Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation
Biogas slurry provides a complete and high growth rate producing algal cultivation medium thus offsetting the high cultivation costs of raising algal cultures in synthetic growth media. Robust mixed algal consortia can also be cultivated in non-traditional media such as wastewater or biogas slurry a...
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Applied Science Innovations Private Limited
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doaj-5fbca62896b3423e8e3d8f6c6f157b162020-11-24T22:44:06ZengApplied Science Innovations Private LimitedCarbon: Science and Technology0974-05460974-05462015-04-017299108Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predationAbitha R0Chanakya H. N.1Afreen Aman2Shwetha U.3Centre for Sustainable Technologies, Indian Institute of Science, Bangalore – 560012, India. Centre for Sustainable Technologies, Indian Institute of Science, Bangalore – 560012, India. Centre for Sustainable Technologies, Indian Institute of Science, Bangalore – 560012, India. Centre for Sustainable Technologies, Indian Institute of Science, Bangalore – 560012, India. Biogas slurry provides a complete and high growth rate producing algal cultivation medium thus offsetting the high cultivation costs of raising algal cultures in synthetic growth media. Robust mixed algal consortia can also be cultivated in non-traditional media such as wastewater or biogas slurry along with flooded agricultural crops such as paddy (Algiculture). This greatly enhances the Nsustainability of the algae cultivation. However, since the biogas slurry contains its own set of predators of algal biomass (grazers), it is now important to study the productivities attainable by using slurry in the conventional open ponds and Algiculture setup and understand its impact on grazer population dynamics. In this study we have used diluted biogas slurry (1:10) as growth media and compared algal growth and grazing /predation characteristics for algae cultivated under four treatments namely, Bold’s basal media (M), biogas slurry (S), Algiculture (ALGI), Algiculture with biogas slurry as growth stimulant (ALGI-S). The algal biomass cultivated in slurry based systems gave rise to a productivity of 6.8 g/m2/d as harvestable biomass with simultaneous reduction in the algal mass sacrificed to grazers. We thus attempt to show that biogas slurry may be used as a potential growth media especially in Algiculture system which tends to be vulnerable to grazer attack and loss of algal population. http://www.applied-science-innovations.com/cst-web-site/CST-7-2-2015/CST-131.pdfAlgaeSlurryBiogasNitrogenAlgal grazersAlgal biofuel |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Abitha R Chanakya H. N. Afreen Aman Shwetha U. |
spellingShingle |
Abitha R Chanakya H. N. Afreen Aman Shwetha U. Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation Carbon: Science and Technology Algae Slurry Biogas Nitrogen Algal grazers Algal biofuel |
author_facet |
Abitha R Chanakya H. N. Afreen Aman Shwetha U. |
author_sort |
Abitha R |
title |
Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
title_short |
Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
title_full |
Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
title_fullStr |
Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
title_full_unstemmed |
Biogas slurry – An alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
title_sort |
biogas slurry – an alternative growth media for algae cultivation in algiculture systems with simultaneous reduction algal predation |
publisher |
Applied Science Innovations Private Limited |
series |
Carbon: Science and Technology |
issn |
0974-0546 0974-0546 |
publishDate |
2015-04-01 |
description |
Biogas slurry provides a complete and high growth rate producing algal cultivation medium thus offsetting the high cultivation costs of raising algal cultures in synthetic growth media. Robust mixed algal consortia can also be cultivated in non-traditional media such as wastewater or biogas slurry along with flooded agricultural crops such as paddy (Algiculture). This greatly enhances the Nsustainability of the algae cultivation. However, since the biogas slurry contains its own set of predators of algal biomass (grazers), it is now important to study the productivities attainable by using slurry in the conventional open ponds and Algiculture setup and understand its impact on grazer population dynamics. In this study we have used diluted biogas slurry (1:10) as growth media and compared algal growth and grazing /predation characteristics for algae cultivated under four treatments namely, Bold’s basal media (M), biogas slurry (S), Algiculture (ALGI), Algiculture with biogas slurry as growth stimulant (ALGI-S). The algal biomass cultivated in slurry based systems gave rise to a productivity of
6.8 g/m2/d as harvestable biomass with simultaneous reduction in the algal mass sacrificed to grazers. We thus attempt to show that biogas slurry may be used as a potential growth media especially in Algiculture system which tends to be vulnerable to grazer attack and loss of algal population. |
topic |
Algae Slurry Biogas Nitrogen Algal grazers Algal biofuel |
url |
http://www.applied-science-innovations.com/cst-web-site/CST-7-2-2015/CST-131.pdf |
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