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
Example for Beam Flexure Design Select the lightest W section for the simply supported beam shown below. The beam length is 12ft. The nominal loading is: w d = 4.0 kip/ft (i
Explain the Primary Treatment for Wastewater Primary Treatment: to remove the pollutants that floats or settles. Typically 60% of suspended solids and 35% of BOD 5 are removed
in plane table surveying which activity is done first whether centering or levelling?
The plastic limit and liquid limit of a soil are 33% and 45% respectively. The percentage volume change from the liquid limit to the dry state is 36% of the dry volume. Likewise, t
how can you know that the civil war real.
Question In pumping stations one of choices for the material of water tanks is fibre-reinforced plastic. What are main advantages associated with this kind of material? An
design a 3-meter cantilever slab to carry a uniform total dead load of 8.2KN/m^2 and a concentrated live load at the free end of 30 KN/m. f''c=28Mpa fy=420Mpa.
Ropeways: The system of ropeways consists of : (a) a cable suspended between towers, and (b) cars which move on the cable. Case with capacity upto 20 passengers is us
Explain the Strength Design (LRFD) 1. γ Factors are applied to loads and φ factors applied to resistance. 2. Unfactored service loads receive a load factor γ > 1.0
Three alternatives are being considered for improving a street intersection.The annual dollar savings on account of the improvement is shown below. Assume that the intersection wi
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