REMOVAL OF CHROMIUM (VI) ION FROM LEATHER WASTEWATERS BY ADSORPTION

Year 2014, , 11 - 24, 06.01.2015

Murat Canlı , Yüksel Abalı , Banu Öztekin Kamil Şirin

https://doi.org/10.18466/cbufbe.36355

Cited By: 2

Abstract

Alternative wastewater treatment methods are developed in recent years. One elimination method of heavy metals from the waste water is the adsorption of heavy metals. Cr (VI) is a heavy metal which is cause of water pollution and toxic effect on the living structures. In this study, the adsorption of Cr (VI) and removal of other polluted parameters was researched using natural adsorbents as clinoptilolite, activated clinoptilolite with acid. The study consists of two experimental parts. In the first part, principal factors affecting the adsorption were investigated. Suitable mix rate, pH, particular size of adsorbent, concentration, amount of adsorbent, temperature were invented and the optimum conditions were determined for chromium (VI) solutions. In the second part, adsorption tests were done with waste water under pre-determined optimum conditions for the adsorbents. Experimental studies were taken place on removal of COD (Chemical Oxygen Demand), SS (Suspend Solid), BOD (Biological Oxygen Demand) and chromium (VI) from composite sample of the tannery waste water. The outputs of adsorption using clinoptilolite and activated clinoptilolite for COD, SS, BOİ and chromium(VI) respectively about %50, %55, %33, %80 was obtained

Keywords

Clinoptilolite, chromium(VI), Leather industry wastewater, adsorption

DERİ SANAYİ ATIK SULARINDAN KROM (VI) İYONUNUN ADSORBSİYONU - REMOVAL OF CHROMIUM (VI) ION FROM LEATHER WASTEWATERS BY ADSORPTION

Abstract

DERİ SANAYİ ATIK SULARINDAN KROM (VI) İYONUNUN ADSORBSİYONU

Son yıllarda atık suların arıtılmasında alternatif arıtım yöntemleri geliştirilmektedir. Atık sulardaki ağır metalleri gidermek için kullanılan yöntemlerden birisi de ağır metallerin adsorpsiyonudur. Bir ağır metal olan Cr(VI), su kirliliğine ve canlı bünyesinde toksik etkiye neden olur. Bu çalışmada klinoptilolit, asit ile aktive edilmiş klinoptilolit gibi doğal adsorbanlar kullanılarak Cr(VI) iyonunun adsorpsiyonu ve deri atık suyundaki diğer kirletici parametrelerin giderimi araştırılmıştır.Bu çalışmada, adsorpsiyona etki eden temel faktörler incelendikten sonra çalışma parametreleri olarak uygun karıştırma hızı, pH, adsorbanın uygun tanecik boyutu, uygun konsantrasyon, adsorban miktarı ve sıcaklık bulunmuştur. Krom (VI) çözeltileri için optimum şartlar belirlenmiştir. Daha sonra, kullanılan adsorban maddeler için önceden belirlenmiş optimum koşullarda atık su ile adsorpsiyon deneyleri yapılmıştır. Deneysel çalışmalarda bir deri endüstrisi atık sularından kompozit olarak alınan numunede, KOİ (Kimyasal Oksijen İhtiyacı), AKM (Askıda Katı Madde), BOİ (Biyolojik Oksijen İhtiyacı) ve Krom (VI) parametrelerinin giderimi üzerine çalışılmıştır. Klinoptilolit ve aktif klinoptilolit kullanımıyla sırasıyla KOİ, AKM, BOİ ve krom(VI) değerleri için; %50, %55, %33 ve % 80 civarında adsorpsiyon verimleri elde edilmiştir.

 

REMOVAL OF CHROMIUM (VI) ION FROM LEATHER WASTEWATERS BY ADSORPTION

Alternative wastewater treatment methods are developed in recent years. One elimination method of heavy metals from the waste water is the adsorption of heavy metals. Cr (VI) is a heavy metal which is cause of water pollution and toxic effect on the living structures. In this study, the adsorption of Cr (VI) and removal of other polluted parameters was researched using natural adsorbents as clinoptilolite, activated clinoptilolite with acid. The study consists of two experimental parts. In the first part, principal factors affecting the adsorption were investigated. Suitable mix rate, pH, particular size of adsorbent, concentration, amount of adsorbent, temperature were invented and the optimum conditions were determined for chromium (VI) solutions. In the second part, adsorption tests were done with waste water under pre-determined optimum conditions for the adsorbents. Experimental studies were taken place on removal of COD (Chemical Oxygen Demand), SS (Suspend Solid), BOD (Biological Oxygen Demand) and chromium (VI) from composite sample of the tannery waste water. The outputs of adsorption using clinoptilolite and activated clinoptilolite for COD, SS, BOİ and chromium(VI) respectively about %50, %55, %33, %80 was obtained.

 

 

 

Keywords

Klinoptilolit, krom(VI), deri atık suyu, adsorpsiyon

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• Kabul Tarihi:05.03.2014