CN218403897U - Special processing apparatus of water quality monitoring waste liquid - Google Patents
Special processing apparatus of water quality monitoring waste liquid Download PDFInfo
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- CN218403897U CN218403897U CN202222559816.0U CN202222559816U CN218403897U CN 218403897 U CN218403897 U CN 218403897U CN 202222559816 U CN202222559816 U CN 202222559816U CN 218403897 U CN218403897 U CN 218403897U
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Abstract
The utility model discloses a special processing apparatus of water quality monitoring waste liquid relates to liquid water treatment technical field, including first waste liquid processing system and second waste liquid processing system, first waste liquid processing system is including COD waste liquid collecting pit, sedimentation tank, neutralization pond that communicate in proper order and the sulphuric acid holding vessel, sodium hydroxide holding vessel, reductant holding vessel, the sodium chloride holding vessel that are used for the medicament to store, the liquid outlet and the sedimentation tank intercommunication of reductant holding vessel and sodium chloride holding vessel, the liquid outlet of sulphuric acid holding vessel, sodium hydroxide holding vessel all communicates with sedimentation tank, neutralization pond, it has PP filter column and dechromization post to establish ties in proper order on the transfer line between sedimentation tank and the neutralization pond. This special processing apparatus of water quality monitoring waste liquid can carry out corresponding processing according to its harmful substance composition, avoids waste water to environmental pollution, makes the monitoring waste liquid treatment more convenient.
Description
Technical Field
The utility model relates to a waste liquid treatment technical field specifically is a special processing apparatus of water quality monitoring waste liquid.
Background
The water quality on-line monitoring equipment and the laboratory manual water quality detection are based on the same national standard, the operation process is the same as the type of the used chemical reagent, the dangerous components and the concentration of the generated waste liquid are basically the same, and the detection reagent is used as follows: potassium dichromate, mercury sulfate, silver sulfate, concentrated sulfuric acid, and the like. Generally, the method comprises 5 items of pH value detection, SS item detection, ammonia nitrogen detection, COD detection and total phosphorus detection.
The heavy metal components such as mercury ions, hexavalent chromium ions and the like contained in the waste liquid of the water quality online monitoring equipment and the waste liquid of the laboratory water quality detection have high concentration and strong toxicity, belong to hazardous waste, and need to be properly treated according to relevant national laws and regulations. The hazards of mercury, hexavalent chromium are well known. The long-term pollution of mercury, hexavalent chromium and other heavy metals can induce a plurality of serious diseases including cancer, and the serious diseases are pollutants which are mainly monitored by the national environmental protection department. Dangerous waste containing mercury and hexavalent chromium is extremely easy to cause serious environmental pollution due to improper disposal, and seriously threatens the health of people.
Therefore, it is necessary to provide a special treatment device for water quality monitoring waste liquid to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the utility model is to provide a special processing apparatus of water quality monitoring waste liquid to solve the problem that proposes among the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a special treatment device for water quality monitoring waste liquid comprises a first waste liquid treatment system and a second waste liquid treatment system, wherein the first waste liquid treatment system comprises a COD waste liquid collecting tank, a sedimentation tank, a neutralization tank, a sulfuric acid storage tank, a sodium hydroxide storage tank, a reducing agent storage tank and a sodium chloride storage tank which are sequentially communicated, the sulfuric acid storage tank and the sodium chloride storage tank are used for storing medicaments, the liquid outlets of the reducing agent storage tank and the sodium chloride storage tank are communicated with the sedimentation tank, the liquid outlets of the sulfuric acid storage tank and the sodium hydroxide storage tank are communicated with the sedimentation tank and the neutralization tank, and a PP filter column and a dechromization column are sequentially connected in series on a liquid conveying pipe between the sedimentation tank and the neutralization tank; the second waste liquid treatment system comprises a mixed waste liquid collecting tank, MBR sewage treatment equipment and a neutralizing tank which are sequentially communicated; the waste liquid import of neutralization pond is equipped with except that the mercury column, the delivery port of neutralization pond is connected with the drain pipe, and it has ammonia removal column, heavy metal adsorption column and pipeline formula ultraviolet sterilizer to establish ties on the drain pipe.
