CN214299717U - Processing apparatus of inferior sodium waste water resource utilization - Google Patents
Processing apparatus of inferior sodium waste water resource utilization Download PDFInfo
- Publication number
- CN214299717U CN214299717U CN202023009345.3U CN202023009345U CN214299717U CN 214299717 U CN214299717 U CN 214299717U CN 202023009345 U CN202023009345 U CN 202023009345U CN 214299717 U CN214299717 U CN 214299717U
- Authority
- CN
- China
- Prior art keywords
- water
- tank
- outlet
- salt
- ultrafiltration membrane
- 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.)
- Withdrawn - After Issue
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 36
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 11
- 239000011734 sodium Substances 0.000 title claims abstract description 11
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 150000003839 salts Chemical class 0.000 claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 18
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 16
- 238000002425 crystallisation Methods 0.000 claims abstract description 10
- 230000008025 crystallization Effects 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000001728 nano-filtration Methods 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 10
- 235000019345 sodium thiosulphate Nutrition 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000005708 Sodium hypochlorite Substances 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 2
- 239000002455 scale inhibitor Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a processing apparatus of inferior sodium waste water resource utilization, it includes buffer pool, tubular ultrafiltration membrane system, preliminary treatment product pond, is received and is strained the salt system, is divided salt product pond, reverse osmosis unit, clean water basin, evaporation crystallization device and towards sediment water system. The utility model discloses a processing apparatus, simple structure, water treatment and waste water retrieval and utilization expense are low, can effective treatment inferior sodium waste water, realize the recycle of water resource, have better economy and environmental benefit.
Description
Technical Field
The utility model belongs to chemical production sewage treatment field, concretely relates to inferior sodium waste water resource utilization's processing apparatus.
Background
At present vinyl acetate industry, the deterging process of acetylene can produce a large amount of sodium hypochlorite waste water (be referred to as sodium hypochlorite waste water for short), and main pollutant wherein is phosphorus, suspended solid, colloid and micromolecular COD, and vinyl acetate's continuous production leads to can discharging sodium hypochlorite waste water in succession in process of production, and the emission reaches about 100 tons every day. Because the pollutant components in the sodium hyposulfite wastewater are complex, the treatment difficulty is high, and the risk of the treatment process is high, the application cannot be realized. Most enterprises can recycle the water to generate high-concentration brine which cannot be discharged, the phosphorus content and the chlorine content in the water are increased, and the long-term storage causes damages such as corrosion to equipment pipelines. The resource utilization of the sodium hyposulfite wastewater is still in a primary stage, no proper treatment method is available, and the wastewater is difficult to treat conventionally and has high cost.
Aiming at the characteristic of high COD content of sodium hyposulfite wastewater, the most common COD removal method at present is a chemical oxidation method, but the method has high cost and large risk in the operation process. The method mainly aims at removing phosphorus from sodium hyposulfite wastewater by a chemical precipitation method, the generated phosphite is completely soluble and cannot be removed, and the phosphorus content in the treated effluent is still very high. Phosphorous acid salt can be oxidized into orthophosphate by adding a phosphorus removal medicament, but the medicament cost is higher, and resource waste and environmental pollution are easily caused in the operation.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned prior art exists, the utility model provides a processing apparatus of inferior sodium waste water utilization aims at realizing getting rid of pollutant through chemical reaction adds tub membrane technology, solves the problem that inferior sodium waste water treatment difficulty, can't discharge and utilize.
A treatment device for recycling sodium hyposulfite wastewater comprises a buffer tank, a tubular ultrafiltration membrane system, a pretreatment water producing tank, a nanofiltration salt separating system, a salt separating water producing tank, a reverse osmosis device, a clean water tank, an evaporative crystallization device and a slag flushing water system.
Further: the discharge hole of the buffer tank is connected to the feed inlet of the tubular ultrafiltration membrane system; a water production outlet of the tubular ultrafiltration membrane system is connected to a water inlet of the pretreatment water production tank, and a concentrated solution outlet of the tubular ultrafiltration membrane system is connected to the slag flushing water system; the water outlet of the pretreatment water producing tank is connected to the water inlet of the nano-filtration salt separating system; a water outlet of the nano-filtration salt separation system is connected to a water inlet of the salt separation water producing pool, and a concentrated solution outlet of the nano-filtration salt separation system is connected to the slag flushing water system; the water outlet of the salt separation water producing tank is connected to the water inlet of the reverse osmosis device; the water outlet of the reverse osmosis device is connected to the clean water tank, and the concentrated solution outlet of the reverse osmosis device is connected to the evaporative crystallization device.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
the utility model discloses a processing apparatus of inferior sodium waste water resource utilization, simple structure, convenient to use, water treatment and waste water retrieval and utilization expense are low, can effective treatment inferior sodium waste water, realize the recycle of water resource, reduce the water waste, alleviate the pollution to the water environment, have better economy and environmental benefit.
