Coagulation-flocculation-sedimentation, Mechanical Engineering

Assignment Help:

2. Assume that the river has been selected as the source of raw water for the 2.0mgd demand.

a. Surface water has low alkalinity, high turbidity. The distribution system is cast iron pipe. What's the concern with using alum (Al2(SO4)3) as the coagulant. What other chemical could be used?

b. A slow sand filter will follow the coagulation-flocculation-sedimentation. The organic content in the raw water supports a biofilm on the filter surface. How might this reduce the disinfectant dosage? What text Figure shows this?

c. The 4' thick filters run q=500 gpd/ft2. Find the total area of filter surface required to treat the 2.0 mgd. Also compute the hydraulic residence time in the filter.

d. The filtered water still has traces of ammonia and dissolved organics. Calcium hypochlorite Ca(OCl)2 is used for disinfection. What's the advantage, what's the potential problem with using the hypochlorite rather than using ultraviolet (UV)?


Related Discussions:- Coagulation-flocculation-sedimentation

Entropy, What is entropy microscopically

What is entropy microscopically

EM2013KEN2401MECH, Hi. I have made a payment for the above ticket number. W...

Hi. I have made a payment for the above ticket number. Will I get all the workings out too? [email protected]

Master production schedule, Master Production Schedule: A manufacturin...

Master Production Schedule: A manufacturing unit produces two products M and N on generates to stock basis. The estimated demand for the product M and N over the next six week

Explain the process for solve screw conveyer problem, Process for solve scr...

Process for solve screw conveyer problem For fully automatic extension of screw conveyer according to screed width we have to go for some design changes, At the end of main

Explain applications welding process, Applications. The  welding  process ...

Applications. The  welding  process  finds  widespread  applications  in almost all branches of industry and construction. fabrication and creation of steel structures

Mechanical design, 1. Produce the SW parts for the lugs, connector and tub...

1. Produce the SW parts for the lugs, connector and tubes. Produce an assembly to FIT at the designated points. 2. Create your own, individual, blank, customised drawing te

Different types of layouts, List and explain four different types of layout...

List and explain four different types of layouts for a factory.

Solid modeling and design, You are an engineer for WhyShopHere Toys. You ha...

You are an engineer for WhyShopHere Toys. You have been tasked with the following: Design a child's toy to provide food for fish in an aquarium. The toy should take the fo

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd