Water Pollution – Vincivilworld

What Biochemical Oxygen Demand (BOD) Measures?

29 October 2022 Jefy Environmental Engineering, Water Pollution

Biochemical Oxygen Demand or BOD gives a measure of the amount of oxygen that the microbes utilize to degrade organic materials in a water body. Also, BOD measures the chemical oxidation of inorganic materials i.e., the removal of oxygen from water via a chemical reaction. The BOD value is generally expressed in milligrams of oxygen used per litre of the sample over a 5-day incubation period at 20 °C, and it is frequently used as an estimate of the degree of organic pollution in water. The reduction of BOD is used in evaluating the efficacy of wastewater treatment systems.

What is Tertiary Wastewater Treatment? – Top Physicochemical Methods Explained

26 July 2021 Jefy Environmental Engineering, Water Pollution

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. Most methods include physicochemical treatments such as coagulation, filtration, organics adsorption on activated carbon, reverse osmosis, and further disinfection.

What is Sewage? – Sources, Treatment and Quality Indicators

11 July 2021 Jefy Environmental Engineering, Water Pollution

Sewage is a type of wastewater that enters the sewerage system from household bathrooms, toilets, kitchens, laundries and drains. It consists of approximately 99.6% water and 0.4% of biodegradable pollutants and small solid particles

Primary Treatment for Wastewater – Process and Details

11 July 2021 Jefy Environmental Engineering, Water Pollution

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.

Chemical Oxygen Demand and Total Organic Carbon Analysis

6 July 2021 Jefy Environmental Engineering, Water Pollution

Chemical Oxygen Demand and Total Organic Carbon are widely used analysis methods in water treatment plants, petrochemicals and drinking water treatment. Chemical Oxygen Demand evaluates all chemically oxidizable components. It can be directly linked to the effluent’s actual oxygen requirement on releasing into the environment.

Constructed Wetlands for Wastewater Treatment

6 July 2021 Jefy Environmental Engineering, Water Pollution

Constructed wetlands are manmade wetlands that find applications in land reclamation after mining and compensating for natural areas lost to development. They operate as a biofilter and remove a variety of pollutants from the water such as organic substances, fertilisers, pathogens, and heavy metals. It can also eradicate pathogens (bacteria, viruses, protozoa, and helminths) to a certain extent.

Water Pollution – Effects and Causes

6 July 2021 Jefy Environmental Engineering, Water Pollution

Water pollution has become a pressing problem all over the globe. All water bodies have an innate ability to cleanse themselves. They can easily handle small volumes of pollutants and degrade them with the help of dissolved oxygen and the microbial population residing there. However, every day, 2 million tons of sewage, industrial, and agricultural waste reaches water bodies all over the world

Eutrophication – Definition, Causes, Effects and Control

5 July 2021 Jefy Environmental Engineering, Water Pollution

Eutrophication is a severe environmental concern because it frequently leads to deterioration of water quality and dissolved oxygen depletion in the water bodies. Eutrophic waters can eventually turn into “dead zones” that can not support life.