CN103570171B - Equipment for recovering high-salinity high-chroma dyeing wastewater - Google Patents
Equipment for recovering high-salinity high-chroma dyeing wastewater Download PDFInfo
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- CN103570171B CN103570171B CN201310467833.4A CN201310467833A CN103570171B CN 103570171 B CN103570171 B CN 103570171B CN 201310467833 A CN201310467833 A CN 201310467833A CN 103570171 B CN103570171 B CN 103570171B
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- advanced oxidation
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Abstract
The invention discloses equipment for recovering high-salinity high-chroma dyeing wastewater. The equipment comprises a regulating tank, a first advanced oxidation device, a second advanced oxidation device, a filter and a purification storage tank which are successively connected; the chroma of treated water can reach 30 times or below, so that the standard of dyeing reuse water is met; and the salt content in the waste is basically unchanged, and the requirements for production and reuse can be met on the basis of adding a small amount of salt. Thus, the problem that high-salinity wastewater is difficult to treat for dyeing enterprises is solved, and a low-cost, efficient and stable solution way is also provided for reuse of high-salinity wastewater.
Description
The application is the divisional application of application number 201210289827X, August 15 2012 applying date, denomination of invention " a kind of recovery process of high-salinity high-chroma dyeing waste water and equipment thereof ".
Technical field
The present invention relates to a kind of recovery system of waste water, specifically a kind of recovery system of high-salinity high-chroma dyeing waste water, belongs to waste water reclamation field.
Background technology
Due to the puzzlement of " water crisis ", many countries and regions actively set about consolidating and strengthening consciousness of saving water and study trade effluent regeneration and reuse work, by water used in Industrial processes reuse after treatment.Various waste water can be produced in textile industry, wherein serious with dyeing waste water.Owing to containing a large amount of residual dyes and auxiliary agent in dyeing waste water, therefore chroma in waste water is high.The colourity of dyeing waste water brings very large difficulty to wastewater treatment and renovation, becomes the obstacle realizing waste water reclaiming.
Before the eighties in last century, the biodegradability of China's dyeing waste water is higher, and CODcr concentration is everlasting below 800mg/L, and adopt traditional biology and materialization joint processing system, water outlet can reach emission standard.In recent decades, dyeing waste water water quality has a very large change.Traditional treatment method of printing and dying wastewater, as absorption, suspension, filtration, coagulation etc., although to have equipment simple, the advantage of easy and simple to handle and technical maturity, but organism is normally transferred to solid phase or gas phase from liquid phase by this kind for the treatment of process, not only do not eliminate organic pollutant and chemical agent consumption completely, and cause the secondary pollution of tip sum; Biological process can only remove the BOD in dyeing waste water, and the removal effect for COD particularly poisonous hardly degraded organic substance and colourity is not obvious.
Now, there is multiple dyeing waste water further treatment technique, such as, electrochemical process have equipment little, take up an area less, the advantage such as operational management is simple, CODcr clearance is high and decolouring is good, but precipitation growing amount and electrode materials consumption are comparatively large, and working cost is higher.In addition, membrane technique development is very rapid, and from ultrafiltration to reverse osmosis, excellent effect, gordian technique is also mature on the whole, and has been widely used in the fields such as direct drinking water, sea water desaltination, high purity product production.But the shortcoming existed due to tunica fibrosa itself limits its widespread use in the advanced treatment of trade effluent and sanitary wastewater.One, the life-span of mould material and membrane module cost intensive and organic membrane is not long; Its two, reach the target of high efficiency separation, the effective pore radius of film is minimum, and therefore operation energy consumption is very high.Because the reuse amount after wastewater treatment is very big, and the water quality standard of reuse water can a little less than using water water quality standard accordingly in many, and therefore with membrane technique process waste water, huge investment and great number operation, maintenance cost limit its feasibility.
Summary of the invention
In order to solve the problem, the present invention devises a kind of recovery system of high-salinity high-chroma dyeing waste water, not only solve the unmanageable difficult problem of printing and dyeing enterprise high salinity waste water, return high salinity waste water reuse and provide low, efficient, the stable solution route of a set of cost.
