liquid level in the pond, and the switch of described self-acting valve is consistent with the start-stop frequency of the pump of surging.
Another embodiment of a kind of method of sewage disposal according to the present invention, described dosing matting is that sour receiving with hypochlorous acid cleaned, and has cleaned and can recover flux 98%.
Another embodiment of a kind of method of sewage disposal according to the present invention, the water withdrawal of topping-up pump is 146 tons/hour, pressure 0.25MPa, reverse osmosis equipment in the immersion ultrafiltration pond.
Another embodiment of a kind of method of sewage disposal according to the present invention, the dosing matting be the interval weekly.
Another embodiment of a kind of method of sewage disposal according to the present invention, the water quality of the water outlet in immersion ultrafiltration pond is that PH is 6-7, turbidity is 0.2-0.5NTU.
Another embodiment of a kind of method of sewage disposal according to the present invention, the ultrafiltration pressure that is produced from the pond in ultrafiltration is 1～3 standard atmospheric pressure, molecular weight cut-off is 10～200,000 dalton, service temperature is 5～45 ℃, the rate of recovery of water is 90～95%, backwash dosing hypochlorous acid is received concentration 200-500 mg/litre, concentration of hydrochloric acid 600-1000 mg/litre.
Another embodiment of a kind of method of sewage disposal according to the present invention, the reverse osmosis working pressure is 5～20 standard atmospheric pressures, the chemical oxygen demand clearance is 80%～95%, ratio of desalinization is 80%～95%, service temperature is 5 ℃～40 ℃, the rate of recovery of water is 70～75%, and reverse osmosis water outlet can be fed to each workshop and carry out reuse by actual requirement.
Product water after the method for a kind of sewage disposal of process the present invention is processed and contrast such as the following table of former water:
Claims (10)
1. the method for a sewage disposal is characterized in that: may further comprise the steps
Enter the settling tank precipitation through pretreated dyeing waste water;
By topping-up pump waste water pump to immersion ultrafiltration pond, the product water of the submerged ultrafiltration in the immersion ultrafiltration pond by the vacuum primingpump suction filtration enters into ultrafiltration and produces the pond, described submerged ultrafiltration adopts Pvdf Microporous Hollow Fiber Membrane;
When the dirty stifled pressure reduction rising of film, backwashing pump is shifted the product water that submerged ultrafiltration filters onto the submerged ultrafiltration exit, and film is carried out back flushing;
When the film silk outlet vacuum table of submerged ultrafiltration is presented at 0.05-0.07MPa, dosing matting submerged ultrafiltration;
The moisture two-way in pond is produced in ultrafiltration, one tunnel process working shaft reaches the dyeing that dyeing workshop is carried out dark cloth, another road reaches reverse osmosis equipment by topping-up pump and proceeds advanced treatment, remove salt after, reverse osmosis water outlet to reuse pool can arrive the reuse point and carry out reuse.
2. the method for a kind of sewage disposal according to claim 1, it is characterized in that: the water outlet of described submerged ultrafiltration and backwash mouth respectively are equipped with self-acting valve, by the switch of time by-pass valve control, are generally and produce water after 15-30 minute, back flushing 2-3 minute.
3. according to claim 1, it is characterized in that: the bottom of immersion ultrafiltration basin bottom is provided with aerating apparatus, and aerating apparatus adopts the continous way aeration to guarantee the shake of film silk.
4. the method for a kind of sewage disposal according to claim 1, it is characterized in that: described ultrafiltration is produced the pond water-in self-acting valve is housed, the start-stop of pump of surging produces pond liquid level by ultrafiltration and feeds back to control, guarantee the liquid level in the ultrafiltration product pond, the switch of described self-acting valve is consistent with the start-stop frequency of the pump of surging.
5. the method for a kind of sewage disposal according to claim 1 is characterized in that: described dosing matting is that acid is received with hypochlorous acid and cleaned.
6. the method for a kind of sewage disposal according to claim 1, it is characterized in that: the water withdrawal of described topping-up pump is 146 tons/hour, pressure 0.25MPa, reverse osmosis equipment in the immersion ultrafiltration pond.
