A FIXED BED SORPTION SYSTEM FOR DEFLUORIDATION OF GROUND WATER

Journal Of Urban And Environmental Engineering

Endereço:
UFPB/CT
João Pessoa / PB
Site: http://www.journal-uee.org
Telefone: (83)3216-7684
ISSN: 1982-3932
Editor Chefe: Celso Augusto Guimarães Santos
Início Publicação: 31/12/2006
Periodicidade: Semestral
Área de Estudo: Engenharia civil

A FIXED BED SORPTION SYSTEM FOR DEFLUORIDATION OF GROUND WATER

Ano: 2009 | Volume: 3 | Número: 1
Autores: Ayoob Sulaiman, Ashok K. Gupta, Abi B. Basheer
Autor Correspondente: Ayoob Sulaiman | ayoobtkm@gmail.com

Palavras-chave: adsorption, breakthrough curve, column study, fluoride, modeling

Resumos Cadastrados

Resumo Inglês:

The presence of excess fluoride in ground water has become a global threat with as many as 200 million people affected in more than 35 countries in all the continents. Of late, there have been significant advances in the knowledge base regarding the effects of excess fluoride on human health. As a result, defluoridation of ground water is regarded as one of the key areas of attention among the universal water community triggering global research. This study describes the sorptive responses of a newly developed adsorbent, alumina cement granules (ALC), in its real-life application in fixed beds, for removing fluoride from the ground waters of a rural Indian village. ALC exhibited almost consistent scavenging capacity at various bed depths in column studies with an enhanced adsorption potential of 0.818 mg/g at a flow rate of 4 ml/min. The Thomas model was examined to describe the sorption process. The process design parameters of the column were obtained by linear regression of the model. In all the conditions examined, the Thomas model could consistently predict its characteristic parameters and describe the breakthrough sorption profiles in the whole range of sorption process.