There are differences between the EPA Method 365 and the APHA-AWWA-WEF's Standard Method 4500 with respect to the post-digestion treatment procedures of the persulfate-digested water. The effects on total phosphorus analysis of different post-digestion treatment procedures, such as neutralization and reacidification, and shaking/settling, were investigated in this study using the total phosphor...

BIOSIS COPYRIGHT: BIOL ABS. C14-simazine being introduced into rats, only trace amounts oflabelled N-nitrososimazine were found in the liver, thymus, kidney and spleen tissues in single cases. Introduction of simazine together with sodium nitrite has lead to the considerable increase of the frequency of cases and amount of N-nitrososimazine formation in analyzed tissues. Nitrosation of C 14-sim...

La investigación tiene por objetivo analizar la calidad del agua en el río Chambo, ubicado Riobamba provincia de Chimborazo – Ecuador. El proceso analítico desarrollado a partir método estándar APHA, AWWA, WEF, 2005. Se evidencia que existe contaminación heterótrofos aeróbicos y coliformes totales, constituyéndose una amenazada para salud humana, siendo necesaria implementar medidas saneamiento...

Water samples from 110 public wells in Ohio were analyzed for fluoride content using both an ion-specific electrode and a coIorimeter. In addition to the fluoride testing, analyses were performed on selected known interfering substances in the water. Sixty per cent of the samples differed by > 0.1 ppm fluoride with a mean difference of+ O. 14 ppm. Prescriptions for dietary fluoride supplementat...

From David LaFrance, CEO, AWWA: In this month's Last Drop column, the focus remains on AWWA's Water 2050 initiative, as it gathers crucial insights from generation set to inherit work. This installment marks third of five Takeovers, with next generation. young professionals (YPs) Pooja Chari and Renee Lanza take over share their vision for industry's future highlight importance increased YP inv...

Uzun dönemli sürdürülebilir su ve atıksu yönetimi için sistem bileşenlerinin düzenli olarak izlenmesi performans analizinin yapılması gerekir. Bunun verisi ölçülebilir, uygun, uygulanabilir göstergelerin kullanılması oldukça önemlidir. Bu çalışmada açısından analizi kıyaslaması amacıyla kullanılan doğru sistematik bir şekilde hesaplanması web tabanlı hesaplama aracı geliştirilmiştir. Geliştiril...

Journal AWWAVolume 115, Issue 7 p. 76-78 Technical Advancements Advancing Water Treatment Technology Through Materials Science and Supercomputing Lauren Nicole Core, Corresponding Author Core [email protected] Search for more papers by this author First published: 31 August 2023 https://doi.org/10.1002/awwa.2147Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTra...

Journal AWWAVolume 114, Issue 8 p. 73-75 Money Matters Create a Transformative Future With Federal Funding, Financial Planning Dawn Lund, Corresponding Author Lund [email protected] Search for more papers by this author First published: 04 October 2022 https://doi.org/10.1002/awwa.1983Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give...