Progress 05/01/17 to 04/30/21
Outputs
Target Audience:The project's target audience include agricultural producers, water producers, researchers working in water for agriculture, and other stakeholders from environmental and agricultural community. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Goal 2: We have supported the education and training of 4 MS level and 2 PhD level graduate students during this project. They have all successfully completed their degrees by conducting research under Goal 1 of this project and prepared theses and dissertations. In addition, five faculty members and one extension staff were supported to conduct the project work. Two undergraduate student assistants were supported to conduct the project work and complete their training in engineering. All these personnel directly benefitted from the educational and research experiences of this project. Furthermore, the dissemination of the work through conferences, publications, and extension activities further allowed the project team members and stakeholders to have knowledge exchange for sustainable agriculture using reclaimed water for irrigation. How have the results been disseminated to communities of interest?Goal 3: The methods and the results have been communicated to the agricultural and water resources research community, both water and agricultural producers, and students at various levels. This has been done through routine discussions, conference presentations, extension fact sheets, peer reviewed journal papers, and MS and PhD theses/dissertations of the students trained. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
Goal 1: We identified emerging contaminants in reclaimed water used for irrigation, soil, and agricultural produce through experimental work at both lab scale and field scale. The data collected has been analyzed and usedto determine the fate of the contaminants and potential risks to human health. We found that the risk of emerging contaminants such as pharmeuticals in reclaimed water used for irrigation is not significant and below any thresholds identified in the literature for human exposure. We also investigated methods to further improve quality of reclaimed water to reduce detectable emerging contaminants through adsorption and coagulation-flocculation-filtration.It is possible to reduce the contaminant levels in reclaimed water further by these methods. The findings have been published in extension fact sheets, presented at conferences, discussed with agricultural producers and water reclamation professionals, and published in peer review journals.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
2. Shahriar, A., Tan, J., Sharma, P., Hanigan, D., Verburg, P., Pagilla, K.R., and Yang, Y. (2021) Fate and Human Health Impacts of Pharmaceuticals and Personal Care Products in Reclaimed Water Irrigation for Agriculture, Environmental Pollution, 276,11532.
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Progress 05/01/19 to 04/30/20
Outputs
Target Audience:The target audience include agricultural producers, water producers, extension staff and students, environmental engineering and natural resources students and researchers. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?The project provided training opportunities for the faculty in researching fate and control of emerging contaminants inwater, soil and produce during reclaimed water irrigation. Threegraduate students were trained on this research in addition to the 2 graduate students who graduated in Year 3. The students were trained to design experiments for lab scale and greenhouse research and set-up the experimental systems. The students have prepared publications based on the results and have or in the process of presenting in different journals and conference proceedings. How have the results been disseminated to communities of interest?The results have been disseminated to reclaimed water producers and agricultural producers through various publications including Extension Fact Sheets and journal papers. The extension fact sheets were disseminatedto water utility personnel, agricultural producers, State Water Engineer office staff, NV-EPA staff, Nevada Cattlemen's Association, Nevada Agricultural Foundation, Nevada Farm Bureau, and The Nature Conservancy, NV Chapter. Several conference presentations and in-person live eventsscheduled for spring of 2020 were canceled due to COVID-19 pandemic. We hope to have more live activites in year 4 to disseminate our results, findings, and recommendations to community as well as stakeholders. What do you plan to do during the next reporting period to accomplish the goals?The project received no-cost extension to Year 4 due to COVID-19 pandemic. In year 4, some of the outstanding field scale and greenhouse experiments are being finished. Additionally, the results will be analyzed and additional publications and fact sheets will be completed. We will complete modeling simulations based on the results. We hope to disseminate the overall project findings to stakeholders including agricultural producers and water producers, and community-at-large on benefits and risks of reclaimed water for irrigation and how enable these practice for sustainable agriculture minimizing human health impacts.
Impacts
What was accomplished under these goals?
