CN111573972A - Grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching treatment system and process - Google Patents
Grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching treatment system and process Download PDFInfo
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- CN111573972A CN111573972A CN202010376793.2A CN202010376793A CN111573972A CN 111573972 A CN111573972 A CN 111573972A CN 202010376793 A CN202010376793 A CN 202010376793A CN 111573972 A CN111573972 A CN 111573972A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a grinding ultrasonic cleaning wastewater zero-emission recycling or standard-reaching treatment system and process, which comprises an intermediate regulating water tank, an electrolytic air flotation slag scraping device, a sludge tank, a sludge pressure filter tank, a reaction sedimentation tank, a sedimentation tank and a retreatment device, wherein a water outlet of the intermediate regulating water tank is connected with a water inlet of the electrolytic air flotation slag scraping device, a sludge outlet of the intermediate regulating water tank is connected with a sludge inlet of the sludge tank, a sludge outlet of the sludge tank is connected with a sludge inlet of the sludge pressure filter tank, a sludge outlet of the electrolytic air flotation slag scraping device is connected with a sludge inlet of the sludge tank, a water outlet of the reaction sedimentation tank is connected with a water inlet of the sedimentation tank, a sludge outlet of the sedimentation tank is connected with a sludge inlet of the sludge tank, and a water outlet of the sedimentation tank is connected with a. The invention integrates the characteristics of various grinding ultrasonic cleaning wastewater, brightener, catalyst, cleaning agent and other polluted wastewater, and the proposed grinding ultrasonic cleaning wastewater treatment zero-emission recycling or standard-emission treatment process can realize zero-emission recycling or standard-emission.
Description
Technical Field
The invention relates to the technical field of grinding ultrasonic cleaning wastewater, in particular to a zero-emission recycling or standard-reaching treatment system and process for grinding ultrasonic cleaning wastewater.
Background
The main characteristics of the waste water are: organic pollutants with high concentration and containing metal or heavy metal ions AL3+、Ni2+、Fe2+、P3-、Cu2+The organic matters and the metal surface active agent with larger content have larger harmfulness, and belong to the industrial class strictly controlled by the statePollutants, which are discharged directly without treatment, have a serious impact on the surrounding ecological environment and affect the physical and mental health of surrounding residents. According to the regulations of environmental protection departments, the sewage needs to be comprehensively treated to achieve zero-emission recycling or be discharged when reaching the standard.
Disclosure of Invention
The invention aims to provide a grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching treatment system and process, integrates various characteristics of grinding ultrasonic cleaning wastewater, brightening agent, catalyst, cleaning agent and other polluted wastewater, can realize zero-discharge recycling or standard-reaching discharge by the provided grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching discharge treatment process, and can solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
grind ultrasonic cleaning waste water zero release retrieval and utilization or processing system up to standard, scrape sediment equipment, sludge impoundment, mud pressure filter, reaction sedimentation tank, sedimentation tank and retreatment equipment including middle regulation pond, electrolytic air supporting, the delivery port in middle regulation pond is connected electrolytic air supporting and is scraped the water inlet of sediment equipment, the mud mouth that advances of sludge impoundment is connected to the play mud mouth in middle regulation pond, the mud mouth that advances in mud pressure filter is connected to the mud mouth in sludge impoundment, electrolytic air supporting scrapes the water inlet of the delivery port connection reaction sedimentation tank of sediment equipment, and electrolytic air supporting scrapes the mud mouth that advances of sludge impoundment connection sludge impoundment, and the water inlet of sedimentation tank is connected to the delivery port of sedimentation tank, the water inlet of retreatment equipment is connected to the delivery port of sedimentation tank.
Furthermore, the middle adjusting water tank is divided into three grid cavities through a partition plate A and a partition plate B, an overflow port A is formed in the lower center end of the partition plate A, an overflow port B is formed in the upper center end of the partition plate B, and a pumping equipment point is arranged in one of the grid cavities of the middle adjusting water tank.
Furthermore, the reprocessing equipment comprises a comprehensive filter, an ion exchanger, a biochemical aeration tank, an ozone catalytic oxidation tank, an MBR membrane tank and an evaporation tank, wherein valve switches are respectively arranged on pipelines connected with the sedimentation tank and connected with each branch of the comprehensive filter, the ion exchanger, the biochemical aeration tank, the ozone catalytic oxidation tank, the MBR membrane tank and the evaporation tank.
