Release of phosphorus from ash produced by incinerating waste activated sludge from enhanced biological phosphorus removal

Abstract

Research Article| July 01 1996 Release of phosphorus from ash produced by incinerating waste activated sludge from enhanced biological phosphorus removal Yoshitaka Matsuo Yoshitaka Matsuo Search for other works by this author on: This Site PubMed Google Scholar Water Sci Technol (1996) 34 (1-2): 407–415. https://doi.org/10.2166/wst.1996.0398 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Yoshitaka Matsuo; Release of phosphorus from ash produced by incinerating waste activated sludge from enhanced biological phosphorus removal. Water Sci Technol 1 July 1996; 34 (1-2): 407–415. doi: https://doi.org/10.2166/wst.1996.0398 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex A technical problem involved in the phosphorus removal using the enhanced biological phosphorus removal (EBPR) process is disposal of the phosphorus rich waste sludge. There are possibilities that any phosphorus in the disposed sludge would release to water environment. If the release occurs, it will nullify the efforts made in wastewater treatment. This paper reports results of a preliminary study made to examine the fate of phosphorus in the ash is produced by incinerating waste sludge from a laboratory unit of the EBPR process. A large part of phosphorus in the ash released in a relatively short time. Most of the phosphorus released at a normal temperature was apparently polyphosphate. The release was very fast at a high temperature. The finding suggests that hot water elutriation could be used as a means of recovering phosphorus from the ash. It was also suggested that the release could be prevented by adding an appropriate amount of iron to the sludge to be incinerated. The released phosphorus was susceptible to precipitation by metals, especially iron. Ash disposal, enhanced biological phosphorus removal (EBPR), eutrophication control, incineration, iron addition, land filling, phosphorus release, polyphosphates, waste activated sludge This content is only available as a PDF. © IWA Publishing 1996 You do not currently have access to this content.