In year 3, we completed most of the experimental and field scale work related Objective 1 of the project and have developed/developing numerous publications and theses. The details are as follows: The project continued research on methods to remove PPCPs from reclaimed water using biochar and chemical precipitation methods. Two MS students who were working on this research successfully completed their thesis work and graduated. One publication on use of biochar to remove PPCPs from reclaimed water has been submitted and published. An additional paper on use of Al and Fe salts to remove bulk organic matter and PPCPs during coagulation-flocculation-sedimentation of reclaimed water is in preparation. We continued to quantify PPCPs in reclaimed wastewater, alfalfa, soil pore water, and soil samples from a field irrigated with reclaimed wastewater. We have published some of these results in Science of the Total Environment.A controlled greenhouse experiment was conducted by other team members (Verburg) and PPCPs in the crops were again quantified by our team. Dr. Verburg is working with our team to interpret the results from these experiments. We have also conducted a meta-analysis of publications which examined crop biomass changes as a function of PPCPs in the irrigation water. The results from this work were also published. We also conducted a prospecting analysis of PPCPs in terminal lakes in the region which receive both agricultural runoff and reclaimed wastewater inputs. PPCP levels appear to be low and similar to concentrations found in other lakes, despite these lakes having losses only through evaporation and infiltration. We are continuing to develop publications from this research, including an extension publication. We finalized a greenhouse and field study assessing the fate of PPCPs in soils and plants. The greenhouse study focused on PPCP uptake in alfalfa and green wheatgrass irrigated with tap water, tap water spiked with high concentrations of selected compounds and reclaimed waste water. In addition, we assessed if plant uptake can be mitigated by the addition of biochar derived from pyrolysis of woody plant species to the soil. The field study was conducted at main Station Field Laboratory. In this study, soil solution was sampled in plots in which soils were amended with biochar to assess the leaching potential of PPCPs. The plots were irrigated with reclaimed waste water, similar to the water used in the greenhouse study. The results from both studies indicate that plant uptake of PCPPs is relatively small and plant PCPP content did not appear to be a health hazard. Uptake patterns did not appear to correlate with concentrations present in irrigation water and behavior of compounds could not always be predicted based on chemical characteristics such as Kow and pKa values. In addition, amendment of biochar did not result in significant reductions in plant uptake for most compounds. The compound DEET was ubiquitous in both plants and soils in both greenhouse and field studies. We have finalized the model for evaluating how emerging trace organic contaminants are transferred from wastewater to agricultural products, and subsequently to human beings through diet. In this study, a model was developed to simulate the fate of five trace organic compounds (TrOCs); triclosan (TCS), carbamazepine (CBZ), naproxen (NPX), gemfibrozil (GFB), and fluoxetine (FXT) during wastewater reuse for agriculture, as well as potential human dietary exposure and health risk. Our study has established a modeling method for evaluating the fate and human health effects of TrOCs in reclaimed water reuse for the agricultural system and developed an index for screening compounds with high potential to accumulate in agricultural products. The model and findings are valuable for managing water reuse for agricultural irrigation and mitigating the harmful effects of TrOCs. In addition, we have developed a plant uptake model to investigate the pH-dependent speciation of trace ionic organic compounds in soils and their plant uptake during wastewater reuse for agriculture. Our results showed that pH played an important role in regulating the plant uptake of ionic compounds. The concentrations of these compounds in soils and plant tissues may be over- or under-estimated by several orders of magnitudes, if the speciations are neglected. Sorption of the compounds to both organic matter and minerals in soils greatly regulate their accumulation in soils and uptake by the agricultural plants. This result clearly suggests the importance of pH and the compound speciation in