Efficiency of the activated carbon filtration in the natural organic matter removal

2006 ◽  
Vol 32 (3) ◽  
pp. 324-331 ◽  
Author(s):  
Anu Matilainen ◽  
Niina Vieno ◽  
Tuula Tuhkanen
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Organic Matter Removal ◽  
Carbon Filtration

The Role of Ozonation and Activated Carbon Filtration in the Natural Organic Matter Removal from Drinking Water

2006 ◽  
Vol 27 (10) ◽  
pp. 1171-1180 ◽  
Author(s):  
A. Matilainen ◽  
P. Iivari ◽  
J. Sallanko ◽  
E. Heiska ◽  
T. Tuhkanen
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Organic Matter Removal ◽  
Carbon Filtration

scholarly journals Combination of Coagulation, Adsorption, and Ultrafiltration Processes for Organic Matter Removal from Peat Water

2021 ◽  
Vol 14 (1) ◽  
pp. 370
Author(s):  
Muthia Elma ◽  
Amalia Enggar Pratiwi ◽  
Aulia Rahma ◽  
Erdina Lulu Atika Rampun ◽  
Mahmud Mahmud ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Membrane Fouling ◽  
Aluminum Sulfate ◽  
Adsorption Process ◽  
Powdered Activated Carbon ◽  
Organic Matter Removal ◽  
Water Borne

The high content of natural organic matter (NOM) is one of the challenging characteristics of peat water. It is also highly contaminated and contributes to some water-borne diseases. Before being used for potable purposes, peat water must undergo a series of treatments, particularly for NOM removal. This study investigated the effect of coagulation using aluminum sulfate coagulant and adsorption using powdered activated carbon (PAC) as a pretreatment of ultrafiltration (UF) for removal of NOM from actual peat water. After preparation and characterization of polysulfone (Psf)-based membrane, the system’s performance was evaluated using actual peat water, particularly on NOM removal and the UF performances. The coagulation and adsorption tests were done under variable dosings. Results show that pretreatment through coagulation–adsorption successfully removed most of the NOM. As such, the UF fouling propensity of the pretreated peat water was substantially lowered. The optimum aluminum sulfate dosing of 175 mg/L as the first pretreatment stage removed up to 75–78% NOM. Further treatment using the PAC-based adsorption process further increased 92–96% NOM removals at an optimum PAC dosing of 120 mg/L. The final UF-PSf treatment reached NOM removals of 95% with high filtration fluxes of up to 92.4 L/(m2.h). The combination of three treatment stages showed enhanced UF performance thanks to partial pre-removal of NOM that otherwise might cause severe membrane fouling.

Influence of natural organic matter (NOM) fouling on the removal of pharmaceuticals by nanofiltration and activated carbon filtration

2007 ◽  
Vol 7 (4) ◽  
pp. 17-23 ◽  
Author(s):  
S.G.J. Heijman ◽  
A.R.D. Verliefde ◽  
E.R. Cornelissen ◽  
G. Amy ◽  
J.C. van Dijk
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Granular Activated Carbon ◽  
Diverse Group ◽  
Sequential Combination ◽  
Carbon Filtration ◽  
Positively Charged ◽  
Micro Pollutants

The influence of natural organic matter (NOM) fouling on the rejection of micro pollutants in nanofiltration (NF) and the adsorption during granular activated carbon (GAC) filtration is investigated for a diverse group of pharmaceuticals. These pharmaceuticals were first spiked in feed waters filtered through a virgin NF-membrane and a corresponding NOM fouled membrane. The differences in rejection were never larger than 5%. The rejection of the negatively charged molecules on the fouled membrane slightly decreased and the rejection of the positively charged molecules slightly increased. These trends can be explained by a decrease of the repulsion of negative compounds and a decrease of the attraction of positive compounds by the fouled membrane. The sequential combination of NF and GAC was very effective in removing all types of pharmaceuticals. Compounds not well rejected by nanofiltration were more readily adsorbed by the GAC.

The use of Biological Activated Carbon Filtration for the Removal of Natural Organic Matter and Organic Micropollutants from Water

1999 ◽  
Vol 40 (9) ◽  
pp. 257-264 ◽  
Author(s):  
J. P. van der Hoek ◽  
J. A. M. H. Hofman ◽  
A. Graveland
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Organic Carbon Content ◽  
Organic Micropollutants ◽  
Biological Activated Carbon ◽  
Environmental Burden ◽  
Removal Capacity ◽  
Future Extension ◽  
Carbon Filtration

Amsterdam Water Supply (AWS) uses Biological Activated Carbon Filtration (BACF) for the removal of natural organic matter in general and the removal of organic micropollutants in particular. In order to minimize costs and environmental burden, it is important to know whether successive reactivations of carbon reduces its effectivity, and whether pesticides are effectively removed after prolonged running times of the carbon filters. The first aspect avoids the necessity of carbon replacement (i.e. costs), while the second aspect reduces the reactivation frequency (i.e. environmental burden). In a future extension scheme, AWS considers the use of an Integrated Mebrane System (IMS), and it is important to know whether the application of BACF is beneficial in the IMS. Six years of operation of BACF in the River-Lake Waterworks (31 million m3/year) have shown that successive reactivations do not affect the DOC removal capacity of the carbon. Three years of operation of BACF in the River-Dune Waterworks (70 million m3/year) have shown that the carbon retains its pesticide removal capacity. The use of BACF in an IMS shows important perspectives in minimizing the fouling of reverse osmosis membranes and in minimizing the organic carbon content in the membrane concentrate.

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