Further, the comprehensive filter is one of a cloth bag filter, an activated carbon filter and a quartz sand filter.
Furthermore, a sewage outlet of the sludge pressure filter is connected with a sewage inlet of the middle adjusting water tank.
The invention provides a treatment process of a grinding ultrasonic cleaning wastewater zero-discharge recycling or standard treatment system, which comprises the following steps:
step 1: grinding polishing or ultrasonic cleaning wastewater is converged into an intermediate regulating water tank, sewage in the intermediate regulating water tank is conveyed to an electrolytic air-flotation slag scraping device by a sewage lifting pump for electrolytic air-flotation slag scraping, and meanwhile, sludge in the intermediate regulating water tank is conveyed to a sludge tank by a submerged sewage pump;
step 2: conveying the sewage in the electrolytic air flotation slag scraping equipment to a reaction sedimentation tank, and conveying the sludge in the electrolytic air flotation slag scraping equipment to a sludge tank;
and step 3: the sewage of the reaction sedimentation tank is conveyed to the sedimentation tank, the sewage of the sedimentation tank is conveyed to retreatment equipment for selective treatment, and meanwhile, the sludge of the sedimentation tank is conveyed to a sludge tank.
Furthermore, the floating oil in the middle adjusting water tank is removed by manual fishing.
And further, the sludge in the sludge tank obtained in the steps 1-3 is conveyed to a sludge filter-pressing tank after being treated, and filter-pressing water generated in the sludge treatment process flows back to the intermediate regulating water tank by the sludge filter-pressing tank.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention leads the wastewater to overflow from low to high according to the original wastewater quality and the required requirements, has the functions of pre-precipitating the wastewater and balancing the wastewater quality and the water quantity, and has wide application, such as the treatment of hardware grinding and polishing cleaning, stone glass grinding and polishing cleaning, plastic polishing and cleaning wastewater and the like.
2. The process has strong operability, can completely realize the automatic functions of man-machine conversation and the like, and solves the problems of high waste water treatment cost, large maintenance amount, difficult zero-emission recycling, difficult standard-reaching emission treatment and the like in the prior art.
3. The equipment of the invention has small occupied area, can be completely made into attractive and compact integrated equipment, is convenient to operate, has low process investment cost, is simple and convenient to install and saves operation cost.
4. The invention can remove metal ions in the wastewater more thoroughly, effectively further reduce the chromaticity and organic pollutants, solve the problem that the chromaticity, suspended matters and organic pollutants cannot reach the standard in the past, and have high treatment efficiency and stable effluent water quality.
5. The invention has wide prospect, and the precision industries such as hardware, plastic, glass, stone, ceramics and the like at home and abroad relate to smooth cleaning in production, and the wastewater produced after cleaning has the problems of difficult biochemistry, high evaporation cost and the like, and the wastewater treatment process is suitable.
Drawings
FIG. 1 is a diagram of a zero-discharge recycling or standard-reaching treatment system for grinding ultrasonic cleaning wastewater according to the present invention;
FIG. 2 is a block diagram of the intermediate conditioning tank of the present invention;
FIG. 3 is a process flow diagram of the present invention.
In the figure: 1. a middle adjusting water tank; 11. a separator A; 111. an overflow port A; 12. a partition board B; 121. an overflow port B; 2. electrolytic air flotation residue scraping equipment; 3. a sludge tank; 4. a sludge pressure filter; 5. a reaction sedimentation tank; 6. a sedimentation tank; 7. and (4) reprocessing the equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the grinding ultrasonic cleaning wastewater zero-emission recycling or standard-reaching treatment system comprises an intermediate regulation water tank 1, an electrolytic air flotation slag scraping device 2, a sludge tank 3, a sludge press filtration tank 4, a reaction sedimentation tank 5, a sedimentation tank 6 and a retreatment device 7, wherein a water outlet of the intermediate regulation water tank 1 is connected with a water inlet of the electrolytic air flotation slag scraping device 2, so that the sewage in the intermediate regulation water tank 1 is conveyed to the electrolytic air flotation slag scraping device 2, a sludge outlet of the intermediate regulation water tank 1 is connected with a sludge inlet of the sludge tank 3, the sludge generated in the intermediate regulation water tank 1 is conveyed to the sludge tank 3, a sludge outlet of the sludge tank 3 is connected with a sludge inlet of the sludge press filtration tank 4, the sludge treated in the sludge tank 3 is conveyed to the sludge press filtration tank 4 for sludge press filtration treatment, a water outlet of the electrolytic air flotation slag scraping device 2 is connected with a water inlet of the reaction sedimentation tank 5, the sewage in the electrolytic air flotation slag scraping device 2, mud inlet that mud pond 3 was connected to the mud mouth that goes out of sediment equipment 2 is scraped in electrolysis air supporting, the mud of bottom is carried to sludge impoundment 3 processing in the sediment equipment 2 is scraped in electrolysis air supporting, the water inlet of sedimentation tank 6 is connected to the delivery port of reaction sedimentation tank 5, the sewage of reaction sedimentation tank 5 is carried to sedimentation tank 6 further precipitation, the mud mouth that goes out of sedimentation tank 6 is connected and is connected sludge impoundment 3 of sedimentation tank, the mud through the precipitation in the sedimentation tank 6 is carried to sludge impoundment 3, the water inlet of retreatment equipment 7 is connected to the delivery port of sedimentation tank 6, through the sewage after the sedimentation treatment in the sedimentation tank 6, according to quality of water and demand, can handle according to retreatment equipment 7 selection relevant water treatment process again.
