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

Define a crm and what are its uses, The process of learning more about clie...

The process of learning more about clients needs such as information about customers , sales, marketing effectiveness, responsiveness and market trends is called as Customer Relati

Velocity diagram, how do I learn how to present velocity and acceleratio...

how do I learn how to present velocity and acceleration diagram from a free space diagram

Shipping of steel pipes, Q. Shipping of steel pipes? Pipe will be trans...

Q. Shipping of steel pipes? Pipe will be transported from the coating yard to the job site as specified in the Purchaser Order. The Applicator will ensure that the pipe has suf

Explain the cost analysis of radial drilling machine, Explain the Cost anal...

Explain the Cost analysis of radial drilling machine Cost regarding to Manual arrangement of auger extension in paver machine: 1.cost of segmented angle radial drill machin

Calculate the support reaction, Calculate the support reaction: Q: A ...

Calculate the support reaction: Q: A beam 8m long is hinged at point A and supported on rollers over smooth surface inclined at 300 to horizontal at point B . The beam

Cutting technology., can you explain about merchant circle,cutting forces

can you explain about merchant circle,cutting forces

Surging, what is surging in turbo machines subject

what is surging in turbo machines subject

Compute the maximum efficiency of the solar cell, The main objective is to ...

The main objective is to compute the maximum efficiency of the solar cell panels, produce hydrogen and estimate the hydrogen production rate using solar cells and electrolyzer and

Angular speed of the cylinder, Angular speed of the cylinder: A cylind...

Angular speed of the cylinder: A cylinder of mass 70 kg rotates from rest in frictionless bearing under the action of a mass of 7.0 kg carried by a rope wrapped around the cyl

Define inversion of a mechanism, Define Inversion of a mechanism ? Illustra...

Define Inversion of a mechanism ? Illustrate in detail about any three of the Inversions of the single slider crank chain Mechanism. (a) What do you understand by Degree of Free

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