Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is the Sludge Volume Index?
Two 1 L samples of mixed liquor are taken from a lagoon. After settling for 30 min in a graduated cylinder, 250 mL of solids have settled out in the first sample. The total suspended solids concentration (MLSS) in the second sample is found to be 2300 mg/L.
(a) What is the sludge volume index?
(b) What is the theoretical required sludge recycle rate?
Ans:
(a) From eq for SVI, SVI = 1000Vsettled, mL/L/ Xmg/L
= (1000mg/g)(250ml/L)/2300mg/L = 109mL/g
(b) From Eq for, R = Vsettled, mL/L/ 1000-Vsettled, mL/L
250mL / 1000mL - 250mL = 0.33
How to read verniers and main scale readings on theodolite of 10"?
Incoming water contains 2.5 mg/L as a substance of natural alkalinity (HCO3-). The flow rate is 9.5 ML/day). (a) What feed rate is required if the alum dose is 7 mg/L and is avail
Q. Explain the Design discharge for bridge waterway? Design discharge for bridge waterway should be a flood of 50 year frequency. For very large bridges damage to which is like
Q. Write short note on Surplus Store? Comprise stores which are surplus to requirements and include materials released from renewals and replacements as well as from dismantled
Why we mixm pozzolona in cement
JETTIES: A jetty is a structure projecting into the sea from the shore line for receiving ships. They are made of RCC trestles with a deck to accommodate railway track and roa
Explain clearly with a neat sketch how you will verify the coefficient of permeability of a clay sample in the laboratory and derive the expression used to compute the permeability
DEFINITION TYPE STEP OF CONSTRUCTION STEP OF SAFETY
Wet Mix Macadam: For heavily trafficked highways, the granular bases are constructed using Wet Mix Macadam (WMM). The WMM is a specification in which well graded aggregate is
How do you treat High Sulfate soils, Gypsum? Is it good practice to build on it?
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd