Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Availability of Phosphorus Fractions in Sewage Sludge
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Availability, Fractionation and Leaching Potential of Phosphorus from Sewage Sludge and Manure-amended Soils
Author: Muhammad Akhtar
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description
Factors Affecting the Crop Availability of Phosphorus in Sewage-sludge-amended Soils
Author: Alexander James Pastene
Publisher:
ISBN:
Category : Phosphorus in soils
Languages : en
Pages : 314
Book Description
Publisher:
ISBN:
Category : Phosphorus in soils
Languages : en
Pages : 314
Book Description
Phosphorus dynamics in soil and plant availability of fertilizers from phosphorus recycling evaluated in field and pot experiments
Author: Ricardo Alfonso Cabeza Pérez
Publisher: Cuvillier Verlag
ISBN: 3736934769
Category : Science
Languages : en
Pages : 166
Book Description
The limited P resources make it necessary to recover P from waste materials. Different chemical and thermal processes are given resulting in P-fertilizers with different availability to the plants. We tested the P availability of recycled P products in comparison to standard P fertilizers triple superphosphate (TSP) and rock phosphate (RP) in a pot experiment. The experiment was performed on an acid (pH 4.4) and a neutral soil (pH 6.8) of low available P. Eight recycled P products were evaluated, 4 from chemical processes (3 magnesium ammonium-phosphate [MAP] of different sewage treatment plants and a precipitated calcium phosphate [Ca-P]) and 4 from thermal processes (a heavy metal depleted sewage sludge [Sl-ash], and alkali sinter phosphate [Sinter P], a cupola furnace slag from sewage sludge [Cupola slag] and a mono-incinerated meat and-bone meal [MB meal ash]). Plant availability was in the following order: in the acid soil, TSP ≥ MAP ≥ precipitate calcium phosphate (Ca-P) ≥ thermal products ≥ rock phosphate (RP). Although the products Sinter-P and Cupola slag were as effective as TSP, the first in the acid soil and the second in a neutral pH soil. To explain the differences in availability the P dynamics after fertilization was evaluated by a fractionation P extraction and the isotopically exchangeable P (IEP). The extractants and the order used in the sequential fractionation procedure were: anion exchange resins (resin-Pi), NaHCO3 0.5 M, NaOH 1 M, HCl 1 M, HCl concentrated and H2SO4 concentrated plus H2O2 (residual P). Phosphorus from MAP products was extracted mainly by resin-Pi, NaHCO3 and NaOH and was comparable to the fate of P from TSP. Ca-P was found mainly in resin-Pi, NaHCO3-Pi and NaOH-Pi in the acid soil. In the neutral soil, the P from Ca-P was not found in resin-Pi but in NaOH-Pi and in HCl 1M Pi. The thermal products were separated in two groups according to the extraction procedure. The P from the products Sinter-P and Cupola slag in the acid soil were found mainly in resin-Pi, NaHCO3-Pi and NaOH-Pi, however the amount of P found in resin Pi was in tendency lower than for TSP. The products Sl-ash and MB meal ash are in the second group, which were similar to RP. The P from these products was mainly found in HCl 1M-Pi fraction. The IEP in soils fertilized with MAP products increased in a similar amount than in soils fertilized with TSP in both soils. Calcium phosphate was more effective in the acid soil Düshorn being similar to the MAP products. The thermal Sinter-P showed an IEP comparable to TSP in the acid soil and the thermal product Cupola slag was similar to TSP in both soils. The other thermal products, Sl-ash and MB meal ash were ineffective to increase the IEP in both soils.
