TARIMDA KULLANILAN ATRAZİNİN GİDERİMİNDE RHIZOPUS ARRHIZUS KULLANIM POTANSİYELİNİN BELİRLENMESİ

Year 2017, Volume: 42 Issue: 3, 261 - 267, 15.06.2017

Ülküye Dudu Gül, Hülya Silah

Abstract

Tarımsal üretiminde kullanılan Atrazinin toprakta oluşan
kalıntıları daha sonra yeraltı ve yerüstü sularına taşınmaktadır. Yüksek
miktarlarda biriken Atrazin canlı organizmalar için toksik etki
oluşturmaktadır. Atrazinle kirlenmiş sulu çevrelerin arıtımı önemli bir konu olmaktadır.
Biyobirikim ve biyosorpsiyon bu tür kirleticilerin çevreden gideriminde çevre
dostu bir yöntem olarak önerilmektedir. Bu çalışmanın amacı hem besiyerinde
gelişmekte olan hem de kurutulmuş fungal biyokütlenin Atrazin giderim
kapasitesini belirlemektir. Çalışmada Rhizopus
arrhizus kültürünün biyobirikim ve biyosorpsiyonla Atrazin giderimine pH
değerlerinin etkisi belirlenmiştir. Atrazin analizinde elektrokimyasal yöntem
kullanılmıştır. Biyobirikim ve biyosorpsiyon sonunda en iyi Atrazin giderimi sırasıyla pH 4 ve pH 6'da gerçekleşmiştir.
Gelişmekte olan R. arrhizus kültürü ve kurutulmuş fungal
biyokütle sırasıyla %57.45 ve %63.16 Atrazin giderimi gerçekleştirmiştir. Bu
çalışma sonuçlarına göre fungal biyokütle pestisitle kirlenmiş sıvı ortamlardan
Atrazin giderimini kısa bir zaman aralığında gerçekleştirebilmiştir. Denemeler tarımsal
üretiminde yaygın olarak kullanılan Atrazinin çevreye olumsuz etkilerini azaltmak
için alternatif olarak fungal biyokütlenin kullanılabileceğini göstermiştir.

Keywords

Atrazin, fungus, tarım

DETERMINATION THE POTENTIAL USAGE OF RHIZOPUS ARRHIZUS FOR REMOVAL OF ATRAZINE USED IN AGRICULTURE

Abstract

Atrazine is commonly used in agricultural
activities. Atrazine residues occur in soil and then move to underground and
surface waters. The higher amount of Atrazine is toxic for living organisms.
The treatment of Atrazine contaminated aquoeous environment is an important
issue. Bioaccumulation and biosorption is suggested as an eco-friendly way to
remove this kind of pollutans in the environment. The aim of this study is to
determine the Atrazine removal capacity of both growing Rhizopus arrhizus culture and dried fungal biomass.
The effect of different pH values on Atrazine bioaccumulation and biosorption
by R. arrhizus culture was determined
in this study. Electrochemical methods were used for Atrazine analyse. The
optimal pH for Atrazine removal was determined as 4 and 6 for bioaccumulation
and biosorption, respectively. The growing R. arrhizus culture and dried
R. arrhizus biomass removed 57.45%
and 63.16% of Atrazine, respectively. According to the results of this study the fungal strain was
effectively removed Atrazine from pesticide contaminated aquoeous solutions in
a short time period. This study showed that the fungal systems can be used as
alternative ways to reduce negative environmental impact of Atrazine.

Keywords

Atrazine, Fungus, tarım

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