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

Ways of treating waste

One can treat waste in three ways in order of preference: Mechanically - Primary Biologically - Secondary Chemically - Tertiary From a broad perspective, these three ways can be further divided into the following ways: Physical: Sedimentation (Clarification) Screening Aeration Filtration Flotation and Skimming Degassification Equalization Chemical: Chlorination Ozonation Neutralization Coagulation Adsorption Ion Exchange Biological: … Continue reading Ways of treating waste