Yangali-Quintanilla, Victor Maeng, Sung Kyu Fujioka, Takahiro Kennedy, Maria Amy, Gary 2024-01-20T18:31:06Z 2024-01-20T18:31:06Z 2021-09-05 2010-10-15 0376-7388 https://pubs.kist.re.kr/handle/201004/131001 For water reuse applications, "tight" nanofiltration (NF) membranes (of polyamide) as an alternative to reverse osmosis (RO) can be an effective barrier against pharmaceuticals, pesticides, endocrine disruptors and other organic contaminants The use of RO in existing water reuse facilities is addressed and questioned, taking into consideration that tight NF can be a more cost-effective and efficient technology to target the problem of organic contaminants. It was concluded that tight NF is an acceptable barrier for organic contaminants because its removal performance approaches that of RO, and because of reduced operation and maintenance (O&M)costs in long-term project implementation Average removal of neutral compounds (including 1,4-dioxane) was about 82% and 85% for NF and RO, respectively, and average removal of ionic compounds was about 97% and 99% for NF and RO, respectively. In addition, "loose" NF after aquifer recharge and recovery (ARR) can be an effective barrier against micropollutants with removals over 90% When there is the presence of difficult to remove organic contaminants such as NDMA and 1,4-dioxane: for 1,4-dioxane, source control or implementation of treatment processes in wastewater treatment plants will be an option, for NDMA, a good strategy is to limit its formation during wastewater treatment, but there is evidence that biodegradation of NDMA can be achieved during ARR. (C) 2010 Elsevier B V All rights reserved English ELSEVIER N-NITROSODIMETHYLAMINE NDMA REVERSE-OSMOSIS WASTE-WATER CONCENTRATION POLARIZATION PHARMACEUTICAL RESIDUES AQUEOUS-SOLUTIONS ACTIVE COMPOUNDS MOLECULAR-SIZE REMOVAL 1,4-DIOXANE Proposing nanofiltration as acceptable barrier for organic contaminants in water reuse Article 10.1016/j.memsci.2010.06.058 1 JOURNAL OF MEMBRANE SCIENCE, v.362, no.1-2, pp.334 - 345 JOURNAL OF MEMBRANE SCIENCE 362 1-2 334 345 scie scopus 000281571100038 2-s2.0-77955661907 Engineering, Chemical Polymer Science Engineering Polymer Science Article N-NITROSODIMETHYLAMINE NDMA REVERSE-OSMOSIS WASTE-WATER CONCENTRATION POLARIZATION PHARMACEUTICAL RESIDUES AQUEOUS-SOLUTIONS ACTIVE COMPOUNDS MOLECULAR-SIZE REMOVAL 1,4-DIOXANE Nanofiltration Reverse osmosis Emerging organic contaminants Water reuse