A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment.

A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment. Research Abstract Details 

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A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment. Abstract Text:

M Hammer,J Clemens,M Hammer,J Clemens,

Fertilisers may contain pollutants that are applied to the field together with the nutrients. Comparing fertilisers is difficult because of their different concentrations of nutrients and pollutants. In this study an already existing model was taken. It was further developed to compare nutrient fluxes (N, P, K, Ca, Mg, S, humus) and pollutants (heavy metals and pharmaceuticals) of pig and cattle slurry as well as human urine. The data used is taken from literature and, in the case of pharmaceuticals in urine, daily excretion rates were calculated. An amount of 19 m3 ha(-1) a(-1) undiluted urine can be applied, limiting factor is sulphur. Without taking over-fertilisation into account, an addition of mineral fertiliser is required to any organic fertiliser application. In general, heavy metal, antibiotic, and hormone fluxes are higher by using animal manure then urine as fertiliser. However, additional loads of other pharmaceuticals consumed by humans have to be considered. Overall, the model is a suitable tool worthwhile to be extended in aspects of hygiene, environmental impacts as for example, degradation processes as well as ecotoxicology.

A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment. Publishing Authors By Initials

M Hammer,J Clemens,M Hammer,J Clemens,

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A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Water science and technology : a journal of the In

VOLUME: 56

Page Numbers: 201-9

Journal Abbreviation: Water Sci. Technol.

ISSN: 0273-1223

DAY: 20

MONTH: 09

YEAR: 2007

A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment. Information

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LANGUAGE: eng

NlmUniqueID: 9879497

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Grant and Affiliation Information for A tool to evaluate the fertiliser value and the environmental impact of substrates from wastewater treatment.

AFFILIATION: Institute of Wastewater Management and Water Protection, Hamburg University of Technology, 21073, Hamburg, Germany. m.hammer@tuhh.de

Country: England

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MEDLINETA: Water Sci Technol

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