Direct potable reuse: NDMA control strategies

R. Aflaki, J. Munoz, M. Ruiz, D. Galbreath, W. Mitch, S. Hammond, Y. Chuang, J. Barnard, S. Sathyamoorthy, M. Agbodo, Shane A Snyder, F. Shabani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

N-nitrosodimethylamine (NDMA), a nitrosamine, is a toxic carcinogen and is considered a key contaminant of emerging concern (CEC) for direct potable reuse (DPR). It has been reported in foods, beverages, drugs, and tobacco smoke and to be an air and water contaminant. NDMA is also used as an industrial solvent, an anti-oxidant, a rubber accelerator, and in the preparation of polymers, where it may be used as an initiator or a plasticizer, in the production of rocket fuel, as a biocide for nematodes, and an intermediate for 1,1-dimethylhydrazine to inhibit nitrification of soils, therefore it is present in raw wastewater and may be formed during disinfection at water treatment plants. Given the NDMA detections associated with drinking water and recycled water sources and treatment, NDMA is a good candidate for future regulation (i.e., establishment of a drinking water standard, also known as a maximum contaminant level or MCL). An MCL for NDMA will likely not be available for several years, so the 10-ng/L notification level established by the California State Water Resources Control Board Division of Drinking Water (DDW) will continue to be used to provide information to local governing agencies and consumers. The City of Los Angeles, Bureau of Sanitation (LASAN) is implementing the Donald C Tillman Water Reclamation Plant (DCTWRP) Groundwater Replenishment (GWR) Advanced Water Purification Facility Pilot Project to evaluate and compare performance of the full advanced treatment (FAT) train and alternative DPR treatment trains. In parallel, the WRRF Tailored Collaboration project [NDMA Precursor Control Strategies for Direct Potable Reuse (WRRF-15-13)] will characterize NDMA precursor sources, optimize NDMA and NDMA precursor removal in the DCTWRP Modified Ludzack-Ettinger (MLE) Activated Sludge Process, across FAT and alternative DPR treatment trains and evaluate NDMA formation post-advanced treatment. The paper will present fact sheets on a wide range of individual water quality characteristics, arranged by treatment process category tested at full scale and through candidate FAT and DPR pilot trains being tested and the application of a considered NDMA/Nitrosamine Precursors Control Strategies approach.

Original languageEnglish (US)
Title of host publicationWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017
PublisherWater Environment Federation
Pages1711-1724
Number of pages14
Volume3
ISBN (Print)9781510863682
StatePublished - Jan 1 2017
Externally publishedYes
EventWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 - Chicago, United States
Duration: Sep 30 2017Oct 4 2017

Other

OtherWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017
CountryUnited States
CityChicago
Period9/30/1710/4/17

Fingerprint

Dimethylnitrosamine
Nitrosamines
Potable water
Wastewater reclamation
train
Impurities
drinking water
Replenishment (water resources)
pollutant
Water
Activated sludge process
Sanitation
Biocides
Carcinogens
Water treatment plants
Beverages
Nitrification
Tobacco
Disinfection
Plasticizers

Keywords

  • Advanced treatment processes
  • NDMA/Nitrosamines
  • Optimization of BNR
  • Potable Reuse

ASJC Scopus subject areas

  • Pollution
  • Ecological Modeling
  • Environmental Chemistry
  • Waste Management and Disposal
  • Water Science and Technology

Cite this

Aflaki, R., Munoz, J., Ruiz, M., Galbreath, D., Mitch, W., Hammond, S., ... Shabani, F. (2017). Direct potable reuse: NDMA control strategies. In Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 (Vol. 3, pp. 1711-1724). Water Environment Federation.

Direct potable reuse : NDMA control strategies. / Aflaki, R.; Munoz, J.; Ruiz, M.; Galbreath, D.; Mitch, W.; Hammond, S.; Chuang, Y.; Barnard, J.; Sathyamoorthy, S.; Agbodo, M.; Snyder, Shane A; Shabani, F.

Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017. Vol. 3 Water Environment Federation, 2017. p. 1711-1724.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aflaki, R, Munoz, J, Ruiz, M, Galbreath, D, Mitch, W, Hammond, S, Chuang, Y, Barnard, J, Sathyamoorthy, S, Agbodo, M, Snyder, SA & Shabani, F 2017, Direct potable reuse: NDMA control strategies. in Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017. vol. 3, Water Environment Federation, pp. 1711-1724, Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017, Chicago, United States, 9/30/17.
Aflaki R, Munoz J, Ruiz M, Galbreath D, Mitch W, Hammond S et al. Direct potable reuse: NDMA control strategies. In Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017. Vol. 3. Water Environment Federation. 2017. p. 1711-1724
Aflaki, R. ; Munoz, J. ; Ruiz, M. ; Galbreath, D. ; Mitch, W. ; Hammond, S. ; Chuang, Y. ; Barnard, J. ; Sathyamoorthy, S. ; Agbodo, M. ; Snyder, Shane A ; Shabani, F. / Direct potable reuse : NDMA control strategies. Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017. Vol. 3 Water Environment Federation, 2017. pp. 1711-1724
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