Considering the serious adverse consequences of growing environmental degradation steps had been taken to aware the students. This could have help our successor to take care of our environment to achieve green world.

1. Environmental
Engineering & Safety
By
Dr. Niva Nayak
Principal
(Associate Professor in Chemistry)
Orissa Engineering College
Bhubaneswar

2. Environmental Engineering & Safety

3. What is Environment
Importance of Environment
Provides Foods
 fresh Air & Water
Healthy nature healthy people
Maintain Energy in Earth

4. Environmental Engineering
Why U Study
Scope
Pollution

5. Due to human activities, different waste particles enter into the natural
environment which cause harmful effect to all living organism or
ecosystems.
Types of Pollution
Air Pollution by Industrial Emission & Vehicles
• Noise pollution
• Thermal pollution
• Radiation pollution
• Air Pollution
• Water Pollution
• Land Pollution

7. Global Warming

8. Water Pollution by Industrial effluents
Water Pollution
All Water is get Polluted ?
Can U give me a glass of fresh
Water ?
Please I am Very Thrusty !

9. Noise Pollution

10. How Does Recycling Helps the Environment
Recycling helps the
environment by
• Reducing Landfill
• Reduce Energy
Consumption
• Decrease Pollution
• Cost
Soil Pollution by soild wastes & Medical Hazardous wastes
What is Sustainable Development ?

11. Use Renewable Energy Resources

14. Environmental Safety
Accident
an unexpected
unplanned,
uncontrollable,
and undesirable
event.
Control
 Obey OSHA rule
 Engineering controls
 Work practices
 Administrative controls
 Use (PPE)
Industrial hazards :
HAZARDS
Physical
Chemical
Biological
Mechanical
Electrical
Pollution
Any accident that will occur in industries and cause injury, death and product
or property loss.

15. What is wrong with this picture?
Machanical Hazard
The Problem : Workers who operate & maintain machinery , each year suffer
approximately 18,000 persons amputations, lacerations, crushing injuries, abrasions
and 800 deaths

16. Causes of Machine Hazards
3 Basic Areas To Be Safeguarded
 Operational Point
 Moving Parts
 Power Transmission Apparatus
Shearing Actions Bending Actions Punching Actions

17. Cutting
In-Running Nip Points
Rotating Parts with Projections

18. CIVIL ENGINEERING
CONSTRUCTION SAFETY
Construction industry is one of the world’s major growing industries which provide
services to meet the rising needs and expectations of people throughout the world. In
India employs about 31 million people are employed in construction sector in which
close to 73% are seasonal and migrant workers, many of whom are unfamiliar with
construction processes, mainly contributing to the high rate of accidents.

19. Electrical Hazard Safety
Electrical hazard safety & types of injuries :
Taking precautions to identify and control electrical hazards, because it can lead to:
• injury or death
• fire or property damage
• Burns
• Shocks
• Falls
Electrical hazards arise due to:
• making contact with overhead wires
• undertaking maintenance on live equipment
• Working with damaged electrical equipment, plugs, sockets and electrical device.
• using equipment affected by rain or water ingress
If you come across a person receiving an electric shock:
• If possible, disconnect the electrical supply (switch?)
• assess the situation – never put yourself at risk
• take precautions to protect yourself and anyone else in the vicinity
• apply the first aid principles (e.g. DRSABCD)
• assess the injuries and move the casualty to a safe area if required
• administer first aid if trained
• seek urgent medical attention

20. Pay special attention to the condition of temporary cables & electrical equipment
To STAY ALIVE, you have to STAY ALERT

21. E-WASTE MANAGEMENT
What is e - waste ?
Electronic waste (e-waste) comprises waste electronics/electrical goods that are not
fit for their originally intended use or have reached their end of life. This may include
items such as computers, servers, mainframes, monitors, CDs, printers, scanners,
copiers, calculators, fax machines, battery cells, cellular phones, transceivers, TVs,
medical apparatus and electronic components besides white goods such as
refrigerators and air-conditioners.
When you throwing e-waste into the dustbin, it’s creates problems for the ecology
directly or indirectly for the living beings which are presents in air, water and cause
soil pollution.
E-waste contains materials like copper, silver, gold and platinum which could be
processed for their recovery.
E-waste contains toxic substances and chemicals, which are adverse effect on
environment and health, if not handled properly E - waste is hazardous only if it
contains hazardous constitutents.

22. Stop Growing of
Electronic Waste
Conclusion
• It is important that we create a national framework
for the environmentally sound management of e-
waste including wide public awareness and education
• Conduct detailed inventories of e-waste
• Initiate pilot schemes on collection and sorting of e-
wastes,including take back schemes and schemes for
repair refurbishment and recycling

23. Oil & Gas Operational Safety
In Petrochemical Industry
Petrochemical Industry facilities involved in the production of pure basic chemicals. Petrochemical
Industry facilities are following units:
• Refinery that processes crude oil into raw materials for the Petrochemical units
• Ethylene Units
• Polyethylene Units
• Propylene Units
• Polypropylene Units
• Butadiene Units
• Butene Units
• Aromatics Units

24. Personal Protective Equipment (PPE)
Why do you need PPE?
On November 14, 2007, OSHA announced a new rule regarding employers to provide personal
protective equipment (PPE), that is required for any industry because it is safer and cheaper to eliminate
hazards than to provide personal protective equipment.
Protecting Employees from Workplace Hazards
• Employers must protect employees from workplace hazards and dangerous work procedures that can
cause injury, illness and fatalities.
• By Assessment of different physical hazards that may be present in your work area, which includes :
Sources of motion , high and low temperatures , falling objects , sharp objects , rolling objects , electric
hazards , slip and falls , harmful dusts , light radiation , welding , heat treating & high intensity lights etc.

25. Employees must:
 Use all feasible engineering and work practice controls to eliminate and reduce hazards
• Then use appropriate PPE if these controls do not eliminate hazards
Training
Employees required to use PPE must be trained to know at least the following
When PPE is necessary
What type of PPE is necessary
How to properly put on, take off, adjust, and wear
Limitations of the PPE
Proper care, maintenance, useful life and disposal
Remember: PPE is the last control steps
Body Part Protection

26. Eye and Face Protection
Thousands of people are blinded every year from work related eye injuries. Which has been prevented,
if only people would have used eye or face protection. Types of eye / face hazards.
• Impact
• Heat
• Chemicals
• Dust
• Light or Radiation
Regular glasses or sunglasses are not appropriate SAFETY GLASSES
Object Striking Eyes
Dusts, Powders, Fumes, Mists , Small particles can enter your eyes & damage them.
Contact with Chemicals
Toxic chemicals Gases, Vapors, and Liquids
Swinging Objects
Large objects such as cables , ropes & tools that are thrown or fall
Thermal and Radiation Hazards
Operations such as welding, metal cutting, and working around furnaces can
expose your eyes to heat, ultraviolet, and infrared radiation
Control of Hazards
Machine Guards, Ventilation, Lighting , Safe Work Practices , Signs & Warnings , Eyewash Station

27. Goggles , Face Shields , Welding Helmets
90 % of all eye injuries can be prevented by suitable eye protection
Head Protection
Why is Head Protection Important?
In and around your head are : Eyes (with which you see), Ears (you hear), Nose
(you smell), Mouth (you eat and speak), Brain (you think). So injuries to the head
are very serious. For this reason, head protection and safety are very important .
Potential Incidences of Head Hazards
Impact : Falling of hard objects, Injuries include neck, Electric Shock, Drips, Molten
metals can irritate and burn the head, Toxic liquids such as acids, caustics.
Types of Head PPE
Hard hats

28. Hand Protection
Why is Hand Protection Important ?
Human hands are unique. No other creature can grasp, hold, move
and manipulate objects like a human hand. The hand is one of the
most complex parts of your body that coordination between bones,
tissues and nerves allows you to grip and do a variety of complex
tasks. Without your fingers or hands, your ability to work would be
greatly reduced. Almost 20% of all disabling accidents on the job
involve the hands
Types of Hand PPE Gloves
1). Metal mesh gloves – (resist sharp edges and prevent cuts), 2). Leather gloves – (shield your hands
from rough surfaces), 3). Vinyl and neoprene gloves – (protect your hands against toxic chemicals), 4).
Rubber gloves – (protect you when working around electricity), 5). Padded cloth gloves – (protect your
hands from sharp edges, dirt & vibration)

29. 6). Heat resistant gloves – (protect from heat and flames), 7). Latex disposable gloves – (protect from
germs and bacteria), 8). Lead-lined gloves – (protect from radiation sources), 9). Forearm Cuffs, Thumb
Guards, Mittens - (protect from forearm, thumb or fingers, protect your hands while working around very
cold or hot materials)
Foot Protection
Why is Foot Protection Important?
The human foot is rigid enough to support the weight of your entire body, and
yet flexible enough to allow you to run, dance, play sports, and to take you
anywhere you want to go. Without your feet and toes, your ability to work at
your job would be greatly reduced.

