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Dergiler / Mühendislik Bilimleri ve Tasarım Dergisi / 2026 / Cilt: 7 Sayı: 2

SULARDAN ÇOKLU-ELEMENT GİDERİMİNDE FINDIK İŞLEME TESİSLERİ ATIKLARININ SORBENT OLARAK KULLANIMI

POTENTIAL USE OF HAZELNUT PROCESSING PLANT WASTES AS A SORBENT FOR THE SIMULTANEOUS REMOVAL OF MULTI-ELEMENTS FROM WATER

Özlem Tunç Dede(Giresun University)0000-0001-5534-4773
Sayfa
301–312
Yayın Tarihi
2019-06-26
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Ç o ğ u durumda adsorpsiyon denge verileri, Langmuir ve Langmuir-Freundlich modellerine uyum sağlamış ve istemli-adsorpsiyon davran ış lar ı g ö stermi ş tir.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Bu çalışmada; Al, Cr, Cu, Cd, Pb, As ve Fe'in sudan eş zamanlı olarak uzaklaştırılmasında fındık işleme tesisi atıklarından, fındık kabuğu (SH) ve fındık zarının (SK) potansiyel kullanımına, ortam p H’ı ( 1.5 - 8.0 ), başlangıç element derişimi ( 0.5-20 mg L −1 ) ve sorbent dozunun ( 1 - 20 g L -1 ) etkileri araştırılmıştır.
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Temel Bulgular & Veri:Sorbentlerin yüzey morfolojisi, elementel analizi, FTIR, SEM-EDS ve BET analizleri yapılmış ve özgül yüzey alanları 0.676 m 2 g -1 (SH için) ve 0.768 m 2 g -1 (SK için) olarak bulunmuştur.
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Sonuç & Katkı:Ç o ğ u durumda adsorpsiyon denge verileri, Langmuir ve Langmuir-Freundlich modellerine uyum sağlamış ve istemli-adsorpsiyon davran ış lar ı g ö stermi ş tir.
🔬Tür:Deneysel Tarla Denemesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Adsorpsiyon/biyosorpsiyon · Tarımsal atık · Doğal adsorbent

Özet

Bu çalışmada; Al, Cr, Cu, Cd, Pb, As ve Fe'in sudan eş zamanlı olarak uzaklaştırılmasında fındık işleme tesisi atıklarından, fındık kabuğu (SH) ve fındık zarının (SK) potansiyel kullanımına, ortam p H’ı ( 1.5 - 8.0 ), başlangıç element derişimi ( 0.5-20 mg L −1 ) ve sorbent dozunun ( 1 - 20 g L -1 ) etkileri araştırılmıştır. Sorbentlerin yüzey morfolojisi, elementel analizi, FTIR, SEM-EDS ve BET analizleri yapılmış ve özgül yüzey alanları 0.676 m 2 g -1 (SH için) ve 0.768 m 2 g -1 (SK için) olarak bulunmuştur. Sonuçlar, her iki sorbent yüzeyinin pürüzlü, ağır metalleri tutabileceği gözenekler ve karboksilik asit, fenol bileşikleri gibi fonksiyonel gruplar içerdiğini göstermiştir. Her iki sorbent sisteminde tüm elementler için optimum pH, 5.0 olarak belirlenirken, başlangıç metal derişiminin 8 mg L -1 ’e kadar artması ile birlikte element giderim yüzdesinin (SH için kadmiyum, SK için ise bakır ve kadmiyum hariç) arttığı bulunmuştur . Optimum sorbent dozu, SH için 10 g L -1 olarak bulunurken, SK için sorbent miktarının artması ile giderim yüzdesi azalmıştır. Adsorpsiyon dengesinin matematiksel modellemesi için adsorpsiyon modelleri kullanılmış ve izoterm sabitleri oda sıcaklığında (22 ± 2 ◦ C) hesaplanmıştır. Ç o ğ u durumda adsorpsiyon denge verileri, Langmuir ve Langmuir-Freundlich modellerine uyum sağlamış ve istemli-adsorpsiyon davran ış lar ı g ö stermi ş tir.

Abstract

In this paper, the effects of pH (1.5-8.0), initial element concentration ( 0.5 to 20 mg L −1 . ) and sorbent dosage ( 1 - 20 g L -1 ) were investigated on the potential use of hazelnut processing plant wastes, hazelnut shell (SH) and hazelnut skin (SK), for the simultaneous removal of Al, Cr, Cu, Cd, Pb, As and Fe from water. The surface morphology of the sorbents, elemental analysis, FTIR, SEM-EDS and BET analysis were performed and specific surface areas of the sorbents were found as 0.676 m 2 g -1 (for SH) and 0.768 m 2 g -1 (for SK). The results showed that surfaces of both sorbents are rough, contains pores that allow to entrap heavy metals and functional groups such as carboxylic acid, phenolic compounds, etc. to which the heavy metal ions can attach. While the optimum pH was determined as 5.0 for all elements in both sorbent systems, the percent removal of heavy metal increased with increase in initial heavy metal concentration up to 8 mg L -1 (except cadmium for SH and copper and cadmium for SK). While optimum sorbent dosage was obtained 10 g L -1 for SH sorbent, increase of sorbent amount led to a decrease of the percentage of removal for SK. Adsorption models were used for the mathematical description of adsorption equilibrium and isotherm constants were evaluated at room temperature (22 ± 2 ◦ C). The adsorption equilibrium data were fitted well to Langmuir and Langmuir-Freundlich models in most cases and showed favorable adsorption behavior

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Bu Makaleye Atıf Yap

Dede, Ö. T. (2019). SULARDAN ÇOKLU-ELEMENT GİDERİMİNDE FINDIK İŞLEME TESİSLERİ ATIKLARININ SORBENT OLARAK KULLANIMI. Mühendislik Bilimleri ve Tasarım Dergisi, Cilt: 7 Sayı: 2, 301–312. https://doi.org/10.21923/jesd.486065

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