A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
The use of calcined paper mill sludge as a chemical precipitant in the simultaneous removal of ammonium and phosphate : paper mill waste recycling and reuse (2020)


Myllymäki, P., Pesonen, J., Romar, H., Hu, T., Tynjälä, P., & Lassi, U. (2020). The use of calcined paper mill sludge as a chemical precipitant in the simultaneous removal of ammonium and phosphate : paper mill waste recycling and reuse. Desalination and Water Treatment, 194, 459-467. https://doi.org/10.5004/dwt.2020.25385


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajatMyllymäki, Pekka; Pesonen, Janne; Romar, Henrik; Hu, Tao; Tynjälä, Pekka; Lassi, Ulla

Lehti tai sarjaDesalination and Water Treatment

ISSN1944-3994

eISSN1944-3986

Julkaisuvuosi2020

Volyymi194

Artikkelin sivunumerot459-467

KustantajaDesalination Publications

JulkaisumaaYhdysvallat (USA)

Julkaisun kielienglanti

DOIhttps://doi.org/10.5004/dwt.2020.25385

Julkaisun avoin saatavuusEi avoin

Julkaisukanavan avoin saatavuus

Julkaisu on rinnakkaistallennettu (JYX)https://jyx.jyu.fi/handle/123456789/72160


Tiivistelmä

Currently, recycling and re-use of materials is extremely important due to the diminishing of natural resources. The objective of the European Union’s circular economy strategy is to increase recycling and the use of industrial waste materials and side streams as secondary raw materials. In this study, a chemical precipitation method to simultaneously remove ammonium nitrogen and phosphate from the liquid phase of anaerobic digestate using calcined paper mill sludge was studied. Papermill sludge is a waste material that forms in the paper-making process. In addition, commercial calcium oxide (CaO) was used as a reference precipitant. The suitability of the formed precipitate’s composition for recycled fertilizer use was also considered. The study results indicated that calcined paper mill sludge was as effective precipitant as commercial CaO in the removal of ammonium nitrogen and phosphate from the synthetic wastewater. In addition, the results indicated that calcined paper mill sludge removed efficiently phosphate from the liquid phase of anaerobic digestate, which led to the formation of hydroxyapatite, Ca5(PO4)3(OH). In this research we have shown, that calcined paper mill sludge can be used to produce recycled, slow-release, solid fertilizer. Another possible reaction, such as adsorption was also considered.


YSO-asiasanatlietepaperiteollisuusmassa- ja paperiteollisuusjätteiden hyötykäyttösaostusammoniumnitraattifosfaatitlannoitteet

Vapaat asiasanatAmmonium nitrogen; Calcined paper mill sludge; Hydroxyapatite; Phosphate; Precipitation; Recycled fertilizer


Liittyvät organisaatiot


OKM-raportointiKyllä

Raportointivuosi2020

JUFO-taso1


Viimeisin päivitys 2024-26-03 klo 09:19