CN213506308U - Waste water recovery equipment - Google Patents
Waste water recovery equipment Download PDFInfo
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- CN213506308U CN213506308U CN202021734823.4U CN202021734823U CN213506308U CN 213506308 U CN213506308 U CN 213506308U CN 202021734823 U CN202021734823 U CN 202021734823U CN 213506308 U CN213506308 U CN 213506308U
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Abstract
The utility model discloses a waste water recovery equipment, it includes a coagulating basin, a gelatinization groove, a solid-liquid separation equipment, a oxidation groove, a reduction tank and a filter equipment, gelatinization groove and coagulating basin intercommunication, solid-liquid separation equipment and gelatinization groove intercommunication, oxidation groove and solid-liquid separation equipment intercommunication, reduction tank and oxidation tank intercommunication, and filter equipment and reduction tank intercommunication. The utility model discloses a leading-in oxidation groove and reduction tank among the waste water recovery equipment, the oxidation groove can be separated the polymer gelatinizing agent that exists in the waste water and constitute the micromolecule, and the reduction tank can be with remaining oxidizing substance reduction, consequently, can reduce waste water recovery cost increase economic benefits simultaneously.
Description
Technical Field
The utility model relates to a waste water recovery equipment especially relates to a can improve waste water recovery equipment of waste water recovery benefit.
Background
In recent years, the demand for water resources is increasing in most regions of the world, and as for high-tech industrial water, the water consumption of the new bamboo science industrial park reaches 12 ten thousand and 5 kilotons per day, and the quantity is very large and is extremely striking. However, the supply of water resources is difficult to predict due to climate change, and the solution is to effectively treat and recycle industrial wastewater besides reducing the water consumption.
In addition, wastewater treatment is also a very important environmental issue, especially for highly hazardous industrial wastewater. The industrial wastewater can be divided into inorganic wastewater mainly containing inorganic pollutants and organic wastewater mainly containing organic pollutants; in order to avoid environmental pollution, various waste water can be discharged or recycled after being treated correspondingly to reach the specified water quality standard.
Solid-liquid separation is an essential link for wastewater treatment, and in order to improve the solid-liquid separation efficiency, a common method is to add a high-molecular gelling agent into wastewater to promote smaller solid substances to be condensed into larger and heavy solid substances; however, the high molecular gelling agent easily clogs a filter element (e.g., a filter membrane), resulting in a decrease in filtration efficiency, a slow filtration rate, and an inefficient removal of contaminants.
Therefore, it is an important issue to overcome the above-mentioned drawbacks by improving the filterability of wastewater through structural design.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a not enough waste water recovery equipment that provides to prior art, it can carry out redox to waste water and handle to destroy the polymer gelatinizing agent structure with higher speed, thereby reach high-efficient filtration, consequently compare in current recovery equipment more economic benefits.
In order to solve the above technical problem, one of the technical solutions of the present invention is to provide a wastewater recycling apparatus, which comprises a coagulation tank, a gel tank, a solid-liquid separation device, an oxidation tank, a reduction tank and a filtering device. The coagulation tank is used for treating wastewater through a coagulant; the gelling tank is communicated with the coagulating tank and is used for treating the wastewater treated by the coagulating tank through a gelling agent; the solid-liquid separation device is communicated with the gelling tank and is used for removing solid matters in the wastewater treated by the gelling tank; the oxidation tank is communicated with the solid-liquid separation device and is used for treating the wastewater treated by the solid-liquid separation device through an oxidizing substance so as to destructurize the gelling agent in the wastewater; the reduction tank is communicated with the oxidation tank and is used for treating the wastewater treated by the oxidation tank through a reducing substance so as to reduce the oxidizing substance remained in the wastewater; the filtering device is communicated with the reduction tank.
Further, the filtering device is used for filtering the wastewater treated by the reduction tank, so as to obtain recycled water.
Furthermore, the wastewater recovery equipment also comprises a reverse osmosis device which is communicated with the filtering device and is used for purifying the recovered water.
Furthermore, the wastewater recycling equipment further comprises a biological treatment device, and the filtering device is communicated with the reduction tank through the biological treatment device, wherein the biological treatment device is used for removing organic pollutants in the wastewater treated by the reduction tank through microorganisms, and the filtering device is used for filtering the wastewater treated by the biological treatment device, so as to obtain recycled water.
Furthermore, the wastewater recovery equipment also comprises a reverse osmosis device which is communicated with the filtering device and is used for purifying the recovered water.