Drawings
FIG. 1 is the utility model discloses inferior sodium waste water resource utilization's processing apparatus schematic diagram, the reference numeral in the figure: 1-a buffer pool; 2-a tubular ultrafiltration membrane system; 3-pretreating a water producing tank; 4-a nanofiltration salt separation system; 5-salt production water tank; 6-a reverse osmosis device; 7-a clean water tank; 8-an evaporative crystallization device; 9-slag flushing water system; a-sodium hypochlorite waste water; b-a reducing agent; C-pH regulator; d-sulfuric acid; an E-scale inhibitor;
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the treatment device for recycling sodium hyposulfite wastewater comprises a buffer tank 1, a tubular ultrafiltration membrane system 2, a pretreatment water producing tank 3, a nanofiltration salt separation system 4, a salt separation water producing tank 5, a reverse osmosis device 6, a clean water tank 7, an evaporative crystallization device 8 and a slag flushing water system 9.
The structures are connected through pipelines. The discharge hole of the buffer tank 1 is connected to the feed inlet of the tubular ultrafiltration membrane system 2; a water production outlet of the tubular ultrafiltration membrane system 2 is connected to a water inlet of the pretreatment water production tank 3, and a concentrated solution outlet of the tubular ultrafiltration membrane system 2 is connected to a slag flushing water system 9; the water outlet of the pretreatment water producing tank 3 is connected to the water inlet of the nanofiltration salt separating system 4; a water production outlet of the nano-filtration salt separation system 4 is connected to a water inlet of the salt separation water production tank 5, and a concentrated solution outlet of the nano-filtration salt separation system 4 is connected to a slag flushing water system 9; the water outlet of the salt separating and water producing tank 5 is connected to the water inlet of the reverse osmosis device 6; the water outlet of the reverse osmosis device 6 is connected to a clean water tank 7, and the concentrated solution outlet of the reverse osmosis device 6 is connected to an evaporative crystallization device 8.
The method for recycling the sodium hypochlorite wastewater by using the device comprises the following steps:
step 1, pretreatment
Sodium hyposulfite wastewater A generated by the production system enters the buffer tank 1 through a pipeline for temporary storage, and a reducing agent B (such as sodium bisulfite) is added into the sodium hyposulfite wastewater before entering the buffer tank 1 so as to reduce the content of oxides in the sodium hyposulfite wastewater, so that the ORP value (the oxidation-reduction potential of a water solution, and the measurement index of the oxidation-reduction capability of the solution) of the sodium hyposulfite wastewater in the buffer tank 1 is not higher than 200mV, and the membrane is prevented from being damaged.
Wastewater in the buffer tank is sent into a tubular ultrafiltration membrane system 2 for membrane treatment, and a pH regulator C (acid or alkali) is added into the wastewater before entering the tubular ultrafiltration membrane system 2 to regulate the pH to 9-11, so that calcium ions and phosphate radicals in the wastewater react to form basic calcium phosphate (soft water slag), and the calcium ions and the phosphate radicals in the wastewater can be removed through the tubular ultrafiltration membrane system 2.
The produced water (the turbidity is less than or equal to 5%) treated by the tubular ultrafiltration membrane system 2 enters a pretreatment water producing tank 3, and the concentrated solution is sent to a slag flushing water system 9 for slag flushing treatment.
Step 2, Membrane System treatment
The wastewater in the pretreatment water production tank 3 is sent into a nanofiltration salt separation system 4, monovalent salt and divalent salt are separated through the interception effect of a membrane, and divalent salt and macromolecular COD are removed, so that the produced water mainly contains monovalent salt; the produced water treated by the nanofiltration salt separation system 4 is sent to a salt separation water producing tank 5, and the concentrated solution is sent to a slag flushing water system 9 for slag flushing treatment.
And adding sulfuric acid D into the wastewater in the salt separation and water production pool 5 to adjust the pH value to 6-7 according to the pH value of the produced water.
The wastewater in the salt-separating water-producing pond 5 is introduced into a reverse osmosis device 6, and monovalent salt and micromolecular COD are intercepted and removed by utilizing the membrane separation effect, so that the treated water quality reaches the standard. The produced water treated by the reverse osmosis device 6 (sampling and detecting to ensure that the chloride ion content is less than or equal to 50mg/L and the electrical conductivity is less than or equal to 50 mu s/cm) is sent to a clean water tank 7 for production units to use, and the high-concentration brine is sent to an evaporative crystallization device 8 for evaporative crystallization to obtain NaCl for recycling.
