bod experiment lab report

By using BOD 3 the time of experiment can be shorten and the effect of experiment almost the same with BOD 5. Some water samples may contain substances that are difficult to oxidize.

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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.

. Completely chemically oxidize the organic water constituents to inorganic end products. 1 OBJECTIVE This experiment was conducted to measure the five day biochemical oxygen demand BOD 5 of samples of raw wastewater treated wastewater and Mānoa Stream waterThis was accomplished by measuring the difference between the initial and final dissolved oxygen DO concentration in each sample after five days. BOD Primer Page 2 of 61 Preface The determination of biochemical oxygen demand is always a topic of discussion with regard to the method and its applicability.

CODBOD 15 so we can also find BOD from here which comes out to be 17467mgL for 1 st sample and 120 mgL for 2 nd sample. The lab report will be submitted in laboratory itself. This curve can then be used to determine the Ultimate BOD of the wastewater sample and the rate constant for its.

Biological Oxygen Demand Lab Analysis and Background. Biochemical oxygen demand BOD is defined as the amount of oxygen required by. The common BOD test lasts five days.

In this experiment we will try to find the temperature that organisms thrive best in on an organism dependent on oxygen and three types of water. Add 2ml of manganese sulfate to the BOD bottle carefully by inserting the pipette just below the surface of water. Five-Day Biochemical Oxygen Demand 112003 USGS TWRI Book 9A7 Third Edition 6BOD 701 EQUIPMENT AND SUPPLIES Table 70-1 lists equipment and supplies commonly used in the BOD 5 test using amperometric determination of DO.

Proves that the temperature of the water does affect how much dissolved oxygen a body of water can hold. Environment Laboratory N1-B3c-49 Session 20042005. When titrating be certain that the burette is clean and free of air bubbles.

DETERMINATION OF DISSOLVED OXYGEN BY WINKLER TITRATION 1. Measuring biochemical oxygen demand requires taking two measurements. Carefully fill a BOD bottle with sample water without making air bubbles.

Since the average BOD 3 obtained from experiment is 16833 mgL so that it can be concluded that the waste water from water plant behind Tasik Kemajuan Tasik G3 UTHM has. - BOD Lab Report - Free download as Word Doc doc docx PDF File pdf Text File txt or read online for free. Since the average BOD3 obtained from experiment is 16833 mgL so that it can be concluded.

BOD Lab Report IV. 1 Compare BOD and COD. School of Civil and Environmental Engineering.

The respirometric method can be compared to the dilution method and standard methods are discussed in contrast to self-monitoring methods. However in this experiment BOD 3 is used instead of BOD 5. In this experiment we will try to find the temperature that organisms thrive best in on an organism dependent on oxygen and three types of water.

1 WASTEWATER QUALITY ANALYSIS - DO BOD COD TOC ANALYSIS 1. BOD Testing Biochemical Oxygen Demand Introduction BOD is an empirical test ex APHA which measures the molecular oxygen used by bacteria for the biochemical degradation of carbonaceous material hence carbonaceous BOD or CBOD the oxygen used to oxidise inorganic material such as sulphides and ferrous ion. Ratio of BOD to COD greater than or equal to 08 indicates that wastewater highly polluted and amenable to the biological treatment.

While BOD describes the biological oxidation capacity of a wastewater it is not a measure of the total potential oxidation of the organic compounds present in the. Temperature of water. All reports should strictly follow this outline NameEntry noGroup no.

COD is an important rapidly measured variable for the approximate determination of the organic matter content of water samples. By using BOD3 the time of experiment can be shorten and the effect of experiment almost the same with BOD 5. One is measured immediately for dissolved oxygen initial and the second is incubated in the lab for 5 days and then tested for the amount of dissolved oxygen remaining final.

Contoh expriment BOD. Bod Experiment Lab Report 2. The ratio of BOD to COD is useful to assess the amenability of waste for biological treatment.

While Biochemical Oxygen Demand is a common environmental procedure for determining the extent to which oxygen within a sample can support microbial life. The experiment was performed successfully and COD values have been determined in the above table. 12097 Environmental Chemistry of Boston Harbor IAP 2006 Lab 1.

So that you can avoid the formation of air bubbles. INTRODUCTION The chemical oxygen demand COD is the amount of oxygen consumed to. Background Knowledge of the dissolved oxygen O2 concentration in seawater is often necessary in environmental and marine science.

Therefore i t is used to measure the amount of certain type of organic water pollution BOD is calculated by keeping a sample of water containing a known amount of oxygen. The amount of oxygen taken up by the microorganisms that decompose the organic waste matter in wastewater is known as biological oxygen demand or biochemical oxygen demand. Biological oxygen demand is affected by the same factors that affect dissolved oxygen.

Biochemical Oxygen Demand BOD or the demand of oxygen by bacteria is a widely used parameter for biodegradable organic matter in the aquatic environment. Experiment Lab 2A-6ENV Wastewater Quality Analysis Location. For most people a complete understanding of the standard methods required to accurately complete critical wastewater analytical tests is not necessary.

1 points Cover page. It is useful to assess strength of wastes which contain toxins and biologically resistant organic substances. Unfortunately the data obtained during this.

Manual calculator and lab note book. 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. COD Lab Report full.

However a fundamental understanding of the theory behind and working knowledge of the basic procedures used for each test and the answers to commonly asked questions about each test can be a valuable tool for anyone involved in generating. The purpose of this experiment is to perform a Biochemical Oxygen Demand test on primary clarifier effluent from a wastewater treatment plant to determine a BOD versus time curve. The higher the temperature the less dissolved.

Senin 15 November 2021 Edit.

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