Browse by Stream
-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Ranking
Products & Resources
-
Study Abroad
Top Countries
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Exams
Colleges & Courses
Predictors
-
Learn
Online Courses
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Animation Courses
Colleges
Resources
-
Media, Mass Communication and Journalism
Exams
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- #1.4
- #8.12
- #Match the column
- #Short Answer type
- #Very Short Answer type
- #Long answer type
- #Multiple Choice Questions (MCQs)
- 1.0
- 1.0
- 1.0
- 1.0
- 1.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 7.0
- 7.0
- 7.0
- 7.0
- 7.0
- 8.0
- 8.0
- 8.0
- 8.0
- 9.0
- 9.0
- 9.0
- 9.0
- 10.0
- 10.0
- 10.0
- 10.0
- 11.0
- 11.0
- 11.0
- 11.0
- 11.0
- 12.0
- 12.0
- 12.0
- 13.0
- 13.0
- 13.0
- 14.0
- 14.0
- 14.0
- 14.0
- 15.0
- 15.0
- 15.0
- 15.0
- 16.0
- 16.0
- 17.0
- 17.0
- 18.0
- 18.0
- 19.0
- 19.0
- 20.0
- 20.0
- 21.0
- 21.0
- 22.0
- 22.0
- 23.0
- 24.0
- 25.0
- 26.0
- 27.0
- 28.0
- 29.0
- 29.0
- 30.0
- 31.0
- 32.0
- 33.0
- 34.0
- 35.0
- 36.0
- 38.0
- 39.0
- 40.0
- 41.0
- 42.0
- 43.0
- 44.0
- 45.0
- 46.0
- 47.0
- 48.0
- 49.0
- 50.0
- 51.0
- 52.0
- 53.0
Which one of the following impurities is easiest to remove from wastewater?
a. Bacteria
b. Colloids
c. Dissolved solids
d. Suspended solids
Answers (1)
The answer is the option (d) Suspended solids
Explanation: Suspended solids can be removed by sedimentation and decantation. Dissolved solids can be removed by evaporation of water which is an energy intensive process. Removal of colloids needs centrifugation. Removal of bacteria involves use of bactericidal agents.
View full answer
Similar Questions
- 100 g of liquid A (molar mass 140 g mol^-1) was dissolved in 1000 g of liquid B (molar mass 180 g mol^-1).The vapour pressure of pure liquid B was found to be 500 torr.
- 100 turn rectangular coil ABCD (in X-Y plane) is hung from one arm of a balance (shown in figure). A mass 500 g is added to the other arm to balance the weight of the coil.
- 100m long antenna is mounted on a 500m tall building The complex can become a transmission tower for waves with λ (a) ~ 400 m (b) ~ 25 m (c) ~ 150 m (d) ~ 2400 m
Latest Question
- A sum of money under compound interest doubles itself in 4 years. In how many years will it become 16 times itself? Option: 1 1
- A certain loan amounts, under compound interest, compounded annually earns an interest of Rs.1980 in the second year and Rs.2178 in the third year. How much interest did it earn in the first year?
