Answered: A BOD Test is made for awastewater…

A BOD Test is made for awastewater sample at (20°C). BOD after one day is (50 mg/L), and (150 mg/L) after five days. calculate BOD of such sample after Incubation for (7 days) at (20°C)?

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.32P

See similar textbooks

Related questions

Q: Give 2 examples of how water quality is linked to hydrological parameters

A: The various hydrological parameters are as follows: 1. Groundwater volume and recession. 2.…

Q: Relate the Lesotho water act to the UN watercourse convention

A: The Lesotho Highlands Water Project (LHWP) is an agreement between the governments of the Kingdom of…

Q: The moisture content of soil in the root zone of an agricultural crop at certain stage is found to…

A: Given data- Moisture content=0.05, Field capacity=0.15 root zone depth=1.1 m Consumptive use=2.5…

Q: List down the different the methods of “Distribution of Water” employed in a “Water Works Project”…

A: Following are the methods of distribution of water: 1) Gravity method : Water is distributed…

Q: The gravity wall shown has been designed to resist overturning and sliding. The total vertical force…

Q: Given the following consolidation test, plot the e-log p relationship and determine if the clay…

A: The curve of the trend shows that it is an overconsolidated curve

Q: In titration for alkalinity (5.0 ml) of 0.02N Sulfuric acid is used to reach the phenolphthalein end…

A: Volume of H2SO4 required for phenolphthalein end point, V1 = 5mlVolume of H2SO4 required for green…

Q: Mass of dish coated with petroleum jelly = 11.30 g %3D Mass of dish coated with petroleum jelly…

A: Mass of dry soil = 32.81 - 11.3 = 21.51 g Volume of dry soil = 12.83 cm3 = 12.83 cc

Q: 13 The culturable command area for a distributed channel is 20,000 hectares. Wheat is grown in the…

A: Given- CCA=20,000 ha I=50% kor period=30 days kor water depth=120 mm outlet discharge=?

Q: A 25 g/l solution of a fluorescent tracer was discharged into a stream at a constant rate of 10…

Q: Problem- 5, The evapotranspiration rate from the land and the oceans are observed as 82,000 km3/year…

A: Given- The evapotranspiration rate from the land and the oceans = 82,000 km3/year and 495000…

Q: 3 A contractor needs 440 m of aggregate base for a highway construction project. It will be…

Q: Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil…

A: Given data- Existing water content WP = 18%=0.18, Field capacity of the soil FC= 28%=0.28, The…

Q: 1. Provide preliminary dam design. A stable gravity dam cross-section must be designed in terms of…

A: Since the question comprises of a number of subparts, the solution for first three subparts is as…

Q: Water Resource

A: Given: Period of measurement = 1 year Area of lake = 0.8 km2 Precipitation, P = 1400 mm Surface…

Q: The intensity of irrigation is 75% of cultivable area of 6000 ha. The discharge required for crops…

A: Given data- Cultivable area=6000 ha, Discharge in different weathers = 2.4 m3/s, 2.0 m3/s, 2.8 m3/s,…

Q: What is irrigation?

A: Given data Irrigation engineering To be discussed What is Irrigation

Q: the role of a quantity surveyor in ensuring sustainable development in hydro-electric project.

A: Surveying : Surveying or land surveying is the practice, profession, art, and science of determining…

Q: Cost of building lake homs dam?

A: Solution: The lake homs dam is built in Syria that is built in 1300 BC. The total capacity of the…

Q: A municipal wastewater treatment plant discharges a maximum flow rate of (20000 m³/ day), a BOD, @…

Q: A concrete gravity dam section is shown in the figure. Assuming unit weight of water as 10 kN/m³ and…

Q: What is hydrological risk

A: Hydrological risk : 1. Hydrological risk, in particular the risk of having either too much or too…

Q: Calculate the amount of irrigation water for the field.

A: Given:Pan evaporation=100 mmeffective rainfall=20 mmcrop coefficient=0.4irrigation efficiency=0.5

Q: Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil…

Q: Lebron James noticed that the void ratio of a given soil is three times that of another soil and the…

A: Given Data : * Height of capillary rise ( h1) = 40.58cm for soil 1. * e1 = 3e2 * (D10)1=0.5…

Q: :Find (D.O) and the (Deficit) for the stream (B), If: Stream Q (m³/s) T (°C) A C Temperature 16 17…

A: DO and deficit data for stream A and CWe have to find the D.O and deficit for the stream B.

