Environmental Engineering-II (CE4722)


Environmental Engineering-I (CE-4712)

Recommended Book(s)

Integrated Solid Waste Management, George  T., Latest Edition

Reference Book(s)

Environmental Impact Assessment For Waste Treatment And Disposal  Facilities, Petts J., Eduljee G., John Willey & Sons Inc. UK

 Environmental Engineering, Gerard K.,McGraw-Hill International Edition

Course Objectives

1. To introduce knowledge of Environmental laws and regulations required in context to pollution control and impact assessment requirement. 2. Introduction to Impact Assessment concept and techniques. 3. To provide know-how to students to plan, design waste water collection & treatment systems. 4. To introduce the definitions and characteristics of solid wastes, concept of waste management and methods of safe disposal.

Course Learning Outcomes (CLO)

CLO:1   Learn about environmental legislation, regulations and impact assessment.

CLO:2   Understand the sewage characteristics, treatment and disposal according to national and international standards.

CLO:3   Be able to use related softwares for design of sewer and sewage systems.

Course Contents

Introduction to Environmental Legislation and Regulations

  • Basic definitions and differences in terms

  • International Acts, Treaties, Agendas and Accords

  • Environmental Protection Agency

  • Pakistan Environmental Protection Act 1997

  • National Environmental Quality Standards (NEQS)

 Introduction to Environmental Impact Assessment

  • Definitions, activity, consequence, effect-impact, relationship, magnitude, duration and significance.

  • Assessment types

  • IEE & EIA in context to PEPA applicable to development projects

  • EIA process

  • EIA Study

  • EIA Analysis

  • EIA Techniques

  • Environmental & Monitoring Plan

Estimation of Sewage Quantities

  • Population characteristics

  • Population forecasting

  • Waste water generation

  • Rainfall intensity formulas, hydrograph & weather flow, sewage quantities

  • Variations and rates of flows

  • Velocity gradient & limiting velocities.

Characteristics of Sewage

  • Sampling techniques and examination of wastewater (Physical, chemical and microbiological parameters) Biochemical Oxygen demand (BOD)

  • Chemical Oxygen Demand (COD)

  • Microbiology of sewage

  • Effluent disposal guideline and standards

  • Pakistan National Environmental Quality

Standards (NEQS) and International Standards.

  • Sewer system (Types, shapes, size and materials of sewers, pipe strengths and tests)

  • Design, construction, laying and maintenance of sewage system

  • Separate & Combined systems

  • Sewer appurtenances

 Sewage Treatment and Disposal: Primary, secondary & tertiary treatment

  • Screening grit chamber, skimming tanks & sedimentation tanks

  • Activated sludge treatment, tricking filters

  • Rotating biological contactors

  • Aerobic systems, lagoons and oxidation ponds, etc

Sewage Disposal

  • Receiving body assimilation capacity

  • Stream pollution and self recovery, sludge handling, treatment & disposal

  • Effluent re-use

 Building drainage

  • Soil pipes, anti-syphon pipes and waste water pipes

  • Sanitary fixtures and traps

  • House connection and testing of house drainage

  • Cross connection and back syphonage control

Solid waste management

  • Types, characteristics, sources and quantities of solid waste

  • Collection, disposal (Landfill, incineration, RDF, waste to energy) and recycling

 Sofware applications

Mapping of CLOs to Program Learning Outcomes



(Environmental Legislation)


 (Sewage analysis)


 (Software use)



(Engineering Knowledge)





(Problem Analysis)





(Design/Development of Solutions)










(Modern Tool Usage)




(The Engineer and Society)





(Environment and Sustainability)








(Individual and Team work)










(Project Management)





(Lifelong Learning)




Mapping of CLOs to Assessment Modules





Assessment Modules

Assignments (20-25%)


Quizzes (15-20%)

Midterm Exam (20%)


Final Exam (40-45%)