CN204298188U - A kind of wastewater treatment equipment - Google Patents
A kind of wastewater treatment equipment Download PDFInfo
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- CN204298188U CN204298188U CN201420712995.XU CN201420712995U CN204298188U CN 204298188 U CN204298188 U CN 204298188U CN 201420712995 U CN201420712995 U CN 201420712995U CN 204298188 U CN204298188 U CN 204298188U
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Abstract
The utility model discloses a kind of wastewater treatment equipment, comprise regulating reservoir, pipe-line mixer, single filter system, cascade filtration system, first-stage reverse osmosis system, two-stage reverse osmosis system and evaporation and crystallization system; The utility model is by the cooperation process of single filter system, cascade filtration system and counter-infiltration system, the penetrating fluid accounting for wastewater volume 88% can be reclaimed reuse as recirculated water, remaining a small amount of seepage remaining liquid carries out evaporative crystallization process further, thus realize waste water, the particularly zero discharge treatment of the waste water that salt content is higher.
Description
Technical field
The utility model belongs to field of industrial waste water treatment, is specifically related to a kind of wastewater treatment equipment that can carry out zero discharge treatment to waste water.
Background technology
In recent years, along with the fast development of China's oil chemical industry, coal chemical industry, the construction scale of industrial circulating cooling water system, chemical water system, steam generator system is all increasing, have problems is a large amount of discharge of wastewater thereupon, this part wastewater discharge accounts for 10% ~ 20% of enterprise water use total amount, and all contains higher salt.Therefore, if this part direct discharging of waste water will be wasted a large amount of water resources.In addition, the discharge of high-salt wastewater not only can destroy the self-purification capacity of local natural water, also can make a very bad impression to water ecological environment, and saline Land problem may be caused to increase the weight of.
The proposition of the Green GDP construction that increasingly serious along with China's water scarcity situation, especially country advocate energetically and recycling economy, makes industrial water saving reduce discharging with utilization of wastewater resource particularly important.Therefore how economical, efficient, improve enterprise's water resources comprehensive utilization rate reliably and even reach " zero-emission " standard, be that enterprise meets country, local government's environmental requirement, establish enterprise and to take responsibility the important process of image.
Utility model content
The purpose of this utility model is to provide a kind of wastewater treatment equipment, to improve wastewater utilization rate, reduces discharge of wastewater.
For achieving the above object, the utility model provides a kind of wastewater treatment equipment, and described wastewater treatment equipment comprises:
Regulating reservoir, for receiving pending waste water and making reception waste water mix;
Pipe-line mixer, to mix with additional flocculating agents for making the waste water from described regulating reservoir and flocculates;
Single filter system, for filtering from the floccule body in the waste water of described pipe-line mixer, suspension and solid phase impurity, described single filter system comprises mechanical filter and piping filter, described mechanical filter is used for filtering the waste water from described pipe-line mixer, and described piping filter is used for filtering the filtrate of described mechanical filter;
Cascade filtration system, described cascade filtration system comprises ultrafiltration apparatus and nanofiltration equipment, described ultrafiltration apparatus is used for carrying out hyperfiltration treatment to the waste water after the process of described single filter system, and described nanofiltration equipment is used for carrying out nanofiltration process to the waste water after described ultrafiltration apparatus process;
First-stage reverse osmosis system, for carrying out reverse-osmosis treated to the waste water after the process of described cascade filtration system;
Two-stage reverse osmosis system, for carrying out reverse-osmosis treated to the seepage remaining liquid of described first-stage reverse osmosis system;
Evaporation and crystallization system, for carrying out evaporative crystallization to the seepage remaining liquid of described two-stage reverse osmosis system.
According to wastewater treatment equipment of the present utility model, preferably, described wastewater treatment equipment also comprises two-stage reverse osmosis system, described two-stage reverse osmosis system is arranged between described first counter-infiltration system and described evaporation and crystallization system, for carrying out second time reverse-osmosis treated to the seepage remaining liquid through described first counter-infiltration system, and seepage remaining liquid is sent to described evaporation and crystallization system.
According to wastewater treatment equipment of the present utility model, preferably, described wastewater treatment equipment also comprises product water tank, and described product water tank is for receiving the penetrating fluid of described first-stage reverse osmosis system and two-stage reverse osmosis system.
According to wastewater treatment equipment of the present utility model, preferably, described wastewater treatment equipment also comprises heat exchanger, and described heat exchanger is arranged between described single filter system and cascade filtration system, for regulating the temperature of the waste water after the process of described single filter system.
