MD4702C1 - Process for biological treatment of sewage sediments - Google Patents

Process for biological treatment of sewage sediments

Info

Publication number
MD4702C1
MD4702C1 MDA20190046A MD20190046A MD4702C1 MD 4702 C1 MD4702 C1 MD 4702C1 MD A20190046 A MDA20190046 A MD A20190046A MD 20190046 A MD20190046 A MD 20190046A MD 4702 C1 MD4702 C1 MD 4702C1
Authority
MD
Moldova
Prior art keywords
biological treatment
sewage
sediment
activated sludge
primary sediment
Prior art date
Application number
MDA20190046A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD4702B1 (en
Inventor
Петру СПАТАРУ
Алексей МАФТУЛЯК
Игорь ПОВАР
Борис ПИНТИЛИЕ
Оксана СПЫНУ
Original Assignee
Институт Химии Моки
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Институт Химии Моки filed Critical Институт Химии Моки
Priority to MDA20190046A priority Critical patent/MD4702C1/en
Publication of MD4702B1 publication Critical patent/MD4702B1/en
Publication of MD4702C1 publication Critical patent/MD4702C1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Landscapes

  • Treatment Of Sludge (AREA)

Abstract

The invention relates to the biological treatment of sewage sludge, namely activated sludge and primary sediment. The invention can be applied to public sewage biological treatment plants, as well as sewage from livestock farms and foodstuff processing enterprises.The process provides for mixing at short-term aeration of the primary sediment with anaerobic activity and activated sludge with aerobic activity at a temperature of 40…45°C. The mixture is kept under meso-thermophilic conditions until it is clarified and delaminated to obtain a solid floating substance, aqueous phase and, possibly, organomineral sediment, and their subsequent separation. The optimal biological treatment time is 16…18 hours when using fresh primary sediment.
MDA20190046A 2019-05-31 2019-05-31 Process for biological treatment of sewage sediments MD4702C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20190046A MD4702C1 (en) 2019-05-31 2019-05-31 Process for biological treatment of sewage sediments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20190046A MD4702C1 (en) 2019-05-31 2019-05-31 Process for biological treatment of sewage sediments

Publications (2)

Publication Number Publication Date
MD4702B1 MD4702B1 (en) 2020-07-31
MD4702C1 true MD4702C1 (en) 2021-02-28

Family

ID=71831202

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20190046A MD4702C1 (en) 2019-05-31 2019-05-31 Process for biological treatment of sewage sediments

Country Status (1)

Country Link
MD (1) MD4702C1 (en)

Also Published As

Publication number Publication date
MD4702B1 (en) 2020-07-31

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
TC4A Change of name of proprietor (patent for invention)

Owner name: INSTITUTIA PUBLICA UNIVERSITATEA DE STAT DIN MOLDOVA, MD STR. A. MATEEVICI NR. 60, MD-2009, CHISINAU, REPUBLICA MOLDOVA

Free format text: PREVIOUS NAME OF PROPRIETOR: INSTITUTUL DE CHIMIE AL MEC, MD STR. ACADEMIEI NR. 3, MD-2028, REPUBLICA MOLDOVA