Washing and Heat Treatment of Aluminum-Based Drinking Water Treatment Residuals to Optimize Phosphorus Sorption and Nitrogen Leaching: Considerations for Lake Restoration

Sammanfattning

Drinking water treatment residuals (DWTRs) generated during drinking water treatment have been proposed for use in lake restoration as a solid-phase sorbent to inactivate phosphorus (P) in lake sediment. However, treatments that minimize leaching of nitrogen (N) and optimize P sorption capacity may be necessary prior to use. This study assessed seven different treatment methods, including washing and heat treatments at different temperatures and with and without oxygen limitation, among two DWTRs from Thailand. Results showed that oxygen-limited heat treatment at 600 degrees C substantially reduced N leaching (

Nyckelord

adsorption; alum sludge; binding efficiency; biochar; coagulant; eutrophication; oxidation; pyrolysis

Publicerad i

Water
2021, volym: 13, nummer: 18, artikelnummer: 2465

SLU författare

• Huser, Brian

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

Globala målen (SDG)

SDG6 Rent vatten och sanitet för alla

UKÄ forskningsämne

Vattenbehandlingsbioteknik

Publikationens identifierare

• DOI: https://doi.org/10.3390/w13182465

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/113670