Management of Trihalomethanes in Finished Drinking Water Through Source Water Precursor Monitoring

Trihalomethanes are organic compounds formed in drinking water distribution systems as a result of disinfection. This capstone project researched and evaluated the statistical correlation of trihalomethanes in finished drinking water and total organic carbon in source water using data generated by Denver area utilities. Results of the study conclude that some drinking water supply systems show a slight correlation between source water total organic carbon levels and trihalomethane levels in finished water. Results of the study also verify the assertion that changes to treatment for the reduction of trihalomethanes, for the protection of human health under the Safe Drinking Water Act should be determined by each utility, using information from gathered data, seasonal trends, and small scale batch testing.

Reduction of haloacetonitriles and haloacetones in natural waters using ceramic nanofiltration membranes

Póster presentado en 19th International Congress of Chemical and Process Engineering, Prague, Czech Republic August 28th-September 1st, 2010.

Catheter-related bloodstream infection: burden of disease in a tertiary hospital

Background: Surveillance programmes have become the most effective tool for controlling catheter-related bloodstream infections (CRBSI). However, few studies have investigated programmes covering all hospital settings. Aim: To describe the results of a control and prevention programme for CRBSI based on compliance with recommendations for insertion and maintenance, using annual burden of disease in a tertiary level hospital. Methods: A CRBSI control and prevention programme involving all hospital settings was implemented. The programme consisted of CRBSI surveillance, direct observation of insertion and maintenance of catheters to determine performance, and education for healthcare workers. Findings: In total, 2043 short-term catheters were inserted in 1546 patients for 18,570 catheter-days, and 279 long-term catheters were inserted in 243 patients for 40,440 catheter-days. The annual incidence density was 5.98 (first semester 6.40, second semester 5.64) CRBSI per 1000 catheter-days for short-term catheters, and 0.57 (first semester 0.66, second semester 0.43) CRBSI per 1000 catheter-days for long-term catheters. One hundred and forty insertion procedures were observed, with an average insertion time of 13 (standard deviation 7) min. Compliance with recommendations was as follows: hand hygiene, 86.8%; use of alcoholic chlorhexidine solution for skin disinfection, 35.5%; use of mask, 93.4%; use of gloves, 98.7%; use of gown, 75.0%; use of sterile cloth, 93.8%; use of cap, 92.2%; bandage application, 62.7%; and use of aseptic technique, 89.5%. Forty-five maintenance procedures were observed, and compliance rates were as follows: hand hygiene, 42.1%; use of gloves, 78.1%; and port disinfection with alcoholic chlorhexidine solution, 32.5%. Conclusion: The CRBSI control and prevention programme implemented at the study hospital has decreased the rate of CRBSI, provided important information about the total burden of disease, and revealed possible ways to improve interventions in the future.

Tratamentos periodontais em diabéticos

Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas Moniz

ICR water utility database system users' guide /

"EPA 814/B-96-004."

Weed control by soil sterilization /

Mode of access: Internet.

Recherches sur la nature et les effets du mephitisme des fosses d'Aisance /

Mode of access: Internet.

Untersuchungen über die therapeutischen und toxikologischen Wikrungen des Therapogen.

Inaug.-diss.--Berne, 1909.

Leitfaden der Desinfektion für Desinfektoren, Verwaltungsbeamte, Tierärzte und Ärzte.

Mode of access: Internet.

Über Carboxol I.

Inaug.--diss.--Hannover, 1911.

"Gewöhnliches Izal" als Desinfiziens und Desodorans in der Tierheilkunde.

Inaug.-diss.--Hannover, 1911.

Beiträge zur desinfizierenden Vorbereitung des Operationsfeldes in der Veterinärchirurgie ...

Lebenslauf.

Chinosol als händedesinfektionsmittel ...

Lebenslauf.

Klinische Untersuchungen über die Wirkung und Anwendung des Grotan (Para-chlor-meta-kresol)

Inaug.-diss.--Hannover, 1912.

"Pyrothen" dessen Bedeutung als Desinfiziens und Desodorans in der Tierheilkunde.

Inaug.--diss--Hannover, 1911.