According to wastewater treatment equipment of the present utility model, preferably, described first-stage reverse osmosis system comprises:
First booster pump, for carrying out supercharging from the waste water of described cascade filtration system;
First accurate filter, for filtering the waste water from described first booster pump;
First high-pressure pump, for promoting the pressure of the filtrate of described first cartridge filter;
First reverse osmosis equipment, for carrying out reverse-osmosis treated to the waste water from described first high-pressure pump;
First dense water tank, for receiving the seepage remaining liquid of described first-stage reverse osmosis equipment.
According to wastewater treatment equipment of the present utility model, preferably, described two-stage reverse osmosis system comprises:
Second booster pump, for carrying out supercharging from the waste water of described cascade filtration system;
Second accurate filter, for filtering the waste water from described second booster pump;
Second high-pressure pump, for promoting the pressure of the filtrate of described second cartridge filter;
Second reverse osmosis equipment, for carrying out reverse-osmosis treated to the waste water from described second high-pressure pump;
Second dense water tank, for receiving the seepage remaining liquid of described second-level reverse osmosis device.
According to wastewater treatment equipment of the present utility model, preferably, the reverse osmosis membrane that described first reverse osmosis equipment adopts is antipollution complex reverse osmosis membrane; Described second reverse osmosis membrane equipment is disc tube reverse osmosis (dt-ro) film device, oscillatory shear reinforced film equipment or ductwork type reverse osmosis membrane equipment.
Compared with prior art, the utility model is by the cooperation process of single filter system, cascade filtration system and counter-infiltration system, the penetrating fluid accounting for wastewater volume 88% can be reclaimed reuse as recirculated water, remaining a small amount of seepage remaining liquid carries out evaporative crystallization process further, thus realize waste water, the particularly zero discharge treatment of the waste water that salt content is higher, reduces the baneful influence of brine waste discharge to local water environment, alleviates increasingly serious water scarcity situation simultaneously.
In addition; the utility model preferably adopts two-pass RO system further; when processing waste water; two-pass RO system can be made to adopt the low rate of recovery; effectively prevent reverse osmosis membrane surface from occurring concentration polarization phenomenon too early; extend the life cycle of reverse osmosis membrane system, reduce reverse osmosis equipment stop cleaning frequency.
In addition, the utility model carried out ultrafiltration and nanofiltration before counter-infiltration, thus made waste water hardness before entering counter-infiltration system reduce more than 80%, greatly reduced concentration polarization phenomenon and the scale effect of the hardness ions on reverse osmosis membrane surface.Meanwhile, in whole system of the present utility model, investment and the highest part of operating cost are evaporation and crystallization system, and therefore employing firsts and seconds counter-infiltration system reduces the sewage load of evaporation and crystallization system, with investment reduction and operating cost.Waste water handled by two-stage reverse osmosis system is the seepage remaining liquid of first-stage reverse osmosis system, for this reason, the utility model preferably applies the reverse osmosis equipment adopted in percolate system especially, and be successfully applied in brine waste process of the present utility model, efficiently solve brine waste this technical barrier of minimizing process to greatest extent.Save investment and the operating cost of subsequent evaporation crystal system to greatest extent.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of wastewater treatment equipment of the present utility model.
Detailed description of the invention
The utility model provides a kind of wastewater treatment equipment, in the utility model, described wastewater treatment equipment comprises regulating reservoir, pipe-line mixer, single filter system, cascade filtration system, first-stage reverse osmosis system, two-stage reverse osmosis system and evaporation and crystallization system.
In the utility model, those for knowing described in this area of described regulating reservoir, for receiving pending waste water and making reception waste water mix.
In the utility model, described pipe-line mixer is for making the waste water from described regulating reservoir mix with additional flocculating agents and flocculating; Described flocculant be known in the art those, such as aluminum salt flocculant and Ferric Salt Flocculants, be preferably aluminum salt flocculant, to reduce the pollution to subsequent film processing procedure.Described pipe-line mixer be known in the art those, be such as nozzle-type, eddy current type, multiaperture-type or different orifice-plate type blender, the waste water being added with flocculant enters blender and fully mixes with coagulant, form floccule body, be convenient to subsequent mechanical filter and carry out adsorbing, retain, filter.
