CN217398612U - High COD high salt waste water softens pretreatment systems - Google Patents
High COD high salt waste water softens pretreatment systems Download PDFInfo
- Publication number
- CN217398612U CN217398612U CN202220452295.6U CN202220452295U CN217398612U CN 217398612 U CN217398612 U CN 217398612U CN 202220452295 U CN202220452295 U CN 202220452295U CN 217398612 U CN217398612 U CN 217398612U
- Authority
- CN
- China
- Prior art keywords
- reaction tank
- cod
- waste water
- tank
- tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a high COD high salt waste water softens pretreatment systems, including waste water equalizing basin, one-level reaction tank, concentrated pond, tubular micro-filtration device and decarbonizer, waste water equalizing basin and one-level reaction tank are connected, and one-level reaction tank and concentrated pond are connected, and concentrated pond and tubular micro-filtration device are connected, and tubular micro-filtration device and decarbonizer are connected. The utility model discloses a waste water equalizing basin, tubular micro-filtration product pond, one-level reaction tank, decarbonizer, tubular micro-filtration product pond etc. combine organically for it is lower to handle high salt waste water cost, can realize the water salt separation, realizes fresh water recycle.
Description
Technical Field
The utility model relates to a high COD high salt waste water softens pretreatment systems belongs to the waste water treatment field.
Background
In the industries of inorganic chemical industry, petrochemical industry, coal chemical industry and the like, organic wastewater containing a large amount of toxic and harmful substances is generated, main pollutants of the organic wastewater comprise ammonia nitrogen, cyanides, sulfides, benzene series, phenols, heterocyclic compounds, polycyclic compounds and the like, and COD is often as high as ten thousands. The conventional biochemical treatment process cannot completely treat the sewage, and the existing advanced oxidation technology such as Fenton method and wet catalytic oxidation technology can improve the sewage treatment effect to a certain extent, but has the defects of high operation cost, secondary pollution, troublesome operation and the like. In addition, the Fenton reaction has the defects of high labor intensity, high treatment cost, more sludge, high corrosivity and the like, the treatment effect is poor, along with the increasing strictness of national and local sewage discharge standards, the water quality treated by the conventional process cannot reach the standard and is often discharged, and the refractory and harmful substances in the discharged water have great influence on the environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high COD high salt waste water softens pretreatment systems, it is with low costs to handle high salt waste water, can reduce COD, hardness, basicity and the suspended solid in the waste water, provides the advantage for follow-up membrane concentration processing.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a high COD high salt waste water softens pretreatment systems, includes waste water equalizing basin, one-level reaction tank, concentrated pond, tubular micro-filtration device and decarbonizer, waste water equalizing basin and one-level reaction tank are connected, and one-level reaction tank and concentrated pond are connected, and concentrated pond and tubular micro-filtration device are connected, and tubular micro-filtration device and decarbonizer are connected.
In the high COD high salinity wastewater softening pretreatment system, the system further comprises a second-stage reaction tank, wherein the second-stage reaction tank is arranged between the first-stage reaction tank and the concentration tank, and the first-stage reaction tank is connected with the concentration tank through the second-stage reaction tank.
In the high COD and high salinity wastewater softening pretreatment system, the tubular microfiltration water production tank is further included, and the tubular microfiltration water production tank is connected with the carbon remover.
In the high-COD and high-salinity wastewater softening pretreatment system, the system further comprises a hydrochloric acid adding device and a hydrochloric acid conveying pipe, and the hydrochloric acid adding device is connected with the carbon remover through the hydrochloric acid conveying pipe.
In the high COD high salt wastewater softening pretreatment system, the device further comprises a sludge discharge pipe, wherein a sludge discharge port is formed in the concentration tank, and the sludge discharge pipe is connected with the sludge discharge port.
Among the aforementioned high COD high salt waste water softens pretreatment systems, high COD high salt waste water softens pretreatment systems still includes first softener and adds the device, first softener adds the device and is connected with one-level reaction tank.
