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Ağır Metallerin Fungal Biyokütle İle Biyosorpsiyonu Üzerine Ön İşlemin Etkisi

EFFECT OF PRETREATMENT ON BIOSORPTION OF HEAVY METALS BY FUNGAL BIOMASS

Journal Name:

  • Trakya Üniversitesi Fen Bilimleri Dergisi

Publication Year:

  • 2004

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
One of the recent developments in biotechnology is the identification of a new type of adsorbents of biological origin which have high sequestering capacity for organic or inorganic pollutants. The effect of pre-treatment on the heavy metal biosorption capacity of Penicillium lanosa-coeruleum biomass was investigated as a new biosorbent. The biomass was subjected to heat and chemical treatments including sodium hydroxide, formaldehyde, gluteraldehyde, acetic acid, hydrogen peroxide, detergent and dimethyl sulfoxide to study their effects on biosorption of copper, lead and nickel. It was found that heat, sodium hydroxide and detergent pretreatments significantly improved biosorption of lead (27%) and copper (106%, 95%, 162%) whereas gluteraldehyde increased nickel biosorption (72%) in comparison with the living biomass. The fungal biomass of P. lanosa-coeruleum may be applied to develop an inexpensive, effective biosorbent for removing lead, copper and nickel from waste waters.
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Abstract (Original Language): 
Biyoteknolojide son gelişmelerden biri de organik ve inorganik kirleticileri yüksek oranda tutma kapasi-tesi olan biyolojik kökenli yeni adsorbentlerin belirlenmesi yönündedir. Yeni bir biyosorbent olarak Penicillium lanosa-coeruleum biyokütlesinin ağır metal biyosorpsiyon kapasitesi üzerine ön işlemlerin etkisi incelenmiştir. Bakır, kurşun ve nikel iyonlarının biyosorpsiyonu üzerine etkisini incelemek üzere, biyokütle ısı ve kimyasal iş-lemlere (sodium hidroksit, hidrojen peroksit, ticari çamaşır deterjanı ve dimetil sulfoksit) maruz bırakılmıştır. Canlı biyokütle ile kıyaslandığında, biyokütlenin ısı, sodyum hidroksit ve deterjanla ön işlemi kurşun (%27) ve bakır (%106, %95, %162) biyosorpsiyonunu önemli oranda artırırken, glutaraldehitle ön işlemi nikel (%72) biyosorpsiyonunu artırmıştır. P. lanosa-coeruleum biyokütlesi, atık sulardan kurşun, bakır ve nikel giderimi i-çin düşük maliyetli, etkili bir biyosorbent geliştirilmesinde kullanılabilir.
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REFERENCES

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