Technical scheme of the present invention is:
A recovery process for high-salinity high-chroma dyeing waste water, comprises the following steps:
(1) initial acidic regulates: by Waste Water Centralized in wastewater equalization pond, add the first medicine acid, regulate pH to acid, with gas blower, waste water is carried out aeration agitation simultaneously, gas-water ratio keeps 3:1, waste water in equalizing tank is tentatively regulated, to reach the object that homogeneous is all measured, is beneficial to subsequent disposal; Chemical feeding quantity need adopt suitable chemical feeding quantity according to dyeing waste water water quality, needs certain hour to react, and mixes homogeneous;
(2) preliminary oxidation: be transported to by waste water in equalizing tank in the first advanced catalytic oxidation device, adds the second medicine Fe
2+with the 3rd medicine H
2o
2, adopt suitable chemical feeding quantity according to dyeing waste water water quality, minimum chemical feeding quantity is: 0.8g/L Fe
2+, 1.2ml/L H
2o
2, reaction times 30min, carries out oxygenolysis by the dyestuff containing chromophoric group in waste water, removes most of coloring matter and organism, remove colourity; Meanwhile, some TiO are provided with in the first advanced oxidation device
2layer, adjacent TiO
2be provided with ultraviolet tube between layer, improve oxidation effectiveness;
(3) secondary oxidation: the waste water after the first advanced oxidation device process is entered intermediate pool precipitation, supernatant liquor rises to the second advanced oxidation device through pump, to the further oxygenolysis of coloring matter residual in waste water; Second advanced oxidation device is provided with some ultraviolet tubes and TiO
2coating, UV-lamp to device internal irradiation, improves catalytic oxidation effect, TiO by ultraviolet lamp hole
2coating promotes that ozone oxidation is decomposed, and improves catalytic oxidation effect; Reaction times, more long-acting fruit was better, and the reaction times is decided to be 30min the best;
(4) filter: the waste water after the second advanced oxidation device process is flow to sandfiltration pot, flow 10m3/h, filtering velocity 5m/h, waste water after filtration, removes the suspended substance in waste water and throw out in sandfiltration pot; Sandfiltration pot needs to carry out back flushing after running certain hour.Water after sand filtration enters manganese sand filter, flow 10m3/h, filtering velocity 8m/h, except the iron ion in anhydrating, completes waste water decoloring purification.Manganese sand filter needs to carry out back flushing after running certain hour.
Water after purification is stored in purification storage tank, for production and application.
For a device for above-mentioned high-salinity high-chroma dyeing waste water recovery process, comprise the equalizing tank, the first advanced oxidation device, the second advanced oxidation device, strainer and the purification storage tank that are connected successively;
The first described advanced oxidation device is provided with inside and outside two layers of walls, and described inner layer wall inside is provided with mixing reactor, and the bottom opening of described inner layer wall also communicates with described outer wall; From bottom to top some TiO are alternately provided with successively between described inside and outside two layers of walls
2layer and ultraviolet tube, through the reacted water outlet of mixing reactor from bottom to top successively by the equally distributed TiO of each layer
2the irradiation of layer and ultraviolet tube; The top of the first described advanced oxidation device is provided with effluent trough.
Described mixing reactor is connected with described equalizing tank by waste water lifting pipeline, and described waste water lifting pipeline is provided with waste water lifting pump;
Described mixing reactor is connected with the 3rd medicine chest by drug feeding pipeline;
Described waste water lifting pipeline is connected with the second medicine chest through drug feeding pipeline, after the drug feeding pipeline tie point of the second medicine chest, be provided with line mixer, mixes with waste water for making the second medicine.
The second described advanced oxidation device comprises housing, and described inner walls is provided with TiO
2coating, described housing wall is provided with some ultraviolet lamp holes, and described ultraviolet lamp hole is evenly distributed on housing, is arranged on UV-lamp on housing by the internal irradiation of ultraviolet lamp hole to housing;
The top of described housing is provided with recirculated water water outlet and water purification water outlet, and the bottom of described housing is provided with raw water inlet; The bottom of described housing is provided with sewage draining exit.
Further, the bottom of described housing is also provided with inspection window and support, and operator can enter the second advanced oxidation device from inspection window, check device inside.
Further, the outside of described housing is provided with the communication apparatus being communicated with described recirculated water water outlet and raw water inlet, the water pump that described communication apparatus comprises pipeline and is arranged on described pipeline.