In the utility model, described single filter system is used for filtering from the floccule body in the waste water of described pipe-line mixer, suspension and solid phase impurity, comprise mechanical filter and piping filter, described mechanical filter be known in the art those, be such as quartz sand, multimedium, active carbon or manganese sand filter, preferred many media, filters, for filtering the waste water from described pipe-line mixer, to filter out most suspension, colloidal substance, COD (COD) value of waste water can also be made to reduce about 10%.Described piping filter can be well known in the art those, be such as Y type or basket filter, preferred y-type filter, for filtering the filtrate of described mechanical filter, prevents the filtrate in small, broken bits of mechanical filter from revealing and scratching the machinery that subsequent ultrafiltration equipment membrane component causes.
In the utility model, described cascade filtration system comprises ultrafiltration apparatus and nanofiltration equipment, described ultrafiltration apparatus is used for carrying out hyperfiltration treatment to the waste water after the process of described single filter system, and described nanofiltration equipment is used for carrying out nanofiltration process to the waste water after described ultrafiltration apparatus process.Described ultrafiltration apparatus can be known in the art those, be such as the commercial ultra-filtration equipment of Tao Shi, GE or Dong Li company, make the SDI (pollution index)≤3 of ultra-filtration water, to ensure the normal operation of follow-up counter-infiltration system; Described nanofiltration equipment be known in the art those, be such as the commercially available nanofiltration equipment of Tao Shi, GE or Dong Li company, more than 80% is reduced to make the total hardness of waste water, reduce fouling tendency ion to greatest extent to accumulate in reverse osmosis membrane and supersaturation precipitation, for the long-period stable operation of follow-up reverse osmosis membrane system lays the foundation.
In the utility model, described first-stage reverse osmosis system is used for carrying out reverse-osmosis treated to the waste water after the process of described cascade filtration system.In one preferably embodiment, described first-stage reverse osmosis system comprises the first booster pump, the first accurate filter, the first high-pressure pump, the first reverse osmosis equipment and the first dense water tank, wherein, described first booster pump is used for carrying out supercharging from the waste water of described cascade filtration system, obtains enough pressure filter through described first accurate filter to make waste water energy; First accurate filter is used for filtering the waste water from described first booster pump, normally runs to protect described first reverse osmosis equipment.Described first accurate filter can be known in the art those; be also called cartridge filter; its material for core can be sintering chimney filter, fusion-jet type fabric filter element and honeycomb filter core etc.; preferred honeycomb filter core; be convenient to change, be conducive to Operation and Maintenance and the management of equipment, secondary filter equipment filtering accuracy is 5 μm; to prevent large particulate matter from entering described first reverse osmosis equipment, the reverse osmosis membrane of described first reverse osmosis equipment is protected not scratched by machinery to greatest extent.Described first high-pressure pump for promoting the pressure of the filtrate of described first accurate filter so that smoothly and carry out reverse-osmosis treated.
Described first reverse osmosis equipment is used for carrying out reverse-osmosis treated to the waste water from described first high-pressure pump.Described first reverse osmosis equipment can be those reverse osmosis equipments known in the art, such as Tao Shi, section's formula, day east electrician or the commercially available reverse osmosis equipment of Dong Li company, preferably, the reverse osmosis membrane that described first counter-infiltration adopts is antipollution complex reverse osmosis membrane, the BW30XFR--400/34i type antipollution complex reverse osmosis membrane of such as Dow Chemical, because waste water turbidity after aforementioned processing is low, hardness is low, and TDS (dissolvability solid amount) value is higher, traditional antipollution complex reverse osmosis membrane is used to meet the demands.After reverse osmosis deaslination process, can, Waste water concentrating to higher concentration, wastewater flow rate be greatly reduced, contribute to the scale and the cost of investment that reduce subsequent evaporation crystal system.Described first dense water tank is for receiving the seepage remaining liquid of described first reverse osmosis equipment.The penetrating fluid of described first reverse osmosis equipment can directly utilize as the recirculated water in enterprise.
