Waste Water Treatment Plant Primary Treatment
Waste Water Treatment Plant - Primary
Waste Water Treatment Plant Primary treatment:
This is a mechanical process which involves screening and setting of large particles. First, the sewage is passed through screens of vertical bars to remove larger impurities such as metal cans, plastic bags, cloth pieces etc. The wastewater is then passed through a grit and sand removal tank called the grit chamber. The speed of the incoming wastewater is reduced so that sand grit, pebbles, etc. settle down. The water is then passed through huge sedimentation tanks. Here solid wastes such as faeces is allowed to settle down and the light floatable waste such as soaps, oils, plastics, and grease rise.
Solid waste that settles at the bottom in the primary treatment of wastewater is called the sludge. Light waste that rises to the top and floats, during wastewater treatment is called the scum.
In a filtration plant, water is filtered using layers of _____________, fine gravel and medium gravel | |||
| Right Option : D | |||
| View Explanation | |||
When waste water is passed through bar screens in WWTP, it removes | |||
| Right Option : A | |||
| View Explanation | |||
Solid waste that settles at the bottom in the primary treatment of wastewater is called the ______________ . | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
