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Introduction I ) What are toxic waste and what are chemicalsI ) What are toxic waste and what are chemicals
1) Where do they come from ?2) What does toxic waste contain ? 3) What’s radioactivity ?
II ) Consequences on the environmentII ) Consequences on the environmentIII ) Solutions to reduce toxic wasteIII ) Solutions to reduce toxic waste
1) Select and recycling2) Prevention !
IV ) Our opinion about toxic waste IV ) Our opinion about toxic waste Vocabulary and definition
Human activity produces millions of tons of waste. They are very different :
Waste : déchetsS.I.W : Special Industrial Waste
Yearly : in 365 days
A toxic substance causes desorders of vital function.
S.I.W come from chemicals, steal metallurgy, smelting works industries.
There is : -organic waste -inorganic waste -solid mineral waste
Toxic waste can be:-chemicals of laboratory -photographic baths-painting, glues, vernish…
Vital function :
ex: respiratory, heart..
Steal metallurgy :
Industries de métallurgie
Smelting works industries:
Industries de fonderies
Tar : solvants
• Heavy metals are cadmium, copper, mercury, plumb, arsenic fluorine…
HEAVY METAL ARE TOXIC !!
Heavy metal : métaux lourds
Cyanides: cyanure CN-
Sand of foundry: sable de fonderie
Cyanided salts : sels cyanurés
Photographic baths : bains photographiques
Paintings, vernish, glues: peintures, vernis, colles
Cartridges for printers : cartouches d’imprimante
Cadmium : Cd
Copper : cuivre Cu
Mercury : mercure Hg
Plumb : plomb Pb
Arsenic : arsenic As
Fluorine : fluor F
Treatements of grapevine : traitements des vignes
Intensive pig breeding : élevage intensif de porcs
As
Radioactivity is transformation of chimical elements in other more frivolous element.
Radioactivity => dangerous X-rays => matter become ion
Improve : améliorer Quote : citer
Batteries : piles plumb hose : tuyaux en plomb
II) Consequences on the environment
• Toxic wate => illnesses, asthma, allergies
• Poisoning by plumb is saturnism digertive problems and development problems for babys
• Poisoning by asbestos is carcinogenic
Pregnant woman : femme enceinte
Asbestos : amiante carcinogenic : cancérigène
Butt :1 to 2 years
Piles : more than 50 years
Can : Until a century
Packaging aluminium : approximately 200 years
Plastic bag : between 100 and 1000 years
Glass : 3000 years
* 32% in recycling matters
* 17% in treatment for their elimination
* 51 % in garbage
Organic waste are incinerated
Inorganic waste are treated physically
Solid mineral waste are stored in garbage
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