scholarly journals Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis

2018 ◽  
Vol 4 (12) ◽  
pp. 2021-2028 ◽  
Author(s):  
Takahiro Fujioka ◽  
Hitoshi Kodamatani ◽  
Haruka Takeuchi ◽  
Hiroaki Tanaka ◽  
Long D. Nghiem
Keyword(s):  
Reverse Osmosis ◽  
Organic Compounds ◽  
Online Monitoring ◽  
Organic Chemicals ◽  
Trace Organic Compounds ◽  
Trace Organic Chemicals ◽  
Trace Organic

Online monitoring of N-nitrosodimethylamine (NDMA) during reverse osmosis (RO) treatment was effective in ensuring the removal of trace organic chemicals, particularly 1,4-dioxane.

scholarly journals Rejection of trace organic chemicals by a hollow fibre cellulose triacetate reverse osmosis membrane

Desalination ◽  
2015 ◽  
Vol 368 ◽  
pp. 69-75 ◽  
Author(s):  
Takahiro Fujioka ◽  
Stuart J. Khan ◽  
James A. McDonald ◽  
Long D. Nghiem
Keyword(s):  
Reverse Osmosis ◽  
Cellulose Triacetate ◽  
Hollow Fibre ◽  
Organic Chemicals ◽  
Reverse Osmosis Membrane ◽  
Trace Organic Chemicals ◽  
Trace Organic

Biofouling control by UV/H2O2 pretreatment for brackish water reverse osmosis process

2018 ◽  
Vol 4 (9) ◽  
pp. 1331-1344 ◽  
Author(s):  
Anat Lakretz ◽  
Hadas Mamane ◽  
Eli Asa ◽  
Tali Harif ◽  
Moshe Herzberg
Keyword(s):  
Reverse Osmosis ◽  
Organic Compounds ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Trace Organic Compounds ◽  
Biofouling Control ◽  
Pre Treatment ◽  
Treatment Step ◽  
Trace Organic ◽  
H2o2 Pretreatment

UV applied with H2O2 is a well-known advanced oxidation process (AOP) for degradation of trace organic compounds. In this study, the UV/H2O2 process was applied as a pre-treatment step to control reverse osmosis biofouling.

scholarly journals Validating the rejection of trace organic chemicals by reverse osmosis membranes using a pilot-scale system

Desalination ◽  
2015 ◽  
Vol 358 ◽  
pp. 18-26 ◽  
Author(s):  
Takahiro Fujioka ◽  
Stuart J. Khan ◽  
James A. McDonald ◽  
Long D. Nghiem
Keyword(s):  
Reverse Osmosis ◽  
Pilot Scale ◽  
Organic Chemicals ◽  
Trace Organic Chemicals ◽  
Trace Organic ◽  
Reverse Osmosis Membranes

Rejection of trace organic compounds by high-pressure membranes

2005 ◽  
Vol 51 (6-7) ◽  
pp. 335-344 ◽  
Author(s):  
T.-U. Kim ◽  
G. Amy ◽  
J.E. Drewes
Keyword(s):  
High Pressure ◽  
Reverse Osmosis ◽  
Organic Compounds ◽  
Pure Water ◽  
Endocrine Disrupting Compounds ◽  
Membrane Properties ◽  
Membrane Interactions ◽  
Trace Organic Compounds ◽  
Operational Conditions ◽  
Trace Organic

High-pressure membranes, encompassing reverse osmosis (RO), nanofiltration (NF), and low-pressure RO, may provide an effective treatment barrier for trace organic compounds including disinfection by-products (DBPs), pesticides, solvents, endocrine disrupting compounds (EDCs) and pharmaceutically active compounds (PhACs). The objective is to develop a mechanistic understanding of the rejection of trace organic compounds by high-pressure membranes, based on an integrated framework of compound properties, membrane properties, and operational conditions. Eight trace organic compounds, four DBPs and four chlorinated (halogenated) solvents, are being emphasized during an initial study, based on considerations of compound properties, occurrence, and health effects (regulations). Four polyamide FilmTec membranes; three reverse osmosis/RO (BW-400, LE-440, XLE-440) and one nanofiltration/NF (NF-90); are being characterized according to pure water permeability (PWP), molecular weight cutoff (MWCO), hydrophobicity (contact angle), and surface charge (zeta potential). It is noteworthy that rejections of compounds of intermediate hydrophobicity by the candidate membranes were observed to be less than salt rejections reported for these membranes, suggesting that transport of these solutes through these membranes is facilitated by solute-membrane interactions. We are continuing with diffusion cell measurements to describe solute-membrane interactions by estimation of diffusion coefficients through membranes pores, either hindered or facilitated.

Engineering and Design: Trace Organic Compounds in Potable Water Supplies

1986 ◽  
Author(s):  
CORPS OF ENGINEERS WASHINGTON DC
Keyword(s):  
Organic Compounds ◽  
Potable Water ◽  
Trace Organic Compounds ◽  
Water Supplies ◽  
Trace Organic

Biosolids as a Resource: Using Biochar Derived from Pyrolyzed Biosolids to Remove Trace Organic Compounds

2016 ◽  
Vol 2016 (3) ◽  
pp. 394-397
Author(s):  
Yiran Tong ◽  
Brooke K Mayer ◽  
Patrick J McNamara
Keyword(s):  
Organic Compounds ◽  
Trace Organic Compounds ◽  
Trace Organic

Removal of bulk dissolved organic carbon (DOC) and trace organic compounds by bank filtration and artificial recharge

2005 ◽  
Vol 39 (14) ◽  
pp. 3219-3228 ◽  
Author(s):  
Steffen Grünheid ◽  
Gary Amy ◽  
Martin Jekel
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Organic Compounds ◽  
Artificial Recharge ◽  
Bank Filtration ◽  
Trace Organic Compounds ◽  
Trace Organic

Transformation of trace organic compounds in drinking water by enzymic oxidative coupling

1986 ◽  
Vol 20 (3) ◽  
pp. 249-253 ◽  
Author(s):  
Stephen W. Maloney ◽  
Jacques. Manem ◽  
Joel. Mallevialle ◽  
Francois. Fiessinge
Keyword(s):  
Drinking Water ◽  
Organic Compounds ◽  
Oxidative Coupling ◽  
Trace Organic Compounds ◽  
Trace Organic
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