Furthermore, the solid-liquid separation device is a precipitation tank or a flotation tank.
Further, the filtering device is a micro-filtering device or an ultra-filtering device.
Further, the oxidizing substance is a chlorine-containing oxidizing substance or a sulfur-containing oxidizing substance.
Further, the chlorine-containing oxidizing substance is sodium hypochlorite, chloric acid or perchloric acid.
Further, the sulfur-containing oxidizing substance is sodium persulfate or potassium persulfate.
Further, the reducing substance is sodium bisulfite, sodium sulfite, potassium sulfite, or potassium bisulfite.
The utility model discloses an one of them beneficial effect lies in, the utility model provides a waste water recovery equipment, it has led into oxidation groove and reduction tank, and wherein the oxidation groove can be separated the polymer gelatinizer that exists in the waste water and constitute the micromolecule, and reduction tank can reduce remaining oxidizing substance, consequently can improve the filterability of waste water to alleviate filter equipment's processing burden, avoid filter equipment too fast emergence to block, become invalid, thereby reach and reduce waste water recovery cost increase economic benefits simultaneously.
For a further understanding of the nature and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic view of a wastewater reclamation apparatus according to a first embodiment of the present invention.
Fig. 2 is another schematic view of the wastewater reclamation apparatus according to the first embodiment of the present invention.
FIG. 3 is a schematic view of a wastewater reclamation apparatus according to a second embodiment of the present invention.
Fig. 4 is another schematic view of a wastewater reclamation apparatus according to a second embodiment of the present invention.
Detailed Description
The following is a description of the embodiments of the present invention disclosed in the "wastewater reclamation plant" by specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The present invention may be practiced or carried out in other different embodiments, and various modifications and changes may be made in the details of this description based on the different points of view and applications without departing from the spirit of the present invention. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.
First embodiment
Referring to fig. 1, a first embodiment of the present invention provides a wastewater recycling apparatus Z1, which is suitable for recycling inorganic wastewater; as shown in fig. 1, the wastewater recycling equipment Z1 mainly comprises a coagulation tank 1, a coagulation tank 2, a solid-liquid separation device 3, an oxidation tank 4, a reduction tank 5 and a filtering device 6, wherein the coagulation tank 2 is communicated with the coagulation tank 1, the solid-liquid separation device 3 is communicated with the coagulation tank 2, the oxidation tank 4 is communicated with the solid-liquid separation device 3, the reduction tank 5 is communicated with the oxidation tank 4, and the filtering device 6 is communicated with the reduction tank 5.
Further, the wastewater to be treated is first fed to the coagulation tank 1 for coagulation treatment, in which a coagulant is added to the wastewater to electrically neutralize small solid particles (such as colloidal particles) that are originally electrically and mutually exclusive. The coagulant may be polyaluminum chloride, aluminum sulfate, ferric chloride, ferrous sulfate, or the like, but is not limited thereto. In practical application, the wastewater to be treated can be collected in a temporary storage tank (not shown), and when the liquid level in the tank reaches a high liquid level, the pump is started to convey the wastewater.
Then, the wastewater treated by the coagulation tank 1 is transferred to a coagulation tank 2 for coagulation treatment, in which a polymer gelling agent is added to the wastewater to aggregate dispersed small-particle solids together to form large-particle solids, thereby facilitating separation from the wastewater. The high-molecular gelling agent may be acrylamide or acrylate, but is not limited thereto. In practical use, the coagulation tank 2 can be connected to the coagulation tank 1 through a pipe P1.
After that, the wastewater treated by the gelling tank 2 is conveyed to a solid-liquid separation device 3 for solid-liquid separation, so as to separate large-particle solid from the wastewater, and achieve a certain degree of separation of solid pollutants and water. The solid-liquid separation device 3 may be a settling tank or a flotation tank, but is not limited thereto. In practical use, the solid-liquid separator 3 is connected to the gel tank 2 via a pipe P2.
Thereafter, the wastewater treated by the solid-liquid separator 3 is sent to the oxidation tank 4 to be subjected to oxidation treatment in which an oxidizing substance is added to the wastewater to decompose the high-molecular gelling agent therein into small molecules, thereby reducing the subsequent filtration load. The oxidizing substance may be a chlorine-containing oxidizing substance or a sulfur-containing oxidizing substance, but is not limited thereto; specific examples of the chlorine-containing oxidizing substance include sodium hypochlorite, chloric acid and perchloric acid, and specific examples of the sulfur-containing oxidizing substance include sodium persulfate and potassium persulfate. In practice, the oxidation tank 4 may be connected to the solid-liquid separator 3 through a pipe P3, and a stirrer may be provided in the oxidation tank 4.