Preferably, the sulfuric acid storage tank, the sodium hydroxide storage tank, the COD waste liquid collecting tank, the mixed waste liquid collecting tank, the reducing agent storage tank, the sodium chloride storage tank, the MBR sewage treatment equipment, the sedimentation tank and the neutralization pond are all fixedly provided with level meters.
Preferably, a pH sensor is arranged in each of the sedimentation tank and the neutralization tank.
Preferably, the middle part of sedimentation tank rotates and is connected with the pivot, and the outside of pivot is fixed with stirring vane, the pivot is rotated by motor drive.
Preferably, an MBR membrane module is fixed inside the MBR sewage treatment equipment.
Preferably, the bottom ends of the MBR sewage treatment equipment and the sedimentation tank are provided with slag outlets.
Preferably, the medicament stored in the reducing agent storage tank is one of sodium metabisulfite, sodium bisulfite, sodium sulfite, sodium dithionite and sodium thiosulfate.
(III) advantageous effects
Compared with the prior art, the utility model provides a special processing apparatus of water quality monitoring waste liquid possesses following beneficial effect:
1. this special processing apparatus of water quality monitoring waste liquid, according to the harmful composition of waste water with its classified storage to COD waste liquid collecting tank and mix in the liquid collecting tank, then carry out corresponding processing according to its harmful composition, avoid waste water to environmental pollution, make the monitoring waste liquid handle more convenient.
2. This special processing apparatus of water quality monitoring waste liquid can retrieve silver ion to follow-up reuse reduces its toxicity with hexavalent chromium ion reduction for trivalent chromium ion, adds the sodium hydroxide simultaneously and makes it generate the chromium hydroxide sediment, reduces follow-up dechromization post and filters the burden, improves the dechromization effect.
Drawings
Fig. 1 is a schematic view of the waste liquid treatment system of the present invention.
In the figure: 1. a sulfuric acid storage tank; 2. a sodium hydroxide storage tank; 3. a COD waste liquid collecting tank; 4. a mixed waste liquid collecting tank; 5. a reductant storage tank; 6. a sodium chloride storage tank; 7. MBR sewage treatment equipment; 8. a sedimentation tank; 9. a neutralization pond; 10. a PP filter column; 11. removing chromium columns; 12. removing mercury columns; 13. an ammonia removal column; 14. a heavy metal adsorption column; 15. pipeline formula ultraviolet sterilizer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a water quality monitoring waste liquid special treatment device comprises a first waste liquid treatment system and a second waste liquid treatment system, wherein the first waste liquid treatment system comprises a COD waste liquid collection tank 3, a sedimentation tank 8, a neutralization tank 9, a sulfuric acid storage tank 1 for storing a medicament, a sodium hydroxide storage tank 2, a reducing agent storage tank 5 and a sodium chloride storage tank 6 which are sequentially communicated, liquid outlets of the reducing agent storage tank 5 and the sodium chloride storage tank 6 are communicated with the sedimentation tank 8, liquid outlets of the sulfuric acid storage tank 1 and the sodium hydroxide storage tank 2 are both communicated with the sedimentation tank 8 and the neutralization tank 9, and a liquid conveying pipe between the sedimentation tank 8 and the neutralization tank 9 is sequentially connected in series with a PP filter column 10 and a dechromization column 11; the second waste liquid treatment system comprises a mixed waste liquid collecting tank 4, MBR sewage treatment equipment 7 and a neutralizing tank 9 which are communicated in sequence; the waste liquid inlet of the neutralization tank 9 is provided with a mercury removing column 12, the water outlet of the neutralization tank 9 is connected with a water discharge pipe, the water discharge pipe is connected with an ammonia removing column 13, a heavy metal adsorption column 14 and a pipeline type ultraviolet sterilizer 15 in series, and each liquid conveying pipeline of the device is provided with a liquid pump for conveying liquid.