In the utility model, described two-stage reverse osmosis system is used for carrying out reverse-osmosis treated to the seepage remaining liquid of described first counter-infiltration system.Preferably, described two-stage reverse osmosis system comprises the second booster pump, the second accurate filter, the second high-pressure pump, the second reverse osmosis equipment and the second dense water tank, wherein, described second booster pump is used for carrying out supercharging to the seepage remaining liquid from described first-stage reverse osmosis system; Described second accurate filter is used for filtering the waste water from described second booster pump; Described second high-pressure pump is for promoting the pressure of the filtrate of described second accurate filter; Described second reverse osmosis equipment be used for reverse-osmosis treated is carried out to the waste water from described second high-pressure pump, the second reverse osmosis equipment be known in the art those.Water inlet due to the second reverse osmosis equipment is the seepage remaining liquid of the first reverse osmosis equipment, its TDS, hardness Deng Cheng branch is multiplied, in order to process this seepage remaining liquid better, preferably, described second reverse osmosis equipment is the disc tube reverse osmosis (dt-ro) equipment of Pall company of the U.S., the oscillatory shear reinforced film equipment of New Logic company of the U.S. or the ductwork type reverse osmosis membrane equipment of German tenche company, although the said equipment is traditionally applied to percolate system, but apply it in the middle of brine waste process field, effectively can solve brine waste process this technical barrier of minimizing process to greatest extent equally.Described second dense water tank is for receiving the seepage remaining liquid of described second reverse osmosis equipment, and the penetrating fluid of described second reverse osmosis equipment can directly utilize as the recirculated water in enterprise.
In the utility model, described evaporation and crystallization system is for making the seepage remaining liquid evaporative crystallization of described two-stage reverse osmosis system, described evaporation and crystallization system is known in the art, can be such as crystallizing evaporator or evaporation pond, if enterprise's land used is nervous, crystallizing evaporator can be selected to take up an area with saving equipment; If enterprise's land used is more, especially Northwest inland area, wasteland is more, dry, preferably uses evaporation pond process seepage remaining liquid.A large amount of afterheat steams is contained in general factory, and described evaporation and crystallization system can utilize the low-quality afterheat steam of factory as thermal source, this part afterheat steam is introduced evaporation and crystallization system, greatly can reduce the operating cost of evaporation crystallization equipment.
In one preferably embodiment, described wastewater treatment equipment also comprises heat exchanger, described heat exchanger is arranged between described single filter system and cascade filtration system, to regulate the inflow temperature of described cascade filtration system, the temperature comparing cascade filtration system is as will be described adjusted to 5 DEG C ~ 30 DEG C, preferably 20 DEG C ~ 25 DEG C, to ensure the normal work of subsequent ultrafiltration, nanofiltration, counter-infiltration system film device, reduce to filter pressure drop; Described heat exchanger can be known in the art those, such as plate type heat exchanger or tubular heat exchanger, preferred plate type heat exchanger.
In one preferred embodiment, described wastewater treatment equipment also comprises product water tank, and described product water tank for receiving the penetrating fluid of described first-stage reverse osmosis system and two-stage reverse osmosis system, and is sent as recirculated water.
Utilize the step of the utility model process waste water to comprise: a, waste water to be introduced regulating reservoir and carry out homogeneous and all measure adjustment, in the waste water after regulating, add flocculant and waste water is fully flocculated in pipe-line mixer; B, the waste water utilizing described mechanical filter and piping filter treatment step a to obtain, to remove floccule body, suspension and the solid phase impurity in waste water, make delivery turbidity≤5NTU; C, utilize described ultrafiltration apparatus to carry out ultrafiltration to the waste water that step b obtains, make ultra-filtration water SDI≤3; Utilize described nanofiltration equipment to carry out nanofiltration to described ultra-filtration water, make the hardness of ultra-filtration water reduce more than 80%; D, carry out reverse-osmosis treated to the waste water that step c obtains, and carry out evaporative crystallization to the seepage remaining liquid obtained after reverse-osmosis treated, the TDS≤1000mg/L of gained penetrating fluid, is sent to circulation.
In the utility model, preferably, the TDS value of described waste water is not less than 1500mg/L, more preferably 2000mg/L ~ 6000mg/L, is further preferably 3000mg/L ~ 5000mg/L; The turbidity of described waste water is not less than 10NTU, more preferably 10-25NTU, be further preferably 15-20NTU, and the COD value of described waste water is not less than 100mg/L, more preferably 100-250m g/L, is further preferably 150-200mg/L.It will be understood by those skilled in the art that the These parameters value of described waste water is less, process simpler.More preferably, described waste water is the waste water that petrochemical industry or coal chemical industry enterprises are discharged, comprise water in water circulating system with water, chemical water System drainage and steam generator system sewer, wherein chemical water System drainage comprises the backwashing water of each equipment in wastewater treatment equipment of the present utility model, such as hyperfiltration reverse-rinsing water, nanofiltration backwash water etc.
