Class 7 Exam > Class 7 Videos > Science Class 7 (Old NCERT) > Final Step in Wastewater Treatment
Final Step in Wastewater Treatment Video Lecture | Science Class 7 (Old NCERT)
FAQs on Final Step in Wastewater Treatment Video Lecture - Science Class 7 (Old NCERT)
| 1. What is the final step in wastewater treatment? |  |
Ans. The final step in wastewater treatment is disinfection. This process involves the removal or inactivation of disease-causing microorganisms to ensure that the treated water is safe to be discharged into the environment or reused.
| 2. How is disinfection carried out in wastewater treatment? | |
Ans. Disinfection in wastewater treatment is typically carried out through various methods such as chlorination, ultraviolet (UV) radiation, or ozonation. Chlorination involves the addition of chlorine to kill or deactivate the microorganisms. UV radiation uses ultraviolet light to disrupt the DNA of the microorganisms and render them harmless. Ozonation employs ozone gas to oxidize and destroy the microorganisms.
| 3. Why is disinfection necessary in wastewater treatment? | |
Ans. Disinfection is necessary in wastewater treatment to protect public health and the environment. Wastewater may contain harmful pathogens, including bacteria, viruses, and parasites, which can cause waterborne diseases. Disinfection ensures that these pathogens are eliminated or reduced to safe levels before the treated water is discharged or reused.
| 4. What are the potential risks associated with ineffective disinfection in wastewater treatment? | |
Ans. Ineffective disinfection in wastewater treatment can pose significant risks. If pathogens are not adequately eliminated, the treated water can still contain disease-causing microorganisms. This can lead to the contamination of water bodies, posing health risks to aquatic life and potentially affecting human health if the water is used for drinking or recreational purposes.
| 5. How can the effectiveness of disinfection in wastewater treatment be ensured? | |
Ans. The effectiveness of disinfection in wastewater treatment can be ensured through regular monitoring and testing. Water treatment facilities measure parameters such as residual chlorine levels or UV intensity to confirm that the desired disinfection goals are being achieved. Additionally, proper maintenance and calibration of disinfection equipment are essential to ensure its optimal performance.
About this Video
1.2K Views
4.78/5
Rating
Sep 05, 2025
Last updated
Video Description: Final Step in Wastewater Treatment for Class 7 2025 is part of Science Class 7 (Old NCERT) preparation.
The notes and questions for Final Step in Wastewater Treatment have been prepared according to the Class 7 exam syllabus.
Information about Final Step in Wastewater Treatment covers all important topics for Class 7 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Final Step in Wastewater Treatment.
Introduction of Final Step in Wastewater Treatment in English is available as part of our Science Class 7 (Old NCERT) for Class 7 & Final Step in Wastewater Treatment in
Hindi for Science Class 7 (Old NCERT) course. Download more important topics related with notes, lectures and mock test series for
Class 7 Exam by signing up for free.
Description
Video Lecture & Questions for Final Step in Wastewater Treatment Video Lecture | Science Class 7 (Old NCERT) - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Science Class 7 (Old NCERT).
Information about Final Step in Wastewater Treatment
Here you can find the meaning of Final Step in Wastewater Treatment defined & explained in the simplest way possible.
Besides explaining types of Final Step in Wastewater Treatment theory, EduRev gives you an ample number of questions to practice Final Step in Wastewater Treatment tests,
examples and also practice Class 7 tests.
Related Searches
Final Step in Wastewater Treatment Video Lecture | Science Class 7 (Old NCERT)
,ppt
,Extra Questions
,practice quizzes
,mock tests for examination
,Final Step in Wastewater Treatment Video Lecture | Science Class 7 (Old NCERT)
,Semester Notes
,past year papers
,Important questions
,Sample Paper
,Summary
,Free
,shortcuts and tricks
,Objective type Questions
,video lectures
,Viva Questions
,Exam
,MCQs
,Previous Year Questions with Solutions
,Final Step in Wastewater Treatment Video Lecture | Science Class 7 (Old NCERT)
,study material
;
Study Final Step in Wastewater Treatment on the App
Students of Class 7 can study Final Step in Wastewater Treatment alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Final Step in Wastewater Treatment,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Final Step in Wastewater Treatment is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily