PL102754B1 - METHOD OF REMOVING AMMONIUM NITROGEN FROM WATER AND SEWAGE - Google Patents
METHOD OF REMOVING AMMONIUM NITROGEN FROM WATER AND SEWAGE Download PDFInfo
- Publication number
- PL102754B1 PL102754B1 PL19821877A PL19821877A PL102754B1 PL 102754 B1 PL102754 B1 PL 102754B1 PL 19821877 A PL19821877 A PL 19821877A PL 19821877 A PL19821877 A PL 19821877A PL 102754 B1 PL102754 B1 PL 102754B1
- Authority
- PL
- Poland
- Prior art keywords
- water
- chlorine
- sewage
- nitrogen
- ammonium nitrogen
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 30
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 10
- 239000010865 sewage Substances 0.000 title claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 23
- 239000000460 chlorine Substances 0.000 claims description 23
- 229910052801 chlorine Inorganic materials 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 150000001768 cations Chemical class 0.000 claims description 9
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical class ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 6
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910001603 clinoptilolite Inorganic materials 0.000 description 2
- JSYGRUBHOCKMGQ-UHFFFAOYSA-N dichloramine Chemical compound ClNCl JSYGRUBHOCKMGQ-UHFFFAOYSA-N 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- -1 sodium cations Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Removal Of Specific Substances (AREA)
Description
Przedmiotem wynalazku jest sposób usuwania azotu amonowego zwód i scieków, polegajacy na dawkowaniu chloru oraz wykorzystujacy przepuszczanie oczyszczanych wód przez zloze kationitu.The subject of the invention is a method of ammoniacal nitrogen removal from water and sewage, consisting in chlorine dosing and using the passing of treated waters through the cationic deposit.
Istota wynalazku polega na tym ze przez zloze kationitu przepuszcza sie wspólpradowo wode chlorowa i wode lub scieki, przy czym stosunek wagowy chloru do usuwanego azotu amonowego wynosi od 1 do 8, korzystnie 5, a odczyn wody lub scieku w miejscu doprowadzania wody chlorowej wynosi ponizej 5,5. Dzieki temu azot amonowy reaguje z chlorem tworzac chloraminy, a azot amonowy bedacy w równowadze z chloraminami jest usuwany z roztworu przez kationit. Chloraminy reaguja ze soba, w wyniku czego wytwarza sie azot gazowy i niewielkie ilosci tlenków azotu.The essence of the invention consists in the fact that chlorine water is passed through the cation exchanger bed and water or sewage, where the weight ratio of chlorine to ammoniacal nitrogen removed is from 1 to 8, preferably 5, and the pH of the water or the effluent at the point of the chlorine water supply is below 5.5. Thanks The ammonium nitrogen thus reacts with the chlorine to form chloramines and the ammonium nitrogen is in equilibrium with chloramines is removed from solution by cation exchanger. Chloramines react with each other, and as a result it produces gaseous nitrogen and small amounts of nitrogen oxides.
Zasadnicza korzyscia techniczna wynikajaca ze stosowania sposobu wedlug wynalazku jest okolo trzykrotne wydluzenie czasu pracy zloza kationitowego w porównaniu ze znanym sposobem usuwania azotu amonowego przy uzyciu kationitu. Sposób ten nie wymaga zobojetniania wody chlorowej oraz obniza stopien2 102 754 zasolenia oczyszczanych wód lub scieków. Ponadto w sposobie tym nie jest wymagana ciagla kontrola zawartosci azotu amonowego oraz kazdorazowy dobór ilosci dawkowanego chloru. Ilosc chloru jest dobierana jeden raz na - podstawie sredniej zawartosci azotu amonowego, co znacznie upraszcza technologie oczyszczania wód i scieków.The major technical advantage of using the method according to the invention is approximately three times longer working time of the cation exchange deposit compared to the known method of nitrogen removal ammonia using a cation exchanger. This method does not require the neutralization of the chlorine water and reduces the degree of chlorine water, 102 754 salinity of treated water or sewage. Moreover, this method does not require continuous content control ammoniacal nitrogen and each time selection of the amount of dosed chlorine. The amount of chlorine is adjusted once every - on the basis of the average content of ammoniacal nitrogen, which significantly simplifies the technologies of water and sewage treatment.
Przedmiot wynalazku jest objasniony w przykladach usuwania azotu amonowego z wody wodociagowej.The subject matter of the invention is explained in the examples of the removal of ammoniacal nitrogen from tap water.