In the utility model, preferably, the secondary reverse-osmosis treated that reverse-osmosis treated in steps d comprises a reverse-osmosis treated and carries out the seepage remaining liquid of a described reverse-osmosis treated, wherein, TDS≤the 500mg/L of the penetrating fluid of a described reverse-osmosis treated, output is the 60%-70% of the wastewater flow of a described reverse-osmosis treated; TDS≤the 1000mg/L of the penetrating fluid of described secondary reverse-osmosis treated, output is the 70%-80% of the wastewater flow of described two-pass reverse osmosis process.
In the utility model, preferably, in step c, the waste water that described step b obtains also is added with bactericide before carrying out ultrafiltration.Before ultra-filtration filters, add bactericide can carry out sterilization processing to waste water, after preventing entering ultra-filtration filters, form bacterium, algal bloom grows and cause milipore filter dirty stifled, thus affecting exerting oneself of ultrafiltration apparatus, cause stop cleaning.In addition, bactericide adds after single filter system, makes sterilization and flocculation separately process, prevents the effect of influencing each other of flocculant and bactericide medicament and affects the performance of drug effect.Further preferably, in step c, before waste water carries out ultrafiltration, utilize heat exchanger that temperature is adjusted to 5 DEG C-30 DEG C, be more preferably 20 DEG C-25 DEG C.
Further the utility model is described below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, the wastewater flow of certain enterprise discharge is 200m
3/ h, the TDS of described waste water is about 4000mg/L ~ 5000mg/L, and turbidity is about 10-20NTU, and COD value is about 150-200mg/L.First described waste water introduced regulating reservoir 1 and carried out homogeneous and all measure adjustment, then deliver in pipe-line mixer 2 and fully mix with the aluminum salt flocculant added, produce flocculation, form bulky grain floccule body, send in single filter system 3 and filter, filter through mechanical filter 31 in single filter system 3, retain more than 99% bulky grain suspended material, more than 80% colloidal substance, delivery turbidity≤5NTU, COD value is about 150mg/L, then removes impurity further through piping filter 32.Waste water after single filter system 3 processes enters heat exchanger 4 and adjusts the temperature to 22 DEG C ~ 25 DEG C, enter cascade filtration system 5, residue colloidal substance is removed through ultrafiltration apparatus 51 in cascade filtration system 5, ultra-filtration water turbidity≤0.5NTU, water outlet SDI≤3, ultra-filtration water enters nanofiltration equipment 52, and nanofiltration makes useless hardness of water reduce more than 80%.First-stage reverse osmosis system 6 is entered through removing the waste water firmly, the first reverse osmosis equipment 64 is entered successively through the first booster pump 61, first accurate filter 62, first high-pressure pump 63, the seepage remaining liquid obtained enters the first dense water tank 65, wherein penetrating fluid accounts for 60% of the waste water total flow entering first-stage reverse osmosis system, its TDS≤500mg/L, residue 40% is seepage remaining liquid, and its TDS is at 8000mg/L ~ 12000mg/L.Seepage remaining liquid in described first dense water tank 65 is as the former water of two-stage reverse osmosis system 7, enter two-stage reverse osmosis system 7 and carry out reverse-osmosis treated, the second reverse osmosis equipment 74 is entered successively through the second booster pump 71, second accurate filter 72, second high-pressure pump 73, the seepage remaining liquid obtained enters the second dense water tank 75, wherein penetrating fluid accounts for 70% of the wastewater flow of two-stage reverse osmosis system, its TDS≤1000mg/L, the TDS >=25000mg/L of seepage remaining liquid.The penetrating fluid of described first-stage reverse osmosis system and two-stage reverse osmosis system pools together and enters product water tank 9 as the use of recirculated water supply enterprise.The comprehensive recovery of above-mentioned waste water is about 88%, reclaims water yield 176m
3/ h.The seepage remaining liquid of described two-stage reverse osmosis system 7 sends into evaporative crystallization in crystallizing evaporator 8 further, and the steam of gained can be recycled after condensation, thus realizes wastewater zero discharge.
Claims (7)
1. a wastewater treatment equipment, described wastewater treatment equipment comprises:
Regulating reservoir, for receiving pending waste water and making reception waste water mix;
Pipe-line mixer, to mix with additional flocculating agents for making the waste water from described regulating reservoir and flocculates;
Single filter system, for filtering from the floccule body in the waste water of described pipe-line mixer, suspension and solid phase impurity, comprise mechanical filter and piping filter, described mechanical filter is used for filtering the waste water from described pipe-line mixer, and described piping filter is used for filtering the filtrate of described mechanical filter;
Cascade filtration system, described cascade filtration system comprises ultrafiltration apparatus and nanofiltration equipment, described ultrafiltration apparatus is used for carrying out hyperfiltration treatment to the waste water after the process of described single filter system, and described nanofiltration equipment is used for carrying out nanofiltration process to the waste water after described ultrafiltration apparatus process;
First-stage reverse osmosis system, for carrying out reverse-osmosis treated to the waste water after the process of described cascade filtration system;
Two-stage reverse osmosis system, for carrying out reverse-osmosis treated to the seepage remaining liquid of described first-stage reverse osmosis system;
Evaporation and crystallization system, for making the seepage remaining liquid evaporative crystallization of described two-stage reverse osmosis system.