As shown in figure 2, the capacity of the intermediate regulation water tank is about one day or more, the intermediate regulation water tank 1 is divided into three grid cavities by a partition plate A11 and a partition plate B12, the lower end of the center of the partition plate A11 is provided with an overflow port A111, the upper end of the center of the partition plate B12 is provided with an overflow port B121, a pumping equipment point is arranged in one grid cavity of the intermediate regulation water tank 1, and wastewater overflows from low to high grid by grid through the overflow port A111 and the overflow port B121 which are arranged at high and low levels.
The reprocessing equipment 7 comprises a comprehensive filter 71, an ion exchanger 72, a biochemical aeration tank 73, an ozone catalytic oxidation tank 74, an MBR membrane tank 75 and an evaporation tank 76, wherein valve switches are respectively arranged on pipelines connecting each branch of the comprehensive filter 71, the ion exchanger 72, the biochemical aeration tank 73, the ozone catalytic oxidation tank 74, the MBR membrane tank 75 and the evaporation tank 76 with the sedimentation tank 6, so that the comprehensive filter 71, the ion exchanger 72, the biochemical aeration tank 73, the ozone catalytic oxidation tank 74, the MBR membrane tank 75 and the evaporation tank 76 can be selected to be in butt joint with the sedimentation tank 6 through the valve switches, and the treatment process can be selected as required.
The integrated filter 71 is one of a cloth bag filter, an activated carbon filter and a quartz sand filter.
The sewage outlet of the sludge pressure filter 4 is connected with the sewage inlet of the intermediate regulation water tank 1, so that the filter pressing water in the sludge pressure filter 4 can flow back to the intermediate regulation water tank 1.
As shown in fig. 3, in order to better show the treatment process of the grinding ultrasonic cleaning wastewater zero-discharge recycling or standard treatment system, the embodiment provides a treatment process of the grinding ultrasonic cleaning wastewater zero-discharge recycling or standard treatment system, which includes the following steps:
step 1: grinding polishing or ultrasonic cleaning wastewater is converged into the intermediate regulation water tank 1, oil floats upwards, the floating oil is periodically and manually fished out, large particles naturally settle, SS and subsequent treatment load are reduced, water quality is balanced, wastewater treatment is more stable and consistent, operability of wastewater treatment is improved, labor cost and labor intensity are reduced, a sewage lifting pump is adopted to convey sewage in the intermediate regulation water tank 1 to an electrolytic air-flotation residue scraping device 2 for electrolytic air-flotation residue scraping, and meanwhile, sludge in the intermediate regulation water tank 1 is conveyed to a sludge tank 3 by a submerged sewage pump for sludge treatment;
step 2: the sewage in the electrolytic air flotation residue scraping device 2 is conveyed to a reaction sedimentation tank 5, a series of reactions such as emulsion breaking, coagulation, PH regulation, flocculation reaction sedimentation and the like are carried out in the reaction sedimentation tank 5, the sludge in the electrolytic air flotation residue scraping device 2 is conveyed to a sludge tank 3, and the sludge is treated uniformly by the sludge tank 3;
and step 3: the sewage of the reaction sedimentation tank 5 is conveyed to a sedimentation tank 6, primary sedimentation and secondary sedimentation are carried out in the sedimentation tank 6, the effluent is more stable, the effect is more obvious, the sewage of the sedimentation tank 6 is conveyed to retreatment equipment 7 for selective treatment, such as comprehensive filtration, ion exchange, biochemical aeration, ozone oxidation, MBR, evaporation and the like, meanwhile, the sludge of the sedimentation tank 6 is conveyed to a sludge tank 3, and the sludge is uniformly treated by the sludge tank 3.
