Reactive Phosphorus Removal from Aquaculture and Poultry Productions Systems Using Polymeric Hydrogels

2003 ◽  
Vol 37 (2) ◽  
pp. 423-427 ◽  
Author(s):  
Peter Kofinas ◽  
Dimitri R. Kioussis
Keyword(s):  
Phosphorus Removal ◽  
Polymeric Hydrogels ◽  
Reactive Phosphorus

Pilot Testing for Low-Level Phosphorus Removal: Confronting Non-Reactive Phosphorus Challenges

2010 ◽  
Vol 2010 (16) ◽  
pp. 959-975 ◽  
Author(s):  
Nicholas Tooker ◽  
Susan Guswa ◽  
Jack Horton ◽  
Merrill Hastings ◽  
Cheryl Devalk
Keyword(s):  
Phosphorus Removal ◽  
Pilot Testing ◽  
Low Level ◽  
Reactive Phosphorus

scholarly journals Tertiary phosphorus removal to extremely low levels by coagulation-flocculation and cloth-filtration

2020 ◽  
Vol 82 (1) ◽  
pp. 131-143 ◽  
Author(s):  
T. Fundneider ◽  
L. Alejo ◽  
S. Lackner
Keyword(s):  
Total Phosphorus ◽  
Phosphorus Removal ◽  
Membrane Filtration ◽  
Soluble Reactive Phosphorus ◽  
Organic Micropollutants ◽  
Synergy Effects ◽  
Coupled Process ◽  
Low Levels ◽  
Reactive Phosphorus ◽  
Solids Removal

Abstract Higher standards in the European Water Framework Directive and national directive demand advanced wastewater treatment for removal of nutrients and organic micropollutants before the discharge into water bodies. Systematic investigations regarding relative dosage and filtration processes for removal of flocculated solids are currently lacking. In this study, the performance of technologies for advanced removal of total phosphorus down to <100 μg/L with pile cloth-filtration (CF) and membrane filtration was verified and synergy effects for the removal of other contaminants were identified. The results show that an over-stoichiometric addition of coagulants of >5 mol Me3+/mol sRP was necessary to achieve soluble reactive phosphorus (sRP) concentrations of <50 μg/L in the effluent. After the coupled process of tertiary phosphorus removal and solids removal, the soluble non-reactive phosphorus (sNRP) concentration regulates the lowest total phosphorus effluent concentration. sNRP is also partially, but not completely, removed by the use of coagulants. CF has proven to be an alternative technology for the removal of phosphorus and total suspended solids below the detection limit.

scholarly journals Phosphorus removal in denitrifying woodchip bioreactors varies by wood type and water chemistry

2021 ◽  
Author(s):  
Ana Paula Sanchez Bustamante-Bailon ◽  
Andrew Margenot ◽  
Richard A. C. Cooke ◽  
Laura E. Christianson
Keyword(s):  
Particle Size ◽  
Environmental Factors ◽  
Phosphorus Removal ◽  
Agricultural Runoff ◽  
Added Value ◽  
Water Matrix ◽  
Batch Tests ◽  
Dissolved Reactive Phosphorus ◽  
Reactive Phosphorus ◽  
P Removal

AbstractDenitrifying woodchip bioreactors are a practical nitrogen (N) mitigation technology but evaluating the potential for bioreactor phosphorus (P) removal is highly relevant given that (1) agricultural runoff often contains N and P, (2) very low P concentrations cause eutrophication, and (3) there are few options for removing dissolved P once it is in runoff. A series of batch tests evaluated P removal by woodchips that naturally contained a range of metals known to sorb P and then three design and environmental factors (water matrix, particle size, initial dissolved reactive phosphorus (DRP) concentration). Woodchips with the highest aluminum and iron content provided the most dissolved P removal (13±2.5 mg DRP removed/kg woodchip). However, poplar woodchips, which had low metals content, provided the second highest removal (12±0.4 mg/kg) when they were tested with P-dosed river water which had a relatively complex water matrix. Chemical P sorption due to woodchip elements may be possible, but it is likely one of a variety of P removal mechanisms in real-world bioreactor settings. Scaling the results indicated bioreactors could remove 0.40 to 13 g DRP/ha. Woodchip bioreactor dissolved P removal will likely be small in magnitude, but any such contribution is an added-value benefit of this denitrifying technology.

Heterotrophic Kinetic Parameter Estimation for Enhanced Biological Phosphorus Removal Processes Operated in Conventional and Membrane-Assisted Modes

2006 ◽  
Vol 41 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Zhe Zhang ◽  
Eric R. Hall
Keyword(s):  
Parameter Estimation ◽  
Phosphorus Removal ◽  
Growth Yield ◽  
Pilot Scale ◽  
Enhanced Biological Phosphorus Removal ◽  
Biological Phosphorus Removal ◽  
Nitrogen And Phosphorus ◽  
Parameter Values ◽  
The Impact ◽  
Biological Phosphorus

Abstract Parameter estimation and wastewater characterization are crucial for modelling of the membrane enhanced biological phosphorus removal (MEBPR) process. Prior to determining the values of a subset of kinetic and stoichiometric parameters used in ASM No. 2 (ASM2), the carbon, nitrogen and phosphorus fractions of influent wastewater at the University of British Columbia (UBC) pilot plant were characterized. It was found that the UBC wastewater contained fractions of volatile acids (SA), readily fermentable biodegradable COD (SF) and slowly biodegradable COD (XS) that fell within the ASM2 default value ranges. The contents of soluble inert COD (SI) and particulate inert COD (XI) were somewhat higher than ASM2 default values. Mixed liquor samples from pilot-scale MEBPR and conventional enhanced biological phosphorus removal (CEBPR) processes operated under parallel conditions, were then analyzed experimentally to assess the impact of operation in a membrane-assisted mode on the growth yield (YH), decay coefficient (bH) and maximum specific growth rate of heterotrophic biomass (µH). The resulting values for YH, bH and µH were slightly lower for the MEBPR train than for the CEBPR train, but the differences were not statistically significant. It is suggested that MEBPR simulation using ASM2 could be accomplished satisfactorily using parameter values determined for a conventional biological phosphorus removal process, if MEBPR parameter values are not available.

Anaerobic Digestion of Primary Sludge Containing Iron Phosphate

1973 ◽  
Vol 8 (1) ◽  
pp. 91-109 ◽  
Author(s):  
M.E. Jack ◽  
G.J. Farquhar ◽  
G.M. Cornwall
Keyword(s):  
Anaerobic Digestion ◽  
Phosphorus Removal ◽  
Municipal Wastewater ◽  
Iron Phosphate ◽  
Chemical Precipitation ◽  
Task Group ◽  
Iron Compounds ◽  
Primary Sludge ◽  
Group Report ◽  
Aluminum Compounds

Abstract The importance of phosphorus as a nutrient in the eutrophication of lakes and rivers has been well established (Fruh 1967). It has been shown in addition that a significant amount of this phosphorus arises from the discharge of treated and untreated municipal wastewater (Task Group Report 1967). Consequently, measures are being taken, notably in the Province of Ontario, for removal of phosphorus from wastewater by means of chemical precipitation. Chemicals exhibiting satisfactory phosphorus removal include lime, iron compounds and aluminum compounds (Leckie and Stumm 1970; Schmid 1968; Wuhrman 1968).

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