Effect of Wastewater Treatment Process on Soil Phosphorus and Runoff Phosphorus Losses from Biosolids-amended Soils Under a Simulated Rainfall
Author: Chad John Penn
Publisher:
Published: 2001
Total Pages: 196
ISBN-13:
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Author: Chad John Penn
Publisher:
Published: 2001
Total Pages: 196
ISBN-13:
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Published: 2009
Total Pages: 1020
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DOWNLOAD EBOOKAuthor: M. A. Tabatabai
Publisher:
Published: 2005
Total Pages: 752
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Published: 2004
Total Pages:
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DOWNLOAD EBOOKRunoff from agricultural fields amended with animal manure or fertilizer is a source of phosphorus (P) pollution to surface waters, which can have harmful effects such as eutrophication. The objectives of this study were to evaluate the impact of soil P status and the P composition of manure sources on P in runoff, characterize the effects of manure sources on mass loss of dissolved reactive P (DRP), total dissolved P (TDP), algal available P (AAP) and total P (TP) in runoff, and enhance the PLAT database with respect to soluble P attenuating factor (SPAF) and non-soluble P attenuating factor (NSPAF) values. Soil boxes set at 5% slopes received 7.5 cm hr-1 of simulated rainfall. Study soils included a Kenansville loamy sand (loamy siliceous subactive thermic Arenic Hapludults, a Coastal Plain soil) and a Davidson silt loam (kaolinitic thermic Rhodic Kandiudults, a Piedmont soil). Soil test P concentrations ranged from 16 to 283 mg P kg-1. Sources of P included broiler litter (BRL), breeder manure (BRD), breeder manure treated with three rates of alum (Al2(SO4)3) BRD0-0 kg m-2, BRDL-3.9 kg m-2, and BRDH-7.8 kg m-2 and DAP along with an unamended control. All manure sources were applied at 66 kg P ha-1. Water extractable P (WEP) represented an average of 10?b 6% total P in manure. Runoff samples were taken over a 30-min period. Piedmont soil contained greater amounts of clay, Al and Fe concentrations, and higher P sorption capacities that produced significantly lower DRP, TDP, AAP, and TP losses than the Coastal Plain soil. Runoff P loss did not differ for low and high STP soils of same taxonomy with the exception of AAP mass losses for Coastal Plain soil samples. Water extractable P in manures accounted for all DRP lost in runoff with DRP correlating strongly with WEP concentration (0.9961). A weak relationship between DRP in runoff and WEP applied to soil boxes was observed (R2=0.6547) and increased when a possible outlying manure treatment, BRL, was omitted from r.
Author: American Society of Agronomy
Publisher:
Published: 2000
Total Pages: 518
ISBN-13:
DOWNLOAD EBOOKAuthor: Juan M. Lema
Publisher: IWA Publishing
Published: 2017-06-15
Total Pages: 690
ISBN-13: 1780407866
DOWNLOAD EBOOKThis book introduces the 3R concept applied to wastewater treatment and resource recovery under a double perspective. Firstly, it deals with innovative technologies leading to: Reducing energy requirements, space and impacts; Reusing water and sludge of sufficient quality; and Recovering resources such as energy, nutrients, metals and chemicals, including biopolymers. Besides targeting effective C,N&P removal, other issues such as organic micropollutants, gases and odours emissions are considered. Most of the technologies analysed have been tested at pilot- or at full-scale. Tools and methods for their Economic, Environmental, Legal and Social impact assessment are described. The 3R concept is also applied to Innovative Processes design, considering different levels of innovation: Retrofitting, where novel units are included in more conventional processes; Re-Thinking, which implies a substantial flowsheet modification; and Re-Imagining, with completely new conceptions. Tools are presented for Modelling, Optimising and Selecting the most suitable plant layout for each particular scenario from a holistic technical, economic and environmental point of view.
Author:
Publisher:
Published: 2000
Total Pages: 38
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DOWNLOAD EBOOKAuthor: John Christopher Roberts
Publisher:
Published: 2005
Total Pages: 76
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DOWNLOAD EBOOKKeywords: manure, STP, AAP TDP, DRP, TP, alum, runoff.
Author: John Welti White
Publisher:
Published: 2002
Total Pages: 304
ISBN-13:
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Publisher:
Published: 2003
Total Pages: 2084
ISBN-13:
DOWNLOAD EBOOKVols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.