The sludge in the sludge tank 3 is treated and then is conveyed to the sludge filter-pressing tank 4, the sludge filter-pressing tank 4 reflows filter-pressing water generated in the sludge treatment process to the intermediate regulation water tank 1 for circulating treatment again until the filter-pressing water is thoroughly treated, and the sludge in the sludge filter-pressing tank 4 is transported outwards.
The invention pumps the waste water in the middle adjusting water tank 1 into the electrolytic air flotation residue scraping device 2 by a submersible sewage pump, and the electrolytic flocculation method is adopted to treat the production waste water, thereby obtaining satisfactory results. In the electrolytic process of the waste water, four effects can be generally generated, namely electrolytic oxidation, electrolytic reduction, electrolytic flocculation and electrolytic air flotation, and the four effects are specifically as follows:
1. electrolytic oxidation
The oxidation in the electrolytic process can be classified as direct oxidation, i.e. the oxidation occurs when the pollutants directly lose electrons at the anode; and indirect oxidation, using anions of lower electrode potential in solution, e.g. OH-、Cl-Active material Cl which loses electrons at anode and generates new stronger oxidant2And the like. The active substances are used for removing electrons from the pollutants, and the pollutants are subjected to oxidative decomposition to reduce BOD in the stock solution5、COD、NH3-N, etc.
2. Electrolytic reduction
The reduction in the electrolysis process can also be divided into two categories. One is direct reduction, i.e., the contaminant directly gains electrons at the cathode and reduction occurs. The other is indirect reduction, and the positive ions in the pollutants firstly obtain electrons at the cathode, so that the high-valence or low-valence metal positive ions in the electrolyte obtain electrons at the cathode and are directly reduced into low-valence positive ions or metal precipitates.
3. Electrolytic flocculation
After the soluble anode is electrified with direct current, the anode loses electrons to form metalCation, with OH in solution-The generated metal hydroxide colloid flocculant has strong adsorption capacity, and can adsorb and coprecipitate pollutants in the wastewater for removal.
4. Electrolytic air flotation
The electrolytic flotation is to electrolyze the waste water, and when the voltage reaches the decomposition voltage of water, hydrogen and oxygen are respectively separated out on the cathode and the anode. The bubbles have small size and high dispersity, and are adhered to suspended solids in water to float upwards as carriers, so that pollutants can be easily removed. The electrolytic air flotation can remove hydrophobic pollutants in the wastewater and can also remove hydrophilic pollutants in the wastewater.
As can be seen from the following table, the electroflocculation method has a very good effect in treating these waste waters
After the wastewater is subjected to electrolytic flocculation reaction, scum and sediment are pumped into a sludge filter press for concentration, and effluent is subjected to salting-out demulsification, the wastewater is subjected to pollutant separation again, a selective coagulant is added to aggregate pollutants to form fine particles, the fine particles are formed, and the fine particles are formed into alum flocs by using a high-molecular polymer under a certain pH value environment, so that the wastewater is purified again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. Grinding ultrasonic cleaning wastewater zero-emission recycling or standard treatment system, which is characterized by comprising an intermediate adjusting water tank (1), an electrolytic air flotation slag scraping device (2), a sludge tank (3), a sludge pressing filter tank (4), a reaction sedimentation tank (5), a sedimentation tank (6) and a retreatment device (7), wherein the water outlet of the intermediate adjusting water tank (1) is connected with the water inlet of the electrolytic air flotation slag scraping device (2), the sludge outlet of the intermediate adjusting water tank (1) is connected with the sludge inlet of the sludge tank (3), the sludge outlet of the sludge tank (3) is connected with the sludge inlet of the sludge pressing filter tank (4), the water outlet of the electrolytic air flotation slag scraping device (2) is connected with the water inlet of the reaction sedimentation tank (5), the sludge outlet of the electrolytic air flotation slag scraping device (2) is connected with the sludge inlet of the sludge tank (3), and the water outlet of the reaction sedimentation tank (5) is connected with the water inlet of the sedimentation tank (6), the sludge outlet of the sedimentation tank (6) is connected with the sludge inlet of the sludge tank (3), and the water outlet of the sedimentation tank (6) is connected with the water inlet of the reprocessing equipment (7).