Described equalizing tank is provided with blower unit;
Intermediate pool is provided with between the first described advanced oxidation device and the second advanced oxidation device;
Described strainer comprises sandfiltration pot and manganese sand filter.
Described sandfiltration pot comprises the first tank body, described first tank body top is provided with sandfiltration pot water inlet pipe, and described first tank base is provided with sandfiltration pot rising pipe, and described first tank base side is provided with sandfiltration pot spigot discharge, convenient by filtrate removal, described first tank body lower part is also provided with sandfiltration pot pillar.Described sandfiltration pot inside is provided with quartz sand and pebbles, top quartz sand particle size 2-4mm, thick 1.2m, middle part quartz sand particle size 4-8mm, thick 0.3m, lower quartz sand grains footpath 8-16mm, thick 0.3m, pebbles footpath, bottom 16-32mm, thick 0.25m; Be preferably, top quartz sand particle size 3mm, thick 1.2m, middle part quartz sand particle size 6mm, thick 0.3m, lower quartz sand grains footpath 12mm, thick 0.3m, pebbles footpath, bottom 24mm, thick 0.25m.
Described manganese sand filter comprises the second tank body, described second tank body top is provided with manganese sand filter water inlet pipe, manganese sand filter venting port and joint hinge, described second tank base is provided with manganese sand filter rising pipe, described second tank base side is provided with manganese sand filter spigot discharge, convenient by filtrate removal, described second tank body lower part is provided with manganese sand filter pillar.The inside of described manganese sand filter is provided with manganese sand and quartz sand, manganese sand grains footpath, top 1-5mm, thick 1.5m, middle part quartz sand particle size 2-4mm, thick 0.35m, bottom quartz sand particle size 4-8mm, thick 0.35m; Be preferably, manganese sand grains footpath, top 3mm, thick 1.5m, middle part quartz sand particle size 3mm, thick 0.35m, bottom quartz sand particle size 6mm, thick 0.35m.
Sandfiltration pot is entered through sandfiltration pot water inlet pipe by the second advanced oxidation device water out, filter through quartz sand and pebbles, by suspended substance removing in water, water outlet enters manganese sand filter through manganese sand filter water inlet pipe after being flowed out by sandfiltration pot rising pipe, through manganese sand except the iron in anhydrating, the quartz sand of lower floor, further except the middle suspended substance that anhydrates, ensures effluent quality.
The invention has the advantages that: whole technique adopts the treatment process of advanced oxidation series connection, compared with simple physical method or chemical Treatment, reliable, treatment effect good, water quality colourity after present invention process process can reach less than 30 times, reach printing and dyeing recycle water standard, salt content in water is substantially constant, can meet production reuse requirement on the basis of adding a small amount of salinity.Not only solve the unmanageable difficult problem of printing and dyeing enterprise high salinity waste water, return high salinity waste water reuse and provide low, efficient, the stable solution route of a set of cost.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the connection diagram of retrieving arrangement in the embodiment of the present invention;
Fig. 2 is the structural representation of the first advanced oxidation device in the embodiment of the present invention;
Fig. 3 is the structural representation of the second advanced oxidation device in the embodiment of the present invention;
Fig. 4 is the structural representation of sandfiltration pot in the embodiment of the present invention;
Fig. 5 is the structural representation of manganese sand filter in the embodiment of the present invention;
In figure: 1-equalizing tank, 2-first advanced oxidation device, 3-intermediate pool, 4-second advanced oxidation device, 5-sandfiltration pot, 6-manganese sand filter, 7-purifies storage tank, 8-blower unit, 9-waste water lifting pump, 10-second medicine chest, 11-line mixer, 12-the 3rd medicine chest, 13-effluent trough, 14-TiO
2layer, 15-ultraviolet tube, 16-mixing reactor, 17-housing, 18-ultraviolet lamp hole, 19-recirculated water water outlet, 20-water purification water outlet, 21-raw water inlet, 22-sewage draining exit, 23-inspection window, 24-support, 25-sandfiltration pot water inlet pipe, 26-sandfiltration pot rising pipe, 27-sandfiltration pot spigot discharge, 28-sandfiltration pot pillar, 29-manganese sand filter water inlet pipe, 30-venting port, 31-joint hinge, 32-manganese sand filter rising pipe, 33-manganese sand filter spigot discharge, 34-manganese sand filter pillar.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Except as otherwise noted, the mark adopted in the present invention is weight number.