Among the aforesaid high COD high salt waste water softens pretreatment systems, high COD high salt waste water softens pretreatment systems still includes the second softener and adds the device, the second softener adds the device and is connected with one-level reaction tank.
Among the aforesaid high COD high salt waste water softens pretreatment systems, high COD high salt waste water softens pretreatment systems still includes the powder active carbon and adds the device, the powder active carbon adds the device and is connected with second grade reaction tank.
Among the aforesaid high COD high salt wastewater softens pretreatment systems, high COD high salt wastewater softens pretreatment systems still includes the circulation back flow, the one end and the tubular micro-filtration device of circulation back flow are connected, and the other end and the concentrated pond of circulation back flow are connected.
Compared with the prior art, the utility model discloses a waste water equalizing basin, tubular micro-filtration product water pond, one-level reaction tank, decarbonizer, tubular micro-filtration product water pond etc. combine organically for it is lower to handle high salt waste water cost, process the utility model discloses molecular state COD, hardness, basicity and the suspended solid in the high salt waste water can be reduced behind the high COD high salt waste water softening pretreatment system, provide the advantage for follow-up membrane concentration treatment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Reference numerals are as follows: 1-a wastewater adjusting tank, 2-a primary reaction tank, 3-a concentration tank, 4-a tubular microfiltration device, 5-a carbon remover, 6-a secondary reaction tank, 7-a circulating reflux pipe, 8-a tubular microfiltration water production tank, 9-a hydrochloric acid adding device, 10-a hydrochloric acid conveying pipe, 11-a sludge discharge pipe, 12-a first softener adding device, 13-a second softener adding device and 14-a powder activated carbon adding device.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Embodiment 1 of the utility model: the utility model provides a high COD high salt waste water softens pretreatment systems, includes waste water equalizing basin 1, one-level reaction tank 2, concentrated pond 3, tubular micro-filtration device 4 and decarbonizer 5, waste water equalizing basin 1 and one-level reaction tank 2 are connected, and one-level reaction tank and concentrated pond 3 are connected, and concentrated pond 3 and tubular micro-filtration device 4 are connected, and tubular micro-filtration device 4 and decarbonizer 5 are connected.
Embodiment 4 of the utility model: the utility model provides a high COD high salt waste water softens pretreatment systems, includes waste water equalizing basin 1, one-level reaction tank 2, concentrated pond 3, tubular micro-filtration device 4 and decarbonizer 5, waste water equalizing basin 1 and one-level reaction tank 2 are connected, and one-level reaction tank and concentrated pond 3 are connected, and concentrated pond 3 and tubular micro-filtration device 4 are connected, and tubular micro-filtration device 4 and decarbonizer 5 are connected. Still include second grade reaction tank 6, second grade reaction tank 6 sets up between first grade reaction tank 2 and concentrated pond 3, first grade reaction tank 2 is connected with concentrated pond 3 through second grade reaction tank 6. This high COD high salt waste water softens pretreatment systems still includes tubular micro-filtration product water tank 8, tubular micro-filtration product water tank 8 is connected with decarbonizer 5. This high COD high salt waste water softens pretreatment systems still includes hydrochloric acid and adds device 9 and hydrochloric acid conveyer pipe 10, hydrochloric acid adds device 9 and is connected with decarbonizer 5 through hydrochloric acid conveyer pipe 10. Further, still include mud pipe 11, be provided with the mud mouth on the concentration tank 3, mud pipe 11 is connected with the mud mouth. Further, the high-COD and high-salinity wastewater softening pretreatment system further comprises a first softener adding device 12 and a second softener adding device 13, wherein the first softener adding device 12 is connected with the primary reaction tank 2. The second softener adding device 13 is connected with the primary reaction tank 2. Further, this high COD high salt waste water softens pretreatment systems still includes powder activated carbon and adds device 14 and circulation back flow 7, powder activated carbon adds device 14 and is connected with second grade reaction tank 6, the one end and the tubular micro-filtration device 4 of circulation back flow 7 are connected, and the other end and the concentrated pond 3 of circulation back flow 7 are connected.
