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Kinetic study of nu...
Kinetic study of nutrients removal from municipal wastewater by Chlorella vulgaris in photobioreactor supplied with CO2-enriched air
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- Chaudhary, Ramjee (författare)
- Indian Inst Technol, Ctr Environm Sci & Engn, Environm Infrastruct & Clean Technol EICT Lab, Mumbai 400076, Maharashtra, India.;Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore.
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- Tong, Yen Wah (författare)
- Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore.;Natl Univ Singapore, Environm Res Inst, Singapore, Singapore.
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- Dikshit, Anil Kumar (författare)
- Mälardalens högskola,Framtidens energi,Asian Inst Technol, Sch Environm Resources & Dev, Klongluang, Thailand.
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Indian Inst Technol, Ctr Environm Sci & Engn, Environm Infrastruct & Clean Technol EICT Lab, Mumbai 400076, Maharashtra, India;Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore. Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore.;Natl Univ Singapore, Environm Res Inst, Singapore, Singapore. (creator_code:org_t)
- 2018-08-17
- 2020
- Engelska.
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Ingår i: Environmental technology. - : TAYLOR & FRANCIS LTD. - 0959-3330 .- 1479-487X. ; 41:5, s. 617-626
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The microalgae Chlorella vulgaris ATCC 13482 was used in the present study for municipal wastewater treatment. Batch experiments were performed in bubble column photobioreactors of 7 L working volume maintained at 25 +/- 2 degrees C and 14 h/10 h of photo and dark cycle. The treatment process was enhanced by using CO2-augmented air (5% CO2 v/v) supply into the microalgal culture in comparison to the use of normal air (0.03% CO2 v/v). For a period of 7 days, C. vulgaris effected maximum removals of 74.4% soluble fraction of chemical oxygen demand, 72% ammonia (NH4-N), 60% nitrate (NO3-N) and 81.93% orthophosphate (PO4-P) with use of normal air, whereas 84.6% sCOD, 88% NH4-N, 72% NO3-N and 92.8% PO4-P removals, respectively, with use of 5% CO2/air supply. Using kinetic study data, the specific rates of ammonia and phosphate uptake (q(ammonia) and q(phosphate)) by C. vulgaris at 5% CO2/air supply were found to be 2.41 and 0.85 d(-1), respectively. Using the algal remediation technology, nitrogen-phosphorus-potassium recovery from sewage treatment plant of 37.5 million litres per day wastewater influent capacity was calculated to be similar to 298.5, 55.4 and 83.7 kg d(-1), respectively.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology (hsv//eng)
Nyckelord
- Chlorella vulgaris
- kinetic study
- municipal wastewater
- nutrient bioremediation
- photobioreactor
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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