Environmental science

 1. Make a scheme to describe the municipal wastewater treatment systems? Add the removal BOD and solids rates for each treatment. 

2. You have been asked to evaluate the ability of a horizontal –flow gravity grit chamber to remove a 0.015 cm diameter particle under winter and summer conditions. The particle density is 1.83 g/cm3 . The winter wastewater is 12 ºC. The summer wastewater temperature is 25 ºC. The depth of the grit chamber is 1.0 m. The detention time of the wastewater in the grit chamber is 60 s. 

3. The town of Camp Verde has been directed to upgrade its primary WWTP to a secondary plant that can meet an effluent standard of 25 mg/L BOD5 and 42 mg/L suspended solids. They have selected a completely mixed activated sludge system for the upgrade. The existing primary treatment has a BOD5 of 240 mg/L. Using the following assumptions, estimate the required volume of the aeration tank a. BOD5 of the effluent suspended solids is 50% of the allowable suspendedsolids concentration b. Growth constants values are estimated to be: Ks = 100 mg/L BOD5 , Kd = 0.025/d, µm = 10/day, Y= 0.8 mgVSS/mg BOD5 removed c. The design MLVSS is 3,000 mg/L

 4. Mention three differences between ground and surface water 

5. Draw the diagrams for surface water treatment and groundwater treatment. What are the two main differences between each treatment? 

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Order your essay today and save 25% with the discount code: THANKYOUPlace Order