The utility model discloses a theory of operation:
high salt waste water [1] Firstly, the wastewater enters a wastewater adjusting tank 1, is lifted by a pump and then enters a first-stage reaction tank 2, and a first softening agent (the first softening agent can be NaOH or Ca (OH)) is added into the first-stage reaction tank 2 2 Depending on the water quality, only NaOH or Ca (OH) may be added 2 NaOH and Ca (OH) can also be added simultaneously 2 ]And a second softening agent [ Na as the second softening agent ] 2 CO 3 Or Na 2 SO 4 Only one or two of the above-mentioned additives can be added according to the water quality]The magnesium agent is used for increasing the PH value of the high-salinity wastewater to more than 11, reducing the magnesium hardness in the high-salinity wastewater to less than or equal to 20mg/L, reducing the silicon content to less than or equal to 10mg/L and reducing the calcium hardness to less than or equal to 40 mg/L.
The wastewater discharged from the first-stage reaction tank 2 enters a second-stage reaction tank 6, and a certain mesh number and quantity of powdered activated carbon are added according to the inflow rate of water for adsorbing molecular COD in the wastewater.
Then the wastewater together with the sludge enters a concentration tank 3, the wastewater is lifted to a tubular microfiltration device 4 through a tubular membrane circulating pump, large-flow circulating cross flow filtration is carried out between the concentration tank 3 and the tubular microfiltration device 4, the tubular microfiltration circulating flow is 10-20 times of the filtration water production flow, the water production flux of a tubular membrane in the tubular microfiltration device 4 is 100-200 LMH, the tubular membrane water SDI is less than or equal to 3, the turbidity is less than or equal to 1, and the removal rate of the COD of the water is 30-50%; sludge formed after the softening agent is added and the powdered activated carbon absorbing COD are concentrated to a certain concentration in the concentration tank 3 and then discharged. The produced water of the tubular microfiltration device 4 is adjusted to pH 6 by adding hydrochloric acid, the produced water of the pH value adjustment 6 enters the decarbonizer 5, free carbon dioxide in high-salinity wastewater can be removed, and finally the produced water enters the tubular microfiltration water producing tank 8.
[1] The TDS of the high-salinity wastewater is more than or equal to 25000mg/L, the COD of the organic micromolecule state is less than or equal to 500mg/L, the content of suspended solid is 0.1-1 percent, and the high-salinity wastewater has the characteristics of high hardness, high silicate content, high nitrate content and the like.
Claims (9)
1. The utility model provides a high COD high salt waste water softens pretreatment systems which characterized in that, includes waste water equalizing basin (1), one-level reaction tank (2), concentration tank (3), tubular micro-filtration device (4) and decarbonizer (5), waste water equalizing basin (1) and one-level reaction tank (2) are connected, and one-level reaction tank and concentration tank (3) are connected, and concentration tank (3) and tubular micro-filtration device (4) are connected, and tubular micro-filtration device (4) and decarbonizer (5) are connected.
2. The high-COD high-salinity wastewater softening pretreatment system according to claim 1, further comprising a secondary reaction tank (6), wherein the secondary reaction tank (6) is arranged between the primary reaction tank (2) and the concentration tank (3), and the primary reaction tank (2) is connected with the concentration tank (3) through the secondary reaction tank (6).
3. The high-COD and high-salinity wastewater softening pretreatment system according to claim 2, further comprising a tubular microfiltration water production tank (8), wherein the tubular microfiltration water production tank (8) is connected with the carbon remover (5).
4. The high-COD high-salinity wastewater softening pretreatment system according to claim 3, further comprising a hydrochloric acid addition device (9) and a hydrochloric acid delivery pipe (10), wherein the hydrochloric acid addition device (9) is connected with the carbon remover (5) through the hydrochloric acid delivery pipe (10).
