Pollution Prevention & Waste Minimization Flashcards
7 cards from real CEA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pollution Prevention & Waste Minimization flashcards as text
Which of the following best describes 'closed-loop recycling' in an industrial setting?
Answer: Reintegrating a process by-product back into the same process as a raw material
Closed-loop recycling means a by-product or waste stream is fed back into the same production process as a raw material substitute, keeping the material within the facility's operations.
An environmental auditor reviewing a facility's Tier II chemical inventory notices a sharp increase in reported acetone quantities. In a P2 context, what is the most likely root cause to investigate?
Answer: Increased production volume without corresponding process efficiency improvements
A sharp increase in reported chemical quantities typically suggests production growth without efficiency gains, making process optimization a key P2 opportunity to investigate.
The EPA's 33/50 Program was a voluntary initiative that asked companies to reduce releases of 17 priority chemicals. The primary mechanism for achieving these reductions was:
Answer: Voluntary commitments to source reduction and recycling
The 33/50 Program was entirely voluntary, relying on facility commitments to reduce TRI-reported releases through source reduction, recycling, and process improvements.
Which document typically serves as the baseline for a facility-level pollution prevention planning effort?
Answer: A material balance or process flow analysis
A material balance or process flow analysis quantifies all inputs, outputs, and losses in a process, identifying where waste is generated and providing the baseline for P2 planning.
A facility reduces its hazardous waste generation by implementing better housekeeping practices such as promptly closing solvent containers and fixing dripping valves. This strategy is classified as:
Answer: Good operating practices — source reduction
Good operating practices such as proper container management and leak prevention are recognized source reduction techniques under the Pollution Prevention Act.
Under RCRA, when does a material being reclaimed (recycled) still qualify as a solid waste?
Answer: When it is stored in speculative accumulation before reclamation
Materials stored speculatively — accumulated without a sufficient portion actually being recycled within a calendar year — are still considered solid wastes under RCRA's speculative accumulation rule.
A Pollution Prevention Opportunity Assessment (PPOA) at an electroplating facility identifies dragout of plating chemicals as a major waste source. The most effective P2 control for dragout is:
Answer: Installing drip racks and drag-out recovery tanks after plating baths
Drip racks and drag-out recovery tanks physically capture plating solution carried out on parts, returning it to the bath and directly reducing chemical waste and water pollution.