Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater
The increasing levels of generation of wastewaters which are nutrient rich pose serious issues where conventional biological and chemical methods of treatment have failed in meeting sustainability challenges. In this study naturally occurring mixed algal species reared in mixotrophic growth modes ha...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Applied Science Innovations Private Limited
2015-04-01
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| Series: | Carbon: Science and Technology |
| Subjects: | |
| Online Access: | http://www.applied-science-innovations.com/cst-web-site/CST-7-2-2015/CST-132.pdf |
| _version_ | 1811317615794061312 |
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| author | Priyanka Murthy Chanakya H. N. |
| author_facet | Priyanka Murthy Chanakya H. N. |
| author_sort | Priyanka Murthy |
| collection | DOAJ |
| description | The increasing levels of generation of wastewaters which are nutrient rich pose serious issues where conventional biological and chemical methods of treatment have failed in meeting sustainability challenges. In this study naturally occurring mixed algal species reared in mixotrophic growth modes have been deployed to remove recalcitrant organics and recover high nutrient concentrations (N and P) from anaerobic digestor wastewater at short residence times of 6-7 days. Results from pilot scale operation show that the cultivation methods adopted and the use of naturally selected species lead to a tendency among these species to clump at certain stages of growth that in turn float or settle rapidly making algal harvest and thereby the nutrient recovery processes energy efficient. Algal biomass productivity in the liquid from anaerobic digestor of the consortia varied with season with a maximum of 6.3 g/m2/d. |
| first_indexed | 2024-04-13T12:11:20Z |
| format | Article |
| id | doaj.art-20738515df144b5d84b3e79edb48a413 |
| institution | Directory Open Access Journal |
| issn | 0974-0546 0974-0546 |
| language | English |
| last_indexed | 2024-04-13T12:11:20Z |
| publishDate | 2015-04-01 |
| publisher | Applied Science Innovations Private Limited |
| record_format | Article |
| series | Carbon: Science and Technology |
| spelling | doaj.art-20738515df144b5d84b3e79edb48a4132022-12-22T02:47:28ZengApplied Science Innovations Private LimitedCarbon: Science and Technology0974-05460974-05462015-04-0172109121Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewaterPriyanka Murthy 0Chanakya H. N.1Centre for Sustainable Technologies, Indian Institute of Sciene (IISc), Bangalore-560012, Karnataka, India Centre for Sustainable Technologies, Indian Institute of Sciene (IISc), Bangalore-560012, Karnataka, India The increasing levels of generation of wastewaters which are nutrient rich pose serious issues where conventional biological and chemical methods of treatment have failed in meeting sustainability challenges. In this study naturally occurring mixed algal species reared in mixotrophic growth modes have been deployed to remove recalcitrant organics and recover high nutrient concentrations (N and P) from anaerobic digestor wastewater at short residence times of 6-7 days. Results from pilot scale operation show that the cultivation methods adopted and the use of naturally selected species lead to a tendency among these species to clump at certain stages of growth that in turn float or settle rapidly making algal harvest and thereby the nutrient recovery processes energy efficient. Algal biomass productivity in the liquid from anaerobic digestor of the consortia varied with season with a maximum of 6.3 g/m2/d.http://www.applied-science-innovations.com/cst-web-site/CST-7-2-2015/CST-132.pdfMixed algal cultureNutrient recoveryHarvesting |
| spellingShingle | Priyanka Murthy Chanakya H. N. Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater Carbon: Science and Technology Mixed algal culture Nutrient recovery Harvesting |
| title | Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| title_full | Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| title_fullStr | Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| title_full_unstemmed | Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| title_short | Nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| title_sort | nutrient recovery and energy efficient algal harvest from anaerobic digestor wastewater |
| topic | Mixed algal culture Nutrient recovery Harvesting |
| url | http://www.applied-science-innovations.com/cst-web-site/CST-7-2-2015/CST-132.pdf |
| work_keys_str_mv | AT priyankamurthy nutrientrecoveryandenergyefficientalgalharvestfromanaerobicdigestorwastewater AT chanakyahn nutrientrecoveryandenergyefficientalgalharvestfromanaerobicdigestorwastewater |