CN212102447U - High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid - Google Patents
High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid Download PDFInfo
- Publication number
- CN212102447U CN212102447U CN201922370730.1U CN201922370730U CN212102447U CN 212102447 U CN212102447 U CN 212102447U CN 201922370730 U CN201922370730 U CN 201922370730U CN 212102447 U CN212102447 U CN 212102447U
- Authority
- CN
- China
- Prior art keywords
- tank
- heavy metal
- waste liquid
- treatment
- waste water
- 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 Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a high concentration oiliness heavy metal waste liquid high efficiency processing system, this system includes the oil removal settling basin that carries out the breakdown of emulsion with high concentration oiliness heavy metal waste liquid, it is used for coagulating the coagulation air supporting pond of air supporting processing waste water to connect the oil removal settling basin, connect the batch reaction tank that the coagulation air supporting pond is used for fenton advanced oxidation processing waste water, connect batch reaction tank and carry out the waste water equalizing basin that separates with muddy water mixture in the waste water, connect the waste water equalizing basin and carry out evaporation treatment's scraper evaporator with filtrating, it is used for carrying out biochemical treatment's hydrolysis acidification pond with the condensate to connect the scraper evaporator, and the play water of connecting the hydrolysis acidification pond is used for membrane filtration to realize muddy water separation's MBR pond. The utility model discloses an it is strong to have breakdown of emulsion ability, and adaptation concentration is high, and recycle is high, the strong effect of purification treatment ability.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, especially, relate to a high-concentration oily heavy metal waste liquid high-efficient processing system.
Background
In the finish machining process of metal products, lubricating oil has the functions of lubrication, cooling and rust prevention, and can not play a role any more in a period of time due to the mixing of impurities and harsh use environment, so that oily waste liquid is formed, the main components of the oily waste liquid are water, vegetable oil, mineral oil, mixed heavy metal components and the like, and the waste liquid can cause serious pollution when entering water or soil and threatens ecological safety.
The conventional treatment method of the waste oil liquid at present is to firstly perform demulsification and oil removal and then perform secondary treatment by using biochemical or other separation reaction technologies, but poor demulsification effect often occurs in operation, the oil content of effluent is high, the stability of a subsequent biochemical unit is affected, and the effect of a biochemical treatment system is further poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem, and provide high concentration oily heavy metal waste liquid high efficiency processing system to the realization has the breakdown of emulsion reinforce, and adaptation concentration is high, and recycle is high, the strong effect of purification treatment ability. In order to achieve the above purpose, the utility model discloses technical scheme as follows:
high concentration oiliness heavy metal waste liquid high efficiency processing system, include the oil removal settling basin that carries out the breakdown of emulsion processing with high concentration oiliness heavy metal waste liquid, connect the oil removal settling basin and be used for coagulating the coagulation air supporting pond of air supporting processing waste water, connect the batch reaction tank that the air supporting pond of coagulating is used for fenton advanced oxidation processing waste water, connect the batch reaction tank and carry out the waste water equalizing basin that separates with muddy water mixture in the waste water, connect the waste water equalizing basin and carry out evaporation treatment's scraper evaporator with filtrating, connect the hydrolysis acidification pond that the scraper evaporator is used for carrying out biochemical treatment with the condensate, and the play water of connecting the hydrolysis acidification pond is used for membrane filtration effect to realize the MBR pond of muddy water separation.
Specifically, sulfuric acid and a demulsifier are added into the oil separation settling tank for demulsification treatment.
Specifically, alkali is added into a preposed reaction tank of the coagulation air floatation tank to neutralize the wastewater, the pH is adjusted to be neutral, and a coagulant PAC and a flocculant PAM are added to enable oil drops and impurities to be mutually condensed.
Specifically, sulfuric acid is added into the batch reaction tank to reduce the pH value, and then ferrous sulfate and hydrogen peroxide are added to carry out Fenton oxidation reaction.
Specifically, the floating oil in the oil separation settling tank, the oil-containing scum in the coagulation air flotation tank and the distillation residue in the scraper evaporator are all collected to an incinerator for incineration treatment.
Specifically, the hydrolysis acidification tank is connected with a hydrolysis sedimentation tank, and supernatant liquid after hydrolysis sedimentation is stored in the hydrolysis sedimentation tank.