2. The grinding ultrasonic cleaning wastewater zero-discharge recycling or standard treatment system according to claim 1, wherein the intermediate regulation water tank (1) is divided into three chambers by a partition plate A (11) and a partition plate B (12), an overflow port A (111) is formed at the lower center end of the partition plate A (11), an overflow port B (121) is formed at the upper center end of the partition plate B (12), and a pumping equipment point is arranged in one chamber of the intermediate regulation water tank (1).
3. The system for zero-emission recycling or standard treatment of grinding ultrasonic cleaning wastewater according to claim 1, wherein the reprocessing device (7) comprises a comprehensive filter (71), an ion exchanger (72), a biochemical aeration tank (73), an ozone catalytic oxidation tank (74), an MBR membrane tank (75) and an evaporation tank (76), and valve switches are respectively arranged on pipelines connecting each branch of the comprehensive filter (71), the ion exchanger (72), the biochemical aeration tank (73), the ozone catalytic oxidation tank (74), the MBR membrane tank (75) and the evaporation tank (76) with the sedimentation tank (6).
4. The grinding ultrasonic cleaning wastewater zero-emission recycling or standard-reaching treatment system according to claim 3, wherein the comprehensive filter (71) is one of a cloth bag filter, an activated carbon filter and a quartz sand filter.
5. The system for zero-emission recycling or standard-reaching treatment of grinding ultrasonic cleaning wastewater according to claim 1, wherein a sewage outlet of the sludge pressure filter (4) is connected to a sewage inlet of the intermediate conditioning water tank (1).
6. The treatment process of the grinding ultrasonic cleaning wastewater zero-emission recycling or standard treatment system according to claim 1, characterized by comprising the following steps:
step 1: grinding polishing or ultrasonic cleaning wastewater is converged into an intermediate adjusting water tank (1), sewage of the intermediate adjusting water tank (1) is conveyed to an electrolytic air-flotation slag scraping device (2) by a sewage lifting pump for electrolytic air-flotation slag scraping, and meanwhile, sludge of the intermediate adjusting water tank (1) is conveyed to a sludge tank (3) by a submersible sewage pump;
step 2: the sewage in the electrolytic air flotation residue scraping equipment (2) is conveyed to a reaction sedimentation tank (5), and the sludge in the electrolytic air flotation residue scraping equipment (2) is conveyed to a sludge tank (3);
and step 3: the sewage of the reaction sedimentation tank (5) is conveyed to a sedimentation tank (6), the sewage of the sedimentation tank (6) is conveyed to a retreatment device (7) for selective treatment, and simultaneously, the sludge of the sedimentation tank (6) is conveyed to a sludge tank (3).
7. The treatment process of the grinding ultrasonic cleaning wastewater zero-discharge recycling or standard treatment system according to claim 6, characterized in that the floating oil in the intermediate conditioning water tank (1) is removed by manual fishing.
8. The treatment process of the grinding ultrasonic cleaning wastewater zero-emission recycling or standard-reaching treatment system according to claim 6, characterized in that the sludge in the sludge tank (3) from step 1 to step 3 is treated and then is conveyed to the sludge pressure filtration tank (4), and the sludge pressure filtration tank (4) returns the pressure filtration water generated in the sludge treatment process to the intermediate regulation water tank (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010376793.2A CN111573972A (en) | 2020-05-07 | 2020-05-07 | Grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching treatment system and process |
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| CN202010376793.2A CN111573972A (en) | 2020-05-07 | 2020-05-07 | Grinding ultrasonic cleaning wastewater zero-discharge recycling or standard-reaching treatment system and process |
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| CN111573972A true CN111573972A (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477525A (en) * | 2022-01-12 | 2022-05-13 | 东莞市园林绿化工程有限公司 | River surge polluted water body environment treatment equipment and treatment method |
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2020
- 2020-05-07 CN CN202010376793.2A patent/CN111573972A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477525A (en) * | 2022-01-12 | 2022-05-13 | 东莞市园林绿化工程有限公司 | River surge polluted water body environment treatment equipment and treatment method |
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