Removal of heavy metals from Industrial brownfields by Hydrolysate from waste chicken feathers in intention of circular Bioeconomy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00586523" target="_blank" >RIV/67985858:_____/24:00586523 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2666765724000395?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2666765724000395?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envadv.2024.100521" target="_blank" >10.1016/j.envadv.2024.100521</a>

Result language

angličtina

Original language name

Removal of heavy metals from Industrial brownfields by Hydrolysate from waste chicken feathers in intention of circular Bioeconomy

Original language description

Contamination of soils with heavy metals is a problem which has a significant negative impact not only on the environment but also on the presence and quantity of soil bacteria, the basis of healthy soil. Currently, new types of biodegradable chelating agents which could effectively wash heavy metals from soils and would replace the used EDTA-based agents are being sought and tested. However, it would be advantageous to use waste materials in accordance with the circular bioeconomy. Therefore, the hydrolysate prepared by the thermal pressure hydrolysis of waste chicken feather initiated by malic acid containing amino acids was tested as a new ecological and cheap chelating agent for the removal of heavy metals from industrial soil. The efficiency of the heavy metal extraction during twenty-four hours was at least the same and usually higher than the EDTA-based agents, especially for Cr, Ni and mainly for As, which could not be washed out by EDTA even with extended contact times of several days. Simultaneously, it was found that the hydrolysate revealed a significant biostimulating effect on soil bacteria, whose amount increased by several orders within five days. Simultaneously, the increased number of bacteria produced biosurfactants which significantly participated in the washing out of heavy metals, thereby increasing the efficiency of the hydrolysate.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Advances

ISSN

2666-7657

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

July 2024

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

100521

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85188963916