MD1669G2 - Procedeu de epurare a apelor reziduale de formaldehidă - Google Patents
Procedeu de epurare a apelor reziduale de formaldehidă Download PDFInfo
- Publication number
- MD1669G2 MD1669G2 MD99-0181A MD990181A MD1669G2 MD 1669 G2 MD1669 G2 MD 1669G2 MD 990181 A MD990181 A MD 990181A MD 1669 G2 MD1669 G2 MD 1669G2
- Authority
- MD
- Moldova
- Prior art keywords
- treatment
- sewage
- formaldehyde
- formaldehydesummary
- sawdust
- Prior art date
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Invenţia se referă la procedee de purificare a apelor reziduale de formaldehidă.Esenţa invenţiei constă în aceea că se propune un procedeu de purificare a apelor reziduale de formaldehidă, care include tratarea lor cu uree şi sulfat de aluminiu în cantitate de 0,1…1,5 g/L în mediu acid (pH 2) la agitare şi încălzire până la temperatura de 20…30°C timp de 1…2 ore. Apoi în suspensia formată se introduce rumeguşul de lemn în cantitate de 10…15 %, iar procesul de separare a precipitatului se conduce cu ajutorul centrifugii.Rezultatul constă în accelerarea procesului de epurare a apelor reziduale de formaldehidă, micşorarea temperaturii şi ridicarea eficacităţii procesului de epurare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD99-0181A MD1669G2 (ro) | 1999-06-17 | 1999-06-17 | Procedeu de epurare a apelor reziduale de formaldehidă |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD99-0181A MD1669G2 (ro) | 1999-06-17 | 1999-06-17 | Procedeu de epurare a apelor reziduale de formaldehidă |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| MD990181A MD990181A (ro) | 2001-02-28 |
| MD1669F2 MD1669F2 (ro) | 2001-05-31 |
| MD1669G2 true MD1669G2 (ro) | 2001-11-30 |
Family
ID=19739431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD99-0181A MD1669G2 (ro) | 1999-06-17 | 1999-06-17 | Procedeu de epurare a apelor reziduale de formaldehidă |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD1669G2 (ro) |
-
1999
- 1999-06-17 MD MD99-0181A patent/MD1669G2/ro unknown
Non-Patent Citations (2)
| Title |
|---|
| Сахарнов А.В., Зеге И.П. Очистка сточных вод и газовых выбросов в лакокрасочной промышленности. М: Химия, 1979 г. * |
| Фишман Г.И., Певзнер С.Л., Райкина С.Л. и др. Очистка сточных вод при производстве некоторых пластических масс.// Пластические массы, 1975, N5, с.40-42 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD990181A (ro) | 2001-02-28 |
| MD1669F2 (ro) | 2001-05-31 |
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