PL419630A1 - Method for simultaneous recovery for fertilizing purposes of phosphorus and microelement compounds from the extracts obtained after leaching of ashes received from incineration of sewage slurries - Google Patents
Method for simultaneous recovery for fertilizing purposes of phosphorus and microelement compounds from the extracts obtained after leaching of ashes received from incineration of sewage slurriesInfo
- Publication number
- PL419630A1 PL419630A1 PL419630A PL41963016A PL419630A1 PL 419630 A1 PL419630 A1 PL 419630A1 PL 419630 A PL419630 A PL 419630A PL 41963016 A PL41963016 A PL 41963016A PL 419630 A1 PL419630 A1 PL 419630A1
- Authority
- PL
- Poland
- Prior art keywords
- leaching
- phosphorus
- compounds
- microelement
- incineration
- Prior art date
Links
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób równoczesnego odzyskiwania do celów nawozowych związków fosforu i mikroelementów z ekstraktów po ługowaniu popiołów uzyskanych ze spalenia osadów ściekowych, obejmujący ługowanie popiołów kwasem azotowym(V) i/lub kwasem fosforowym(V) oraz neutralizację otrzymanego ekstraktu. Sposób polega na tym, że do ekstraktów po ługowaniu popiołów ze spalenia osadów ściekowych kwasem azotowym(V), kwasem fosforowym(V) lub ich mieszaniną, zawierających od 70 do 535 g PO43-/dm3, dodaje się roztwór wody amoniakalnej, korzystnie o stężeniu 15 - 30%, lub amoniak gazowy, aż do uzyskania wartości układu pH od 4,5 do 9,0, prowadząc neutralizację przy ciągłym mieszaniu, po czym uzyskaną pulpę poreakcyjną, kieruje się jako surowiec wyjściowy do procesu wytworzenia na jego bazie nawozów mineralnych.The subject of the notification is a method of simultaneous recovery for fertilizer purposes of phosphorus compounds and microelements from extracts after leaching of ash obtained from the combustion of sewage sludge, including leaching of ash with nitric acid (V) and / or phosphoric acid (V) and neutralization of the obtained extract. The method consists in adding ammonia water solution, preferably at 15-30%, or gaseous ammonia, until a pH value of 4.5 to 9.0 is obtained, carrying out neutralization with continuous mixing, after which the obtained reaction pulp is directed as the starting material for the production of mineral fertilizers based on it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL419630A PL237364B1 (en) | 2016-11-29 | 2016-11-29 | Method for simultaneous recovery for fertilizing purposes of phosphorus and microelement compounds from the extracts obtained after leaching of ashes received from incineration of sewage slurries |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL419630A PL237364B1 (en) | 2016-11-29 | 2016-11-29 | Method for simultaneous recovery for fertilizing purposes of phosphorus and microelement compounds from the extracts obtained after leaching of ashes received from incineration of sewage slurries |
Publications (2)
Publication Number | Publication Date |
---|---|
PL419630A1 true PL419630A1 (en) | 2018-06-04 |
PL237364B1 PL237364B1 (en) | 2021-04-06 |
Family
ID=62223408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL419630A PL237364B1 (en) | 2016-11-29 | 2016-11-29 | Method for simultaneous recovery for fertilizing purposes of phosphorus and microelement compounds from the extracts obtained after leaching of ashes received from incineration of sewage slurries |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL237364B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL441242A1 (en) * | 2022-05-23 | 2023-11-27 | Politechnika Krakowska im.Tadeusza Kościuszki | Method of obtaining humic substances in the process of utilization of municipal sewage sludge digestate |
-
2016
- 2016-11-29 PL PL419630A patent/PL237364B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL237364B1 (en) | 2021-04-06 |
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