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"incinerator" - 3 õppematerjali

Dioxins and furans in the atmosphere
13
pptx

Dioxins and furans in the atmosphere

milk, dairy products. How can you be exposed to dioxins and furans? You can be exposed to dioxins and furans by eating contaminated food. Dioxins and furans typically stay and build up in the fatty tissues of animals. This means that eating beef, pork, poultry, fish as well as dairy products can be a source of exposure. There are several sources of exposure to dioxins and furans. If you work in or near a municipal solid waste incinerator, copper smelter, cement kiln or coal fired power plant you can be exposed to dioxins and furans. Individuals who burn their household waste or burn wood can be exposed as well. Even forest fires can contribute to the creation of small amounts of dioxins and furans. Dioxins and furans have been found in the air, soil, and food. Dioxins and furans are mainly distributed through the air. However, only a small percentage of exposure is from air

Keeled → Inglise keel
4 allalaadimist
Green Energy presentation
36
ppt

Green Energy presentation

· Empty spray cans Die Anderen Bio / Household Miscellaneous (Orange Bin) · Citizens are urged to keep · This newly added a compost bin at their category has been home developed for the · An alternative is to dispose of old food and garden collection of misc. waste in the gray bin to be non-packaging items sent to the incinerator. · Frying pans · Household waste includes: · Appliances ash , cigarette butts, personal hygiene products, · Broken plastic toys nylon stockings, and · CD's others Interesting Statistics · Germany leads European nations in recycling, with around 70% of the waste the country generates successfully recovered and reused each year · In 2007, the US was able to recover only about 33% of the waste generated that year

Keeled → Inglise keel
7 allalaadimist
Konspekt 2 vaheeksami küsimused ja vastused
33
doc

Konspekt 2 vaheeksami küsimused ja vastused

Põletamine on jäätmete termilise töötlemise üks meetodeid. Põletamisel väheneb märgatavalt jäätmete hulk, eelkõige ruumala. Olmejäätmete maht väheneb 70-90 % ja kaal kuni 70 %. Samal ajal tekib põletamisel soojusenergiat. Olmejäätmetes sisalduv energiahulk sõltub jäätmete koostisest. Keskmiselt vastab 1 tonn olmejäätmeid 0,5 tonnile kivisöele või 0,2 tonnile kütteõlile. Jäätmete põletamine toimub spetsiaalsetes põletusjaamades või -tehastes (ingl.k. incinerator), mille ülevaateskeem on toodud joonisel 4.9. Olmejäätmete põletamise temperatuur peab olema vähemalt 800-850oC, ohtlikel jäätmetel vähemalt 1100oC. Rakendada tuleb järgmisi täiendavaid abinõusid põletusprotsessi potentsiaalsete keskkonnamõjude vähendamiseks: - põletamisel tekkivad suitsugaasid tuleb kiiresti jahutada allapoole temperatuuripiirkonda 300-600oC, et vältida dioksiinide teket; - suitsugaasid tuleb enne atmosfääri juhtimist puhastada;

Ökoloogia → Ökoloogia ja...
313 allalaadimist


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