Applicability of innovative adsorbents in geogenic arsenic removal

Çelebi, Hakan; Bilican, İsmail; Bahadır, Tolga

doi:10.1016/j.jclepro.2021.129475

Cited by 10 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The most common models used to describe adsorption equilibria are Langmuir and Freundlich. The coefficients, correlation factors (R 2 ), and equations of the obtained isotherm parameters are listed in Table 1 [13]. Additionally, the essential properties of a Langmuir isotherm can be expressed by the dimensionless constant separation factor R L .…”

Section: Isotherm and Kinetic Models Applied In Batch Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Focusing on Eco-Friendly Adsorption Method: Removal of Endocrine-Disrupting Cu2+ Ions by Iron Shavings

et al. 2023

View full text Add to dashboard Cite

show abstract

Section: Isotherm and Kinetic Models Applied In Batch Experimentsmentioning

confidence: 99%

“…In addition to adsorption, the adsorbent used should also be economical. Therefore, different alternatives have been evaluated [12,13]. Evaluation of some wastes originating from industrial sectors in this process is important in terms of both recovery and heavy metal removal.…”

Section: Introductionmentioning

confidence: 99%

Focusing on Eco-Friendly Adsorption Method: Removal of Endocrine-Disrupting Cu2+ Ions by Iron Shavings

et al. 2023

View full text Add to dashboard Cite

show abstract

“…1 gram kurutulmuş POFA %48,7 As(III) ve %50,2 As(V) arıtımı gerçekleştirmiş olup giderim yüzdeleri oldukça düşük kalmıştır. Celebi vd [39] arsenik gideriminde inovatif adsorbanların (RU, FeU ve FeU@200°C) adsorplama kapasitelerini araştırmışlardır. Adsorbanların maksimum adsorplama kapasitelerini sırasıyla 6,09 mg/g, 6,61 mg/g ve 6,46 mg/g olarak tespit etmişlerdir.…”

Section: Thomas Modeli (Thomas Model)unclassified

Isıl işlem ile modifiye edilmiş arıtma çamuru kullanılarak sabit yataklı kolonda arsenik ve antimon giderimi

KAVACIK

Dölgen

2022

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

View full text Add to dashboard Cite

Bu çalışmada, demir içeren içme suyu arıtma tesis çamurunun (DWTS) arsenik ve antimon giderim performansı araştırılmıştır. DWTS üç farklı sıcaklıkta (200, 400 ve 600ºC) termal arıtmaya tabi tutularak modifiye edilmiştir (DWTS-200). 200ºC, 1saat ısıl işlem uygulanmış malzeme ile maksimum arsenik giderimi elde edilmiştir. Malzemenin yüzey alanı ve gözenek hacmi BET metoduyla analiz edilmiş, faz kompozisyonu X-ışını difraksiyonu (XRD) ile belirlenmiştir. Yüzey morfolojileri ve element analizi taramalı elektron mikroskobu (SEM) ve X-ışını spektrometresi (EDS) ile gerçekleştirilmiştir. Sonuçlar DWTS-200 malzemesinin oldukça yüksek yüzey alanına sahip olduğunu (170 m2 g-1) ve amorf yapısının baskın olduğunu göstermiştir. Malzemenin ana fazları ağırlıklı olarak demir, kalsit, oksijen ve quartzdan oluşmuştur. 40 µg As L-1 ve 80 µg Sb L-1 konsantrasyonları için kırılma noktasına ulaşıncaya kadar arsenik için 6.000 L (133.000 yatak hacmi sayısı), antimon için 640 L (14.000 yatak hacmi sayısı) su arıtabildiği belirlenmiştir. Kolon tasarımı için gerekli kinetik parametreleri belirlemek ve kırılma eğrilerini tahmin etmek için Thomas ve Yoon-Nelson modelleri uygulanmıştır. Her iki model adsorpsiyon sürecinin dinamik davranışını açıklamak için uygun bulunmuştur. Thomas modeliyle arsenik için maksimum adsorpsiyon kapasitesi 6,53 mg g-1, antimon için 5,21 mg g-1 olarak elde edilmiştir. Ayrıca, DWTS-200 adsorban malzemeye rejenerasyon uygulanmış ve malzemenin rejenere edilerek kullanılabileceği görülmüştür.

show abstract

“…So far, different arsenic removal technologies have been developed, among which adsorption-based technologies are indeed widely adopted. − Thus, extensive research studies have been conducted to develop suitable adsorbent media to filter arsenic. Adsorbents such as amorphous aluminum oxide, activated alumina, hydrous iron oxide, aluminum oxide, titanium oxide, manganese oxide, and biochar have been well studied; − however, their low surface area and limited arsenic removal capacity limit their direct use without any modification.…”

Section: Introductionmentioning

confidence: 99%

A Simplified and Affordable Arsenic Filter to Prevent Arsenic Poisoning: Lab-Scale Study and Pilot Experiment

Panda,

Jha,

Kumar

et al. 2023

ACS EST Water

View full text Add to dashboard Cite

Access to clean and potable water is an inextricable fundamental human right. However, the contamination of groundwater with toxic arsenic has emerged as one of the global issues that is preventing millions of people from accessing their fundamental rights and healthy livelihood. Over the years, progressive effort has been made to eradicate this problem, but there are significant challenges that still remain to be addressed. Keeping the research gaps in mind, our team has developed a simplified and affordable arsenic filter (SAAF) to prevent arsenic poisoning, which has been successfully implemented in the field in the last two years (Jharkhand, India). The filtering media used in the system consist of globally available and naturally occurring iron ore fines and manganese ore as arsenic removal agents along with silverimpregnated charcoal. The developed purifier SAAF is a household gravity-based water filter that can deliver potable water at a flow rate of 10−12 L/h from highly arseniccontaminated (1−1.5 mg L −1 ) and iron-contaminated (8−10 mg L −1 ) groundwater. The low cost, simplified design, adoptable setup, promising arsenic and iron removal performance, and extended lifespan (4−5 years) of the filter demonstrate its commercial possibility and implementation potential as a front-line arsenic removal technology.

show abstract

Applicability of innovative adsorbents in geogenic arsenic removal

Cited by 10 publications

References 50 publications

Focusing on Eco-Friendly Adsorption Method: Removal of Endocrine-Disrupting Cu2+ Ions by Iron Shavings

Focusing on Eco-Friendly Adsorption Method: Removal of Endocrine-Disrupting Cu2+ Ions by Iron Shavings

Isıl işlem ile modifiye edilmiş arıtma çamuru kullanılarak sabit yataklı kolonda arsenik ve antimon giderimi

A Simplified and Affordable Arsenic Filter to Prevent Arsenic Poisoning: Lab-Scale Study and Pilot Experiment

Contact Info

Product

Resources

About