What is an STP plant and how does it work?
What is a Sewage Treatment Plant? Sewage treatment plants are wastewater treatment plants that treat sewage wastewater by breaking it down into a cleaner ‘effluent’ that can be returned back to nature in a safer, eco-friendly form. They help restore groundwater balance, curb diseases, and stop the degradation and pollution of the environment. The treated water can be used for non-potable purposes such as gardening, washing cars, construction, irrigation, and toilet flushing. How does a Sewage Treatment Plant work? A Sewage Treatment Plant process works in four phases – preliminary, primary, secondary, and tertiary treatment. · Preliminary treatment - This treatment process removes bigger materials like plastic bottles, tree branches, rags, wrappers, etc. · Primary treatment – This process occurs inside a sedimentation tank in which all the organic and inorganic solids settle to the bottom while the grease, oil, and lighter solids...