1. Improvement of Log Reduction Values Design Equations for Helminth Egg Management in Recycled Water
- Author
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Daryl P. Stevens, Vivek Daniel, Esmaeil Shahsavari, Arturo Aburto-Medina, Sarvesh K. Soni, Leadin S. Khudur, Basma Khallaf, Aravind Surapaneni, Jonathan Schmidt, Alexandra Keegan, Nicholas D. Crosbie, Judy Blackbeard, James Hampton, Dan Deere, Nick O’Connor, and Andrew S. Ball
- Subjects
helminth ,egg ,sewage ,log reduction value ,recycled water ,treatment ,Hydraulic engineering ,TC1-978 ,Water supply for domestic and industrial purposes ,TD201-500 - Abstract
Understanding and managing the risk posed by helminth eggs (HE) is a key concern for wastewater engineers and public health regulators. The treatment processes that produce recycled water from sewage at wastewater treatment plants (WWTPs) rely on achieving a defined log10 reduction value (LRV) in HE concentration during the production of recycled water from sewage to achieve the guideline concentration of ≤1.0 HE/L. The total concentration of HE in sewage reaches thousands of HE/L in developing countries and therefore, an LRV of 4.0 is generally accepted to achieve a safe concentration in recycled water, as this will meet the guideline value. However, in many developed countries with good sanitation and public health standards, the HE concentration in sewage is generally
- Published
- 2021
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