Thereafter, the wastewater treated in the oxidation tank 4 is transferred to a reduction tank 5 for reduction treatment in which a reducing substance is added to the wastewater to reduce the remaining oxidizing substance. The reducing substance may use sodium bisulfite, sodium sulfite, potassium sulfite, or potassium bisulfite, but is not limited thereto. In practice, the reduction vessel 5 may be connected to the oxidation vessel 4 through a pipe P4, and a stirrer may be provided in the reduction vessel 5. It is worth mentioning that the utility model discloses a waste water recovery equipment Z1 is owing to leading-in oxidation groove 4 and reduction tank 5, can destroy the polymer gelatinizing agent structure with higher speed, improves the filterability of waste water.
Finally, the wastewater treated by the reduction tank 5 is sent to a filtering device 6 for filtering to obtain recovered water meeting the water quality standard of the specified application. The filtering device 6 may be a micro-filtering device or an ultra-filtering device, but is not limited thereto. In practical use, the filtering apparatus 6 may be connected to the reduction tank 5 through a pipe P5.
Referring to fig. 2, the wastewater recovery apparatus Z1 may further include a reverse osmosis device 7 for purifying the recovered water by removing ionic impurities in the recovered water by treating the recovered water obtained by filtration with a reverse osmosis membrane according to actual needs. In practice, the reverse osmosis device 7 can be connected to the filtration device 6 via a pipe P6.
Second embodiment
Referring to fig. 3, a second embodiment of the present invention provides a wastewater reclamation apparatus Z2, which is suitable for treating organic wastewater; as shown in fig. 3, the wastewater recycling equipment Z2 mainly comprises a coagulation tank 1, a coagulation tank 2, a solid-liquid separation device 3, an oxidation tank 4, a reduction tank 5, a filtration device 6 and a biological treatment device 8, wherein the coagulation tank 2 is communicated with the coagulation tank 1, the solid-liquid separation device 3 is communicated with the coagulation tank 2, the oxidation tank 4 is communicated with the solid-liquid separation device 3, the reduction tank 5 is communicated with the oxidation tank 4, and the filtration device 6 is communicated with the reduction tank 5 through the biological treatment device 8.
The main difference between this embodiment and the first embodiment is: the wastewater reclamation apparatus Z2 includes a biological treatment device 8 for removing organic contaminants from the wastewater treated by the reduction tank 5 by microorganisms. In particular, the biological treatment device 8 metabolizes and decomposes organic pollutants in the wastewater by using microorganisms to convert the organic pollutants into harmless biological sludge. In practical use, the biological treatment device 8 can be communicated with the reduction tank 5 through a pipe P51, and the filtering device 6 can be communicated with the biological treatment device 8 through a pipe P52, so as to filter the wastewater treated by the biological treatment device 8, thereby obtaining the recovered water meeting the water quality standard of the specified application.
Referring to fig. 4, the wastewater reclamation apparatus Z2 may further include a reverse osmosis device 7 for purifying the reclaimed water by removing impurities from the reclaimed water by treating the reclaimed water obtained by filtration with a reverse osmosis membrane according to actual needs. In practice, the reverse osmosis device 7 can be connected to the filtration device 6 via a pipe P7.
Filterability test
Comparative example 1
Mixing 0.2% negative PAM (polyacrylamide, average molecular weight 1200 ten thousand) water solution A in reverse osmosis water to prepare a water sample A with 100 ppm; then, 500 ml of the water sample A was filtered at a pressure of-0.48 bar (bar) using a filter paper having a pore size of 1 μm for a time of 42 seconds.
Experimental example 1
Mixing 0.2% negative PAM (polyacrylamide, average molecular weight 1200 ten thousand) water solution A in reverse osmosis water to prepare 100ppm water solution B; then, adding sodium hypochlorite into the aqueous solution B with the content of 1000ppm for reaction for 15 minutes to obtain a water sample B; then, 500 ml of water sample B was filtered using a filter paper having a pore size of 1 μm under a pressure of-0.48 bar (bar) for 21 seconds.
Experimental example 2
Mixing 0.2% negative PAM (polyacrylamide, average molecular weight 1200 ten thousand) water solution A in reverse osmosis water to prepare 100ppm water solution B; then, adding sodium persulfate with the content of 1000ppm into the aqueous solution B for reaction for 15 minutes to obtain a water sample C; then, 500 ml of the water sample C was filtered at a pressure of-0.48 bar (bar) using a filter paper having a pore size of 1 μm for 9 seconds.
From the above, when water contains a high molecular polymer, the speed of filtering by the filter paper is slow, and the filtering load of the filter paper is increased; in contrast, chlorine-based or sulfur-based oxidizing substances are added before filtration to decompose the high molecular polymer in the water into small molecules, so that the time required for filtration can be reduced by more than half.
Advantageous effects of the embodiments
The utility model discloses an one of them beneficial effect lies in, the utility model provides a waste water recovery equipment, it has led into oxidation groove and reduction tank, and wherein the oxidation groove can be separated the polymer gelatinizer that exists in the waste water and constitute the micromolecule, and reduction tank can reduce remaining oxidizing substance, consequently can improve the filterability of waste water to alleviate filter equipment's processing burden, avoid filter equipment too fast emergence to block, become invalid, thereby reach and reduce waste water recovery cost increase economic benefits simultaneously.
Furthermore, the facility for recovering waste water of the present invention has improved operation simplicity and reliability in the presence of the oxidation tank and the reduction tank.
The above disclosure is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention, so that all the equivalent technical changes made by the contents of the specification and the drawings are included in the scope of the claims of the present invention.
Claims (11)
1. A wastewater reclamation apparatus, comprising:
a coagulation tank for treating a wastewater by a coagulant;
a gelling tank communicated with the coagulating tank for treating the wastewater treated by the coagulating tank by a gelling agent;
the solid-liquid separation device is communicated with the gelling tank and is used for removing solid matters in the wastewater treated by the gelling tank;
an oxidation tank in communication with the solid-liquid separation device for treating the wastewater treated by the solid-liquid separation device with an oxidizing substance to deconstruct the gelling agent therein;
a reduction tank communicating with the oxidation tank for treating the wastewater treated by the oxidation tank with a reducing substance to reduce the oxidizing substance remaining therein; and
and the filtering device is communicated with the reduction tank.
2. The wastewater reclamation apparatus as recited in claim 1, wherein the filtering device is configured to filter the wastewater treated by the reduction tank to obtain reclaimed water.
3. The wastewater reclamation apparatus as recited in claim 2, further comprising a reverse osmosis device in communication with the filtration device for purifying the reclaimed water.
4. The wastewater reclamation apparatus as recited in claim 1, further comprising a biological treatment device, wherein the filtration device is in communication with the reduction tank through the biological treatment device, wherein the biological treatment device is configured to remove organic contaminants from the wastewater treated by the reduction tank by microorganisms, and the filtration device is configured to filter the wastewater treated by the biological treatment device, thereby obtaining reclaimed water.
5. The wastewater reclamation apparatus as recited in claim 4, further comprising a reverse osmosis device in communication with the filtration device for purifying the reclaimed water.
6. The wastewater reclamation apparatus as recited in claim 1, wherein the solid-liquid separation device is a settling tank or a flotation tank.
7. The wastewater reclamation apparatus as recited in claim 1, wherein the filter device is a microfiltration device or an ultrafiltration device.
8. The wastewater reclamation apparatus as recited in claim 1, wherein said oxidizing species is a chlorine-containing oxidizing species or a sulfur-containing oxidizing species.
9. The wastewater reclamation apparatus of claim 8, wherein the chlorine-containing oxidizing substance is sodium hypochlorite, chloric acid, or perchloric acid.
10. The apparatus for recovering waste water according to claim 8, wherein the sulfur-containing oxidizing substance is sodium persulfate or potassium persulfate.
11. The wastewater reclamation apparatus as recited in claim 1, wherein the reducing substance is sodium bisulfite, sodium sulfite, potassium sulfite, or potassium bisulfite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021734823.4U CN213506308U (en) | 2020-08-19 | 2020-08-19 | Waste water recovery equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021734823.4U CN213506308U (en) | 2020-08-19 | 2020-08-19 | Waste water recovery equipment |
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| Publication Number | Publication Date |
|---|---|
| CN213506308U true CN213506308U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021734823.4U Active CN213506308U (en) | 2020-08-19 | 2020-08-19 | Waste water recovery equipment |
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| CN (1) | CN213506308U (en) |
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