7. the method for a kind of sewage disposal according to claim 1 is characterized in that: described dosing matting be the interval weekly.
8. the method for a kind of sewage disposal according to claim 1, it is characterized in that: the water quality of the water outlet in described immersion ultrafiltration pond is that PH is 6-7, and turbidity is 0.2-0.5NTU.
9. the method for a kind of sewage disposal according to claim 1, it is characterized in that: the ultrafiltration pressure that is produced from the pond in described ultrafiltration is 1～3 standard atmospheric pressure, molecular weight cut-off is 10～200,000 dalton, service temperature is 5～45 ℃, the rate of recovery of water is 90～95%, backwash dosing hypochlorous acid is received concentration 200-500 mg/litre, concentration of hydrochloric acid 600-1000 mg/litre.
10. the method for a kind of sewage disposal according to claim 1, it is characterized in that: described reverse osmosis working pressure is 5～20 standard atmospheric pressures, the chemical oxygen demand clearance is 80%～95%, ratio of desalinization is 80%～95%, service temperature is 5 ℃～40 ℃, the rate of recovery of water is 70～75%, and reverse osmosis water outlet can be fed to each workshop and carry out reuse by actual requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100054308A CN103058326A (en) | 2013-01-08 | 2013-01-08 | Sewage processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100054308A CN103058326A (en) | 2013-01-08 | 2013-01-08 | Sewage processing method |
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| CN103058326A true CN103058326A (en) | 2013-04-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539278A (en) * | 2013-10-22 | 2014-01-29 | 浙江开创环保科技有限公司 | Crystal grinding wastewater treatment method and crystal grinding wastewater treatment device |
| CN105523608A (en) * | 2015-12-31 | 2016-04-27 | 杭州仁顺环保科技有限公司 | Zero discharge process of nickel-containing dyeing solution wastewater in cosmetic aluminum packaging box industry |
| CN105645518A (en) * | 2015-12-31 | 2016-06-08 | 杭州仁顺环保科技有限公司 | Technology for recycling wastewater produced by copper valve welding based on ultrafiltration and reverse osmosis |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359124A1 (en) * | 2002-04-26 | 2003-11-05 | VA TECH WABAG GmbH | Method and device for the purification of potable water by means of a chlorine-resistant nanofiltration membrane |
| CN101353215A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | Dyeing waste water comprehensive processing and reclaiming process |
-
2013
- 2013-01-08 CN CN2013100054308A patent/CN103058326A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359124A1 (en) * | 2002-04-26 | 2003-11-05 | VA TECH WABAG GmbH | Method and device for the purification of potable water by means of a chlorine-resistant nanofiltration membrane |
| CN101353215A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | Dyeing waste water comprehensive processing and reclaiming process |
Non-Patent Citations (2)
| Title |
|---|
| 任亮: "水解－接触氧化－UF－RO工艺处理印染废水及水回用工程", 《水处理技术》, vol. 38, no. 7, 31 July 2012 (2012-07-31), pages 119 - 121 * |
| 苗利利等: "唐钢城市中水与工业废水综合利用工程", 《中国给水排水》, vol. 27, no. 10, 31 May 2011 (2011-05-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539278A (en) * | 2013-10-22 | 2014-01-29 | 浙江开创环保科技有限公司 | Crystal grinding wastewater treatment method and crystal grinding wastewater treatment device |
| CN103539278B (en) * | 2013-10-22 | 2015-09-02 | 浙江开创环保科技股份有限公司 | A kind of crystal abrasive waste water treatment process and device |
| CN105523608A (en) * | 2015-12-31 | 2016-04-27 | 杭州仁顺环保科技有限公司 | Zero discharge process of nickel-containing dyeing solution wastewater in cosmetic aluminum packaging box industry |
| CN105645518A (en) * | 2015-12-31 | 2016-06-08 | 杭州仁顺环保科技有限公司 | Technology for recycling wastewater produced by copper valve welding based on ultrafiltration and reverse osmosis |
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Application publication date: 20130424 |