bod experiment lab report

Download View Lab Report Part B Bod Full as PDF for free. The objectives of this lab are to.

Biological Oxygen Demand Lab Analysis And Background

The DO readings are usually in parts per million ppm.

. Week 6 - Friction - lab report. This BOD concentration was used to calculate the UBOD which is 552 mgLThese values were obtained using the 200 mL dilution. This test takes much time and does not provide more information thats why another test ie COD chemical oxygen demand test is applied which is a short term test and provide more information.

So that you can avoid the formation of air bubbles. This experiment was conducted to measure the concentration of Biochemical Oxygen Demand BOD in the water sample from three different locations which is raw sewage secondary effluent and final effluent. 1 Laboratory Report Experiment 6 Biochemical Oxygen Demand Group 1 Jonathan Damora Tuesday March 11 2014 2.

BOD stands for Biochemical Oxygen Demand is the amount of oxygen required for bacteria to decompose biodegradable organic matter at certain temperature for a specific period of time. BOD is determined by incubating the BOD bottle for 5 days in 20 degree Celsius and getting the results through a dissolved oxygen meter whereas COD is determined by putting the vials which contains the water sample with a strong oxidant such as sulfuric acid in a preheated reactor at around 150 degree Celsius for 2 hours Zytner2020. 1 points Cover page.

Due to this fact even if the overall COD is low and the BOD is high the BOD would still be less than the COD because the BOD can never be more than the COD. Biochemical Oxygen Demand BOD The amount of oxygen required by the bacteria while stabilizing decomposable organic matter under aerobic conditions. Add 2ml of manganese sulfate to the BOD bottle carefully by inserting the pipette just below the surface of water.

Manual calculator and lab note book. Week 12 - Density AND Archimedes. It is most commonly expressed in milligrams of oxygen consumed per liter of sample during 5 days BOD 5 of incubation at 20C and is often used as a robust surrogate of the degree of organic pollution of water.

Journal of Environmental and Ecological Chemistry. Decomposable means that organic matter can serve as food for the bacteria and energy is derived from its oxidation. This was accomplished by measuring the difference between the initial and final dissolved oxygen DO concentration in each sample after five days.

2 Purpose The purpose of thisexperimentisto performa Biochemical OxygenDemandtestonprimaryclarifier effluentfromawastewatertreatmentplanttodetermine. Pauer and James R. Week13 - Sound Waves - lab report.

The standard method for measuring BOD 5. 2218 reviews on out of 13. The common BOD test lasts five days.

It is used mainly in determination of pollution strength of water in terms of requirement of oxygen when this wastewater is discharged into water bodies. CONCLUSIONS After completing the experiment it can be concluded that the average BOD 5for the Mahoning River is 377 mgL. Biological Oxygen Demand Lab Analysis and Background 1.

BOD is basically used to determine the total oxygen demanded or the total oxygen by the microorganisms present in the water to decompose the organic matter. Biochemical Oxygen Demand BOD or the demand of oxygen by bacteria is a widely used parameter for biodegradable organic matter in the aquatic environment. BACKGROUND The Biochemical Oxygen Demand BOD test is one of the most common measures of organic matter in wastewater and contaminated natural waters.

It is not a precise quantitative test although it is widely used as an indication of the organic quality of water. A known volume of sample has its initial DO content recorded and after a five day incubation period at 20C the sample is removed from the incubator and the final DO content is taken. A common method in measuring BOD analyzes the difference in dissolved oxygen from a sample for five days.

Week 2 phy lab report. Math for intro physics. 1 OBJECTIVE This experiment was conducted to measure the five day biochemical oxygen demand BOD5 of samples of raw wastewater treated wastewater and Mānoa Stream water.

Carefully fill a BOD bottle with sample water without making air bubbles. Biochemical oxygen demand is a measure of the quantity of oxygen used by. This five-day standard dates back to the inception of the test in the late 19 th century and the belief that it took five days for the River Thames to.

Nurfaiza adrina binti ahmad khir 2018693872 5. 1 determine the BOD of a standard glucose glutamic acid sample and 2 determine the BOD of a domestic greywater sample. A samples COD should be much higher than the BOD for the same sample because BOD is a subset of COD.

116 centripetal force - lab report. Collect the water sample from a pond. Hence the objective of the experiment was achieved.

All lab data will be entered on a sheet of a paper and checked with a Teaching Assistant before attaching it with the lab report. Discussion - lab report. Add 2 mL of alkali-iodide-azide reagent in the same manner.

View BOD_LAB_REPORT_NEWpdf from ENGG 3590 at University of Guelph. The study was carried out for a specified period. Week 4 - Motion OF A BODY IN FREE FALL.

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