30. 1). Impact Injuries – (At work, heavy objects can fall on your feet or any sharp objects), 2). Injuries from
Spills – (hazardous chemical such as acids, caustics, and molten metals which cause and heat burns), 3).
Compression Injuries – (Heavy machinery, equipment, and other objects can roll over your feet which results
broken or crushed bones), 4). Electrical Shocks – (cause severe shocks and burns), 5). Extremes in Cold,
Heat, and Moisture, 6). Slipping – (Oil, water, soaps, wax, and other chemicals can cause you to slip & fall ).
Potential Incidences of Foot Hazards
Types of Foot PPE – ( Shoes & Boots )
1). Steel toe footwear – (protects your toes from falling objects and from being crushed), 2).
Metatarsal footwear – (special guards that run from your ankle to your toes and protect
your entire foot ), 3). Reinforced sole footwear – (metal reinforcement that protects your
foot from punctures), 4). Latex/Rubber footwear – (resists chemicals and provides extra
traction on slippery surfaces), 5). PVC footwear – (protects your feet against moisture and
improves traction)

31. 6). Butyl footwear – (protects against most ketones, aldehydes, alcohols, acids, salts, and alkalies), 7). Vinyl
footwear – (resists solvents, acids, alkalies, salts, water, grease, and blood), 8). Nitrile footwear – (resists
animal fats, oils, and chemicals), 9) Electrical hazard footwear – (insulated rubber to prevent shocks and
burns from electricity), 10). Disposable footwear – (shower slippers, clear polyethylene and non-woven
booties used in dust free work areas like TAJ MAHAL , Agra, India)
Body Protection
Why is Body Protection Important?
The skin acts as a natural barrier prevents from Chemicals which break down the skin barrier and allow infections.
Potential Incidences of Body Hazards
• Temperature stress
• Exposure to heat (hot metals) or cold (dry ice) which results in burns
•Chemical Contact
• Chemical splash
• Contact with potentially infectious materials
• Radiation

32. Types of Body PPE
•Insulated Coats and Pants
•Fire resistant
•Heat resistant
•Cold resistant
•Sleeves and Aprons
•Work well when pouring or manipulating chemical to reduce splash
•Make sure the sleeves and aprons are appropriate for the chemical
•Coveralls
•Tyvek use for particulate filtering such as asbestos
•Chemical rated
Full body suit – (Hazardous materials handling & Carbon filtering for emergency response)

33. THINK SAFETY and BE SAFE
Respiratory protection

34. FAQs
• What are important organic chemical parameters of waste
water?
• A)Chemical parameters of wastewater are carbohydrates,
proteins, lipids, fats, oils, grease, BOD, COD& TOC.
• What are the environmental legislation in India?
• A)1.The WaterAct-1974,2.The Air Act-1981,3.Environmental
Act-1986,4. The hazardous wastes Rules-1989,5.Biomedical
waste Rules-1998,6. The recycled plastics manufacture and
usage Rule-1999, 7.The Noise pollution Rules-2000,8.The
Ozone depleting substances Rules-2000,9. The Municipal solid
waste Rules-2000,10.The Batteries Rules-2001

35. FAQs
• What is Product safety?
• A)Product safety refers to physical health and safety
of citizens with respect to nonfood products such as
household appliances, toys, cars, cosmetics etc.
• What is PPE?
• A)It is Personal Protective Equipment and is of two
types. Respiratory type and Non-respiratory type.
• What is SPI
• A) It is Safety Performance Index and is a measure of
accident occurance.

36. Learn More
• You can learn more from the following e-
books:
• https://www.scientificpub.com/book-
details/Environmental-Engineering-And-
Safety--794.html
• https://www.goodreads.com/book/show/509
38667-environmental-engineering-and-safety