5. The high-COD high-salinity wastewater softening pretreatment system according to claim 4, characterized in that it further comprises a sludge discharge pipe (11), the concentration tank (3) is provided with a sludge discharge port, and the sludge discharge pipe (11) is connected with the sludge discharge port.
6. The high-COD and high-salinity wastewater softening pretreatment system according to claim 5, further comprising a first softener addition device (12), wherein the first softener addition device (12) is connected with the primary reaction tank (2).
7. The high-COD high-salinity wastewater softening pretreatment system according to claim 6, characterized in that it further comprises a second softener adding device (13), wherein the second softener adding device (13) is connected with the primary reaction tank (2).
8. The high-COD and high-salinity wastewater softening pretreatment system according to claim 7, further comprising a powdered activated carbon adding device (14), wherein the powdered activated carbon adding device (14) is connected with the secondary reaction tank (6).
9. The high-COD high-salinity wastewater softening pretreatment system according to claim 8, characterized in that the system further comprises a recycle return pipe (7), one end of the recycle return pipe (7) is connected with the tubular microfiltration device (4), and the other end of the recycle return pipe (7) is connected with the concentration tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452295.6U CN217398612U (en) | 2022-03-02 | 2022-03-02 | High COD high salt waste water softens pretreatment systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452295.6U CN217398612U (en) | 2022-03-02 | 2022-03-02 | High COD high salt waste water softens pretreatment systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217398612U true CN217398612U (en) | 2022-09-09 |
Family
ID=83138876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220452295.6U Active CN217398612U (en) | 2022-03-02 | 2022-03-02 | High COD high salt waste water softens pretreatment systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217398612U (en) |
-
2022
- 2022-03-02 CN CN202220452295.6U patent/CN217398612U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105541017B (en) | Method and device for zero emission of strong brine | |
| US7517456B2 (en) | Method for treating landfill leachate | |
| CN103771650B (en) | A kind for the treatment of process of coal gasification waste water | |
| CN107253798B (en) | Advanced treatment and reuse combined process for steel industrial wastewater | |
| CN112374705B (en) | High-salinity wastewater treatment process for iron and steel enterprises | |
| CN111018187A (en) | Wastewater treatment process based on Fenton oxidation reaction | |
| CN105800886A (en) | Resource recycling and treatment technology of high-concentration degradation-resistant salt-containing organic waste water | |
| CN101209886B (en) | Advanced treatment recycling technique of urban sewage | |
| CN112794500B (en) | Coking wastewater strong brine near-zero emission treatment system and treatment method thereof | |
| CN101781048B (en) | Low ammonia nitrogen waste water treatment and recycling method | |
| CN114105412A (en) | Method for integrally treating coking wastewater | |
| CN114716053A (en) | Softening pretreatment method for high-COD high-salinity wastewater | |
| CN105692967A (en) | PVA production apparatus wastewater treatment method | |
| CN217398612U (en) | High COD high salt waste water softens pretreatment systems | |
| KR100332674B1 (en) | Biological Treatment Method of Wastewater Containing Heavy Metals | |
| CN111138040A (en) | Landfill leachate treatment method | |
| CN101830601A (en) | Biological treatment system and method thereof specific to industrial wastewater of fluorescent brightener | |
| CN214735164U (en) | Wastewater treatment system | |
| CN110563223A (en) | process method for treating difficultly degraded COD (chemical oxygen demand) in produced water of high-sulfur-content gas field | |
| CN113582463A (en) | Direct-discharge treatment method for high-salinity fracturing flowback fluid | |
| CN204384996U (en) | Advanced waste treatment system | |
| CN103253836B (en) | A kind of percolate deep purifying treatment unit and method | |
| CN105859035A (en) | Reclaimed water reuse and treatment process | |
| CN215712482U (en) | Advanced treatment and recycling system for comprehensive wastewater of coking plant | |
| CN111470722A (en) | Treatment method of rubber processing wastewater difficult to biodegrade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |