Hazardous Waste.pptx

7/21/2019 Hazardous Waste.pptx

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2/21

Hazardous Waste

Any discarded solid or liquid that is:

Toxic

Damaging if inhaled, ingested or even

touched in some cases

carcinogenic, teratogenic comounds


3/21

Hazardous Waste


!gnita"le

#as, aints


4/21

Hazardous Waste


$r %orrosive

"leach, acids, "ases


5/21

Hazardous Waste

Any discarded solid orliquid that is:

&eactive

%aa"le of "eing exlosive

or releasing toxic fumes

'itro glycerine, chlorine

"leach, ammonia


6/21

(olutions)

*roduce less Detoxifyhysically ex+ iltering, chemical

rxns to less harmful su"stance

(ecial storage-glass, cement. /ioremediation-using life.

*hytoremdiation-using lants.

&hizofiltration

*hytosta"ilization fig+ 01234

*hytodegradation

*hytoextration


7/21

Inorganic metal contaminantsOrganic

contaminants

Radioactive

contaminants

Brake fernPoplar tree

Indian

mustard

Oil

spill

Groundwater

Soil Soil

Groundwater

Polluted

Groundwater in

Pollutedleachate

Decontaminate

d

water out

Landfill

Willow tree

Phytoextraction

Roots of plants such as Indian

mustard and rake ferns can

asor to!ic metals such as

lead" arsenic" and others and

store them in their leaves#

Plants can then e rec$cled orharvested and incinerated#

Phytodegradation

Plants such as poplars

can asor to!ic organic

chemicals and reak

them down into less

harmful compounds

which the$ store orrelease slowl$ into the

air#

Phytostabilization

Plants such as willow

trees and poplars can

asor chemicals and

keep them from

reaching groundwater

or near$ surfacewater#

Rhizofiltration

Roots of plants such as

sunflowers with dangling roots

on ponds or in greenhouses

can asor pollutants such as

radioactive strontium%&' and

cesium%()* and variousorganic chemicals#

Sunflower


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Hazmat landfills


9/21

$ther Hazardous 5aterial

Disosal !deas6

Dee underground 7ells

8iquid hazardous 7astes

are umed under ressure

through a ie into dry,

orous geologic formation

of roc9 far "eneath aquifers

taed for drin9ing+


10/21

$ther Hazardous 5aterial

Disosal !deas6

(urface !moundments

xcavated deressions li9e

onds ; lagoons into 7hich

liquid hazardous 7astes

are drained and stored+


11/21

%ase (tudies:

8ead 8ead oisoning ma@.

8ead in lum"ing that is

leached out

8eaded aint in childrens toysfrom china


12/21

5ercury

ish cont min ted 7ith

methylmercury

' tur l inuts

:mission control

/urning co l -; 7 ste.

'e7 %8 light"ul"s cont in mercury222

if thro7n 7 y "ro9en or crushed t

l ndfill, this c n le ch into soil or

7 ter sources+

/iom gnified

'eurologic l ro"lems


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AIR WINDS PRECIPITATION WINDS PRECIPITATION

WATE

R

SEDIMEN

T

IOMA!NI"ICATIO

NIN "OOD C$AIN

$%&an

so%rces

Ele&ent

al

&erc%ry

'a(or

)$g*

Inorgani

c

&erc%ry

and

acids)$g+,*

Inorganic

&erc%ry

and acids

)$g+,*

-arge

fishS&all

fish

.oo(lan/ton Phyto(lan/t

on

Ele&ent

al

&erc%ry

li0%id

)$g*

Inorgani

c

&erc%ry

)$g+,*

Organic

&erc%r

y

)C$1$g

,*

De(osition

2a

(o

riz

atio

n

De

(osition

De

(os

ition

Settles o%t

acteri

a

acteria

and acids

Settles o%t

Oxidation

Incinerato

r

Coal3

b%rning(lant

Photo3

che&ical

oxidation

$g and SO+$g+,and acids $g+,and acids

Settles o%t

R%noff of $g+,and acids


14/21

Dioxins

*otentially highly toxic chlorinated

hydrocar"ons

They are an unintentional side effect of

com"ustion (ources

Waste incineration

irelaces

%oal2fired o7er lants *aer roduction

(e7age sludge


15/21

*%/=s %ontain car"on, hydrogen and

chlorine

Bsed as cooling fluids,

hydraulic fluid, fire retardants,

lu"ricants, old lastics,

adhesivesC/anned =@@

Harms eyes, s9in, reroductive

organs ; #! system

ndocrine disrutor, interferes

7ith thyroid gland+

/iomagnify ; highly ersistent


16/21

Haz+ Waste &egulation in B(

3>@?2 &%&A -&esource %onservation and&ecovery Act.

#oals:

*A !D=s haz+ Wastes ; sets management standards

5ust have ermit to store, treat or disose of more than 00 oundsof haz+ 7aste er month

*ermit holders must use a cradle to gravesystem+ 5ust have a ermit to roduce it

resonsi"le for follo7ing the roduct from "irth, use, till death+


17/21

%&%8A ; (uerfund

%omrehensive nvironmental

&esonse, %omensation ;

8ia"ility Act

Taxes chemical ra7 materials 7hich

rovides a trust fund to achieve goals+

und is called the (uerfund


18/21

#oals of %&%8A

!D a"andoned haz+ 7aste dum sites

*rotect ; clean u ground7ater near

sites

%lean u sites+ &esonsi"le arties mustay for cleanu - if they can "e found. or

gov 7ill clean u using (uerfund+

*ut 7orst sites on *riority list


19/21

!ndustries :mitting

8 rgest Amounts of

Toxic Air *ollut nts

5ining

lectric Btilities

%hemical *roduction

*rimary metal roduction

E (t tes 7ith

5ost (uerfund

(ites

'e7 Fersey -33.

%alifornia ->?.

*ennsylvania ->0.

'e7 Gor9 ->. 5ichigan -?@.

(anta %lara %ounty,

%A -AA (iliconIalley has more

sites than any other

county+


20/21

&eusing Dangerous (ites

/ro7nfields: a"andoned industrial and

commercial sites contaminated 7ith

haz+ Waste+

cleaned u turned into6

*ar9s

nature reserves

athletic fields

neigh"orhoods

after toxic material is removed from soil ;

ground7ater+


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!nternational2

*$* Treaty Bses recautionary rincile

/y 00, no more *$*6 fought heavily "y B(industry

8imits hazardous 7aste exorts

%ontrol 30 Jersistent organic ollutantsK -*$*s.

they "iomagnify

DDT, %l2 esticides, *%/=s, furans ; dioxins

Documents

Hazardous Waste.pptx