Exam Details

Subject Environmental Engineering II
Paper
Exam / Course B.Tech Civi Engg. (BTCLEVI)/B.Tech Electronics And Communication Engg. (BTECVI)
Department School of Engineering & Technology (SOET)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

Describe the method of estimating the quantity of sanitary sewage of a city.

Explain the process of maintenance of sewers.

Calculate the quantity of sludge generated per day in a clarifier having moisture content of 95%. The clarifier removes 60% of incoming solids. Inflow to the clarifier is 200 m^3/hr with 300 ppm of suspended solids. Assume specific gravity of sludge as 1·02.

What are the various ways to reuse treated waste water? Discuss briefly.

What are the main principles of design of aerated lagoons? Discuss briefly.

Explain the systems of separate and combined sewers for collection of sewage.

What are the various zones of pollution developed in the river system after a polluted stream is added to the river Explain briefly.

Two streams of effluents, 5,000 m^3/day and 10,000 m^3/day are generated in a town from two different locations. BOD5 of the first stream is 250 mg/l and that of the second stream is 220 mg/l. What would be the BOD5 of the mixed stream, if the above two streams are mixed together? Also, the mixed stream is now disposed into a small river having a flow of 250 l/s and BOD5 of 2 mg/l. What is the BOD5 of the river water immediately after mixing with the mixed sewage stream Assume that the two waste streams and the river have the same temperature.

Explain the principles of aerobic, anaerobic and facultative stabilization ponds.

Discuss the process of sedimentation in waste water treatment.

Describe the various methods of waste water treatment.

Describe the operation of a Trickling Filter giving a neat sketch.

7. Write short notes on the following:

Ventilation of Sewers

Do Sag Curve

Sewage Sickness

Hydraulic Retention Time


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Advance Surveying
  • Advanced Design Of Foundation
  • Advanced Environmental Engineering
  • Advanced Structural Analysis
  • Bachelor Of Technology (Ce)
  • Building Technology -I
  • Civil Engineering
  • Computational Methods In Structural Engineering
  • Earth And Rock Fill Dam Engineering
  • Elements of Engineering Science
  • Engineering Geology
  • Environmental Engineering II
  • Environmental Engineering-I
  • Estimation And Construction Management
  • Geoinformatics
  • Geotechnical Engineering - II
  • Mathematics-III
  • Pavement Evaluation
  • Quantity Surveying and Costing
  • Reliability And Optimization Of Structures
  • Structural Analysis - II
  • Structural Analysis - III
  • Structural Analysis I
  • Structural Design And Drawing - I
  • Structural Design And Drawing - II
  • Surveying
  • Traffic Engineering
  • Transportation Engg. II
  • Transportation Engineering - I
  • Transportation Planning
  • Water Resources Engineering
  • Water Resources System Planning And Design