Q: If the channel index at an irrigation outlet is 5/3, "setting" of an orifice type outlet in order to…

A: Given data-Channel Index=5/3,we have to calculate The setting of an orifice-type irrigation outlet…

Q: act say

A: In water act,for shared water resources it is required to establish bodies in order to implement the…

Q: Question Water Requirement of Crops What will be the delta for a crop when its duty is 864 on the…

A: Given- Duty D=864 ha/cumec, Base period B=120 days, It is needed to find the delta for the crop.

Q: What efforts did Lord Curzon make to improve the irrigation system and railway system?

A: Lord Curzon: Lord Curzon was a Viceroy of India who developed the economy of the country. Lord…

Q: Cull percent is calculated on every plot sampled in a stand. True False

A: question is asking about whether we calculate cull percentage on every sample plot.

Q: An agricultural land of 486 ha is to be irrigated for a crop having delta as 120 cm and 17 cm of…

A: Given data- Area A=486 ha, Delta =120 cm, 17 cm rainfall, Discharge Q=2.2 cumecs, Conveyance losses…

Q: The sleeper density of a BG track is (n+6). If the length of one BG rail is 13 m then find the…

Q: Restate - What are the benefits and drawbacks of damming a River?

A: Damming a river refers to the process of constructing a barrier or a wall across a flowing river to…

Q: Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil…

A: Given- Existing moisture content w=18%, Field capacity FC=28%, Root zone depth d=70 cm, Density of…

Q: Q.4 The discharge capacity required at the outlet to irrigate 2500 ha of sugarcane having a kor…

A: Given- Area A=2500 ha, Kor depth d=15 cm=0.15 m, Kor period B=30 days It is needed to find the…

Q: A certain crop is grown in an area of 3000 ha which is fed by a canal system. The data is given as…

Concept explainers

Fluid Materials

In general terms, anything that flows can be termed as a fluid. In other words, a fluid is any substance that cannot resist shear forces and deforms continuously under the application of external shear forces. Fluid materials differ completely from solid materials such as metals and alloys. For instance, if we consider two infinitesimally small cross-sectional areas of fluid materials and solid materials, and apply shear forces to these elements, both the elements will undergo deformation. Upon releasing the shear force, the element of the solid materials will regain its original orientation, but the element of the fluid materials will keep on deforming continuously under the action of the shear force.

Question

Dams and water resources شخذ

A BOD Test is made for awastewater sample at (20°C). BOD after one day is (50
mg/L), and (150 mg/L) after five days. calculate BOD of such sample after Incubation
for (7 days) at (20°C)?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given

VIEW

Step 2: Calculate BOD after 7 days

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Suppose the estimated BOD of an influent sample is expected to be 150 mg/L and the dissolved oxygen concentration of the oxygen saturated dilution water used in the BOD test is 8.5 mg/L. If you are using a 300 mL BOD bottle, estimate the maximum and minimum amount of sample you would add to the BOD bottle to ensure satisfactory test results. NOTE: Acceptable BOD test should comply with the two essential criteria: DO final ≥ 2 mg/L and DO initial – DO final ≥ 2 mg/L. Assume that the dilution water is the only source of oxygen.
Please fine the overall density for me ple
Wastewater Engineering civil engineering (10)
Show solution 6
Five-days BOD of a 10% diluted sample having Do = 6.7 mg/l, D = 2 mg/l and consumption of oxygen in blank = 0.5 mg/l, will be A 22 mg/l B 42 mg/l c 62 mg/l D 82 mg/l
Determine the 5-day BOD (in mg/L) for a 15 ml sample that is diluted with dilution water to a total volume of 300 ml when the initial DO concentration is 8 mg/l and after 5 days, has been reduced to 2 mg/l
If 19.3mL of the standardized Na2S203 solution was used in determining the DO, what is the DO concentration of the water sample? 47 O 4.3232mg/L O 35.8208mg/L O 2.0072mg/L O 23.7776mg/L
Five-days BOD of a 10% diluted sample having Do = 6.7 mg/l, Ds = 2 mg/l and consumption of oxygen in blank = 0.5 mg/l, will be
Q2. A ring infiltrometer (inside area is 962 cm²) test was made on a soil with the results shown in the table below. Elapsed 10 20 30 60 90 150 time (Min) Wat.Vol 300 650 1190 1950 2500 3350 3900 4600 added since start c cubk cenembcr Determine the Horton's Infiltration equation.
Find BOD5 @ 20degree and BOD3 @ 30 degree
Complete Answer, please. Thank you :)
1.Determine the 5-day BOD (in mg/L) for a 15 ml sample that is diluted with dilution water to a total volume of 300 ml when the initial DO concentration is 8 mg/l and after 5 days, has been reduced to 2 mg/1 2.A 100-ml of water sample has an initial DO level of 2 mg/L, and after 5 days of incubation decreased to 1.8 mg/L. Determine the BDO of the water.