Investigation of Bromate Formation during Ozone-Biofiltration Treatment Processes for Potable Reuse Application
type: CreativeWork
description: Substantial population growth in addition to climate change has caused water scarcity in many regions. Consequently, as an essential component of water resource management, potable reuse of municipal wastewater has been taken into consideration. Potable reuse projects mainly employ multiple purification steps to provide effective inactivation of pathogens as well as organic and inorganic contaminants. Though conventional potable reuse treatment trains employ reverse osmosis (RO) as the main purification barrier, concentrate disposal, challenging requirements for influent water quality such as removing suspended solids and organic matter, and high capital and operation costs, limits the use of RO. However, as a non-membrane based alternative technology to RO, ozonation followed by biological activated carbon (BAC) or ozone/BAC is an effective treatment technology for eliminating organic matter from a variety of wastewater effluent streams through oxidation, biological and physical filtration. Additionally, ozone is a powerful oxidant used in water treatment to degrade contaminants of emerging concern (CECs) into less harmful moieties. Ozonation as a vital process in ozone /BAC system produces a high-quality effluent while reducing brine production and disposal and eliminates the potential health risks associated with waterborne pathogens and so, it is being widely adopted worldwide for water reuse applications. However, ozonation may produce disinfection by-products (DBPs) harmful to human health. Potentially carcinogenic bromate is a DBP formed during the ozonation of bromide-containing waters. In bromide containing water, especially above 50 μg/L, bromate formation becomes a major concern. To understand bromate formation, a comprehensive pilot-scale study of ozone/BAC was conducted at South Truckee Meadows Water Reclamation Facility (STMWRF) and Reno Stead Water Reclamation Facility (RSWRF). At STMWRF, five sampling events and a bromide spike experiment was conduct…
abstract: Substantial population growth in addition to climate change has caused water scarcity in many regions. Consequently, as an essential component of water resource management, potable reuse of municipal wastewater has been taken into consideration. Potable reuse projects mainly employ multiple purification steps to provide effective inactivation of pathogens as well as organic and inorganic contaminants. Though conventional potable reuse treatment trains employ reverse osmosis (RO) as the main purification barrier, concentrate disposal, challenging requirements for influent water quality such as removing suspended solids and organic matter, and high capital and operation costs, limits the use of RO. However, as a non-membrane based alternative technology to RO, ozonation followed by biological activated carbon (BAC) or ozone/BAC is an effective treatment technology for eliminating organic matter from a variety of wastewater effluent streams through oxidation, biological and physical filtration. Additionally, ozone is a powerful oxidant used in water treatment to degrade contaminants of emerging concern (CECs) into less harmful moieties. Ozonation as a vital process in ozone /BAC system produces a high-quality effluent while reducing brine production and disposal and eliminates the potential health risks associated with waterborne pathogens and so, it is being widely adopted worldwide for water reuse applications. However, ozonation may produce disinfection by-products (DBPs) harmful to human health. Potentially carcinogenic bromate is a DBP formed during the ozonation of bromide-containing waters. In bromide containing water, especially above 50 μg/L, bromate formation becomes a major concern. To understand bromate formation, a comprehensive pilot-scale study of ozone/BAC was conducted at South Truckee Meadows Water Reclamation Facility (STMWRF) and Reno Stead Water Reclamation Facility (RSWRF). At STMWRF, five sampling events and a bromide spike experiment was conduct…
author: Jahan, Begum Nazia
date published: 2020
date modified: 2026-07-27T21:47:03Z
provider: University of Nevada - Reno
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Nevada - Reno

PropertyValue
property ID: Handle
value: http://hdl.handle.net/11714/7683