Embodiment 1
A recovery process for high-salinity high-chroma dyeing waste water, comprises the following steps:
(1) enter after the high salinity waste water produced in dyeing process collects in wastewater equalization pond 1, add the first medicine acid, such as hydrochloric acid, regulate pH=6, by blower unit 8, the waste water in equalizing tank 1 is carried out aeration agitation, gas-water ratio keeps 3:1, to reach the object that homogeneous is all measured;
(2) waste water in equalizing tank 1 is promoted to the first advanced oxidation device 2 via waste water lifting pump 9, dissolves the second medicine Fe
2+, the 3rd medicine H
2o
2enter mixing reactor 16 together with after mixing in line mixer 11 with waste water, chemical feeding quantity is: 0.8g/L Fe
2+, 1.2ml/L H
2o
2, reaction times 30min, the TiO in the first advanced oxidation device 2
2under the catalysis of layer 14, ultraviolet tube 15, the oxidized decomposition of the pollutent in waste water;
(3) then waste water flows into the second advanced oxidation device 4, second advanced oxidation device 4 from effluent trough 13 through raw water inlet 21 and is provided with some ultraviolet tubes and TiO
2coating, ultraviolet improves catalytic oxidation effect, TiO
2coating promotes that ozone oxidation is decomposed, and improve catalytic oxidation effect, the reaction times is 30min, and UV-lamp passes through the internal irradiation of ultraviolet lamp hole 18 to housing 17, at ultraviolet and TiO
2under the catalysis of coating, waste water is further oxided decolouring;
(4) water purification flows in sandfiltration pot 5 through water outlet 20, flow 10m3/h, filtering velocity 5m/h, utilizes quartz sand particle to be retained to purify water by suspended substance in water in sandfiltration pot 5.Sandfiltration pot 5 needs after running certain hour to carry out back flushing.Sandfiltration pot 5 water outlet flows into manganese sand filter 6, flow 10m3/h, filtering velocity 8m/h, utilizes manganese sand by the iron removing in water, purify water further in manganese sand filter 6.Manganese sand filter 6 needs after running certain hour to carry out back flushing.Manganese sand filter 6 water outlet purifies in storage tank 7, for dyeing and printing process from flowing into.
As shown in Figure 1, a kind of device for above-mentioned high-salinity high-chroma dyeing waste water recovery process, comprises equalizing tank 1, first advanced oxidation device 2, second advanced oxidation device 4, strainer and the purification storage tank 7 that are connected successively;
Described equalizing tank 1 is provided with blower unit 8; Waste water lifting pump 9 is provided with between described equalizing tank 1 and the first advanced oxidation device 2; Intermediate pool 3 is provided with between the first described advanced oxidation device 2 and the second advanced oxidation device 4; Described strainer comprises sandfiltration pot 5 and manganese sand filter 6.
As shown in Figure 2, the first described advanced oxidation device 2 comprises waste water lifting pump 9, second medicine chest 10, line mixer 11, the 3rd medicine chest 12, effluent trough 13, TiO
2layer 14, ultraviolet tube 15, mixing reactor 16, the waste water in equalizing tank 1 enters mixing reactor 16 by waste water lifting pump 9 via waste water lifting pipeline.Second medicine chest 10 is connected to waste water lifting pipeline through drug feeding pipeline.In described waste water lifting pipeline, after the drug feeding pipeline tie point of the second medicine chest 10, be provided with line mixer 11.Drug feeding pipeline and the waste pipe of the 3rd medicine chest 12 pass in mixing reactor 16 simultaneously.Through the reacted water outlet of mixing reactor 16 from bottom to top successively by the equally distributed TiO of each layer
2the irradiation of layer 14 and ultraviolet tube 15, is finally discharged by effluent trough 13.
