Isazadeh, Siavash

Dr. Siavash Isazadeh is Senior Reserach Scientist at American Water. Dr. Isazadeh has several years of academics and industrial research experiences in environmental microbiology, wastewater treatment, and water reuse. He has a track record of using molecular biology techniques such as metagenomics to integrated with fundamental, quantitative environmental engineering practices to develop new insights and solutions to water and wastewater and community health. In One Health framework, Dr. Isazadeh collaborates in an international project with MIT and Center of Molecular Dynamics of Nepal to investigate the antibiotic resistance genes and bacteria dynamics in slum area of Katmandu valley, Nepal. He also holds a professional engineering license at the state of Delaware.

Titles from this speaker

Description: Factors Contributing to Cryptosporidium and Giardia Variability for Future Direct...

Factors Contributing to Cryptosporidium and Giardia Variability for Future Direct Potable Reuse Applications

Abstract

Investigating the fate of pathogenic protozoa and their reduction in wastewater treatment units is of a great interest in helping to define treatment goals for direct and indirect potable water use. This study explores the Cryptosporidium and Giardia log removal variations in wastewater treatment plants (WWTPs) with different conditions (i.e., seasonal, wastewater characteristic and process operational parameters). To investigate the impact of these variables, a year-long field study was conducted in 5 local WWTPs. Protozoa log reduction in these facilities ranged from 1.5 to 3. Higher protozoa log removal was observed with higher SRT (>15days) and higher HRT (>10 days). The log removal between influents and secondary effluents in the field study was in the higher end of the reported values in the literature for both Cryptosporidium and Giardia. However, both literature surveys and field study for comparison between trickling filter and activated sludge units indicated a higher log reduction of Cryptosporidium in the filtration units.

SpeakerIsazadeh, Siavash

Presentation time

10:50:00

11:10:00

Session time

10:30:00

11:30:00

SessionKilling Me Softly: Disinfection for Pathogen Control

Session number522

TopicDisinfection and Public Health, Research and Innovation, Water Reuse and Reclamation

Author(s)

S. IsazadehS. IsazadehZ. BukhariD. TsafackH. D Bhoombla