MD165Z - Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates - Google Patents

Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates Download PDF

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Publication number
MD165Z
MD165Z MDS20090061A MDS20090061A MD165Z MD 165 Z MD165 Z MD 165Z MD S20090061 A MDS20090061 A MD S20090061A MD S20090061 A MDS20090061 A MD S20090061A MD 165 Z MD165 Z MD 165Z
Authority
MD
Moldova
Prior art keywords
sewage waters
stockbreeding
complexes
purification
phosphates
Prior art date
Application number
MDS20090061A
Other languages
Romanian (ro)
Russian (ru)
Inventor
Ольга КОВАЛЁВА
Виктор КОВАЛЁВ
Думитру УНГУРЯНУ
Ион КЛИКИЧ
Original Assignee
Государственный Университет Молд0
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Application filed by Государственный Университет Молд0 filed Critical Государственный Университет Молд0
Priority to MDS20090061A priority Critical patent/MD165Z/en
Publication of MD165Z publication Critical patent/MD165Z/en

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Abstract

The invention relates to a process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates and may be used for increasing the effectiveness of the biological purification of sewage waters of stockbreeding complexes.The proposed process includes treatment of sewage waters with eluates obtained upon regeneration of ion-exchange resins, used upon water softening with sodium chloride, which are treated with 5…7% calcium hydroxide, are decanted, and the formed sediment is dissolved in sulphuric acid. To the obtained solution of magnesium sulphate is added polyacrylamide in the following ratio, g/L: magnesium sulphate 30…50 and polyacrylamide 0.1…0.2. The sewage waters are treated with the obtained magnesium-containing solution at a mass ratio [Mg2+] : [NH4 +/PO4 3-] of (5.2…5.5):1 and pH=7.0…8.5. Then, it is carried out the electroflotation at the current cathodic density of 0.1…0.3 A/dm2 and the final treatment of sewage waters by consecutive anaerobic and aerobic treatment thereof.
MDS20090061A 2009-04-17 2009-04-17 Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates MD165Z (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDS20090061A MD165Z (en) 2009-04-17 2009-04-17 Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDS20090061A MD165Z (en) 2009-04-17 2009-04-17 Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates

Publications (1)

Publication Number Publication Date
MD165Z true MD165Z (en) 2010-10-31

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MDS20090061A MD165Z (en) 2009-04-17 2009-04-17 Process for the purification of sewage waters of stockbreeding complexes from ammonium nitrogen and phosphates

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD320Z (en) * 2010-05-24 2011-08-31 Государственный Университет Молд0 Installation for the regeneration of cartridge with activated carbon or mineral sorbents used for purification of water from organic compounds

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2771F1 (en) * 2003-12-29 2005-05-31 Кармез, Сочиетате Пе Акциунь Process for sewage water biochemical treatment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2771F1 (en) * 2003-12-29 2005-05-31 Кармез, Сочиетате Пе Акциунь Process for sewage water biochemical treatment

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Голубовская Э.К. Биологические основы очистки воды. Москва, Высшая школа, с. 161-164 *
Калюжный С.В., Данилович Д.А., Ножевникова А.Н. Анаэробная биологическая очистка стоных вод. Итоги науки и техники. Биотехнология, т. 29, ВИНИТИ, Москва, 1991 *
Лукиных Н.А. и др. Методы доочистки сточных вод. Москва, Стройиздат, 1978, с. 129-130 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD320Z (en) * 2010-05-24 2011-08-31 Государственный Университет Молд0 Installation for the regeneration of cartridge with activated carbon or mineral sorbents used for purification of water from organic compounds

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