environmental microbiology and biotechnology.pptx

7/24/2019 Environmental Microbiology and Biotechnology.pptx

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EnvironmentalMicrobiology and

BiotechnologyBiol 473



What is Environment?Interaction of all biotic and abiotic factors

Abiotic factors include air, water, soil,minerals, sunlight, rain

Biotic factors include animals, plants,

microorganisms, human beings



BiosphereBiosphere is the living part of the planet

Earth

All areas or ecos!stems

Ecos!stem can live without us, we cannot



Biotechnolog! "echni#ues for utili$ing living organisms or

their parts for ma%ing products

"ransgenic animals, plants, microorganisms



Environmental

Biotechnolog! "reatment of contaminated ecos!stems&olid wastes, contaminated air, li#uid wastes

It includes use of microorganisms

E'amples are bacteria, !east and even

unicelluar protists



(rowth of Biotech )ompanies in (erman!



Industries that are ma%ing di*erent products in (erman!



+icroorganismsound ever!where

&peci-c to speci-c environments

We can get a solution out of the problem

E'ample salinit! tolerance in the organismsliving in saline areas



.nderstanding the role of

microorganism in biogeochemical c!cles+icroorganisms pla! ver! important roles

"hese ma%e the resources available for theplants

If we e'hausted our land for some nutrients

then microorganisms can help



+icroorganisms and waste/s

treatment+icroorganisms are the natural decomposers

We can use this propert! to clean up almostever! %ind of wastes

+icroorganisms are used for cleaning solid

wastes, li#uid wastes and even have potentialfor cleaning nuclear wastes



SINGLE BACTERIUM

2!

m

"RGANIC #"LLUTANTAN$ NUTRIENTS%C&#&N&"&'e&S(()

GR"*T+ , CELL $I-ISIINCREASE IN BI"MASS

C"2 evolved

"2 con./m0tion



0rganic matter'ermented

Acetic Acid

12 )02

1

)14 )02 120

Methanogene.i.

Biogas production



Waste water treatment

plants)10 )02 5 120

AerobicAnaerobic

+i'ed processes

+ultiple microbes

+icroorganisms



0'idation ond



)10 0rganic acid )02 5 12& 5 13 5 )14



6rin%ing water testingE. coli

"hresholds of various bacteria

seudomonas in hospitals



&olid waste treatments

&olid wastes could not onl! bedegraded b! bacteria but we canconvert it to useful products li%e

biogas



0il spills(ulf oil and gas spill

+ethane utili$ed b! bacteria, about 2,tons

0il also used b! bacteria

But problem is ano'ic $ones in sea leading todisturbed ecos!stem



uclear waste6einococcus

1ave pigments and absorption mechanisms

0ther as well8 "he bacteria, called Geobacter sulfurreducens,

transfer electrons via the pilus to the metals thatthe! feed o* of "ransferring the electrons gives thebacteria energ! It also changes the ioni$ation stateof the metal, changing it to a form that precipitatesout of water A colon! of Geobacter living near apile of nuclear waste would e'tract the uranium,ma%ing it easier to handle and remove:



+icroorganisms can provide

useful solutions for dealing withman! environmental problems

environmental microbiology and biotechnology.pptx

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