2. wastewater treatment equipment according to claim 1, is characterized in that, described wastewater treatment equipment also comprises product water tank, and described product water tank is for receiving the penetrating fluid of described first-stage reverse osmosis system and two-stage reverse osmosis system.
3. wastewater treatment equipment according to claim 1, it is characterized in that, described wastewater treatment equipment also comprises heat exchanger, and described heat exchanger is arranged between described single filter system and cascade filtration system, for regulating the temperature of the waste water after the process of described single filter system.
4. wastewater treatment equipment according to claim 1, is characterized in that, described first-stage reverse osmosis system comprises:
First booster pump, for carrying out supercharging from the waste water of described cascade filtration system;
First cartridge filter, for filtering the waste water from described first booster pump;
First high-pressure pump, for promoting the pressure of the filtrate of described first cartridge filter;
First reverse osmosis equipment, for carrying out reverse-osmosis treated to the waste water from described first high-pressure pump;
First dense water tank, for receiving the seepage remaining liquid of described first-stage reverse osmosis equipment.
5. wastewater treatment equipment according to claim 1, is characterized in that, described two-stage reverse osmosis system comprises:
Second booster pump, for carrying out supercharging from the waste water of described cascade filtration system;
Second cartridge filter, for filtering the waste water from described second booster pump;
Second high-pressure pump, for promoting the pressure of the filtrate of described second cartridge filter;
Second reverse osmosis equipment, for carrying out reverse-osmosis treated to the waste water from described second high-pressure pump;
Second dense water tank, for receiving the seepage remaining liquid of described second-level reverse osmosis device.
6. the wastewater treatment equipment according to any one of claim 1-5, is characterized in that, the reverse osmosis membrane that described first reverse osmosis equipment adopts is antipollution complex reverse osmosis membrane.
7. the wastewater treatment equipment according to any one of claim 1-5, is characterized in that, described second reverse osmosis equipment is disc tube reverse osmosis (dt-ro) film device, oscillatory shear reinforced film equipment or ductwork type reverse osmosis membrane equipment.
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| CN201420712995.XU CN204298188U (en) | 2014-11-24 | 2014-11-24 | A kind of wastewater treatment equipment |
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| CN201420712995.XU CN204298188U (en) | 2014-11-24 | 2014-11-24 | A kind of wastewater treatment equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445774A (en) * | 2014-11-24 | 2015-03-25 | 神华集团有限责任公司 | Wastewater treating device and method |
| CN105858936A (en) * | 2016-06-13 | 2016-08-17 | 长沙威保特环保科技股份有限公司 | Dish pipe type reverse osmosis sewage treating method and system |
| CN109665645A (en) * | 2019-01-24 | 2019-04-23 | 杭州大地海洋环保股份有限公司 | A kind of waste water treatment system |
| CN113860611A (en) * | 2021-09-30 | 2021-12-31 | 广州市迈源科技有限公司 | Aging landfill leachate treatment process and treatment system |
-
2014
- 2014-11-24 CN CN201420712995.XU patent/CN204298188U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445774A (en) * | 2014-11-24 | 2015-03-25 | 神华集团有限责任公司 | Wastewater treating device and method |
| CN105858936A (en) * | 2016-06-13 | 2016-08-17 | 长沙威保特环保科技股份有限公司 | Dish pipe type reverse osmosis sewage treating method and system |
| CN105858936B (en) * | 2016-06-13 | 2019-04-05 | 湖南北控威保特环境科技股份有限公司 | A kind of disc tube reverse osmosis (dt-ro) sewage water treatment method and system |
| CN109665645A (en) * | 2019-01-24 | 2019-04-23 | 杭州大地海洋环保股份有限公司 | A kind of waste water treatment system |
| CN113860611A (en) * | 2021-09-30 | 2021-12-31 | 广州市迈源科技有限公司 | Aging landfill leachate treatment process and treatment system |
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