Kanchana has been working as an environmental engineer at a
consulting firm for over twenty-five years. Well-known for settling
disputes between his corporate clients before litigation must be
pursued, Kanchana often analyses technical data, particularly
distributions of solid particle pollution, presented by disputing
parties to help them reach a compromise on the cost of
environmental clean-up. For example, two parties may be separated
from one another by a strip of land; however, each party must
fiscally contribute in keeping the land free from pollutants.
One day, Kanchana was contacted by a journalist to talk about his
experiences at the firm. Kanchana spoke about how he often
encountered cases where companies did not accurately depict levels
of solid particle pollution occupying the companies’ respective
surroundings. Instead, technical experts, who are mostly engineers,
would misrepresent data in order to make it seem that minority
parties were responsible for a greater part of the contamination.
At the end of the interview, Kanchana emphasized the necessity of
engineers taking ownership and being honest about the presentation
of data.
In: Civil Engineering
In: Civil Engineering
List 3 factors that would affect dozer production. Give an example of a change to one of those factors that would affect production and explain how that change would increase or decrease production.
In: Civil Engineering
The shallow sandy aquifer (4 feet thickness) is contaminated with 1,2-XYZ (K oc = 20 L/kg) at an average soil concentration of 800 mg/kg. A batch soil washing device is designed to treat 1,100 kg of contaminated soil (f oc = 0.004) with 900 gallons of clean water. Find the concentration of 1,2-XYZ in water and in soil and water after (a) one wash, and, (b) two wash.
In: Civil Engineering
What are the possible reasons for the development of the fractures in the lithosphere?
Need explanation and step by step solution and without
plagrism
In: Civil Engineering
Topic: Technical Report "Retaining Wall Design"
(Note: Briefly discuss in your own words, 1-2 paragraphs minimum.)
1.) Prepare a technical report about the "Retaining Wall Design" types and installation procedures.
2.) Explain the importance of retaining walls as structural (foundation) elements and their construction.
Provide at least one additional source to support your response if using any.
In: Civil Engineering
Civil engineering- Water Engineering
Q. State and discuss 7 technical challenges faced in water distribution systems [14]
In: Civil Engineering
A community’s groundwater has been contaminated by perchloroethylene after years of operation of a dry-cleaning business. Groundwater supplies a spring that feeds a pond and stream and is also the source for a well. A local family relies on the well for their drinking water and regularly eats fish caught in the stream and pond. The concentration of perchloroethylene in the groundwater is found to be 80 mg/L, and the chronic oral RfD is 0.006 mg/kg/day.
a.) Assuming all exposure to perchloroethylene comes from consumption of fish and water, and that children and adults eat the same amount of fish on average per day, calculate the Estimated Exposure Dose (EED) for an adult and a child.
b.) What are the adult and child hazard ratios (HR) for this scenario? Interpret the results.
The average body weight of an adult is 70kg, the average body weight of a child is 10kg, and the amount of fish consumed is 6.5g/day.
In: Civil Engineering
What are the steps for applying the Ishikawa (fishbone) method?
In: Civil Engineering
why baseflow is necessary to be seperated from the hydro graph ? explain the different methods to seperate it
In: Civil Engineering
HOW DO YOU DETERMINE IF A SECTION IS COMPACT OR NON COMPACT ACCORDING TO SLENDERNESS LIMITS
In: Civil Engineering
What are the situations where time is called to be ‘at large’? In reference to construction contracts.
In: Civil Engineering
Describe briefly a conceptual model of the hydrological cycle. Include in your discussion reasons for conceptualisation of the hydrological cycle in the manner required for development of your model. (typing answer please)
In: Civil Engineering
How would you go about testing rainfall records to access their reliability? you can assume that other rainfall records are available both in the same region and within close regions
In: Civil Engineering
Produce a fully researched and referenced report (indicative
word range 2,250–2,500 words) for a client that explains a
particular system, type or design of an innovative modern method of
construction suitable for a new primary school.
Your report should:
• include a critical appraisal that evaluates the relative merits
of this method of construction over that of a more traditional type
of construction;
• address various environmental and sustainability issues.
Please state any assumptions you make in the report. Assumptions
can be made as to any specific type of facility, arrangements,
layout or size. Please ensure that you write in your own words and
that all sources are fully referenced.
Report guidance
The report could look at an offsite system of prefabricated
schools.
In: Civil Engineering