Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida
Vermicomposting of organic waste has an important part to play in an integrated waste management strategy. The aim of the present study was to investigate the ability of an epigeic earthworm Eisenia foetida to transform anaerobically digested sewage sludge (SS) amended with hazelnut husk (HH) and co...
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doaj-42e1285bdde04ea0a2270c088db4d04d2021-01-12T12:34:28ZengFederation of Eurasian Soil Science SocietiesEurasian Journal of Soil Science 2147-42492021-01-01101385010.18393/ejss.807762Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetidaRıdvan Kızılkaya0https://orcid.org/0000-0000-0000-0000Zhainagul Yertayeva1https://orcid.org/0000-0000-0000-0000Sagynbay Kaldybayev2https://orcid.org/0000-0000-0000-0000Bolat Murzabayev3https://orcid.org/0000-0000-0000-0000Aigul Zhapparova4https://orcid.org/0000-0000-0000-0000Zhanybek Nurseitov5https://orcid.org/0000-0000-0000-0000Ondokuz Mayıs University, Faculty ofAgriculture, Department of Soil Science and Plant Nutrition, Samsun, TurkeyKazakh National Agrarian University, Almaty, KazakhstanKazakh National Agrarian University, Almaty, KazakhstanM.Auezov South Kazakhstan State University, Shymkent, Kazakhstan Kazakh National Agrarian University, Almaty, Kazakhstan Kazakh National Agrarian University, Almaty, KazakhstanVermicomposting of organic waste has an important part to play in an integrated waste management strategy. The aim of the present study was to investigate the ability of an epigeic earthworm Eisenia foetida to transform anaerobically digested sewage sludge (SS) amended with hazelnut husk (HH) and cow manure (CM) in different proportions under laboratory condition (in darkness at 25°C0,5 0C). Two approaches investigated in the study were: (1) to find the best medium for growth and reproduction of E. foetida in different feed mixtures, (2) to analyze the heavy metal concentrations in different feed mixtures of SS-HH-CM before and after vermicomposting, and (3) to explore heavy metals accumulation of earthworms in sewage sludge with different feed mixtures. Number and biomass of earthworms and heavy metal contents in feed mixtures and earthworms were periodically monitored. The results indicated that maximum earthworm biomass was attained in feed mixture of 20% SS + 40% CM + 40% HH while the earthworm number was highest in feed mixture of 30% SS + 35% CM + 35% HH during the vermicomposting period. Heavy metals concentration (Zn, Cu, Cd, Pb, Ni and Cr) in all feed mixtures decreased associated with the increasing vermicomposting time. The heavy metals’ content in the feed mixtures was lower than that of initial mixtures. Metal analysis of earthworms revealed considerable bioaccumulation of heavy metals in their bodies’ tissue. Heavy metal analysis of earthworm body showed that increasing proportion of SS in the feed mixtures promoted the heavy metal content of earthworm body.http://ejss.fesss.org/10.18393/ejss.807762vermicomposteisenia feotidasewage sludgeheavy metalbioaccumulation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rıdvan Kızılkaya Zhainagul Yertayeva Sagynbay Kaldybayev Bolat Murzabayev Aigul Zhapparova Zhanybek Nurseitov |
spellingShingle |
Rıdvan Kızılkaya Zhainagul Yertayeva Sagynbay Kaldybayev Bolat Murzabayev Aigul Zhapparova Zhanybek Nurseitov Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida Eurasian Journal of Soil Science vermicompost eisenia feotida sewage sludge heavy metal bioaccumulation |
author_facet |
Rıdvan Kızılkaya Zhainagul Yertayeva Sagynbay Kaldybayev Bolat Murzabayev Aigul Zhapparova Zhanybek Nurseitov |
author_sort |
Rıdvan Kızılkaya |
title |
Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida |
title_short |
Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida |
title_full |
Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida |
title_fullStr |
Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida |
title_full_unstemmed |
Vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm Eisenia foetida |
title_sort |
vermicomposting of anaerobically digested sewage sludge with hazelnut husk and cow manure by earthworm eisenia foetida |
publisher |
Federation of Eurasian Soil Science Societies |
series |
Eurasian Journal of Soil Science |
issn |
2147-4249 |
publishDate |
2021-01-01 |
description |
Vermicomposting of organic waste has an important part to play in an integrated waste management strategy. The aim of the present study was to investigate the ability of an epigeic earthworm Eisenia foetida to transform anaerobically digested sewage sludge (SS) amended with hazelnut husk (HH) and cow manure (CM) in different proportions under laboratory condition (in darkness at 25°C0,5 0C). Two approaches investigated in the study were: (1) to find the best medium for growth and reproduction of E. foetida in different feed mixtures, (2) to analyze the heavy metal concentrations in different feed mixtures of SS-HH-CM before and after vermicomposting, and (3) to explore heavy metals accumulation of earthworms in sewage sludge with different feed mixtures. Number and biomass of earthworms and heavy metal contents in feed mixtures and earthworms were periodically monitored. The results indicated that maximum earthworm biomass was attained in feed mixture of 20% SS + 40% CM + 40% HH while the earthworm number was highest in feed mixture of 30% SS + 35% CM + 35% HH during the vermicomposting period. Heavy metals concentration (Zn, Cu, Cd, Pb, Ni and Cr) in all feed mixtures decreased associated with the increasing vermicomposting time. The heavy metals’ content in the feed mixtures was lower than that of initial mixtures. Metal analysis of earthworms revealed considerable bioaccumulation of heavy metals in their bodies’ tissue. Heavy metal analysis of earthworm body showed that increasing proportion of SS in the feed mixtures promoted the heavy metal content of earthworm body. |
topic |
vermicompost eisenia feotida sewage sludge heavy metal bioaccumulation |
url |
http://ejss.fesss.org/10.18393/ejss.807762 |
work_keys_str_mv |
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