The Role of Natural Organic Matter in the Biodecontamination of Freshwaters from the Endocrine Disruptor Bisphenol A

The biggest impediment for applying membrane processes is fouling that comes from mass flux (such as particle and organic matter) to the membrane surface and its pores. Numerous research articles have indicated that either particles or natural organic matter (NOM) has been the most detrimental foulant. Therefore, the role of particles in membrane fouling was investigated with two synthetic waters (having either particles alone or particles with simple organic matter) and a natural water. Membrane fouling was evaluated with flux decline behavior and direct images from scanning electron microscopy. The results showed that the combined fouling by kaolin and dextran (a simple organic compound selected as a surrogate for NOM) showed no difference from the fouling with only the organic matter. The similarity might stem from the fact that dextran (i.e., polysaccharide) has no ability to be adsorbed on the clay material, so that the polysaccharide behaves the same with respect to the membrane with or without clay material being present. In contrast to kaolin, the natural particles showed a dramatic effect on membrane fouling.

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Role of Divalent Cations on Deposition ofCryptosporidium parvumOocysts on Natural Organic Matter Surfaces

Environmental Science & Technology ◽

10.1021/es9038566 ◽

2010 ◽

Vol 44 (12) ◽

pp. 4519-4524 ◽

Cited By ~ 27

Author(s):

Dao Janjaroen ◽

Yuanyuan Liu ◽

Mark S. Kuhlenschmidt ◽

Theresa B. Kuhlenschmidt ◽

Thanh H. Nguyen

Keyword(s):

Organic Matter ◽

Natural Organic Matter ◽

Divalent Cations

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Role of natural organic matter (NOM), colloidal particles, and solution chemistry on ultrafiltration performance

Separation and Purification Technology ◽

10.1016/j.seppur.2011.02.001 ◽

2011 ◽

Vol 78 (2) ◽

pp. 189-200 ◽

Cited By ~ 54

Author(s):

A.W. Zularisam ◽

Anwar Ahmad ◽

Mimi Sakinah ◽

A.F. Ismail ◽

T. Matsuura

Keyword(s):

Organic Matter ◽

Natural Organic Matter ◽

Colloidal Particles ◽

Solution Chemistry

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Role of tertiary amines in enhancing trihalomethane and haloacetic acid formation during chlorination of aromatic compounds and a natural organic matter extract

Environmental Science Water Research & Technology ◽

10.1039/c7ew00439g ◽

2018 ◽

Vol 4 (5) ◽

pp. 663-679 ◽

Cited By ~ 4

Author(s):

Kun Huang ◽

Amisha D. Shah

Keyword(s):

Organic Matter ◽

Organic Compound ◽

Natural Organic Matter ◽

Aromatic Compounds ◽

Acid Formation ◽

Tertiary Amines ◽

Haloacetic Acid ◽

Anthropogenic Inputs

Tertiary amines are prevalent in waters due to anthropogenic inputs and are known to enhance organic compound degradation while increasing disinfection by-product (DBP) formation, via the strong chlorinating agent, R3N–Cl+.

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