Advanced Biological, Physical, and Chemical Treatment of Waste Activated Sludge
Recently, research efforts aiming to improve energy efficiency of wastewater treatment processes for large centralized wastewater treatment plants (WWTPs) have been increasing. Global warming impacts, energy sustainability, and biosolids generation are among several key drivers towards the establishment of energy-efficient WWTPs. WWTPs have been recognized as major contributors of greenhouse gas emissions as these are significant energy consumers in the industrialized world. The quantity of biosolids or excess waste activated sludge produced by WWTP will increase in the future due to population growth and this pose environmental concerns and solid waste disposal issues. Due to limited capacity of landfill sites, more stringent environmental legislation, and air pollution from incineration sites, there is a need to rethink the conventional way of dealing with wastewater and the sludge production that comes with it. This book provides an overview of advanced biological, physical and chemical treatment with the aim of reducing the volume of sewage sludge.
- Provides a comprehensive list of processes aiming at reducing the volume of sewage sludge and increasing biogas production from waste activated sludge.
- Includes clear process flowsheet showing how the process is modified compared to the conventional waste activated sludge process.
- Provides current technologies applied on full scale plant as well as methods still under investigation at laboratory scale.
- Offers data from pilot scale experience of these processes
Chapter One: Conventional Waste Activated Sludge Process
Chapter Two: Biological Treatment of Sludge: Application of the AB Process to Municipal Wastewater
Chapter Three: Biological Treatment of Sludge: Application of the AB process to Industrial Wastewater
Chapter Four: Thermal/Biological Treatment of Sludge
Chapter Five: Thermal/Alkaline Treatment of Sludge
Chapter Six: Mechanical Treatment of Sludge
Chapter Seven: Chemical Treatment of Sludge
Chapter Eight: Physical Treatment of Sludge: Application of Utlrasound
Chapter Nine: Physico-chemical Treatment: Application of Alkaline and Ultrasonic Pre-treatment of Sewage Sludge
Chapter Ten: Physico-chemical Treatment: Application of Ozone and Ultrasonic Pre-treatment of Sewage Sludge
Chapter Eleven: Physico-chemical Treatment: Application of Ozone, Ultrasonic, and Alkaline Post-treatment of Sewage Sludge
Chapter Twelve: Physio-chemical Treatment: Application of Ozone, Ultrasonic and Alkaline Post-Treatment of Sewage Sludge