Specifically, an anoxic tank for denitrification and an aerobic tank for nitrification are arranged between the hydrolysis sedimentation tank and the MBR tank.
Compared with the prior art, the utility model discloses high concentration oiliness heavy metal waste liquid high efficiency processing system's beneficial effect mainly embodies:
the stock solution sequentially passes through the steps of demulsification treatment, coagulation air flotation, Fenton advanced oxidation, mud-water separation, evaporation treatment, biochemical treatment and MBR filtration treatment, has the effects of strong demulsification capacity, high adaptive concentration, high recycling rate and strong purification treatment capacity, and avoids the defects of poor demulsification effect, high oil content of effluent and the like in the operation of the traditional process equipment.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.
Example (b):
referring to fig. 1, the high-efficiency treatment system for the high-concentration oily heavy metal waste liquid comprises an oil separation settling tank for performing demulsification treatment on the high-concentration oily heavy metal waste liquid, a coagulation air flotation tank connected with the oil separation settling tank and used for performing coagulation air flotation treatment on waste water, a batch reaction tank connected with the coagulation air flotation tank and used for performing fenton advanced oxidation treatment on the waste water, a waste water adjusting tank connected with the batch reaction tank and used for separating mud-water mixtures in the waste water, a scraper evaporator connected with the waste water adjusting tank and used for performing evaporation treatment on filtrate, a hydrolysis acidification tank connected with the scraper evaporator and used for performing biochemical treatment on condensate, and an MBR tank connected with the outlet water of the hydrolysis acidification tank and used for performing mud-water separation under the action.
And adding sulfuric acid and a demulsifier into the oil separation settling tank to perform demulsification treatment.
Alkali is added into a preposed reaction tank of the coagulation air floatation tank to neutralize the wastewater, the pH value is adjusted to be neutral, and a coagulant PAC and a flocculant PAM are added to ensure that oil drops and impurities are mutually coagulated.
And (3) firstly adding sulfuric acid into the batch reaction tank to reduce the pH value, and then adding ferrous sulfate and hydrogen peroxide to carry out Fenton oxidation reaction.
The floating oil in the oil separation settling tank, the oil-containing scum in the coagulation air flotation tank and the distillation residue in the scraper evaporator are all collected to an incinerator for incineration treatment.
The hydrolysis acidification tank is connected with a hydrolysis sedimentation tank, and supernatant liquid after hydrolysis sedimentation is stored in the hydrolysis sedimentation tank.
An anoxic tank for denitrification and an aerobic tank for nitrification are arranged between the hydrolysis sedimentation tank and the MBR tank.
The high-efficiency treatment process of the high-concentration oily heavy metal waste liquid comprises the following steps:
1) and demulsification treatment, namely conveying the high-concentration oily heavy metal waste liquid into an oil separation settling tank through a feed pump, adding sulfuric acid and a demulsifier into the oil separation settling tank, fully mixing and stirring to separate oil from water, and floating oil floats on the water surface by utilizing the density difference of oil, impurities and water. The oil layer is scraped by an oil scraper and then is collected and sent to an incinerator for incineration treatment, and the remaining waste liquid is sent to a coagulation air flotation tank by a lifting pump.
2) And (2) coagulation air flotation treatment, namely adding alkali into a pre-reaction tank of a coagulation air flotation tank to neutralize wastewater, adjusting the pH value to be neutral, adding a coagulant PAC and a flocculant PAM to enable oil drops and impurities to be mutually condensed, carrying the oil drops and the impurities to the surface of a separation area under the wrapping and adhering action of micro bubbles released by compressed air to form an oil sludge layer, scraping oil sludge by a residue scraping plate, collecting oil-containing scum to an incinerator for incineration treatment, and overflowing air flotation effluent to a batch reaction tank for subsequent treatment.
3) Performing Fenton advanced oxidation, namely adding sulfuric acid into a batch reaction tank to reduce the pH value to 3, then adding ferrous sulfate and hydrogen peroxide to perform Fenton oxidation reaction, further removing organic matters in water, adding alkali after the reaction is finished, adjusting the pH value to 8 to enable impurities and heavy metal components in the water to form floccules, and finally adding a flocculating agent to enable the floccules to be coagulated to form a mud-water mixture.
4) And (3) separating mud and water, conveying the mud and water mixture into a plate-and-frame filter press through a filter press conveying pump for filter pressing, and collecting filtrate through a wastewater regulating tank.
5) Evaporating, pumping the filtrate into a scraper evaporator system by a liquid inlet pump for evaporation, collecting the evaporated condensate into an intermediate tank, and collecting the distillation residues into an incinerator for incineration.
6) And (3) biochemical treatment, wherein the effluent of the intermediate tank is sent into a hydrolysis acidification tank through a lifting pump, insoluble organic matters in water are hydrolyzed into soluble organic matters under the action of hydrolysis bacteria and acidification bacteria, and macromolecular substances which are difficult to biodegrade are converted into micromolecular substances which are easy to biodegrade, so that the biodegradability of the wastewater is improved, and a good foundation is provided for subsequent biochemical treatment. And (3) precipitating the water discharged from the hydrolysis acidification tank by using a hydrolysis precipitation tank, then feeding the supernatant into a subsequent anoxic and aerobic process section, and refluxing sludge in the precipitation tank to the hydrolysis acidification tank.
7) Filtering by MBR, passing the effluent of the hydrolysis acidification tank through an anoxic tank, an aerobic tank and an MBR tank in sequence, and performing denitrification of heterotrophic bacteria in an anoxic section to ammoniate (N on an organic chain or amino in amino acid) pollutants such as protein and fat to free ammonia (NH)3、NH4 +) Under the condition of fully supplying oxygen to the aerobic section, the nitrification of autotrophic bacteria can react NH3-N(NH4To NO by oxidation of ++)3 -. The effluent of the aerobic tank enters an MBR tank and then is subjected to sludge-water separation through membrane filtration, the effluent of the membrane enters an MBR effluent tank for waiting for discharge or recycling, the concentrated sludge in the MBR tank returns to the anoxic tank through reflux control, and the sludge water returning to the anoxic tank is subjected to denitrification of the anaerobic bacteriaBy action of NO3 -Is reduced into molecular nitrogen (N)2) Thereby realizing the harmless treatment of the sewage.
The concentration requirements of the system for treating the wastewater are met as the following table 1:
TABLE 1
After the treatment by the system process, the effluent meets the discharge requirement concentration as shown in the following table 2:
| item | COD | SS | NH3-N | TP | pH | Petroleum products | Copper (Cu) | Zinc | Chromium (III) | Nickel (II) | Lead (II) | Cadmium (Cd) |
| Concentration (mg/L) | ＜300 | <50 | <50 | <5 | 6～8 | <10 | <1 | <1 | <0.5 | <0.5 | <0.5 | <0.05 |
TABLE 2
When the embodiment is applied, the oil separation sedimentation tank is connected with a dosing tank for adding the demulsifier, the coagulation air flotation tank is connected with a dosing device for adding PAC and PAM reagents, and the batch reaction tank is connected with a dosing tank for adding Fenton reagents and coagulants. The stock solution sequentially passes through the steps of demulsification treatment, coagulation air flotation, Fenton advanced oxidation, mud-water separation, evaporation treatment, biochemical treatment and MBR filtration treatment, has the effects of strong demulsification capacity, high adaptive concentration, high recycling rate and strong purification treatment capacity, and avoids the defects of poor demulsification effect, high oil content of effluent and the like in the operation of the traditional process equipment.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. High concentration oiliness heavy metal waste liquid high efficiency processing system, its characterized in that: the device comprises an oil separation settling tank for demulsification treatment of high-concentration oily heavy metal waste liquid, a coagulation air flotation tank connected with the oil separation settling tank and used for coagulation air flotation treatment of waste water, a batch reaction tank connected with the coagulation air flotation tank and used for Fenton advanced oxidation treatment of waste water, a waste water adjusting tank connected with the batch reaction tank and used for separating mud-water mixtures in the waste water, a scraper evaporator connected with the waste water adjusting tank and used for evaporation treatment of filtrate, a hydrolysis acidification tank connected with the scraper evaporator and used for biochemical treatment of condensate, and an MBR tank connected with the hydrolysis acidification tank and used for membrane filtration to realize mud-water separation.
2. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 1, which is characterized in that: and adding sulfuric acid and a demulsifier into the oil separation settling tank to perform demulsification treatment.
3. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 1, which is characterized in that: and adding alkali into a preposed reaction tank of the coagulation air floatation tank to neutralize the wastewater, adjusting the pH to be neutral, and adding a coagulant PAC and a flocculant PAM to ensure that oil drops and impurities are mutually coagulated.
4. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 1, which is characterized in that: and firstly adding sulfuric acid into the batch reaction tank to reduce the pH value, and then adding ferrous sulfate and hydrogen peroxide to carry out Fenton oxidation reaction.
5. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 1, which is characterized in that: and floating oil in the oil separation settling tank, oil-containing floating slag in the coagulation air flotation tank and distillation residues in the scraper evaporator are collected to an incinerator for incineration treatment.
6. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 1, which is characterized in that: the hydrolysis acidification tank is connected with a hydrolysis sedimentation tank, and supernatant liquid after hydrolysis sedimentation is stored in the hydrolysis sedimentation tank.
7. The high-efficiency treatment system for the high-concentration oily heavy metal waste liquid according to claim 6, characterized in that: an anoxic tank for denitrification and an aerobic tank for nitrification are arranged between the hydrolysis sedimentation tank and the MBR tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370730.1U CN212102447U (en) | 2019-12-25 | 2019-12-25 | High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370730.1U CN212102447U (en) | 2019-12-25 | 2019-12-25 | High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212102447U true CN212102447U (en) | 2020-12-08 |
Family
ID=73625638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922370730.1U Active CN212102447U (en) | 2019-12-25 | 2019-12-25 | High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212102447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937761A (en) * | 2019-12-25 | 2020-03-31 | 苏州希图环保科技有限公司 | High-efficiency treatment system and process for high-concentration oil-containing heavy metal waste liquid |
| CN114275974A (en) * | 2021-12-29 | 2022-04-05 | 华夏碧水环保科技有限公司 | Treatment process of needle coke wastewater |
-
2019
- 2019-12-25 CN CN201922370730.1U patent/CN212102447U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937761A (en) * | 2019-12-25 | 2020-03-31 | 苏州希图环保科技有限公司 | High-efficiency treatment system and process for high-concentration oil-containing heavy metal waste liquid |
| CN114275974A (en) * | 2021-12-29 | 2022-04-05 | 华夏碧水环保科技有限公司 | Treatment process of needle coke wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110937761A (en) | High-efficiency treatment system and process for high-concentration oil-containing heavy metal waste liquid | |
| CN105948414B (en) | A kind of emulsifying liquid waste water processing system and its treatment process | |
| KR100906395B1 (en) | High Efficient Piggery Wastewater Treatment Apparatus for Treating Piggery Wastewater and Method Thereof | |
| CN109942150B (en) | Treatment method of waste water produced by utilizing waste vegetable oil | |
| CN109437454B (en) | Enhanced physicochemical treatment method and device for refined high-salt high-ammonia special oily sewage | |
| KR100957851B1 (en) | Method of water treatment | |
| CN210711175U (en) | Kitchen garbage anaerobic digestion waste water non-membrane method processing system | |
| CN212102447U (en) | High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid | |
| CN102616987A (en) | System and method for treatment and recycling of coking phenol-cyanogen wastewater | |
| CN111943461A (en) | Electrolytic capacitor and electrode foil wastewater treatment method and treatment system | |
| CN106007234A (en) | UV monomer wastewater up-to-standard treatment system | |
| CN111362534A (en) | Kitchen wastewater treatment system | |
| CN203613075U (en) | Wastewater treatment system | |
| CN210885705U (en) | Reclaimed water recycling system for petrochemical wastewater | |
| CN112209577A (en) | Kitchen wastewater treatment method | |
| CN109851160B (en) | Advanced sewage treatment method | |
| CN111153557A (en) | Integrated treatment device and treatment process for pickling and phosphating production wastewater | |
| CN115367969A (en) | High-concentration water-based ink wastewater treatment method and treatment system | |
| CN202529948U (en) | Treatment and recycling system for coking phenol-cyanogen wastewater | |
| CN115636547A (en) | Single crystal slice sewage treatment system and treatment method thereof | |
| CN212293242U (en) | Electrolytic capacitor and electrode foil wastewater treatment system | |
| CN211546270U (en) | Electroplating effluent discharge water integrated processing apparatus | |
| CN211999387U (en) | Kitchen wastewater treatment system | |
| CN208829510U (en) | A kind of high-concentration organic wastewater treatment system | |
| CN214571360U (en) | Wastewater treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |