Question:
Aerobic biochemical treatment of sewage effluent is essentially a process of
Aerobic biochemical treatment of sewage effluent is essentially a process of
Show Hint
Biological treatment:
\[
\boxed{
\begin{aligned}
\text{Aerobic} &\rightarrow \text{Oxidation (O}_2\text{ present)}\\
\text{Anaerobic} &\rightarrow \text{Decomposition without O}_2
\end{aligned}
}
\]
Updated On: Jul 23, 2026
- Reduction
- Dehydration
- Alkalinisation
- Oxidation
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Recall aerobic biological treatment.
In aerobic treatment, microorganisms utilize dissolved oxygen to decompose organic matter present in sewage.
Step 2: Identify the governing process. The decomposition occurs through biological oxidation of organic pollutants. Hence, \[ \boxed{\text{Oxidation}} \] is the correct answer. Therefore, \[ \boxed{(D)} \] is the correct answer.
Step 2: Identify the governing process. The decomposition occurs through biological oxidation of organic pollutants. Hence, \[ \boxed{\text{Oxidation}} \] is the correct answer. Therefore, \[ \boxed{(D)} \] is the correct answer.
Was this answer helpful?
0
0
Top TS PGECET Civil Engineering Questions
- A man weighing \( W \) newtons entered a lift which moves with an acceleration of \( a \, \text{m/s}^2 \). When the lift is moving downward, the force exerted by the man on the floor of the lift is:
- The magnitude of the resultant of two equal forces each of magnitude \( F \) is \( \sqrt{2}F \). Then the angle between their line of action is:
- The equation of motion of a particle starting from rest along a straight line is \( x = t^3 - 3t^2 + 5 \). The ratio of the accelerations after 5 s and 3 s will be:
- A tennis player returns a ball by hitting it with a racket. If the force exerted by the racket on the ball is increased, then the impulse imparted to the ball:
- Radius of gyration is that distance which when squared and multiplied with total mass of the body gives
View More Questions
Top TS PGECET Water Resources Questions
- In a ghat area, the average annual rainfall observed is 500 mm. Then the average annual runoff in millimetres as per the Inglis and DeSouza's formula is
- When a canal and a drainage approach each other at the same level, the structure so provided is called as
- Economic height of a dam is the height corresponding to which
- Turbidity of raw water is a measure of
- The biochemical oxygen demand is computed by
View More Questions
Top TS PGECET Questions
- If \( P = \begin{pmatrix} 1 & 1 & 1 \\ 0 & 1 & 2 \\ 0 & 0 & 1 \end{pmatrix} \) is the modal matrix of \( A = \begin{pmatrix} 1 & 1 & 0 \\ 0 & 2 & 2 \\ 0 & 0 & 3 \end{pmatrix} \) then the sum of all the elements of \( P^{-1}AP \) is
- If the system of equations \( kx + y + z = k - 1 \), \( x + ky + z = k - 1 \), and \( x + y + kz = k - 1 \) has infinite solutions, then \( k \) is
- The value of the integral \( \int_C (2xy - x^2) \, dx + (x^2 + y^2) \, dy \) where \( C \) is the boundary of the region enclosed by \( y = x^2 \) and \( y^2 = x \), described in the positive sense, is
- Let \( f(x) = \log x \). The number \( C \) strictly between \( e^2 \) and \( e^3 \) such that its reciprocal is equal to \( \frac{f(e^3) - f(e^2)}{e^3 - e^2} \) is
- The solution of the differential equation \( (D^2 + 2)y = x^2 \) is
View More Questions