Comparative analysis of solar pasteurization versus solar disinfection for the treatment of harvested rainwater.

摘要: Numerous pathogens and opportunistic have been detected in harvested rainwater. Developing countries, particular, require time- cost-effective treatment strategies to improve the quality of this water source. The primary aim current study was thus compare solar pasteurization (SOPAS; 70 79 °C; 80 89 °C; ≥90 °C) disinfection (SODIS; 6 8 hrs) for their efficiency reducing level microbial contamination chemical (anions cations) SOPAS SODIS treated untreated rainwater samples were also monitored. While anion concentrations all within drinking guidelines, lead (Pb) nickel (Ni) exceeded guidelines samples. Additionally, iron (Fe) both 8 hr above guidelines. A >99% reduction Escherichia coli heterotrophic bacteria counts then obtained Ethidium monoazide bromide quantitative polymerase chain reaction (EMA-qPCR) analysis revealed a 94.70% viable Legionella copy numbers samples, while after 8 hrs yielded 50.60% 75.22% decrease, respectively. Similarly, 99.61% Pseudomonas observed treatment, 47.27% 58.31% systems reduced indicator below detection limit, EMA-qPCR indicated that 2- 3-log numbers, 2-log 1-log respectively could be considered as an alternative, method