It is useful to assess strength of wastes which contain toxins and biologically resistant organic substances. Some water samples may contain substances that are difficult to.
Bod Lab Report Pdfcoffee Com
Environment Laboratory N1-B3c-49 Session 20042005.
. The ratio of BOD to COD is useful to assess the amenability of waste for biological treatment. Biochemical Oxygen Demand BOD Show More. Completely chemically oxidize the organic water constituents to inorganic end products.
So the sample turns blue in color. November 7th 2017 Date Report to be Submitted. Aquatic life requires dissolved oxygen in the water therefore eutrophication and ocean acidification are becoming huge problems in todays ecosystem.
Ec2206c4a group members 1. Biochemical Oxygen Demand BOD can be defined as the total oxygen amount that being uptake by bacteria from water when they oxidize organic matter and it was expressed in parts per million ppm or mgL Lee. 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.
BOD biochemical oxygen demand BOD is the traditional most widely used test to establish concentration of organic matter in wastewater samples ie relative strength. Immediately add 1 mL of the 50 sulfuric acid solution Reagent 3. 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.
Rinse down sides of. 1 points Cover page. 22 april 2020 group.
Label one clean empty BOD bottle KIO3 Standard. Continue the titration till. Yeomin Yoon Group Members.
BOD Lab Report IV. 4 Page 1 of 3. The respirometric method can be compared to the dilution method and standard methods are discussed in contrast to self-monitoring methods.
Nurfaiza adrina binti ahmad khir 2018693872 5. By using BOD3 the time of experiment can be shorten and the effect of experiment almost the same with BOD 5. After incubation titrate 50 ml of sample water with 0025N Sodium thiosulphate to a pale yellow color.
Each involves investigating the behaviour of a different part of the apparatus. R 2009 one of the most common approaches in quantifying water pollution is by BOD. Biochemical Oxygen Demand BOD is a test which requires a sample to have its dissolved oxygen DO content measured be incubated under controlled conditions 20C for 5 days hence BOD5 and then the DO is measured again.
1 WASTEWATER QUALITY ANALYSIS - DO BOD COD TOC ANALYSIS 1. Ratio of BOD to COD greater than or equal to 08 indicates that wastewater highly polluted and amenable to the biological treatment. This curve can then be used to determine the Ultimate BOD of the wastewater sample and the rate constant for its decay.
Siti aisyah binti abd malik 2018402684. Typical BOD 5 values are 110-400 mgL for raw wastewater 5-15 mgL for effluent and 0 for an unpolluted river. Biochemical oxygen demand BOD is defined as the amount of oxygen required by.
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. 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. Biochemical oxygen demand BOD Bacteria placed in contact with organic material will utilize it as a food source.
In this utilization the organic material will eventually be oxidized to stable end products such as CO2 and water. Group Lab Report 2 Measurements of BOD and COD By Team 1 Professor. Keep the bottle in BOD incubator for 5days of incubation.
Biochemical oxygen demand bod date of experiment. COD is an important rapidly measured variable for the approximate determination of the organic matter content of water samples. Carefully add 10 mL of standard potassium iodate 000167 M 001N from an A grade pipette or equivalent.
The experiment can be broken down into three sub-experiments which have their own methodologies and conclusions. BOD is based on the principle that if sufficient oxygen is available aerobic biological decomposition ie stabilization of organic waste by microorganisms will continue until all waste is consumed. Then add 2ml of starch solution.
Depending on the type of water the BOD biodegradability in 5 days expressed as ppm O2 from 05 up to 3 times the PV as ppm O2 and for most waters a value of 15 can be applied. Temperature of water DVTime of oxygen depletion By oxygen Indicator Intro. November 21 st 2017 Introduction 1.
The experiment is conducted by first placing a. Since the average BOD3 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 been polluted. Nabilah binti md zin 2018694072 4.
The lab report will be submitted in laboratory itself. 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. INTRODUCTION The chemical oxygen demand COD is the amount of oxygen consumed to.
Dissolved oxygen is an important requirement for the organisms to live on and. All reports should strictly follow this outline NameEntry noGroup no. 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.
Manual calculator and lab note book. The BOD of wastewater must be measured throughout the treatment process to ensure that the water body it is being discharged into will maintain acceptable DO levels and the ecosystem can survive. Rami Al Cheikh Arwa Alsaadi Larry Barrientos and Jacob Blackmon Date Experiment Performed.
Fatin arifa binti mansor 2018264884 3. 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. When titrating be certain that the burette is clean and free of air bubbles.
Open-ended lab report title of experiment. Biochemical oxygen demand or BOD is a chemical procedure for determining the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over. Why the value of COD increases when the amount of pollutant increased in surface water.
I am about to start writing a fairly important lab-report and have a few questions about structure. The drop in DO is the measure of BOD5. 1 Compare BOD and COD.
Experiment Lab 2A-6ENV Wastewater Quality Analysis Location. Ainatul-fatima binti md murozi 2018438002 2. Title experiment date group member names and entry no.
The experiment was performed successfully and COD values have been determined in the above table. Add approximately 15 mL of Milli-Q water and a stir bar.
Experiment 4 Chemical Oxygen Demand Experiment 5 Biochemical Oxygen Demand Objective To Determine Biochemical Oxygen Demand Of The Given Unknown Water Course Hero
Lab Report 4 Final 1 Objective This Experiment Was Conducted To Measure The Five Day Biochemical Oxygen Demand Bod5 Of Samples Of Raw Wastewater Course Hero
Science Fair Notebook Log Book Science Fair Homeschool Science Experiments High School Science Projects
Lab Report 4 Final 1 Objective This Experiment Was Conducted To Measure The Five Day Biochemical Oxygen Demand Bod5 Of Samples Of Raw Wastewater Course Hero
Biological Oxygen Demand Lab Analysis And Background
Pin On Princess
Biochemical Oxygen Demand Bod Level 2 Fakulti Kejuruteraan Awam Ecw 568 Environmental Studocu
Bod Lab Report Level 2 Warning Tt Undefined Function 32 Environmental Engineering Laboratory Studocu
File Brandon S Amazing Apes