Emerging investigators series: prediction of trace organic contaminant abatement with UV/H2O2: development and validation of semi-empirical models for municipal wastewater effluents

2016 ◽  
Vol 2 (3) ◽  
pp. 460-473 ◽  
Author(s):  
Daniel Gerrity ◽  
Yunho Lee ◽  
Sujanie Gamage ◽  
Minju Lee ◽  
Aleksey N. Pisarenko ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Empirical Models ◽  
Organic Contaminant ◽  
Potable Reuse ◽  
Development And Validation ◽  
Semi Empirical ◽  
Trace Organic ◽  
Wastewater Effluents

Recent evaluations of potable reuse treatment trains suggest that the use of UV and UV/H2O2may become increasingly common, particularly in systems employing ozone and/or biofiltration.

scholarly journals Unit Process Wetlands for Removal of Trace Organic Contaminants and Pathogens from Municipal Wastewater Effluents

2013 ◽  
Vol 30 (8) ◽  
pp. 421-436 ◽  
Author(s):  
Justin T. Jasper ◽  
Mi T. Nguyen ◽  
Zackary L. Jones ◽  
Niveen S. Ismail ◽  
David L. Sedlak ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Municipal Wastewater ◽  
Trace Organic Contaminants ◽  
Unit Process ◽  
Trace Organic ◽  
Wastewater Effluents

scholarly journals Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

2015 ◽  
Vol 1 (5) ◽  
pp. 699-708 ◽  
Author(s):  
Minkyu Park ◽  
Tarun Anumol ◽  
Shane A. Snyder
Keyword(s):  
Climate Change ◽  
Organic Compounds ◽  
Global Climate Change ◽  
Water Scarcity ◽  
Municipal Wastewater ◽  
Global Climate ◽  
Trace Organic Compounds ◽  
Ozone Oxidation ◽  
Potable Reuse ◽  
Trace Organic

Realized and potential threats of water scarcity due in part to global climate change have increased the interest in potable reuse of municipal wastewater.

Cumulative Effects of Multiple Contaminants on Caged Fish

2006 ◽  
Vol 41 (3) ◽  
pp. 244-255 ◽  
Author(s):  
Jack F. Klaverkamp ◽  
Vince P. Palace ◽  
Christopher L. Baron ◽  
Robert E. Evans ◽  
Kerry G. Wautier
Keyword(s):  
Municipal Wastewater ◽  
Cumulative Effects ◽  
Disposal Site ◽  
Garbage Disposal ◽  
Disposal Facility ◽  
Multiple Contaminants ◽  
Wastewater Effluents ◽  
Liver Tissues

Abstract Pearl dace (Semotilus margarita) were held in cages and exposed to mine effluents, municipal wastewater effluents, a combination of the two, or to the combination in addition to runoff from a garbage disposal facility. Fish exposed to mining effluents only had the lowest mean lengths and weights but highest concentrations of As, Ni and Hg and lowest Zn in their viscera. Fish exposed to municipal wastewater effluents only had the highest concentrations of Cd and metallothionein in their viscera. Histopathological analyses of gill and liver tissues revealed a higher incidence of lesions in fish exposed to municipal wastewater effluents. These fish also had the highest LSIs, condition factors and mean vitellogenin concentrations in plasma from males. Fish exposed near the garbage disposal site had the highest concentrations of Pb and Se in their viscera.

Treatment of Trace Organic Compounds by Membrane Processes: At the Lake Arrowhead Water Reuse Pilot Plant

1999 ◽  
Vol 40 (4-5) ◽  
pp. 293-301 ◽  
Author(s):  
Bruno B. Levine ◽  
Kapal Madireddi ◽  
Valentina Lazarova ◽  
Michael K. Stenstrom ◽  
Mel Suffet
Keyword(s):  
Pilot Plant ◽  
Water Reuse ◽  
Ultra Violet ◽  
Treatment Efficiency ◽  
Small Molecular Weight ◽  
Potable Reuse ◽  
Low Concentrations ◽  
Neutral Compounds ◽  
Indirect Potable Reuse ◽  
Trace Organic

Organic and trace organic performance data for ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) at the Lake Arrowhead water reclamation pilot plant are analyzed to determine the treatment efficiency of these processes in an indirect potable reuse design. Four organic parameters were studied: dissolved organic carbon (DOC), ultra-violet absorbance at 254 nm (UV-254), SUVA and base neutral analysis (BNA). UF and NF removed the larger compounds from the influent, but had no significant impact on the base neutral fraction with the exception of sterols. The RO process removed DOC and UV-absorbance compounds from the effluent to their respective detection limits. Base neutral compounds were significantly removed by RO, leaving at extremely low concentrations small molecular weight compounds, indicating indirect potable reuse is technically feasible.

Nontargeted Analysis of Trace Organic Constituents in Reverse Osmosis and UV-AOP Product Waters of a Potable Reuse Facility

2021 ◽  
Author(s):  
Kenneth P. Ishida ◽  
Raisa F. Luna ◽  
William H. Richardot ◽  
Nicolas Lopez-Galvez ◽  
Megan H. Plumlee ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Potable Reuse ◽  
Organic Constituents ◽  
Trace Organic

scholarly journals Contribution to the Study of Solid-Solid Thermal Contact Resistances--A Comparative Study

2021 ◽  
Vol 45 (4) ◽  
pp. 267-272
Author(s):  
Rahmouna Cheriet ◽  
Bourassia Bensaad ◽  
Fatiha Bouhadjela ◽  
Soufyane Belhenini ◽  
Mohammed Belharizi
Keyword(s):  
Contact Resistance ◽  
Contact Pressure ◽  
Mixed Method ◽  
Thermal Contact Resistance ◽  
Low Cost ◽  
Thermal Contact ◽  
Three Dimensional ◽  
Empirical Models ◽  
Three Dimensional Finite Element ◽  
Semi Empirical

This study presents a mixed numerical / semi-empirical approach that primarily aimed to estimate the thermal contact resistance between two solids. The results obtained by this mixed method were compared and validated by experimental measurements of this resistance. Three semi-empirical models were used, namely the Mikic model, the Yovanovich model and the Antonetti model. The three-dimensional finite element numerical simulation was used to estimate the contact pressure between the two solids. Then this contact pressure obtained numerically was compared to the hardness of the solids in contact. The findings indicated that the numerically obtained contact pressures were close to hardness. Therefore, the hardness, which is usually used as an input variable in semi-empirical models, was replaced by the contact pressure. The thermal contact resistance obtained by this mixed method was then compared with the experimental one. The outcomes obtained from this comparison turned out to be very conclusive and can therefore be used to reinforce our approach which can actually be viewed as a reliable and low-cost method for estimating the thermal contact resistance between solids in contact.

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