Publisher: Cuvillier Verlag
ISBN: 3736934769
Category : Science
Languages : en
Pages : 166
Book Description
The limited P resources make it necessary to recover P from waste materials. Different chemical and thermal processes are given resulting in P-fertilizers with different availability to the plants. We tested the P availability of recycled P products in comparison to standard P fertilizers triple superphosphate (TSP) and rock phosphate (RP) in a pot experiment. The experiment was performed on an acid (pH 4.4) and a neutral soil (pH 6.8) of low available P. Eight recycled P products were evaluated, 4 from chemical processes (3 magnesium ammonium-phosphate [MAP] of different sewage treatment plants and a precipitated calcium phosphate [Ca-P]) and 4 from thermal processes (a heavy metal depleted sewage sludge [Sl-ash], and alkali sinter phosphate [Sinter P], a cupola furnace slag from sewage sludge [Cupola slag] and a mono-incinerated meat and-bone meal [MB meal ash]). Plant availability was in the following order: in the acid soil, TSP ≥ MAP ≥ precipitate calcium phosphate (Ca-P) ≥ thermal products ≥ rock phosphate (RP). Although the products Sinter-P and Cupola slag were as effective as TSP, the first in the acid soil and the second in a neutral pH soil. To explain the differences in availability the P dynamics after fertilization was evaluated by a fractionation P extraction and the isotopically exchangeable P (IEP). The extractants and the order used in the sequential fractionation procedure were: anion exchange resins (resin-Pi), NaHCO3 0.5 M, NaOH 1 M, HCl 1 M, HCl concentrated and H2SO4 concentrated plus H2O2 (residual P). Phosphorus from MAP products was extracted mainly by resin-Pi, NaHCO3 and NaOH and was comparable to the fate of P from TSP. Ca-P was found mainly in resin-Pi, NaHCO3-Pi and NaOH-Pi in the acid soil. In the neutral soil, the P from Ca-P was not found in resin-Pi but in NaOH-Pi and in HCl 1M Pi. The thermal products were separated in two groups according to the extraction procedure. The P from the products Sinter-P and Cupola slag in the acid soil were found mainly in resin-Pi, NaHCO3-Pi and NaOH-Pi, however the amount of P found in resin Pi was in tendency lower than for TSP. The products Sl-ash and MB meal ash are in the second group, which were similar to RP. The P from these products was mainly found in HCl 1M-Pi fraction. The IEP in soils fertilized with MAP products increased in a similar amount than in soils fertilized with TSP in both soils. Calcium phosphate was more effective in the acid soil Düshorn being similar to the MAP products. The thermal Sinter-P showed an IEP comparable to TSP in the acid soil and the thermal product Cupola slag was similar to TSP in both soils. The other thermal products, Sl-ash and MB meal ash were ineffective to increase the IEP in both soils.
Phosphorus in Sewage Sludge and Animal Waste Slurries
Author: G. Hucker
Publisher: Springer
ISBN: 9027703175
Category : Science
Languages : en
Pages : 456
Book Description
Proceedings of the EEC Seminar Organized jointly by the CEC and the Institute for Soil Fertility, Haren (Gr) and held in Groningen, The Netherlands, June 12-13, 1980
Publisher: Springer
ISBN: 9027703175
Category : Science
Languages : en
Pages : 456
Book Description
Proceedings of the EEC Seminar Organized jointly by the CEC and the Institute for Soil Fertility, Haren (Gr) and held in Groningen, The Netherlands, June 12-13, 1980
Disinfection of Sewage Sludge; Technical, Economic and Microbiological Aspects
Author: Commission of the European Communities
Publisher: Springer Science & Business Media
ISBN: 9789027715029
Category : Nature
Languages : en
Pages : 270
Book Description
Proceedings of a Workshop, held in Zürich, May 11-13, 1982
Publisher: Springer Science & Business Media
ISBN: 9789027715029
Category : Nature
Languages : en
Pages : 270
Book Description
Proceedings of a Workshop, held in Zürich, May 11-13, 1982
Phosphorus: Polluter and Resource of the Future
Author: Christian Schaum
Publisher: IWA Publishing
ISBN: 1780408358
Category : Science
Languages : en
Pages : 592
Book Description
This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.
Publisher: IWA Publishing
ISBN: 1780408358
Category : Science
Languages : en
Pages : 592
Book Description
This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.
Plant Availability of Phosphorus and Heavy Metals in Soils Amended with Chemically-treated Sewage Sludge
Author: Wesley Dean Gestring
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 250
Book Description
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 250
Book Description
Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future
Author: Luke Gatiboni
Publisher: Frontiers Media SA
ISBN: 2889663574
Category : Science
Languages : en
Pages : 140
Book Description
Publisher: Frontiers Media SA
ISBN: 2889663574
Category : Science
Languages : en
Pages : 140
Book Description
Phosphorus Removal in Lower Great Lakes Municipal Treatment Plants
Author: Joseph V. DePinto
Publisher:
ISBN:
Category : Phosphorus
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category : Phosphorus
Languages : en
Pages : 162
Book Description