Water Resources Professional Project Reports


Claire Kerven

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The Sanitary Waste System (SWS) at Los Alamos National Laboratory (LANL) is an extended-air, activated sludge wastewater treatment facility that is designed to treat 0.6 million gallons per day (MGD). However, the facility rarely receives more than 0.3 MGD and occasionally less than 0.1 MGD. Lack of sufficient flow and organic concentration into SWS, particularly on weekends and holidays, results in an inconsistent and often very low biochemical oxygen demand (BOD). Shortage of organic material leads to routine operation weaknesses and leaves SWS vulnerable to significant problems resulting from small amounts of toxic influents. The addition of residential influent from Los Alamos County will supply organic load to decrease this vulnerability, and improve nitrification during cold weather, weekends and holidays. Additional benefits include conservation of 223 acre-feet per year and significant savings when project dollars are not discounted. The project will also generate significant benefits not easily quantified, such as water for future LANL projects, and good will in the community.

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Los Alamos National Laboratory, an affirmative action/equal Opportunity employer, is operated by the Unversity of California for the U.S. Department of Energy under contract W-7405-ENG-36. By acceptance of this article, the publisher recognized that the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or to allow others to do so, for U.S Government purposes. Los Alamos National Laboratory requests that the publisher identify this article as work performed under the auspices of the U.S. Department of Energy. Los Alamos National Laboratory strongly supports academic freedom and a researcher's right to publish; as an institution, however, the Laboratory does not endorse the viewpoint of a publication or guarantee its technical correctness.


Sewage--Purification--Activated sludge process--New Mexico--Los Alamos County--Cost effectiveness., Sewage disposal plants--New Mexico--Los Alamos County--Cost effectiveness.


A Professional Project Submitted in Partial Fulfillment of the Requirements For the Degree of Master of Water Resources, Water Resources Program, University of New Mexico, Albuquerque, New Mexico.