"Empowering Minds, Engineering the Future
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.
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.
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.
Sustainable Cities are gaining popularity these days due to rapid urbanisation, population growth and pollution. Sustainable cities are those that are dedicated to achieve environmental, social and economic sustainability for existing populations.
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.
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:
Land pollution has disastrous effects, particularly on the survival of animals and humans, as well as in the quality of soil and water. Human activities have increasingly ruined and degraded land since the dawn of industrialization, producing diseases in humans and animals and limiting the capacity to support ecosystems and varied life forms.
Landfills are a regular occurrence all over the world, owing to the rising volume of trash generated by our homes, schools, offices, hospitals, and markets. The rising number of landfills around the world is largely due to increased urbanization and population growth rates.
The ozone layer is an area of the earth’s stratosphere that contains high levels of ozone (O3) and protects the planet from the sun’s harmful ultraviolet rays. It can absorb roughly 97-99 percent of the sun’s damaging UV radiation, which otherwise can kill life on the Earth.
Air Pollution meteorology deals with the meteorological processes near to the earth’s surface which consist of the impacts of meteorology on air pollutants and the effects of pollutants on meteorology. In this blog, I will show you some important terms related to air pollution meteorology, environmental stability and types of plumes.