Przyklad I. Wóde wodociagowa o zawartosci azotu amonowego 10mg/dm3 i wode chlorowa o stezeniu zapewniajacym dawkowanie 50 mg chloru na dm3 wody wodociagowej, przepuszcza sie wspólpradowo przez warstwe klinoptylolitu umieszczonego w kolumnie jonitowej, z wydajnoscia jednostkowa 5m3/m2h. Azot amonowy reaguje z chlorem tworzac monochloramine i dwuchloramine, zas azot amonowy bedacy w równowadze z chloraminami reaguje z grupami funkcyjnymi klinoptylolitu wypierajac kationy sodowe.Example I. Tap water with the content of ammonium nitrogen 10 mg / dm3 and chlorine water with a concentration ensuring a dosage of 50 mg of chlorine per dm3 of tap water, co-current through the clinoptilolite layer placed in an ion exchange column, with unit capacity 5m3 / m2h. Ammonium nitrogen reacts with chlorine to form monochloramine and dichloramine, and ammonium nitrogen being in equilibrium with chloramines, it reacts with the functional groups of clinoptilolite displacing sodium cations.
Dzieki temu azot amonowy pozostaje w zlozu kationitu, a kationy sodowe tworza z woda wodorotlenek sodowy, który zobojetnia kwasy zawarte w wodzie. Monochloramina reaguje z dwuchloramina, dzieki czemu powstaje azot gazowy i niewielkie ilosci podtlenku azotu, które rozpuszczaja sie w wodzie. Odczyn wody w miejscu wprowadzania wody chlorowej wynosi 5—5,5, a odczyn wody na wyjsciu z kolumny wynosi 7—7,5.As a result, ammonium nitrogen remains in the cation exchanger, and sodium cations form hydroxide with water sodium, which neutralizes the acids in the water. Monochloramine reacts with dichloramine, making it gaseous nitrogen and small amounts of nitrous oxide are formed, which are dissolved in the water. Water reaction at the point of the introduction of the chlorine water is 5-5.5, and the pH of the water at the outlet from the column is 7-7.5.
Odbierana na wyjsciu kolumny woda zawiera sladowe ilosci azotu amonowego i 2—5 mg chloru wdm3. Czas pracy zloza kationitu wynosi 15 godzin. Po uplywie tego czasu zloze przemywa sie woda, a nastepnie dziesiecioprocentowym roztworem chlorku sodowego, który powoduje regeneracje zuzytego kationitu. Po nastepnym przemyciu woda zloze nadaje sie do dalszej pracy.The water collected at the outlet of the column contains trace amounts of ammoniacal nitrogen and 2-5 mg of chlorine in dm3. Time work of the cation exchanger is 15 hours. After this time, the bed is washed with water, and then 10% sodium chloride solution, which regenerates the used cation exchanger. After the next washing of the water is suitable for further work.
Przyklad II. Sposób wedlug wynalazku prowadzi sie jak w przykladzie pierwszym, stosujac wode wodociagowa o zawartosci azoty amonowego 5,0 mg/dm3 i dawkujac 5,0 mg chloru na dm3 wody wodociagowej, przy odczynie wody w miejscu doprowadzania wody chlorowej 5—5,5. Czas pracy zloza wynosi 28 godzin.Example II. The method according to the invention is carried out as in the first example, using water water supply system with the content of ammonium nitrogen 5.0 mg / dm3 and dosing 5.0 mg of chlorine per dm3 of tap water, when the water reaction in the place of chlorine water supply is 5-5.5. The working time of the deposit is 28 hours.
Przyklad III. Sposób wedlug wynalazku prowadzi sie jak w przykladzie pierwszym, stosujac wode wodociagowa o zawartosci 6,25 mg/dm3 i dawkujac 50 mg chloru na dm3 wody wodociagowej, przy odczynie wody w miejscu doprowadzania wody chlorowej 5—5,5. Czas pracy zloza wynosi 22 godziny.Example III. The method according to the invention is carried out as in the first example, using water water supply system with a content of 6.25 mg / dm3 and dosing 50 mg of chlorine per dm3 of tap water, at the pH of water at the point of chlorine water supply 5-5.5. The working time of the bed is 22 hours.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL19821877A PL102754B1 (en) | 1977-05-18 | 1977-05-18 | METHOD OF REMOVING AMMONIUM NITROGEN FROM WATER AND SEWAGE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL19821877A PL102754B1 (en) | 1977-05-18 | 1977-05-18 | METHOD OF REMOVING AMMONIUM NITROGEN FROM WATER AND SEWAGE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL198218A1 PL198218A1 (en) | 1978-04-10 |
| PL102754B1 true PL102754B1 (en) | 1979-04-30 |
Family
ID=19982578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL19821877A PL102754B1 (en) | 1977-05-18 | 1977-05-18 | METHOD OF REMOVING AMMONIUM NITROGEN FROM WATER AND SEWAGE |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL102754B1 (en) |
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1977
- 1977-05-18 PL PL19821877A patent/PL102754B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL198218A1 (en) | 1978-04-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Decisions on the lapse of the protection rights |
Effective date: 20080703 |