When the wastewater in the pretreatment water producing tank 3 is sent into the nanofiltration salt separating system 4, a scale inhibitor is added into the nanofiltration salt separating system 4 according to the system requirements, so as to reduce the scaling phenomenon of the equipment and relieve the damage of the equipment.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent alterations and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a processing apparatus of inferior sodium waste water resource utilization which characterized in that: comprises a buffer tank (1), a tubular ultrafiltration membrane system (2), a pretreatment water producing tank (3), a nanofiltration salt separating system (4), a salt separating water producing tank (5), a reverse osmosis device (6), a clean water tank (7), an evaporative crystallization device (8) and a slag flushing water system (9);
the discharge hole of the buffer tank (1) is connected to the feed hole of the tubular ultrafiltration membrane system (2); a water production outlet of the tubular ultrafiltration membrane system (2) is connected to a water inlet of the pretreatment water production tank (3), and a concentrated solution outlet of the tubular ultrafiltration membrane system (2) is connected to the slag flushing water system (9); the water outlet of the pretreatment water producing tank (3) is connected to the water inlet of the nano-filtration salt separating system (4); a water production outlet of the nano-filtration salt separation system (4) is connected to a water inlet of the salt separation water production tank (5), and a concentrated solution outlet of the nano-filtration salt separation system (4) is connected to the slag flushing water system (9); a water outlet of the salt separation water producing tank (5) is connected to a water inlet of the reverse osmosis device (6); the water production outlet of the reverse osmosis device (6) is connected to the clean water tank (7), and the concentrated solution outlet of the reverse osmosis device (6) is connected to the evaporative crystallization device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009345.3U CN214299717U (en) | 2020-12-14 | 2020-12-14 | Processing apparatus of inferior sodium waste water resource utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009345.3U CN214299717U (en) | 2020-12-14 | 2020-12-14 | Processing apparatus of inferior sodium waste water resource utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214299717U true CN214299717U (en) | 2021-09-28 |
Family
ID=77854140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023009345.3U Withdrawn - After Issue CN214299717U (en) | 2020-12-14 | 2020-12-14 | Processing apparatus of inferior sodium waste water resource utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214299717U (en) |
-
2020
- 2020-12-14 CN CN202023009345.3U patent/CN214299717U/en not_active Withdrawn - After Issue
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205170626U (en) | Organic high salt concentration effluent disposal system | |
| CN102616962B (en) | Deep stage treatment method for industrial wastewater | |
| CN105439358A (en) | Method and device for realizing zero discharge of desulfurization wastewater | |
| CN104276711A (en) | Reverse osmosis membrane treatment process for recycling industrial sewage and realizing zero release | |
| CN102936065A (en) | Method for treating wastewater | |
| CN103241860A (en) | Combined treatment device and process for acid-washing wastewater of stainless steel | |
| CN104909494A (en) | Process for impurity removal and purification of industrial high-concentration brine and special equipment of process | |
| KR101360017B1 (en) | Method of water treatment and system using the same | |
| CN203360192U (en) | Treatment device for difficultly degradable industrial wastewater | |
| CN101643260A (en) | Method for treating industrial waste water | |
| CN202272787U (en) | Novel efficient reverse osmosis water treatment device | |
| CN104556475A (en) | Pretreatment technology of high-salinity wastewater | |
| JP2014210232A (en) | Method for processing alkaline waste water including calcium-eluting particles | |
| CN214299717U (en) | Processing apparatus of inferior sodium waste water resource utilization | |
| CN217868499U (en) | Combined system suitable for realizing zero emission of mine drainage water | |
| CN112479463B (en) | Treatment device and method for sodium hypochlorite wastewater resource utilization | |
| CN107601729B (en) | Strong salt wastewater zero-discharge treatment process and system for steel industry | |
| CN202924851U (en) | Fenton oxidization reaction-based fluoride waste water treatment device | |
| CN206635157U (en) | Sewage from Ships denitrogenation processing system | |
| CN105621757A (en) | High-salt hardly-degradable industrial wastewater system and method | |
| CN215102340U (en) | Low-cost resourceful treatment system of coal industry high salt waste water | |
| CN203668181U (en) | Sewage treatment equipment | |
| CN211813892U (en) | Reverse osmosis concentrated water recycling system | |
| CN204779152U (en) | Liquid water disposal recovery system of stainless steel pickling line | |
| CN103979709A (en) | Combined softening processing system and method for circulating water and discharging water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210928 Effective date of abandoning: 20240326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210928 Effective date of abandoning: 20240326 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |