Opportunities for Treatment and Reuse of Agricultural Drainage in the United States,ACS ES&T Engineering

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Opportunities for Treatment and Reuse of Agricultural Drainage in the United States
ACS ES&T Engineering ( IF 7.4 ) Pub Date : 2021-11-17 , DOI: 10.1021/acsestengg.1c00277
Charifa A. Hejase ₁ , Katelin A. Weitzel ₁ , Sean C. Stokes ₂ , Brandi M. Grauberger ₃ , Robert B. Young ₂ , Miguel S. Arias-Paic ₄ , Minghao Kong ₁ , Soryong Chae ₁ , Todd M. Bandhauer ₃ , Tiezheng Tong ₅ , Daniel R. Herber ₆ , Sherry Stout ₇ , Ariel Miara ₇ , Zhe Huang ₇ , Anna Evans _{7,

8} , Parthiv Kurup ₇ , Michael Talmadge ₇ , Alicen Kandt ₇ , Jennifer R. Stokes-Draut ₉ , Jordan Macknick ₇ , Thomas Borch _{2,

5,

10} , Dionysios D. Dionysiou ₁

Affiliation

Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45221, United States
Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
REACH Co-Lab, Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
Bureau of Reclamation, U.S. Department of the Interior, Denver, Colorado 80225, United States
Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
Department of Systems Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
National Renewable Energy Laboratory, Golden, Colorado 80401, United States
Advanced Energy Systems, Colorado School of Mines, Golden, Colorado 80401, United States
Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States

Irrigation accounts for 42% of the total freshwater withdrawals in the United States. Climate change, the pressure of a growing population, degrading water quality, and increased competition from other sectors could constrain continuous supply to meet future agricultural water demand. This study presents an evaluation framework to assess the potential reuse of agricultural drainage water for crop irrigation. Using a regional approach, we review the current state of agricultural drainage treatment and reuse and the institutional, economic, and other barriers that can influence the reuse decision. In the 31 eastern states, agricultural drainage contains valuable nutrients that can be reused for irrigation with minimal treatment, while the 17 western states struggle with large volumes of saline drainage that can contain constituents of concern (e.g., selenium), preventing reuse without treatment. Using a new decision-support tool called WaterTAP3, a potential treatment train for saline agricultural drainage was analyzed to identify treatment challenges, research needs, and the potential implementation at a larger scale. As demonstrated by our case study, desalination of agricultural drainage is costly and energy intensive and will require sizable investments to fully develop and optimize technologies as well as manage the generated waste and brine.

中文翻译：

美国农业排水处理和再利用的机会

灌溉占美国淡水总取水量的 42%。气候变化、人口增长的压力、水质恶化以及来自其他部门的竞争加剧可能会限制持续供应以满足未来农业用水需求。本研究提出了一个评估框架，以评估农业排水用于作物灌溉的潜在再利用。使用区域方法，我们回顾了农业排水处理和再利用的现状以及可能影响再利用决策的制度、经济和其他障碍。在东部的 31 个州，农业排水含有宝贵的营养物质，只需极少的处理即可重新用于灌溉，而西部 17 个州的大量含盐废水可能含有令人担忧的成分（例如，硒），防止未经处理的重复使用。使用一种名为 WaterTAP3 的新决策支持工具，分析了一种潜在的咸水农业排水处理系统，以确定处理挑战、研究需求和更大规模的潜在实施。正如我们的案例研究所证明的那样，农业排水脱盐成本高昂且能源密集，需要大量投资来充分开发和优化技术以及管理产生的废物和盐水。

更新日期：2021-11-17

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