PL400741A1 - Method of treatment of pig slurry suspension - Google Patents

Method of treatment of pig slurry suspension

Info

Publication number
PL400741A1
PL400741A1 PL400741A PL40074112A PL400741A1 PL 400741 A1 PL400741 A1 PL 400741A1 PL 400741 A PL400741 A PL 400741A PL 40074112 A PL40074112 A PL 40074112A PL 400741 A1 PL400741 A1 PL 400741A1
Authority
PL
Poland
Prior art keywords
slurry
filtration
calcium hydroxide
pig manure
filtrate
Prior art date
Application number
PL400741A
Other languages
Polish (pl)
Other versions
PL220702B1 (en
Inventor
Zygmunt Kowalski
Agnieszka Makara
Józef Hoffmann
Krystyna Hoffmann
Original Assignee
Politechnika Krakowska Im. Tadeusza Kosciuszki
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 Politechnika Krakowska Im. Tadeusza Kosciuszki filed Critical Politechnika Krakowska Im. Tadeusza Kosciuszki
Priority to PL400741A priority Critical patent/PL220702B1/en
Publication of PL400741A1 publication Critical patent/PL400741A1/en
Publication of PL220702B1 publication Critical patent/PL220702B1/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

  • Fertilizers (AREA)

Abstract

Przedmiotem wynalazku jest sposób obróbki zawiesiny gnojowicy świńskiej poprzez rozdział na fazę stałą i ciekłą, przy zastosowaniu filtracji. Sposób polega na tym, że zawiesinę gnojowicy świńskiej zmineralizowanej kwasami mineralnymi neutralizuje się zawiesiną wodorotlenku wapnia do pH co najmniej 10,5, po czym do zneutralizowanej zmineralizowanej zawiesiny gnojowicy dodaje się fosforan jednowapniowy korzystnie w proporcji wagowej od 0,8/1 do 1,2/1 w stosunku do zawartej w gnojowicy wyjściowej suchej masy. Następnie dodaje się do przetworzonej zawiesiny gnojowicy zawiesinę wodorotlenku wapnia lub wodorotlenek wapnia w takiej ilości, aby otrzymać pH zawiesiny co najmniej 10,5, po czym filtruje się w znany sposób na filtrze ciśnieniowym, stosując odpowiednie ciśnienie, w podwyższonej temperaturze. Sposób jest przydatny w szczególności do eliminacji odorów z osadu pofiltracyjnego i filtratu po filtracji gnojowicy świńskiej oraz fosforu, wapnia i magnezu z tego filtratu.The invention provides a method for processing a slurry of pig manure by separating it into a solid and liquid phase using filtration. The method involves neutralizing a slurry of pig manure mineralized with mineral acids with a calcium hydroxide suspension to a pH of at least 10.5, and then adding monocalcium phosphate, preferably in a weight ratio of 0.8/1 to 1.2/1 based on the initial dry matter content of the slurry, to the neutralized slurry. A calcium hydroxide suspension or calcium hydroxide is then added to the processed slurry in an amount to obtain a pH of at least 10.5, followed by filtration in a known manner using a pressure filter, applying appropriate pressure at elevated temperature. The method is particularly useful for eliminating odors from the post-filtration sludge and filtrate after filtration of pig manure, as well as phosphorus, calcium and magnesium from this filtrate.

PL400741A 2012-09-11 2012-09-11 Method for treating a suspension of pig manure PL220702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL400741A PL220702B1 (en) 2012-09-11 2012-09-11 Method for treating a suspension of pig manure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL400741A PL220702B1 (en) 2012-09-11 2012-09-11 Method for treating a suspension of pig manure

Publications (2)

Publication Number Publication Date
PL400741A1 true PL400741A1 (en) 2014-03-17
PL220702B1 PL220702B1 (en) 2015-12-31

Family

ID=50240945

Family Applications (1)

Application Number Title Priority Date Filing Date
PL400741A PL220702B1 (en) 2012-09-11 2012-09-11 Method for treating a suspension of pig manure

Country Status (1)

Country Link
PL (1) PL220702B1 (en)

Also Published As

Publication number Publication date
PL220702B1 (en) 2015-12-31

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