COD stands for:
Chemical Oxygen Demand (COD) Explained
The question asks for the full form of the acronym COD. Acronyms are often used as abbreviations for technical terms.
Let's look at the provided options:
- Chlorine Oxygen Demand
- Calcium Oxygen Demand
- Clean Oxygen Demand
- Chemical Oxygen Demand
The correct full form for COD in environmental science and water quality testing is Chemical Oxygen Demand.
Chemical Oxygen Demand (COD) is a measure of the total quantity of oxygen required to oxidize all organic and inorganic substances in a water sample. It is widely used to measure the amount of pollution in water bodies, wastewater, and industrial effluents.
Therefore, the acronym COD stands for Chemical Oxygen Demand.
Important Questions from Quality and Characteristics of Sewage
Bosco has developed the following equation:
K = K’ + \(\frac{\nu}{H}\)η
Here, v = average velocity of the river stream, H = average depth of the river, and η = bed activity coefficient of the river.
In this equation:
High COD to BOD ratio of an organic pollutant represents
Consider the following statements:
1. Ammonia nitrogen is a measure of nitrogen present as ammonium hydroxide and ammonium salts. It will progressively decrease as sewage gets treated.
2. Organic nitrogen is the total nitrogenous matter in sewages excepting that present as ammonia nitrogen, nitrites and nitrates. It becomes ammonia in anaerobic decomposition and nitrites or nitrates in aerobic decomposition.
Which of the above statements is/are correct?A rapid test to indicate the intensity of pollution of water is-
Imhoff cone is used to measure-
