WorksheetsPop Quiz Industrial Waste
Total questions: 20
Worksheet time: 8mins
A chemical waste is classified as "corrosive" if shows the following characteristics EXCEPT
Has a pH ≤ 2 or ≥ 12.5
Reacts violently with water
can corrode metals
cause burning sensation if in contact with skin
Toxic chemical waste is hazardous primarily because it:
Can dissolve metals and leach into the ecosystem
Reacts violently when it exposed to other living organism
Is harmful or fatal when ingested or absorbed
Catches fire easily at room temperature
A laboratory is disposing of waste that includes methylene chloride and chloroform. This type of waste should be classified as:
Hazardous chemical waste
inorganic chemical waste
toxic chemical waste
chlorinated organic waste
Which practice is considered most effective for reducing chemical waste in the laboratory?
Disposing chemicals as soon as they are meet the expiry date
Ordering chemicals in bulk without a specific need
transfer chemicals to a new containers for every experiment
Substituting hazardous chemicals with less hazardous alternatives
Which of the following best represents the waste management hierarchy from most to least preferred?
Disposal → Recycling → Source Reduction → Treatment
Source Reduction → Recycling → Treatment → Disposal
Source Reduction → Recycling → Disposal → Treatment
Treatment → Disposal → Source Reduction → Recycling
Which of the following is NOT a waste minimization technique?
Proper labeling and storage of chemicals
Neutralizing acids and bases before disposal
Sharing extra chemicals with other lab or department
Evaporating solvents in open air
Which documentation helps reduce chemical waste by tracking the usage and it's expiry date?
Chemical inventory log
Risk assessment form
Material Safety Data Sheet (MSDS)
Waste Disposal form
What are the three pillars of the Triple Bottom Line (TBL) approach?
Revenue, Profit, Nature
Economy, Efficiency, Human
Waste, Money, Sustainability
People, Planet, Profit
Which of the following would be considered a long-term economic benefit of lab waste reduction?
Increased packaging use and transportation cost
Fewer regulatory fines and zero remediation cost
Higher insurance premiums
More frequent chemical orders due to expansion market
Which of the following best reflects a cost saving under the 'Planet' dimension of TBL?
Refuse to conduct environmental audits
Paying attention to tree planting
Reducing energy use and chemical waste
Buying more solvents in bulk
The following represents a hidden cost of waste under the 'People' (social) aspect of TBL EXCEPT?
Lost of customer trust
Unsafe working condition to workers
Energy consumption
Health risks to worker and consumers
Which of the following is a plant-based alternative to conventional plastic that degrades faster?
PET (Polyethylene terephthalate)
PLA (Polylactic acid)
BPA (Bisphenol A)
HDPE (High-density polyethylene)
What is the main environmental advantage of using biodegradable packaging materials?
They reduce long-term waste accumulation
They can be burned safely
They are cheaper to manufacture
They do not require recycling
What is the primary purpose of aerobic biological treatment?
Remove metals from waste using microbes
Neutralize acids using biological agent
to increase the amount of dissolved oxygen in water
Break down of organic pollutants using microbes in the presence of oxygen
The following are a physical method of waste treatment EXCEPT?
Sedimentation
Composting
Centrifugation
Filtration
Which component of the Triple Bottom Line (TBL) approach addresses direct financial costs like landfill fees and legal fines?
Planet
Profit
Productivity
Planet
In the Pollution Prevention Hierarchy, which approach is considered the most desirable for protecting the environment?
Ultimate Disposal
Recycling or Reuse
Source Reduction
Waste Treatment
Which physical treatment method is commonly used to remove relatively high levels of ionic materials, such as metals and organics, from wastewater?
Centrifugation
Steam Stripping
Sedimentation
Resin Beds
Why is industrial composting generally more effective for materials like bioplastics (e.g., PLA) compared to home composting?
Home composting is faster, making industrial methods less necessary for simple waste
It avoids the use of microorganism to speed up the process
It relies entirely on UV radiation instead of biological activity
It uses controlled temperatures and moisture that domestic bins cannot maintain
What are the key features of a modern sanitary landfill that help prevent environmental contamination?
Absence of liners and monitoring systems
Protective clay caps, compacted low-permeability soil, and protective liners
Open dumping with no leachate control
Reliance only on natural soil filtration