As shown in Figure 3, the second described advanced oxidation device 4 comprises housing 17, ultraviolet lamp hole 18, recirculated water water outlet 19, water purification water outlet 20, raw water inlet 21, sewage draining exit 22, inspection window 23, support 24.Recirculated water water outlet 19 and water purification water outlet 20 are separately positioned on the top of housing 17, raw water inlet 21 is arranged on the bottom of housing 17, the communication apparatus of communication loop water water outlet 19 and raw water inlet 21 is provided with in the outside of housing 17, described communication apparatus comprises pipeline and is arranged on the water pump on described pipeline, communication apparatus is arranged in operation, inspection window 23 is arranged on the bottom of housing 17, operator can enter the second advanced oxidation device 4 from inspection window 23, device inside is checked, the quantity of ultraviolet lamp hole 18 is several, ultraviolet lamp hole 18 is evenly distributed on housing 17 wall, UV-lamp is by the internal irradiation of ultraviolet lamp hole 18 to housing 17, the inwall of housing 17 is provided with TiO
2coating, sewage draining exit 22 is arranged on the bottom of housing 17, and the bottom of housing 17 is provided with support 24.
As shown in Figure 4, described sandfiltration pot 5 comprises the first tank body, and described first tank body top is provided with sandfiltration pot water inlet pipe 25, and described first tank base is provided with sandfiltration pot rising pipe 26, described first tank body side is provided with sandfiltration pot spigot discharge 27, and described first tank body lower part is also provided with sandfiltration pot pillar 28.Described sandfiltration pot inside is provided with quartz sand and pebbles, pebbles is positioned at bottom, and quartz sand is positioned at top, and quartz sand is divided into upper, middle and lower three layers, upper strata quartz sand particle size 2-4mm, thick 1.2m, middle level quartz sand particle size 4-8mm, thick 0.3m, lower floor quartz sand particle size 8-16mm, thick 0.3m, pebbles footpath, bottom 16-32mm, thick 0.25m.
As shown in Figure 5, described manganese sand filter 6 comprises the second tank body, described second tank body top is provided with manganese sand filter water inlet pipe 29, manganese sand filter venting port 30 and joint hinge 31, described second tank base is provided with manganese sand filter rising pipe 32, described second tank body side is provided with manganese sand filter spigot discharge 33, and described second tank body lower part is provided with manganese sand filter pillar 34.The inside of described manganese sand filter is provided with manganese sand and quartz sand, and quartz sand is positioned at bottom, and manganese sand is positioned at top, manganese sand grains footpath, top 1-5mm, thick 1.5m, quartz sand is divided into two-layer up and down, upper strata quartz sand particle size 2-4mm, thick 0.35m, lower floor quartz sand particle size 4-8mm, thick 0.35m.
The water outlet of the second advanced oxidation device 4 enters sandfiltration pot 5 through sandfiltration pot water inlet pipe 25, filter through quartz sand and pebbles, by suspended substance removing in water, water outlet enters manganese sand filter 6 through manganese sand filter water inlet pipe 29 after being flowed out by sandfiltration pot rising pipe 26, through manganese sand except the iron in anhydrating, the quartz sand of lower floor, further except the middle suspended substance that anhydrates, ensures effluent quality.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a retrieving arrangement for high-salinity high-chroma dyeing waste water, is characterized in that: comprise the equalizing tank (1), the first advanced oxidation device (2), the second advanced oxidation device (4), strainer and the purification storage tank (7) that are connected successively;
Described first advanced oxidation device (2) is provided with inside and outside two layers of walls, and inner layer wall inside is provided with mixing reactor (16), and the bottom opening of inner layer wall also communicates with described outer wall; From bottom to top some TiO are alternately provided with successively between described inside and outside two layers of walls
2layer (14) and ultraviolet tube (15), the top of described first advanced oxidation device (2) is provided with effluent trough (13);
Described mixing reactor (16) is connected with described equalizing tank (1) by waste water lifting pipeline, and described waste water lifting pipeline is provided with waste water lifting pump (9);