Further, the chemical agent stored in the reducing agent storage tank 5 is one of sodium metabisulfite, sodium bisulfite, sodium sulfite, sodium dithionite and sodium thiosulfate, and sodium thiosulfate is used as the reducing agent in the embodiment.
Further, equal fixed mounting has the level gauge in sulphuric acid holding vessel 1, sodium hydroxide holding vessel 2, COD waste liquid collecting pit 3, mixed waste liquid collecting pit 4, reductant holding vessel 5, sodium chloride holding vessel 6, MBR sewage treatment device 7, sedimentation tank 8 and the neutralization pond 9, all is equipped with the PH sensor in sedimentation tank 8 and the neutralization pond 9.
Further, the middle part of sedimentation tank 8 is rotated and is connected with the pivot, the outside of pivot is fixed with stirring vane, the pivot is rotated by motor drive, MBR sewage treatment device 7's internal fixation has the MBR membrane module, MBR sewage treatment device 7 and sedimentation tank 8's bottom all is equipped with row cinder notch, MBR sewage treatment device 7 is current being used for the ammonia nitrogen, the waste water treatment device that phosphorus was got rid of, wherein getting rid of phosphorus, form insoluble phosphate precipitate through throwing with chemical, chemical is lime the most commonly used, aluminum sulfate, sodium aluminate, ferric sulfate and ferrous sulfate.
The chromium removal column 11, the ammonia removal column 13, the heavy metal adsorption column 14 and the mercury removal column 12 are all filter columns filled with corresponding adsorption fillers, and the adsorption fillers are all existing known adsorption fillers.
The PH sensor, motor, level meter, liquid pump present in this document are all electrically connected to a master controller, and the master controller may be a conventional known device for the control of computers and the like.
The working principle is as follows: the silver-chromium-mercury-containing waste liquid generated by COD detection is stored in a COD waste liquid collecting tank 3, and the phosphorus-nitrogen-ammonia-mercury-containing waste liquid generated by ammonia nitrogen detection and total phosphorus detection is stored in a mixed waste liquid collecting tank 4:
when the waste liquid generated by COD detection is treated, the waste liquid is pumped into a sedimentation tank 8 through a liquid pump, sulfuric acid in a sulfuric acid storage tank 1 is pumped into the sedimentation tank 8, the PH value is adjusted to 3, a sodium thiosulfate solution in a reducing agent storage tank 5 is pumped into the sedimentation tank 8, hexavalent chromium ions in the waste liquid are reduced into trivalent chromium ions, a sodium chloride solution is added to generate silver chloride precipitation, a sodium hydroxide solution is added to adjust the PH value to be alkaline, the reaction is performed under the alkaline condition to generate chromium hydroxide precipitation, a stirring blade is driven by a starting motor to stir the waste liquid in the sedimentation tank 8, the mixing efficiency can be improved, after the reaction is completed, the waste liquid in the sedimentation tank 8 is pumped into a neutralization tank 9, the precipitation in the waste liquid can be filtered under the action of a PP filter element in a PP filter column 10 in the pumping and conveying process, the chromium ions in the waste liquid can be further adsorbed by a chromium removal column 11, and mercury removal column 12 can be used for adsorbing mercury ions in the waste liquid.
When mixed waste liquid containing phosphorus, nitrogen, ammonia and mercury is treated, the mixed waste liquid is pumped into MBR sewage treatment equipment 7 through a liquid pump, nitrogen and ammonia are removed through activated sludge in the mixed liquid, phosphorus is added with chemical agents to form insoluble phosphate precipitates, then water is filtered out by an MBR membrane assembly under the action of external pressure and flows into a neutralization tank 9, and mercury ions in the waste liquid can be adsorbed by a mercury removal column 12.
