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Wastewater treatment facilities in tourist areas, in comparison to other municipal facilities, require specific configurations
and additional management actions in order to achieve a reliable and cost-effective treatment. For example, the same facility
operates during winter with minimum flows and in summer with peak flows. Moreover, careful effluent management is required
to minimize environmental impact and health effects on tourists. In this study, effluent management data, including quantitative
and qualitative effluent characteristics, reuse, and economic aspects of the Hersonissos Wastewater Treatment Plant (WTP)
in Greece, are discussed. It has been designed to treat both municipal wastewater from the Hersonissos Municipality and septage
from the wider area. Analysis of effluent quantitative data showed two flow peaks in the summer period and only one in winter.
The WTP was found to provide a reliable level of treatment in terms of biochemical oxygen demand (95.9%), total suspended
solids (97.2%), and total nitrogen (87.7%) removal, but increased numbers of fecal coliforms were measured at some peak flow
periods, suggesting the need for additional management strategies. Effluent is reused mainly for agricultural irrigation;
secondary uses include fire protection and landscape irrigation. Economic analysis showed that for each cubic meter treated,
the total annual economic cost for treatment, filtration, and reuse infrastructure was 1.07 €, 0.05 €, and 0.08 €, respectively. 相似文献
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