SU451641A1 - The method of wastewater treatment from urea - Google Patents
The method of wastewater treatment from ureaInfo
- Publication number
- SU451641A1 SU451641A1 SU1300090A SU1300090A SU451641A1 SU 451641 A1 SU451641 A1 SU 451641A1 SU 1300090 A SU1300090 A SU 1300090A SU 1300090 A SU1300090 A SU 1300090A SU 451641 A1 SU451641 A1 SU 451641A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- urea
- wastewater treatment
- wastewater
- phosphoric acid
- ammonia
- Prior art date
Links
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Description
1one
Известен способ очистки -сточных вод производства мочевины путем гидролиза Мочевииы в присутствии фосфорной кислоты при температуре до 160°С и давлении до 10 кг/ом-.A known method of purification of wastewater from urea production by hydrolysis of Urea in the presence of phosphoric acid at temperatures up to 160 ° C and pressures up to 10 kg / ohm.
С целью упрощени способа предложено очистку сточных вод от мочевины вести путем сорбции ее «а сильнокислотных катиоиитах, например КУ-2, с последующей пх регенерацией сильными Неорганическими .кислотами.In order to simplify the process, wastewater treatment from urea has been proposed to be carried out by sorption of it in strongly acidic cathioites, for example, KU-2, followed by their regeneration by strong Inorganic acids.
При наличии в сточных водах а-ммнака одН01временно с мочевиной происходит и сорбци аммиака.In the presence of a-mmnak in the wastewater, the sorption of ammonia occurs simultaneously with urea.
При регенерации катионита, например, фосфорной кислотой, иолучеННые концентрированные растворы, содержащие Мочевину и аммонийные соли, пригодны к использованию в виде удобрительных смесей.When regenerating the cation exchanger, for example, with phosphoric acid, and the concentrated concentrated solutions containing Urea and ammonium salts are suitable for use as fertilizer mixtures.
Прпмер. Через колонку .с 50 г катионита КУ-2 пропускают до ироскока мочевины 130 мл раствора, содержащего 20 г/л аммиака, 2,73 мочевины и 5 г/л углекислого а-м мони . Насыщение катионпта аммиаком и мочевиной сопровождаетс выделением углекислого газа.Prpmer. Through a column. 50 g of cation exchanger KU-2 is passed to iroskoka urea 130 ml of a solution containing 20 g / l of ammonia, 2.73 urea and 5 g / l of carbon dioxide am moni. The saturation of the cation with ammonia and urea is accompanied by the release of carbon dioxide.
Регенерацию катионита осуществл ют 40,мл 36,7%-ной фосфорной кислоты и 10 мл дистиллироваоной воды.The regeneration of the cation exchanger is carried out in 40 ml of 36.7% phosphoric acid and 10 ml of distilled water.
П, изобретени P, invention
Способ очистки сточных .вод от мочевииы, отличающийс тем, что, с целью упрощеНИН способа, сточные воды пропускают черезThe method of cleaning wastewater from urea, characterized in that, in order to simplify the process, the wastewater is passed through
катиопообмеипые смолы.cationic resin types.
сильнокислотные например КУ-2.strongly acid such as KU-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1300090A SU451641A1 (en) | 1969-01-21 | 1969-01-21 | The method of wastewater treatment from urea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1300090A SU451641A1 (en) | 1969-01-21 | 1969-01-21 | The method of wastewater treatment from urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU451641A1 true SU451641A1 (en) | 1974-11-30 |
Family
ID=20444435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1300090A SU451641A1 (en) | 1969-01-21 | 1969-01-21 | The method of wastewater treatment from urea |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU451641A1 (en) |
-
1969
- 1969-01-21 SU SU1300090A patent/SU451641A1/en active
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