Chemical treatment of wastewater

"Pollution is nothing but the resources we are not harvesting. We allow them to disperse because we've been ignorant of their value." - R. Buckminster Fuller Chemicals are used during wastewater treatment in an array of processes to expedite disinfection. These chemical processes, which induce chemical reactions, are called chemical unit processes, and are used … Continue reading Chemical treatment of wastewater

Biological treatment of wastewater

"Don't forget that the flavors of wine and cheese depend upon the types of infecting microorganisms." - Martin H. Fischer Biological treatment aka secondary treatment: In wastewater treatment, the treatment process that follows primary treatment. It is used to remove the remaining organic solids that have not been removed in primary treatment together with the … Continue reading Biological treatment of wastewater

Aerobic treatment of wastewater

INTRODUCTION: Definition: It is any treatment process that uses aerobes to biodegrade or oxidise or remove the unwanted organic or inorganic compounds.  In the treatment of wastewaters, the processes can be divided into suspended growth processes (e.g. activated sludge process, Figure 6) or attached growth processes such as rotating biological contactors (Figure 7) or trickling … Continue reading Aerobic treatment of wastewater