1. Intro of envir engg lab.fujkkl;jmnnbj

environment and the other day that works for me and I will be able to come to the point

1. Environmental Laboratory Analysis –I /
WSEE-2072
Dr. P. Asaithambi, M.Tech., Ph.D, Post-Doc.,
Assistant Professor,
Under Environmental Engineering Chair,
JIT, JU.
Introduction of Environmental
Engineering Laboratory

2. Introduction of Environmental Engineering
Laboratory
Outline
➢Chemistry
➢Biology
➢MaterialsandEnergyBalances
➢Ecosystem
➢RiskPerception
➢AssessmentandManagement
2

3. Introduction of Chemistry
3

4. Introduction of Chemistry
4

5. Introduction of Chemistry
5

6. Introduction of Chemistry
6

7. Introduction of Chemistry
7

8. Introduction of Chemistry
8

9. Introduction of Chemistry
9

10. Inter-relationshipoforganismsandwiththeirenvironment.
Environmental Biology
1
0

11. Biosphere
➢Lifeissupportedontheearthwithinarelativelythinenvelopofair.
➢Thislifesustainingenvelopeofearthiscalled“biosphere”.
Environmental Biology
1
1

12. Environment
➢Thesurroundinginwhichorganismlivesiscalleditsenvironment.
➢Itincludessuchnonlivingthingsaslight,water,airandsoil.
➢Italsoincludesalltheotherlivingthingsofthearea.
Environmental Biology
1
2

13. Ecology
Therelationshipoflivingthingsofanareawitheachotherand
withthenonlivingthingsoftheirenvironmentiscalled
environmentalbiologyorsimply“ecology”.
Environmental Biology
1
3

14. Habitat
Theareaorplacewhereanorganismlivesiscalledits
“habitat”.
Environmental Biology
1
4

15. Population
Agroupofsamekindoforganismslivingtogetherinthesame
habitatiscalledthe“population”.
Environmental Biology
1
5

16. Community
Manydifferentkindsoforganismslivingtogetherinthesame
habitatmakeupa“community”.
Environmental Biology
1
6

17. Themembersofacommunitycanbedividedintothreemajorgroups
onthebasisofhowtheygetfood.
Components of acommunity
1
7

18. Producers
➢Allthegreenplantsarecalledproducersbecausetheycanmake
theirfoodthemselvesfromH
2OandCO
2bysunenergy.
➢Producersaretheprimarysourceofenergyforotherorganisms.
➢Henceallthemembersofacommunitydepends,directlyor
indirectlyontheproducers.
Components of acommunity
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8

19. ➢Theanimalsandallotherorganismsthatcannotmaketheirfood
arecalledconsumers.
➢Theycannotusethemoleculesof‘nonlivingworld’.
➢Theyeatotherorganisms.
➢Consumersareofthreetypes:Herbivores,Carnivoresand
Omnivores.
Consumers
Components of acommunity

20. Decomposers
➢Manybacteriaandfungidonoteatlivingorganismsandareunable
tomaketheirfoodthemselves.
➢Theydependondeadorganismsandextracttheirfoodby
decomposingthesedecayingorganisms.
➢Indoingsotheybreakdownthecomplexorganicmoleculesof
deadplantsandanimalsintosimpleinorganicsubstanceswhichare
returnedtoenvironment(towater,soilandair).
Consumers
2
0

21. Ecosystem
Theinterdependencehenceinteractionofalltheorganismsofa
communitywitheachotherandwiththeirnonlivingenvironmentiscalled
ecologicalsystemorsimplyanecosystem.
2
1

22. Components of a PondEcosystem
Bioticcomponents
Therearetwotypesofcomponents:AbioticandBioticcomponents
Abioticcomponentsincludethefollowing:
➢Water
➢Sunlight
➢Oxygen
➢Carbondioxide
➢Nitrogen
➢Calcium
➢Phosphorus
➢Salts
➢Mostofthenutrientsare
availableinamplequantity
particularlyatthebottomofthe
pond.
➢Oxygenandcarbondioxideare
availableinfreeaswellasin
dissolvedformandtheir
concentrationvariesduetothe
photosynthesisactivityofthe
producersofthepond.
2
2

23. Materials Balance or law of conservation of mass
➢Everythinghastogo
somewhere.
➢matterisneithercreatednor
destroyed.
Glassofwaterorsimplechemical
mixingtank,toanentirecoal-fired
powerplant,alake,astretchof
stream,anairbasinaboveacity,
ortheglobeitself.
Asubstancethatentersthecontrolvolumehasfourpossiblefates.
(1)mayleavetheregionunchanged,(2)mayaccumulatewithinthe
boundary,(3)maybeconvertedtosomeothersubstanceand(4)more
substancemaybeproduced.
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3

24. Energy Balances
ThetotalenergyEthatasubstancepossessescanbe
describedthenasthesumofitsinternalenergyU,its
kineticenergyKE,anditspotentialenergyPE:
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4

25. 25
Safe Water