Question

How is suspended solids and sludge different?

What is the relationship between them?

Answer #1

**Suspended****Solids**

These are the solid organic or inorganic particles that remain in the suspended form or colloidal form and also due to the turbulence in the water. Suspended solids are responsible for the haziness or turbidity in the water.It also effects the disinfection process.

It can be removed by sedimentation.

**Sludge**

****During the process of water
treatment or waste water treatment, there is a removal of solids
(Suspended Solids,Colloidal Solids and Dissolved solids). During
the removal process these solids are just concentrated and removed
as a mixture with water.This mixture or semi solid slurry of
treated particles is known as Sludge.It has high percentage of
water in it.Before the disposal of sludge it is too much important
to concentrate this slurry.

What is activated sludge? How it is different from
primary sludge?

What is activated sludge? How it is different from
primary sludge?

What is activated sludge? How it is different from
primary sludge?

Determine the mass and volume of sludge produced and the volume
of sludge as a percentage of the total flow from the use of alum
[Al2(SO4)3·18H2O] for the removal of turbidity. Assume the
following conditions apply: (1) flow rate is 0.05 m3/s, (2) average
raw-water turbidity is 45 NTU, and (3) average alum dose is 40
mg/L, sludge solids concentration is 5 percent with a corresponding
specific gravity of 1.05, and temperature is 10◦C. Assume the ratio
between total suspended...

Mass of solids Generated from the activated sludge tanks.
13. Assume: The total design flow is 3.75 MGD (15,000
m3/day). The NPDES limit is 25/30. Assume that the waste
strength is 170 mg/L BOD after primary
clarification. Y = 0.55 kg/kg.
What is the mass of solids generated each day (Kg/day or
lbs/day) in the activated sludge tankage?

A treatment plant that sends effluent into the river claims the
mean suspended solids is never above 40 mg/l. Measurements of the
suspended solids in river water on n = 14 Monday mornings yield x
(x bar) = 46 and s = 9.4 mg/l. Based on data collected over a
period of many years, it is reasonable to assume that the
individual measurements follow a normal distribution. Do the data
support or refute the treatment plant’s claim?
Could you explain...

14. Sludge wasting rate (Qw) from the solids
residence time (Thetac = mcrt) calculation. Given the
following information from the previous problem. The total design
flow is 15,000 m3/day. Theoretical hydraulic detention
time (Theta) = 8 hours. The NPDES limit is 25 mg/L BOD/30 mg/L
TSS.
Assume that the waste strength is 170
mg/L BOD after primary clarification.
XA=MLSS = 2200 mg/L,
Xw = Xu =
XR = 6,600 mg/L,
qc = 8 days.
Make sure you account for the...

what is the sonographic difference between sludge and stone in
gallbladder?

What are the main parameters of a body's condition? Describe the
relationship between them.

What is the relationship between hepcidin and different types of
anemia?! Explain in details

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 3 minutes ago

asked 52 minutes ago

asked 52 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago