WebJul 10, 2024 · BOD and COD measure the oxygen-depleting effects of waste contaminants. The exception to this standard is the measurement of Total Organic Carbon (TOC), which directly measures inorganic and organic carbon. Below is a summary of each parameter, what they measure, and general strengths and weaknesses. Analytical tools. BOD, … WebJun 7, 2024 · The COD is a quicker method of estimating the oxygen demand of a sample. The COD actually represents the ultimate BOD (BOD u) or the amount of dissolved oxygen to completely oxidize the organic …
What is chemical oxygen demand (COD)? - SciMed
WebAug 7, 2024 · COD measures the oxygen demand for the decomposition of both organic and inorganic materials in wastewater. This is the main difference between BOD and COD. What are the standard limits for BOD and COD? According to standards of Central Pollution Control Board, permissible value of BOD is 30 mg/l and COD is 250 mg/l. What is the … WebBOD exerted) increases with time, asymptotically approaching an ultimate value. The inverse of the BOD exerted curve would represent the BOD (degradable organics) remaining in the sample, that exponentially approaches zero. Figure 2: A theoretical representation of the biochemical oxygen demand of a wastewater as a function of time 2.1. in 4470 sncf pdf
Biochemical Oxygen Demand vs Chemical Oxygen Demand
WebCOD value is always greater than the BOD value of a particular water body. • BOD measures the oxygen demand for the decomposition of organic material by the microbes … WebDifference between BOD and COD. BOD. COD. BOD is a biological oxidation process. COD is a chemical oxidation process. BOD is … WebJun 17, 2024 · The COD of particulate slowly biodegradable substrates X S is defined as the difference of total BOD, calculated on the basis of BOD 5 raw unfiltered wastewater and the rate of biochemical degradation and the easily decomposed dissolved fraction: X … ina garten make ahead whipped cream recipe