Described mixing reactor (16) is connected with the 3rd medicine chest (12) by drug feeding pipeline;
Described waste water lifting pipeline is connected with the second medicine chest (10) through drug feeding pipeline, after the drug feeding pipeline tie point of the second medicine chest (10), be provided with line mixer (11), mixes with waste water for making the second medicine;
Described second advanced oxidation device (4) comprises housing (17), recirculated water water outlet (19), water purification water outlet (20), raw water inlet (21), recirculated water water outlet (19) and water purification water outlet (20) are separately positioned on the top of housing (17), raw water inlet (21) is arranged on the bottom of housing (17), be provided with the communication apparatus of communication loop water water outlet (19) and raw water inlet (21) in the outside of housing (17), described inner walls is provided with TiO
2coating, described housing wall is provided with some ultraviolet lamp holes (18), and described housing exterior walls is provided with UV-lamp;
Described strainer comprises sandfiltration pot (5) and manganese sand filter (6);
Described sandfiltration pot (5) comprises the first tank body, described first tank body top is provided with sandfiltration pot water inlet pipe (25), described first tank base is provided with sandfiltration pot rising pipe (26), described first tank body side is provided with sandfiltration pot spigot discharge (27), described first tank body lower part is also provided with sandfiltration pot pillar (28), described sandfiltration pot (5) inside is provided with quartz sand and pebbles, top quartz sand particle size 2-4mm, thick 1.2m, middle part quartz sand particle size 4-8mm, thick 0.3m, lower quartz sand grains footpath 8-16mm, thick 0.3m, pebbles footpath, bottom 16-32mm, thick 0.25m;
Described manganese sand filter (6) comprises the second tank body, and described second tank body top is provided with manganese sand filter water inlet pipe (29), manganese sand filter venting port (30) and joint hinge (31);
The inside of described manganese sand filter (6) is provided with manganese sand and quartz sand, manganese sand grains footpath, top 1-5mm, thick 1.5m, middle part quartz sand particle size 2-4mm, thick 0.35m, bottom quartz sand particle size 4-8mm, thick 0.35m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467833.4A CN103570171B (en) | 2012-08-15 | 2012-08-15 | Equipment for recovering high-salinity high-chroma dyeing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467833.4A CN103570171B (en) | 2012-08-15 | 2012-08-15 | Equipment for recovering high-salinity high-chroma dyeing wastewater |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210289827XA Division CN102774998B (en) | 2012-08-15 | 2012-08-15 | High-salinity high-chromaticity printing and dyeing wastewater recovery process and equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103570171A CN103570171A (en) | 2014-02-12 |
| CN103570171B true CN103570171B (en) | 2015-04-22 |
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| CN104445743A (en) * | 2014-12-15 | 2015-03-25 | 王全勇 | Two-stage catalytic oxidation wastewater treatment system |
| CN104649491B (en) * | 2015-02-09 | 2016-05-18 | 重庆金洋环保工程有限公司 | Industrial wastewater oxidation equipment |
| CN104843901A (en) * | 2015-05-14 | 2015-08-19 | 苏州膜海分离技术有限公司 | Bleaching and dyeing wastewater treatment method with combination of advanced oxidation and ultrafiltration |
| CN105923737A (en) * | 2016-06-17 | 2016-09-07 | 东莞道汇环保科技有限公司 | Method for treating waste water by using advanced oxidation technology |
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| JP2001162273A (en) * | 1999-12-10 | 2001-06-19 | Mitsui Eng & Shipbuild Co Ltd | Water cleaning apparatus |
| KR20060079172A (en) * | 2006-06-15 | 2006-07-05 | (주)미시간기술 | A water and wastewater treatment system and method using advanced oxidation processes(uv with catalyst, fenton, ozone) and pressurized ozone oxidation(aop-po2) |
| CN101503263B (en) * | 2009-03-02 | 2010-12-01 | 山东省高密蓝天节能环保科技有限公司 | Wastewater treatment recycling technique and equipment thereof |
| CN101514061B (en) * | 2009-03-30 | 2011-12-07 | 白妮 | System and method for processing waste water based on photochemical reaction |
| CN201737737U (en) * | 2010-06-22 | 2011-02-09 | 上海师范大学 | Airflow driving inner circulation photocatalysis cylindrical water treatment device |
| CN201981079U (en) * | 2011-02-09 | 2011-09-21 | 杜敦杰 | Oxidation reactor |
| CN201999781U (en) * | 2011-04-26 | 2011-10-05 | 杜敦杰 | Fenton reaction device |
| CN102616881A (en) * | 2012-01-18 | 2012-08-01 | 梁耀彰 | Treatment process for printing and dyeing wastewater |
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