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environmental
waste test
| Question | Answer |
|---|---|
| The sum of all waste (municipal, agricultural, etc) produced by a population | waste stream |
| "garbage" waste produced by homes and businesses | municipal solid waste |
| wast that is too toxic or reactive to handle in the same was as municipal waste | hazardous waste |
| recovering materials in waste to be rused as other products | recycling |
| allowing biodegradable materials in waste to be decomposed naturally and returned to the soil. | composting |
| the cost of a garbage truck dumping its load at a landfill or incinerator | tipping fee |
| toxic water that infiltrates through a landfill and collects at the bottom | leachate |
| give an example of biodegradable and non degradable waste. Which can be composted? | only biodegradable waste such as food scraps and lawn trimmings can be composted. Non degradable waste like styrofoam and other plastics cannot be |
| What are open dumps and why are they now illegal in most developed countries? | open dumps are common areas where communities would simply dump their waste. they are illegal now because of the smell they produce, the wildlife they attract, and the fact that the waste is not contained |
| the two most common methods of municipal waste disposal are sanitary landfills and incinerators. what are the benefits and drawbacks of using each | sanitary landfills are less expensive and easier but they will fill up over time and finding sites to build new ones is increasingly difficult. incinerators do not have the same limited lifespan but are much more expensive 2 construct & cause pollution |
| give two examples of benefits of recycling instead of sending material to a landfill. | recycling keeps landfills from filling up so quickly. there is also a great deal of energy conserved by recyling from scrap material instead of mining and refining raw ore. |
| what is the integrated was management strategy | 1. reduce 2. reuse 3. recycle and compost 4. incineration 5. landfill |
| summarize what occurred during the love canal disaster | A huge chemical waste site was buried and sold to the Niagara Falls School District for use in residential development and the construction of an elementary school. |
| what two laws were written in response to the love canal disaster | The RCRA requires documentation and proper handling of hazardous waste. CERCLA ("superfund") gives the EPA authority to pursue money from companies responsible for creating hazardous waste sites to remediate them. |
| give one example of household waste that might be considered hazardous waste. What specific property of this waste would cause it to be hazardous? | there are several examples/ used motor oil is combustable. rechargeable batteries are reactive and potentially explosive. electronic water contains multiple carcinogenic and tertogenic compounds. |
| summarize what occurred during the khian sea waste disposal incident. what international agreement was drafted to stop further incidents like this? | barge that was hired to dispose of toxic incinerator ash produced by Philadelphia. ship made several attempts at unloading the ash at other countries before dumping it into the ocean Basel Convention was signed to put it to an end |
| what form of waste is still heavily exported in spite of this agreement | electronic waste |
| give an example of high level and low level nuclear waste | high level waste includes depleted fuel rods. low level waste includes the protective gear worn by the workers of nuclear power plants |
| if an element of high level waste has a half life of 3 days how long would take before less than 5% of the material remained | 100% - 50% - 25% - 12.5% - 6.25% - 3.125% = 5 half lives. 5 half lives x 3 days = 15 days. |
Created by:
EmmaRoseDavis