Distinguish between bod & cod
WebDec 28, 2015 · 2. DEFINATION ( B.O.D) Biochemical oxygen demand (BOD) is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a … WebBOD is the amount of oxygen the "bugs" demand during the five day test. it is the amount of dissolved oxygen removed from the sample during the test. The BOD is the difference between the dissolved oxygen measured before the test and the dissolved oxygen left after five days. BOD (mg/L) = DO(mg/L) Initial - DO(mg/L) Final. BOD (mg/L) = 8.1 mg/L ...
Distinguish between bod & cod
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WebJun 19, 2015 · COD is the amount of oxygen required to chemically breakdown the pollutants. Whereas BOD is the amount of oxygen required to do this biologically through micro-organisms. There is a strong correlation between COD and BOD, however COD analysis is a much faster and more accurate method. Clean Water. WebSep 12, 2024 · The dissolved oxygen readings are usually in parts per million (ppm). Higher BOD indicates more oxygen is required, which is less for oxygen-demanding species to feed on, and signifies lower water quality. Inversely, low BOD means less oxygen is being removed from water, so water is generally purer.
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 … WebJun 7, 2024 · Test Procedure. BOD: BOD is determined by incubating a sealed water under specific temperature sample for five days and …
WebDifference between BOD and COD. BOD. COD. BOD is a biological oxidation process. COD is a chemical oxidation process. BOD is performed by aerobic organisms. COD is performed by chemical reagents. BOD is … WebSep 26, 2024 · Typically, the average BOD result is divided by the average COD result to find a "conversion factor" between the two parameters. One would then multiply their COD results by this factor to estimate BOD. COD values are almost always higher than BOD values for the same sample. As a result, the multiplication factor will usually be less than …
WebFeb 3, 2024 · 0. Biochemical oxygen demand (BOD) is a way to assess the amount of oxygen required for aerobic microorganisms to decompose the organic material in a sample of water over a specific time frame. It is the oxygen uptake demand of a source of water. Carbonaceous biochemical oxygen demand (CBOD) is the same method as BOD, but …
WebAug 7, 2024 · The gas demand can also be defined using the daily cooking times. The gas consumption per person and meal lies between 150 and 300 liter biogas. For one liter water to be cooked 30-40 l biogas, for 1/2 kg rice 120-140 l and for 1/2 kg legumes 160-190 l are required. What is the difference between BOD and COD in wastewater? tni purnaWebSample Calculations for BOD BOD T = BOD u (1 – e-KT) K T = K 20 (1.047Temp. – 20) Where, BOD u is ultimate BOD Question : The BOD 5 of a waste water is determined to be 150mg/l at 200C. The K value is known to be 0.23 per day. What would be the BOD 8 be if the test were run at 150C ? tn-i plusWebNov 10, 2015 · The chemical oxygen demand (COD) test is commonly used to indirectly measure the amount of organic compounds in water. Most applications of COD determine the amount of organic pollutants found in … tni radio nunavikWeb• The main difference between BOD and COD is that BOD is the amount of oxygen that is consumed by bacteria while decomposing organic matter under aerobic conditions. • … tni organizationWebBiochemical Oxygen Demand (BOD) BOD is the abbreviation of biochemical oxygen demand, which defines the amount of dissolved oxygen used by aerobic organisms … t niranjan reddyWebBiochemical oxygen demand (BOD) is the amount of oxygen microorganisms require to break down organic materials. In contrast, chemical oxygen demand (COD) is the amount of oxygen required to break down the organic material via oxidation. Read: Biological … tni programmWebThe fundamental distinction between BOD and COD is that BOD refers to the quantity of oxygen consumed by bacteria during the aerobic decomposition of organic matter, … tni radio inuktitut