PHOTO - BIOREACTORS

8/19/2019 PHOTO - BIOREACTORS

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PHOTO-BIOREACTORS

Prepared By:- Gagandeep Singh ( B.E. IV Chemical)

Guided By:- Mr Chirag A. Tam!li


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In"r!duc"i!n

A bioreactor is a manufactured or engineered device or system that suorts a

bio!ogica!!y active environment"

Tyes of Bioreactors# a$ Photo-Bioreactor"

b$ Se%age Treatment Bioreactor"

c$ Agitation Bioreactor"

Photo-Bioreactor# It is the one that uti!i&es a !ight source to cu!tivate hototroic

microorganisms"

These organisms use hotosynthesis to generate biomass from !ight and

carbondio'ide" Biomass can be derived from nutrient-rich %aste %ater and carbondio'ide in a

hoto-bioreactor"

htts#((en"m"%i)iedia"org(%i)i(Bioreactor


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Advantages #-

a$ Prevents Contamination"

b$ Permits cu!tivation of a'enic a!ga! monocu!ture"

c$ Permits roduction of com!e' bioharmaceutica!s"

d$ Bio!ogica! conversion at mi!d temerature and ressure conditions"

e$ Reaction secificity is higher"

f$ *iverse array of ra%-materia!s as feedstoc)s"

*isadvantage #- Cost!y"

htt#((%%%"o%er!antsccs"com(ccs(ca(fut(a!g(costs+of+br"htm!

htt#((%%%"y!eme,uimentmachinery"com(hotobioreactors"htm!

Capaci"y ("!nne#

!$ i!ma## perday)

%eng"h (me"re#) Area (acre#) C!#" (Eur!#)

./0 ."1 20.3...

2. 241// 55 / mi!!ion

http://www.powerplantsccs.com/ccs/cap/fut/alg/costs_of_pbr.htmlhttp://www.powerplantsccs.com/ccs/cap/fut/alg/costs_of_pbr.html


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So!ari&ed air!ift tubu!ar Photo-Bioreactor

6sed for cu!tivation of microa!gae Chlorella Vulgaris.

Air!ift device functions as a um to remove o'ygen roduced"

Continuous remova! of o'ygen is necessary"

PBR geometry#- 7a'imum cature of hotons %ith minimum !and sace"

/th vacuum and surface sciences conference of Asia and Austra!ia# IOP Pub!ishing 8ourna! of hysics # conference series 149"

*oi#.".00(:15-/29/(149((.5.4/


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Schematic of So!ari&ed air!ift tubu!ar Photo-bioreactor"


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Air!ift system induces circu!ation of f!uid through continuous tubu!ar !oo%here hotosynthesis reaction ta)es !ace"

The o'ygen roduced is searated in the air!ift section"

A !i,uid or s!urry oo! at to of riser and do%n-comer tubes revents gas

bubb!es from recircu!ating"

A transarent Borosi!icate g!ass continuous !oo is designed to ensurema'imum hoton caturing"

*iameter of tubing is so se!ected that dar) &one is )et minima!"

/th vacuum and surface sciences conference of Asia and Austra!ia# IOP Pub!ishing 8ourna! of hysics # conference series 149"

*oi#.".00(:15-/29/(149((.5.4/


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;!at !ate Photo-Bioreactor

This tye of Bioreactor main!y aims in roducing Hydrogen by means of

hotosynthesis"

The green a!gae C"Reinhardtii has the abi!ity to roduce H5 under anaerobic

conditions"

Some of the reactor design arameters are# a$ Temarature"

b$


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This reactor consists of t%o comartments# Primary and secondary"

Primary comartment contains # a$ a!ga! cu!ture"

b$ 7I7S system"

Secondary comartment contains an a,ueous so!ution and is used to contro!temerature"

arious co!oured ions may be used to contro! intensity of i!!umination"

Primary and secondary comartments are machined %ith PERSPE s!abs"

*et!ef Sto!ten3 Thomas =rube >Eds"$# 0th ?or!d Hydrogen Energy Conference 5.. - ?HEC 5.. Para!!e! Sessions Boo) 5# Hydrogen Production

Techno!ogies + Part Proceedings of the ?HEC3 7ay /"-5" 5..3 Essen Schriften des ;orschungs&entrums 8@!ich ( Energy Environment3 o!" :0-

5 Institute of Energy Research - ;ue! Ce!!s >IE;-4$ ;orschungs&entrum 8@!ich =mbH3 entra!bib!iothe)3 er!ag3 5.. ISBD# 9:0-4-0944/-/25-"


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Photo-Bioreactor for biodiese! roduction

Biodiese! is a grou of fatty methy!-esters roduced by trans-esterification

bet%een fatty acid and a!coho!"

Here a!gae used are sim!e unice!!u!ar organisms"

Biodiese! roduction from a!gae consists of t%o stes #

a$ E'traction of oi! using suitab!e so!vent"

b$ Trans-esterification to give biodiese!"

;igure sho%s a Photo-Bioreactor for biodiese! roduction"

D)ongo!o mu!umba et a!3 ( Internationa! 8ourna! of engineering science and techno!ogy >I8EST $


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This reactor consists of a main tan) connected to t%o sira! tubes in series"

Cu!ture medium is umed to tubes using a um" Tubes rovide an area of 5. ft5 e'osed to !ight"

Air comressor used for aeration and to serve as a source of CO5

The roduced biomass is then mi'ed %ith methano! in resence of a!)a!ine

cata!yst such as FOH or DaOH to roduce biodiese!"

D)ongo!o mu!umba et a!3 ( Internationa! 8ourna! of engineering science and techno!ogy >I8EST$

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PHOTO - BIOREACTORS