Natural Dissolved Organic Matter Removal and Subsequent Disinfection By-Product Formation: A Comparison of Ion Exchange and Activated Carbon

2008 ◽  
pp. 242-256 ◽  
Author(s):  
Yongrui Tan ◽  
James E. Kilduff ◽  
Tanju Karanfil
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Ion Exchange ◽  
Dissolved Organic Matter ◽  
Product Formation ◽  
Organic Matter Removal

scholarly journals Evaluation of turbidity and dissolved organic matter removal through double filtration technology with activated carbon

DYNA ◽  
2018 ◽  
Vol 85 (205) ◽  
pp. 234-239
Author(s):  
Patricia Torres-Lozada ◽  
Claudia Patricia Amezquita-Marroquín ◽  
Karen Daniela Agudelo-Martínez ◽  
Natalia Ortiz-Benítez ◽  
David Santiago Martínez-Ducuara
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Dissolved Organic Matter ◽  
Organic Matter Removal ◽  
Double Filtration ◽  
Filtration Technology

La reducción de la calidad fisicoquímica y microbiológica de las fuentes superficiales de suministro para consumo humano, requiere utilizar tratamientos complementarios para garantizar el suministro de agua segura. En este estudio se evaluó la doble filtración con carbón activado granular (CAG: vegetal- cáscara de coco y mineral-bituminoso), para evaluar la reducción de turbiedad y materia orgánica disuelta (UV254). Se empleó agua filtrada de una Planta de Tratamiento Convencional–PTAP; la segunda filtración se realizó en columnas de laboratorio de flujo continuo a gravedad, con porcentajes CAG:arena 100:0, 80:20, 50:50, 30:70, 0:100. Mientras el filtro de arena fue más eficiente en remoción de turbiedad, las configuraciones con CAG lo fueron en la remoción de UV254, siendo más eficientes los filtros con mayor porcentaje de CAG. Los resultados demuestran que la doble filtración empleando CAG, puede ser una alternativa eficiente para la remoción de materia orgánica y la producción de un agua potable segura.

Evaluating fluorescence and ultraviolet photometry to assess dissolved organic matter removal during coagulation-flocculation

2011 ◽  
Vol 25 (4) ◽  
pp. 540-546 ◽  
Author(s):  
Gone Droh Lanciné ◽  
Kamagate Bamory ◽  
Ligban Raymond ◽  
Savane Issiaka ◽  
Biemi Jean
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Organic Matter Removal

Characterization and Source of Trihalomethane Formation in the Secondary Effluent by Sequencing Batch Reactors

2013 ◽  
Vol 316-317 ◽  
pp. 323-326
Author(s):  
Chao Jie Zhang ◽  
Si Bo Li ◽  
Qian Chen ◽  
Qi Zhou
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Dissolved Organic Matter ◽  
Secondary Effluent ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Human Beings ◽  
By Products

Dissolved organic matter (DOM) may do harms to human beings. After disinfected by chlorine (amine), DOM can form disinfection by-products (DBPs) which can be mutagenic, teratogenic and carcinogenic. Characterization and source of trihalomethane precursors in the secondary effluent by sequencing batch reactors were investigated. CHCl3 was the primary DBPs. The results showed that the precursors of CHCl3 were mainly strongly hydrophobic DOM, while CHCl2Br and CHClBr2 were mainly formed from hydrophilic DOM. The effects of different powder media (activated carbon, zeolite) on removal of DOM were compared. The results showed that the dosing of powder media can promote the removal of DOM and the DBPs precursors.

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