The waste liquid sent to the neutralization tank 9 is adjusted to be neutral in pH by introducing a sulfuric acid solution or a sodium hydroxide solution, and then is discharged through a drain pipe, in the process of removing ammonia, residual ammonia and heavy metal ions in the waste liquid are further adsorbed by an ammonia removal column 13 and a heavy metal adsorption column 14, and then the waste liquid is sterilized by a pipeline type ultraviolet sterilizer 15.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a special processing apparatus of water quality monitoring waste liquid, includes first waste liquid processing system and second waste liquid processing system, its characterized in that: the first waste liquid treatment system comprises a COD (chemical oxygen demand) waste liquid collecting tank (3), a sedimentation tank (8), a neutralization tank (9), a sulfuric acid storage tank (1), a sodium hydroxide storage tank (2), a reducing agent storage tank (5) and a sodium chloride storage tank (6) which are sequentially communicated, wherein the sulfuric acid storage tank (1), the sodium hydroxide storage tank (2), the reducing agent storage tank (5) and the sodium chloride storage tank (6) are used for storing medicaments, liquid outlets of the reducing agent storage tank (5) and the sodium chloride storage tank (6) are communicated with the sedimentation tank (8), liquid outlets of the sulfuric acid storage tank (1) and the sodium hydroxide storage tank (2) are communicated with the sedimentation tank (8) and the neutralization tank (9), and a PP (10) and a dechromization column (11) are sequentially connected in series on a liquid conveying pipe between the sedimentation tank (8) and the neutralization tank (9);
the second waste liquid treatment system comprises a mixed waste liquid collecting tank (4), MBR sewage treatment equipment (7) and a neutralizing tank (9) which are communicated in sequence;
the waste liquid inlet of the neutralization tank (9) is provided with a mercury removing column (12), the water outlet of the neutralization tank (9) is connected with a water discharge pipe, and an ammonia removing column (13), a heavy metal adsorption column (14) and a pipeline type ultraviolet sterilizer (15) are connected on the water discharge pipe in series.
2. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: equal fixed mounting has the level gauge in sulphuric acid holding vessel (1), sodium hydroxide holding vessel (2), COD waste liquid collecting pit (3), mixed waste liquid collecting pit (4), reductant holding vessel (5), sodium chloride holding vessel (6), MBR sewage treatment device (7), sedimentation tank (8) and neutralization pond (9).
3. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: PH sensors are arranged in the sedimentation tank (8) and the neutralization tank (9).
4. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: the middle part of sedimentation tank (8) is rotated and is connected with the pivot, and the outside of pivot is fixed with stirring vane, the pivot is rotated by motor drive.
5. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: an MBR membrane module is fixed inside the MBR sewage treatment equipment (7).
6. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: and slag discharge ports are formed in the bottom ends of the MBR sewage treatment equipment (7) and the sedimentation tank (8).
7. The special treatment device for water quality monitoring waste liquid according to claim 1, characterized in that: the medicament stored in the reducing agent storage tank (5) is one of sodium metabisulfite, sodium bisulfite, sodium sulfite, sodium dithionite and sodium thiosulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222559816.0U CN218403897U (en) | 2022-09-27 | 2022-09-27 | Special processing apparatus of water quality monitoring waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222559816.0U CN218403897U (en) | 2022-09-27 | 2022-09-27 | Special processing apparatus of water quality monitoring waste liquid |
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| Publication Number | Publication Date |
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| CN218403897U true CN218403897U (en) | 2023-01-31 |
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| CN202222559816.0U Active CN218403897U (en) | 2022-09-27 | 2022-09-27 | Special processing apparatus of water quality monitoring waste liquid |
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- 2022-09-27 CN CN202222559816.0U patent/CN218403897U/en active Active
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