Standard price: £29.00


Available as an ebook:
Please purchase via www.iwaponline.comOpens in new window

Also part of Water Intelligence Online Digital Reference Library

Standard ePrice: £29.00


Purchase ebook

Author(s): April Z. Gu

Publication Date: 15/11/2014

Pages: 120

ISBN13: 9781780406893

eISBN: 9781780406893


OverviewExpand or collapse me

 To address increasing water quality problems associated with eutrophication, state environmental agencies and the United States Environmental Protection Agency (EPA) are requiring more stringent WWTP effluent total phosphorus concentrations that are below 0.10 mg/L and more recently values as low as 0.01 to 0.06 mg/L have been considered. These represent a large decrease in effluent phosphorus permit concentration, which has challenged the POTWs to investigate and evaluate treatment alternatives to achieve additional phosphorus removal by tertiary treatment and to determine the most minimum concentrations possible. Previous studies indicated that as more advanced tertiary treatment processes are applied to eliminate nearly all the soluble reactive P in order to meet the extremely low TP limits, other non-reactive phosphorus species – such as organic P and acid-hydrolysable P – become a larger fraction of the effluent P and their behavior under different treatment methods needs to be understood. The fractional composition of effluent phosphorus and its variations between different WWTP processes have previously received little attention. Therefore, an urgent need exists to gain further fundamental understanding of effluent P chemical species in order to interpret and improve technologies for phosphorus removal to very low limits. The objective of this study is to conduct a survey of P fractions and their fate and susceptibility to a range of different P removal processes, especially tertiary P removal processes. This will help us gain insights into the removal efficiency and mechanism of different P fractions through various treatment technologies.

Also available as part of your Water Inteligence Online subscription

Share this page:

The latest from @IWApublishing

Discover our latest selection of papers made through , selected by Chief Editors for broad-s… 6 hours 59 min ago
RT : ETHIOPIA: Determinants of microbiological quality of in camps and host communities in Gamb… 10 hours 6 min ago
RT : How does greywater separation impact the operation of conventional wastewater treatment plants? Read this journal a… 11 hours 47 min ago