Waste
Waste
Waste
Set of flashcards Details
| Flashcards | 36 |
|---|---|
| Language | Deutsch |
| Category | Biology |
| Level | University |
| Created / Updated | 19.07.2017 / 25.08.2017 |
| Licencing | No Copyright (CC0) (Waste) |
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Give a Definition of matter. What is the difference between Micro and macronutriens? Write examples
Matter are elements (Carbon, nitrogen, oxygen) or molecules (water)
macro: relatively large amount, big six: carbon, Hydrogen, Oxygen, nitrogen, phosphorous, sulfur
micro: very small amount --> still necessary. , boron(Green plants), copper (some enzymes)
What is the Most common municipal waste treatment technology in EU? What other treatment options can be applied?
Recycling
-> landfill, Compositing, incineration
What is the standard of waste sorting analysis? What is the size of bulk, middle & Fine waste fracions
Waste--->Screening 40mm (--> manual sorting >40mm ) ---> screening 10 mm (--> manual sorting 10-40mm) --> organics/minerals >10mm
bulk Fraction >40mm
middle fraction 10-40mm
fine waste <10mm
What are the 3 Main Levels & responsibilities of waste Management architecture?
government (Sets waste policy & national targets)
province or regional level (prepares & implements detailed strategies for delivering national targets)
municipal Level ( carries out waste management operations (collection and perhaps disposal) determines costs, control tenders for Service delivery)
What are the Main driving forces for the waste Management?
Sanitation
landfills produce greenhouse gases like methane, co2
Write 3 Main Factors that have to be considered for the landfill siting? Give examples
Environmental criteria: distance from rivers, wells, Springs, drinking water wells, ground water)
economical criteria: distance from city, Land use (Cost), distance from roads of other Means of transport
social-cultural-criteria: distance from residential area, historical Sites , Wind direction
Which treatment technologies can be applied for the landfill leachate? (Sickerwasser)
Biological treatment:
adsorption
oxidation
ultra-/nanofiltration
Which options can be used for the landfill Gas collection and utilization?
collection:
horizontal wells or vertical drains
Embedded in coarse inert material, e.g. Gravel
utilization: for Energy recovery, otherwise Flaring
heat and electric Energy production
