Relation Between B.O.D (Biochemical Oxygen Demand) And Time At certain temperature, the rate of deoxygenation is assumed to be directly proportional to the amount of organic matter present in the sewage at that time. dLt / dt = - K.Lt .............(1) Relation Between B.O.D And Time [Note: Minus sign indicates that the with the passage of … Continue reading Relation Between B.O.D (Biochemical Oxygen Demand) And Time
Category: ENV
3 Difference Between Biochemical (B.O.D) and Chemical (C.O.D) Oxygen Demand
3 Difference Between B.O.D & C.O.D Following are the 3 differences between B.O.D (Biochemical oxygen demand) and C.O.D (Chemical oxygen demand) are described below: B.O.D (Biochemical oxygen demand)C.O.D (Chemical oxygen demand)1. The amount of oxygen required to carry out the biological decomposition of dissolved solids in sewage under aerobic conditions at standard temperature is … Continue reading 3 Difference Between Biochemical (B.O.D) and Chemical (C.O.D) Oxygen Demand
What do You Mean Natural Resource
The efficacy and stability of an ecosystem remain constant through the flow of energy and matter through it. Natural Resource We regard it as a natural resource, which is connected with the existence of this energy and material, the population and ecosystem. That is all the resources that can fulfill the physical and socio-cultural needs … Continue reading What do You Mean Natural Resource
Primary and Secondary Air Pollutants- And Their Examples
Air pollutants can also be broadly classified into two general groups- Primary air pollutants and secondary air pollutants. A. Primary Air Pollutants Primary air pollutants are those emitted directly from identifiable sources. Examples of primary air pollutants:1) Fine particles(less than 100 μ in diameter)2) Coarse particles (greater than 100 μ in diameter)3) Sulphur compounds 4) Oxides of … Continue reading Primary and Secondary Air Pollutants- And Their Examples
What is Smog
What is Smog Smog is a synchronously of two words smoke and fog, Smog can be of two types—Photochemical or coal-induced. • Photochemical Smog is caused by the interaction of some hydrocarbons and oxidants mainly (nitrogen oxides) under the influence of sunlight rise to dangerous peroxyacetyl nitrate (PAN). • Its main constituents are nitrogen oxides, PAN, hydrocarbons, … Continue reading What is Smog