Question:
In domestic sewage, impurities in the form of suspended solids, colloidal materials and dissolved materials, are about
In domestic sewage, impurities in the form of suspended solids, colloidal materials and dissolved materials, are about
Updated On: Jun 14, 2022
- 0.001
- 0.021
- 0.05
- -0.1
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
A mere $0.1\%$ impurities make domestic sewage unfit for human use. These impurities include suspended solids (e.g., sand, silt and clay), colloidal material (e. g., Faecal matter, bacteria, cloth and paper fibres) and dissolved materials e.g., nutrients (nitrate, ammonia, phosphate, sodium, calcium, etc.).
Was this answer helpful?
0
0
Top Questions on Microbes in human welfare
- Which microorganism is used in yoghurt production?
- MHT CET - 2024
- Biology
- Microbes in human welfare
- Given below are two statements:
Statement I: Whisky, brandy, and rum are produced without distillation of the fermented broth.
Statement II: Saccharomyces cerevisiae is called doctor’s yeast.
Choose the correct answer from the options below:- CUET (UG) - 2024
- Biology
- Microbes in human welfare
- Which of the following plays a significant role in our stomach in checking disease-causing microbes?
- CUET (UG) - 2024
- Biology
- Microbes in human welfare
- Assertion (A): Wuchereria bancrofti is an intercellular parasite.
Reason (R): It lives among the cells of the tissues of the host.- TS EAMCET - 2024
- Zoology
- Microbes in human welfare
- In man, Microsporum causes:
- TS EAMCET - 2024
- Zoology
- Microbes in human welfare
View More Questions
Questions Asked in AMUEEE exam
- The ratio of the half-life time $ (t_{1/2}) $ , to the three quarter life-time, $ (t_{3/4}) $ , for a reaction that is second order
- AMUEEE - 2018
- Order of Reaction
- $ 0.002\, M $ solution of a weak acid has an equivalent conductance $ (\wedge) 60\, ohm^{-1}\, cm^{2}\, eq^{-1} $ . What will be the $ pH $ ? (Given : $ \wedge = 400 \, ohm^{-1} \, cm^{2} \, eq^{-1} $ ]
- AMUEEE - 2018
- Electrochemistry
- The electrode potential, $ E^{\circ} $ , for the reduction of $ MnO^{-}_{4} $ to $ Mn^{2+} $ in acidic medium is $ +1.51\, V $ . Which of the following metal(s) will be oxidised? The reduction reactions and standard electrode potentials for $ Zn^{2+}, Ag^{+} $ , and $ Au^{+} $ are given as $ Zn^{2+} (aq) +2e \to Zn(s), E^{\circ} = -0.762\, V $ $ Ag+ (aq) +e {\rightleftharpoons} Ag (s), E^{\circ}=+0.80 \,V $ $ Au^{+} (aq) +e {\rightleftharpoons} Au(s), E^{\circ}+1.69\,V $
- AMUEEE - 2018
- Electrochemistry
- Three particles, two with masses $ m $ and one with mass $ M $ , might be arranged in any of the four configurations shown below. Rank the configurations according to the magnitude of the gravitational force on $ M $ , least to greatest
- AMUEEE - 2018
- Gravitation
- The $ EAN $ value $ y \left[Ti\left(\sigma-C_{6}H_{5}\right)_{2}\left(\pi-C_{5}H_{5}\right)_{2}\right]^{0} $ is
- AMUEEE - 2018
- coordination compounds
View More Questions
Concepts Used:
Microbes in Human Welfare
There are several valuable microorganisms that are beneficial to humans in various manners such as:
In Household Products
- Fermentation of milk to produce yogurt.
- Milk cuddling to compose curd, cheese, and paneer.
In Industrial Products
- Production of beverages such as wine, beer, whiskey, brandy, or rum.
- Production of antibiotics such as Penicillin and other chemical substances to kill or retard the expansion of disease-causing microbes.
Fermented Beverages
- A fermentor is used to produce microbes on a large scale for industrial purposes.
- The brewer’s yeast (Saccharomyces cerevisiae) is used to make ethanol. At this time, the yeast ferments malted cereals and fruit juices.
Antibiotics
- The term antibiotic means “against life”. These materials can kill or destroy the growth of other microbes.