Decontamination of Bacillus spores adhered to common drinking water infrastructure surfaces was evaluated using a variety of disinfectants. Corroded iron and cement-mortar lined iron represented the infrastructure surfaces, and were conditioned in a 23 m long, 15 cm diameter (75 ft long, 6 in diameter) pilot-scale drinking water distribution pipe system. Decontamination was evaluated using increased water velocity (flushing) alone at 0.5 m sec-1 (1.7 ft sec-1), as well as free chlorine (5 and 25 mg L-1), monochloramine (25 mg L-1), chlorine dioxide (5 and 25 mg L-1), ozone (2.0 mg L-1), peracetic acid 25 mg L-1) and acidified nitrite (0.1 mol L-1 at pH 2 and 3), all followed by flushing at 0.3 m sec-1 (1 ft sec-1). Flushing alone reduced the adhered spores by 0.5 and 2.0 log10 from iron and cement-mortar, respectively. Log10 reduction on corroded iron pipe wall coupons ranged from 1.0 to 2.9 at respective chlorine dioxide concentrations of 5 and 25 mg L-1, although spores were undetectable on the iron surface during disinfection at 25 mg L-1. Acidified nitrite (pH 2, 0.1 mol L-1) yielded no detectable spores on the iron surface during the flushing phase after disinfection. Chlorine dioxide was the best performing disinfectant with >3.0 log10 removal from cement-mortar at 5 and 25 mg L-1.The data show that free chlorine, monochloramine, ozone and chlorine dioxide followed by flushing can reduce adhered spores by >3.0 log10 on cement-mortar. This dataset is associated with the following publication: Szabo , J., G. Meiners, L. Heckman, G. Rice , and J. Hall. Decontamination of Bacillus spores adhered to iron and cement-mortar drinking water infrastructure in a model system using disinfectants. JOURNAL OF ENVIRONMENTAL MANAGEMENT. Elsevier Science Ltd, New York, NY, USA, 187: 1-7, (2017).

Disinfection of B. globigii spores (a non-pathogenic surrogate for B. anthracis) in clean and dirty water using the ATS-Waterline system, which uses ultraviolet light and a charged membrane filter. This dataset is associated with the following publication: Silva, G., J. Szabo, V. Namboodiri, R. Krishnan, J. Rodriguez, and A. Zeigler. Evaluation of and environmentally sustainable UV-assisted water treatment system for removal of Bacillus spores in water. WATER SCIENCE AND TECHNOLOGY. IWA Publishing, London, UK, 18(3): 968-975, (2018).

Excel dataset including reduced data for Evaluation of Water Treatments on Surfaces to Inhibit Bacterial Spore Resuspension manuscript. This dataset is associated with the following publication: Hook, D.A., J. Gilberry, C. Johnson, R. Yaga, and J. Archer. Evaluation of Water Treatments on Surfaces to Inhibit Bacterial Spore Resuspension. Remediation Journal. John Wiley & Sons, Inc., Hoboken, NJ, USA, 34(3): e21779, (2024).

These data are of spore removal from an asphalt parking lot using a power washer and garden hose and different wash aids.

This study examined the removal of chloroform under two environmental conditions (anaerobic and aerobic), and in the presence of ethanol as co-metabolite. Investigations of the biological community structure within the BTFs were also conducted. The use of aerobic fungi BTF under acidic condition successfully enhanced the biodegradation process of chloroform. The BTF provided more stable performance by having smaller standard deviation in the removal efficiency as compared to the anaerobic BTF. Hence, acidic aerobic BTF had achieved significant improvement in the removal of chloroform. This dataset is associated with the following publication: Sahle-Demessie, E., J. Lu, B. Mezgebe, and G. Sorial. Performance of Anaerobic Biotrickling Filter and Its Microbial Diversity for the Removal of Stripped Disinfection By-products. INTERNATIONAL JOURNAL OF ENVIRONMENTAL POLLUTION. Universidad Nacional Autonoma de Mexico, 228: 437, (2017).

Method for the removal and degradation of harmful disinfection byproducts from drinking water. This dataset is associated with the following publication: Mezgebe, B., K. Palanisamy,, G. Sorial, E. Sahle-Demessie, A. Aly Hassan, and J. Lu. Comparative Study on the Performance of Anaerobic and Aerobic Biotrickling Filter for Removal of Chloroform. ENVIRONMENTAL ENGINEERING SCIENCE. Mary Ann Liebert, Inc., Larchmont, NY, USA, 35(5): 462-471, (2017).

The data set is a spreadsheet that contains results of inactivation experiments that were conducted to to determine the effectiveness of chlorine in inactivating B. anthracis spore surrogates in wash waters similar to waters that would be generated during building decontamination activities. This dataset is associated with the following publication: Gallardo, V., D. Schupp, J. Heckman, R. Krishnan, and E. Rice. Inactivation of Bacillus Spores in Wash Waters Using Dilute Chlorine Bleach Solutions at Different Temperatures and pH Levels. WATER ENVIRONMENT RESEARCH. Water Environment Federation, Alexandria, VA, USA, 1-36, (2017).