Drinking-water treatment residuals (WTRs) can immobilize excess soil phosphorus (P), but little is known about the long-term P retention by WTRs. To evaluate the long-term P sorption characteristics of one Fe- and one Al-based WTR, physicochemical properties pertinent to time-dependency and hysteresis of P sorption were assessed. This study also investigated the P sorption mechanisms that could...

In recent years, a co-ordinated programme of data collection has resulted in the collation of sub-hourly time-series of hydrological, sediment and phosphorus loss data, together with soil analysis, cropping and management information for two small (< 200 ha) headwater agricultural catchments in the UK Midlands (Rosemaund, Herefordshire and Cliftonthorpe, Leicestershire). These data sets have al...

Phosphorus is an attractive negative electrode material for sodium ion batteries due to its high theoretical specific capacity of 2596 mA h g . However, it suffers poor conductivity (10 12 S m ), slow reaction dynamics, and large volume expansion ( 440%) during the sodiation process, leading to rapid capacity decay upon cycling. Great attention has been devoted to improving the electrical condu...

In this paper a new model, tailor-made for nutrient deficient aerobic COD removal, is presented. The Activated Sludge Model No. 1 is chosen as a basis for model development. The original model is extended to include (1) phosphorus state variables; (2) phosphorus and nitrogen limited heterotrophic growth and (3) an additional active biomass component to model predation by higher-order organisms,...

The mechanism by which phosphorus levels are maintained in the body was investigated by analyzing changes in gene expression in the rat kidney following administration of a high phosphorus (HP) diet. Male Wistar rats were divided into two groups and fed a diet containing 0.3% (control) or 1.2% (HP) phosphorous for 24 days. Phosphorous retention was not significantly increased in HP rats, but fr...

Fibroblast growth factor 23 (FGF23) is a bone-derived hormone that regulates phosphorus and vitamin D metabolism by increasing the rate of urinary excretion of phosphate and by inhibiting the renal production of 1,25-dihydroxyvitamin D.1 In patients with chronic kidney disease (CKD), circulating FGF23 levels rise progressively as a physiological adaption to compensate for persistent phosphate r...

Phosphorus (P) nonpoint source pollution from soil to water is increasing dramatically, leading the eutrophication of bodies. Using amendment materials for P retention in a promising strategy environmental restoration and management. This has attracted significant attention because its highly effective retention. study reviews management strategies water, including basic forms accumulation situ...

Extensive efforts are underway to reduce phosphorus (P) export from the Lake Erie watershed. On Canadian side, Thames River is largest tributary source of P Erie’s western basin. However, role dams in retaining and modifying riverine loading lake has not been comprehensively evaluated. We assessed whether Fanshawe Reservoir, dam reservoir on River, acts as a or sink P, using year-round discharg...

This study investigated the removal of nitrogen and phosphorus from the effluent of a submerged anaerobic membrane bioreactor (SAnMBR) by means of a lab-scale photobioreactor in which algae biomass was cultured in a semi-continuous mode for a period of 42 days. Solids retention time was 2 days and a stable pH value in the system was maintained by adding CO(2). Nitrogen and phosphorus concentrat...