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Influence of decreasing supplementation to transformation of chemical forms of Ni, Zn and Cu during composting of sewage sludge
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Title: Influence of decreasing supplementation to transformation of chemical forms of Ni, Zn and Cu during composting of sewage sludge

Creator:

Sidełko, Robert ; Janowska, Beata ; Leśniańska, Aleksandra ; Kraszewska, Katarzyna ; Grabowska, Karina

Date:

2021

Type:

artykuł w czasopiśmie

Description:

This paper pertains to the influence of decreasing supplementation to transformation of chemical forms of Ni. Zn and Cu during composting of sewage sludge. A universally used supplementing material constituting a rich source of organic carbon is straw. Addition of straw to sewage sludge is aimed at increasing C/N proportion up to at least 15 due to the risk of formation of toxic forms of nitrogen, concentration of which in sewage sludge is exceptionally high. We have presented in this paper the results of speciation research of three elements applying Tessier’s sequential extraction. It’s been proven that decreasing of straw share in the composted mixture with sewage sludge down to the level of C/N value below the admissible value, has a beneficial effect on the allocation of tested heavy metals towards the forms that are permanently bound in compost matrix. A systematic increase of organic (IV) and residual (V) fractions share and decrease of mobile forms of heavy metals content in bioavailable fractions i.e. ion-exchange (I) and carbonate (II) has been ascertained.

Place of publishing:

Koszalin

Publisher:

Politechnika Koszalińska

Format:

application/pdf

Identifier:

oai:dlibra.tu.koszalin.pl:1683

Language:

eng

Is part of:

Rocznik Ochrona Środowiska. Vol. 23, s. 580-593

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY-SA 4.0

Exlibris

Subject and keywords:

sewage sludge composting heavy metals speciation

Object collections:

Last modified:

Nov 6, 2023

In our library since:

Oct 17, 2022

Number of object content hits:

122

All available object's versions:

https://dlibra.tu.koszalin.pl/publication/1687

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Edition name Date
Sidełko, Robert, 2021, Influence of decreasing supplementation to transformation of chemical forms of Ni, Zn and Cu during composting of sewage sludge Nov 6, 2023

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