regulating the plant uptake of the ionic organic compounds and their consequent human dietary exposure. We continued to integrate the basic research methods and findings with Extension educational outreach through developing Extension publications and providing these publications to targeted audience for this project (agricultural irrigators and related water managers/water management organizations) and the general public. These peer-reviewed publications were disseminated by: 1) providing copies at the 2019 College of Agriculture, Natural Resources, and Biotechnology Field Day (attended by approximately 350); and 2) online via the University of Nevada, Reno Extension website and public library system. In Year 3, we produced threepeer-reviewed Extension publications to serve as these educational materials. One of these publications we developed to respond directly to the project's Advisory Council where the stakeholders identified an information need to provide guidance for growers in accessing and using reclaimed waters as alternative irrigation water source. We partnered with staff with State of Nevada Environmental Protection (NDEP) to develop a publication that outlines Nevada Administrative Code (NAC) 445A.274 to 445A.280 which guides the current regulatory use of reclaimed water for the State. Staff with the Bureau of Water Pollution Control within (NDEP) assisted the Extension portion of the project team in outlining how this agency provides oversight and issues discharge permits for reclaimed water use according to NAC 445A.275 and NAC445A.276 with reuse categories defined by water quality, ranging from A+ through E with state-approved applications including irrigated agriculture, residential landscape irrigation, industrial processes, toilet flushing, and replenishment of groundwater basins through artificial groundwater. We provided outreach education to irrigators concerning why it is required and how to apply for a discharge permit with the Bureau of Water Pollution Control. Additionally, we provided outreach education on why and how to prepare a "Reclaimed Water Management Plan." A second publication provides a descriptive overview of the entire project, to raise awareness of the use of reclaimed water as an alternative irrigation source in arid regions. Two additional Extension publications (one in preparation) resulted from Co-PIs collaborating with their graduate research students to translate and summarize basic research methods and results to disseminate to the public. In Year 3, these publications summarized the methods and results pertaining to: 1) Pharmaceuticals and Personal Care Products (PPCPs) in Alfalfa Irrigated with Reclaimed Water; and 2) Accumulation of Contaminants in Forage Crops Following Irrigation With Treated Wastewater Effluent. Both Extension products resulted from research conducted at field sites located at the University of Nevada, Reno Nevada Agricultural Experiment Station (Main Station Field Laboratory).
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Yanala, S. R. and Pagilla, K.R. (2020) Use of biochar to produce reclaimed water for irrigation use, Chemosphere, https://doi.org/10.1016/j.chemosphere.2020.126403
- Type:
Journal Articles
Status:
Accepted
Year Published:
2020
Citation:
Sharma, P., Poustie, A., Verburg, P., Pagilla, K., Yang, Y., Hanigan, D. Trace Organic Contaminants in Field-scale Cultivated Alfalfa, Soil, and Pore Water after 10 Years of Irrigation with Reclaimed Wastewater. Science of the Total Environment � in press, https://doi.org/10.1016/j.scitotenv.2020.140698
- Type:
Journal Articles
Status:
Accepted
Year Published:
2020
Citation:
Poustie, A., Yang, Y., Verburg, P., Pagilla, P., Hanigan, D. Reclaimed Wastewater as a Viable Water Source for Agricultural Irrigation: A Review of Food Crop Growth Inhibition and Promotion in the Context of Environmental Change. Science of the Total Environment in press, https://doi.org/10.1016/j.scitotenv.2020.139756.
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
2. Sterle, K., Ormerod, K.J., Singletary, L. Pagilla, K., Hanigan, D., Verburg, P., & Yang, Y. (2020). Reclaiming Water for Urban Foodsheds: State of Nevada Regulations and Permitting. University of Nevada-Reno Extension Fact Sheet: FS-20-11; Reno, NV.
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
3. Sharma, P., Pagilla, K., Hanigan, D., Singletary, L. (2020, publication number pending approval of revisions). Pharmaceuticals and Personal Care Products (PPCPs) in Alfalfa Irrigated with Reclaimed Water. University of Nevada-Reno Extension Fact Sheet. FS-20-xx; Reno, NV.
- Type:
Theses/Dissertations
Status:
Published
Year Published:
2019
Citation:
Yanala, Sandeep, R. Use of Biochar to Produce Reclaimed Water for Irrigation Reuse Purposes, MS Thesis, University of Nevada, Reno, 2019
- Type:
Theses/Dissertations
Status:
Published
Year Published:
2019
Citation:
Pierce, K. Screening of Coagulants for the Removal of Pharmaceuticals and Personal Care Products, MS Thesis, University of Nevada, Reno, 2019.
- Type:
Journal Articles
Status:
Submitted
Year Published:
2020
Citation:
Shahriar, A., Tan, J., Sharma, P., Hanigan, D., Verburg, P., Pagilla, K.R., Yang, Y. (2020) Fate and Human Health Impacts of Trace Organic Chemicals in Reclaimed Wastewater Irrigation for Agriculture, Environ. Sci. Tech., In Review.
- Type:
Other
Status:
Published
Year Published:
2019
Citation:
Pagilla, K.R., Yang, Y., Hanigan, D.J., Verburg, P.S., Sterle, K.M. & Singletary, L. (2019). Reclaiming Water for Urban Foodsheds: Program Overview. University of Nevada-Reno Extension Fact Sheet: FS-19-08; Reno, NV.
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Progress 05/01/18 to 04/30/19
Outputs
Target Audience:The work conducted under this project has been disseminated to other students conducting related research at the University of Nevada, Reno. The progress of the work was presented as conference presentations at vaious national and international conferences,andas student posters to water professionals including over 200 operators and managers of water reclamation facilities during the 2019Nevada Water Environment Association Annual Conference in Reno, Nevada. The work has also been disseminated to undergraduate interns who are working in the faculty (PI and co-PIs) involved in this research. Extension outreach target audiences have included agricultural producers, agricultural conservation districts, irrigation districts, tribal water managers, state water regulators, and environmental organizations. Changes/Problems:An assessment of impacts on program stakeholders to date indicates knowledge gains and attitude changes as demonstrated during 2018 UNR CABNR Field Day through increased requests from agricultural producers concerning potential use of non-traditional water sources for crop irrigation purposes- particularly as an alternative source during water short years or drought conditions. Key issues communicated by producers to date involve: 1) how to access (via existing or future infrastructure) non-traditional water sources for irrigation; 2) how to acquire or facilitate acquisition of State permit for use of these waters for crop irrigation purposes; 3) what exactly are the risks, if any, and how to mitigate risks to human health as a result of using these waters for crop irrigation purposes; 4) what are the economic benefits to producers from irrigating with non-traditional water sources as a substitute for fresh water sources. What opportunities for training and professional development has the project provided?The project provided training opportunities for the faculty in development of new methods for analyzing water, soil and produce media for emerging chemical contaminants in our laboratories. The four graduate students were trained on conduct of these methods. The students were trained to design experiments for lab scale and greenhouse research and set-up the experimental systems. The students have prepared publications based on the results and have or in the process of presenting in different journals and conference proceedings. Extension provided project information approximately 500 diverse water use community and organizational leaders through the UNR CABNR 2018 Annual Field Education Day, 83 Israeli, and 4 US scientists participating in a week-long workshop on alternative water sources for irrigated agriculture in Israel. How have the results been disseminated to communities of interest?The results have been disseminated to reclaimed water producers in northern Nevada through the Nevada Water Environment Association Annual Conference. The project goals and highlights were dissseminated to agricultural producers and community-at-large during UNR's Annual Field Day at the Agricultural Experiment Station.In Year 2, research results (available to date) have been disseminated (via extension fact sheet) to water utility personnel, agricultural producers, State Water Engineer office staff, NV-EPA staff, Nevada Cattlemen's Association, Nevada Agricultural Foundation, Nevada Farm Bureau, and The Nature Conservancy, NV Chapter. What do you plan to do during the next reporting period to accomplish the goals?In year 3, the principal investigators and students will complete the Year 3 tasks.As per the schedule of the project tasks, we will continue to investigate all the objectives of the project. We will expand the educational aspects by increasing the number of students benefitted by the research and its outcomes. In Year 3, to expand the Extension outreach education component (goal 3), we will complete and distribute the Extension publication series summarizing research methods and results to educate the diverse water use communities statewide - information will also include potential benefits and costs for substituting non-traditional for fresh water sources to irrigate alfalfa and grass hay crops. The research methods and results will also be disseminated to participants of the annual meetings of the University Agricultural Science Field Day ~500), Nevada Farm Bureau Annual Meeting (~50), Nevada Cattlemen's Association (~150), Native Waters on Arid Land Tribal Summit (~150), and Nevada Water Resource Association Meetings (~200). Evaluative data will be collected through a random sample of participants of extension outreach events to assess immediate short-term impacts (e.g., knowledge gains and attitude changes concerning use of non-traditional water sources for irrigation and strategies to mitigate human health risks) and medium-term impacts (behavioral changes or actions taken to improve access to irrigate using non-traditional water sources and actions taken to improve permitting process to allow for the safe use of non-traditional water for agricultural irrigation).
Impacts
What was accomplished under these goals?
We have continued to quantify PPCPs in wastewater that is used to irrigate UNR MSFL and PPPCPs in alfalfa irrigated with the treated wastewater. PPCPs in the irrigation water ranged from 10s of µg/L to BDL. Caffeine, ibuprofen, and trimethoprim were consistently quantified at the greatest concentrations in the wastewater influent (10 to 83 µg/L). Caffeine was removed to the greatest extent by wastewater treatment, to ~300 ng/L in the effluent. Three lysimeter samples from three lysimeters installed at MSFL were also analyzed, and had concentrations from BDL to 2.4 µg/L. DEET was consistently detected at the greatest concentration in the lysimeter water, greater than that present in the treated wastewater, reflecting use by field workers, but was poorly transported into the plant (~1 ng/g dry mass across three sampling events during the summer of 2018). Primidone, sulfamethoxazole, and trimethoprim were found at the greatest concentrations inside the alfalfa, from 13 to 35 ng/g dry mass. We also conducted a prospecting analysis of store purchased vegetables and, generally, concentrations present in the store purchased plants were greater than those present in the alfalfa. We have completed two different treatments of reclaimed water used for irrigation of animal food crops to investigate their ability to reduce trace contaminants (pharmaceuticals). They include coagulation-flocculation-sedimentation and biochar adsorption. Both these sets of investigations have revealed useful information to enhance the quality of reclaimed for irrigation purposes. We are continuing to investigate advanced oxidation of contaminants in reclaimed water as a polishing technique for agricultural reuse purposes. We have developed a model framework for evaluating how emerging trace organic contaminants are transferred first from wastewater to agricultural products, and subsequently to human beings. We have simulated the fate (soil accumulation, plant uptake, and animal bioaccumulation) of emerging trace organic pollutants including carbamazepine, gemfibrozil, ibuprofen, naproxen, and triclosan, in a controlled farmland setting using reclaimed wastewater for irrigation. Human exposure and their associated health risks were also evaluated. Depending on the soil degradation rate, results have shown soil concentrations for carbmazepine and fluoxetine approaching a steady state at around 200 day of irrigation. Tricolsan and naproxen reached a steady state after about 80 days, while gemfibrozil's steady state only took 40 days. Plant uptake and equilibrium concentration contributed largely to the uncertainty in estimation of soil concentrations and their dynamics. Human dietary exposure to trace organics and related health risk were also assessed to be relatively low, especially under the scenario that the wastewater will be treated to of a relative high quality. An index for evaluating the transfer of contaminants from wastewater effluent to agricultural crop and animal grazed has been developed. The results showed that the compounds with relatively high Kow but low soil degradation rates tend to be accumulated by agricultural crops and grazed animals. We initiated a greenhouse study with alfalfa and green wheatgrass, two important forage crops in semi-arid regions of the western US. The greenhouse study is designed to assess if plants accumulate emerging contaminants and whether or not biochar affects plant uptake of these contaminants. Plants are watered with either tap water, treated wastewater, or water amended with a mixture of contaminants. The greenhouse study is expected to run through the summer of 2019. In the fall of 2018, we installed tension lysimeters in an alfalfa field at Main Station Farm Laboratory (MSFL) to sample soil water present below the rooting zone. During this period, the field was not irrigated. Samples were collected biweekly on average. In April 2019, we installed lysimeters in an ongoing field experiment at MSFL in which biochar was amended to field soils. All experimental plots are irrigated with treated wastweater. The lysimeters were installed below the rooting zone to capture potential leachate. The lysimeters are being sampled weekly and the samples are being analyzed for all major contaminants. We have informed approximately 200 water producers about the significance of reclaimed water for peri-urban agriculture and presented the research findings from above at the Nevada Water Environment Association Annual Conference in Reno, Nevada. We integrated science research with extension outreach through initiating the development of a series of peer-reviewed Extension publications - in Year 2 we published an Extension fact sheet (see Yang et al. 2018) that reported on the development of an effective method for detecting and analyzing the environmental fate of CNTs in the soil-plant system and ultimately human exposure to CNTs (Das et al., 2018) The fact sheet demonstrated research on the uptake and translocation of p-MWCNT and c-MWCNT in lettuce plants grown in hydroponic media in greenhouse environment. To strengthen public understanding of research results to date on the use of non-traditional water as an input to food production, we disseminated the first of a series of Extension publications through the university extension website and library system to water utility personnel, agricultural producers, State Water Engineer office staff, and NV-EPA staff. To increase public awareness of non-traditional water sources in food production, we provided research progress to approximately 500 participants during the UNR College of Agriculture, Biotechnology, and Natural Resources (CABNR) 2018 Educational Field Day -- participants included prospective and current students and their parents, agricultural producers and pertinent organizational representatives including Nevada Cattlemen's Association, Nevada Agricultural Foundation, Nevada Farm Bureau, and The Nature Conservancy (NV Chapter). Project team outreach specialist (Singletary) disseminated information about this research project and established research networks with Israeli researchers during a week-long workshop focused on water conservation, alternative water sources for irrigated agriculture, water pricing, and water production. She was a member of a US scientist delegation that included 3 research faculty and 1 doctoral student. The workshop was organized in collaboration with faculty from Ben Gurion University and travel funded by the this grant-funded projects in addition to USDA NIFA Water4AG program at The Pennsylvania University, Water Center at the University of Nebraska, Lincoln, and USDA-ARS Arizona. She disseminated information on project research to the Water4AG research group (4) in addition to scientists/faculty and graduate students (~83) with Ben Gurion University Volcani Agricultural Experiment Research Station in Tel Aviv (~10); The Galilee Society and The Arab National Society for Health Research and Service (~20) in Shefa-'Amr; Zuckerberg Institute for Water Research - Jacob Blaustein Institutes for Desert Research (7) in Sede Boqer Negev; SHAFDAN - Domestic wastewater purification facility in southwest of Tel Aviv (~20); Sorek Desalination Plan north of Gaza Strip (~20); and Sea of Galilee Water Treatment Facility in Golan Heights (~6).
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Tan JW, Verburg P, Hanigan D, Pagilla K, Yang Y. 2019. Simulation for the fate of emerging contaminants during water reuse in agriculture. American Chemical Society Spring Meeting. Orlando, FL, USA.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Tan JW, Verburg P, Hanigan D, Pagilla K, Yang Y. 2019. Framework for simulating the fate of emerging contaminants during water reuse in agriculture. Nevada Water Association Annual Meeting. Sparks, NV, USA.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Pagilla K, Verburg P, Hanigan D, Yang Y. 2018. Water Reuse Project at University of Nevada-Reno: Addressing Human Health Impacts from Emerging Contaminants in Reclaimed Water to Enhance its Use for Urban and Peri-Urban Agriculture. American Chemical Society Annual Meeting. New Orleans, LA, USA.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Sharma, P., Poustie, A., Hanigan, D. Pharmaceuticals and Personal Care Products Accumulation in Plants at the Field-scale and in Terminal Lakes. Nevada Water Environment Association Annual Conference, Sparks, NV. January, 2019.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Poustie, A., Hanigan, D. Pharmaceutical Uptake in Crops Irrigated with Treated Wastewater. Nevada Water Environment Association Annual Conference, Sparks, NV. April, 2018
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
POSTER: Pagilla K, Verburg P, Hanigan D, Yang Y. 2018. Water Reuse Project at University of Nevada-Reno: Addressing Human Health Impacts from Emerging Contaminants in Reclaimed Water to Enhance its Use for Urban and Peri-Urban Agriculture. NIFA PI Meeting. Newark, DE, USA.
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
POSTER: Sharma, P., Pagilla, K., Hanigan, D. Pharmaceuticals and Personal Care Product Accumulation in Plants at the Field Scale and in a Terminal Lake. American Water Works Association Water Quality Technology Conference, Toronto, ON. November 13, 2018.
- Type:
Other
Status:
Published
Year Published:
2019
Citation:
POSTER: Yanala, S. and Pagilla, K.R. (2019) Is Biochar adsorbent a viable option for removal of emerging contaminants from treated wastewater? IWA Water Reuse 2019, Berlin, Germany, June 16-20.
- Type:
Other
Status:
Published
Year Published:
2019
Citation:
POSTER: Pierce, K., K. R. Pagilla, Jahan, B. (2019) Total organic carbon as a surrogate for the removal of pharmaceutical and personal care products in the coagulation-flocculation process, IWA Water Reuse 2019, Berlin, Germany, June 16-20.
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Progress 05/01/17 to 04/30/18
Outputs
Target Audience:The work conducted under this project has been disseminated to other students conducting related research at the University of Nevada, Reno. The progress of the work was presented as student postersto water professionals including operators and managers of water reclamation facilities during the 2018 Nevada Water Environment Association Annual Conference in Reno, Nevada. The work has also been disseminated to undergraduate interns who are working in the faculty (PI and co-PIs) involved in this research. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?The project provided training opportunities for the faculty in development of new methods for analyzing water, soil and produce media for emerging chemical contaminants in our laboratories. The four graduate students were trained on conduct of these methods for future research in the project. Additionally, the students were trained to design experiments for lab scale and greenhouse research and set-up the experimental systems. How have the results been disseminated to communities of interest?The results have been disseminated to reclaimed water producers in northern Nevada through the Nevada Water Environment Association Annual Conference. In Year 2, further dissemination of the results and outcomes to agricultural producers and extension staff/students will be achieved. What do you plan to do during the next reporting period to accomplish the goals?As per the schedule of the project tasks, we will continue to investigate all the objectives of the project. Specifically, we will complete technical goals 1, 2, and 4 of the project, and make significant progress on technical goal 3. We will expand the educational aspects by increasing the number of students benefitted by the research and its outcomes.
Impacts
What was accomplished under these goals?
The project was successful in achieving the following during year 1. We have developed methods to identify emerging chemical contaminants in reclaimed water and solid media using GC-MS and LC-MS techniques. We have identified the levels of emerging contaminants in reclaimed water across the process train of the water reclamation system. We have developed and set-up the lab scale experimental systems (chemical treatment and biochar adsorption) to mitigate emerging chemical contaminants in the reclaimed water. We have developed methods and experimental systems to conduct greenhouse experiments to determine uptake of emerging contaminants by agricultural produce. We have educated 4 graduate students with partial support for each from this research project. We have informed water producers the significance of reclaimed water for peri-urban agriculture and presented the research findings from above at the Nevada Water Environment Association Annual Conference in Reno, Nevada.
Publications
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