"Empowering Minds, Engineering the Future
Biochemical Oxygen Demand is a term all of us come across in most of the articles on water pollution. In this blog, I will walk you through Biochemical Oxygen Demand, its significance and measurement. Before delving into Biochemical Oxygen Demand we should first understand the concept of Dissolved Oxygen (DO), its significance and measurement.
Tertiary wastewater treatment, also known as advanced wastewater treatment, is the third step of wastewater treatment. After secondary treatment, tertiary treatment of effluent entails several extra procedures to minimise organics, turbidity, nitrogen, phosphorus, metals, and pathogens. Tertiary treatment of wastewater makes it ready for reuse. Some examples of reuse include:
Globally, 44% of sewage is not safely treated, according to UN-Water 2021. Releasing untreated sewage into water bodies pose a great threat to humans as well as the environment. But, how do we understand the quality of sewage and the number of pollutants in it? This blog let me walk you through the basics of sewage, its sources, types, and quality indicators.
Primary treatment for wastewater involves temporarily storing sewage in a calm basin where heavy materials sink and oil, grease, and lighter solids float to the top. Wastewater reaching a treatment plant through pipes first undergoes primary treatment irrespective of its source.
Secondary treatment of wastewater removes the dissolved organic matter that escapes primary treatment and eliminates a higher percentage of suspended solids. In this blog, I will walk you through various biological methods used in the secondary treatment of wastewater.
Activated Sludge Process is a globally used wastewater treatment technique. In the previous blogs, I had shown you the various secondary wastewater treatment techniques. In this blog, we will dig deep into this widely used technique of activated sludge process, its configuration, process control and aeration methods.
Water Pollutants kill more people every year than from all forms of violence including war, according to the UNDESA. Every day, 2 million tons of sewage, industrial, and agricultural waste reaches water bodies all over the world. With the growth of the human population, industrial and agricultural activities the hydrological cycle got disrupted. As a result, declining water quality has become a global issue of concern.