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المؤلفKashem, Abdurahman Hafez Mohammed
المؤلفDas, Probir
المؤلفAbdulQuadir, Mohammad
المؤلفKhan, Shoyeb
المؤلفThaher, Mahmoud Ibrahim
المؤلفAlghasal, Ghamza
المؤلفHawari, Alaa H.
المؤلفAl-Jabri, Hareb
تاريخ الإتاحة2023-05-23T09:39:15Z
تاريخ النشر2023
اسم المنشورScience of the Total Environment
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.scitotenv.2023.162384
معرّف المصادر الموحدhttp://hdl.handle.net/10576/43375
الملخصRapid aquaculture industry development contributed to a major increase in aquaculture wastewater generation. In the context of a circular economy, aquaculture wastewater treatment should simultaneously recover nutrients from the wastewater. Among many treatment methods, bioremediation using microalgae could be a cost-effective and environmentally friendly system that can be applied to treat aquaculture wastewater and simultaneously produce high-value microalgal biomass. This study explored the feasibility of treating brackish wastewater (0.8 % NaCl) generated from a Qatari commercial tilapia farm by microalgae. At first, 10 strains were grown using wastewater from the local farm in an indoor experiment. Based on nitrogen assimilation, biomass yield, biomass quality, and ease of harvesting, 4 candidate strains (Haematococcus sp., Neochloris sp., Monoraphidium sp., and Nostoc sp.) were shortlisted for outdoor growth experiments. Although Nostoc sp. could not grow outdoor in the wastewater, the other three strains were able to assimilate at least 70.5 % of the total nitrogen in the wastewater. Haematococcus sp. and Neochloris sp. could be harvested using self-settling, whereas Monoraphidium required an energy-intensive tangential flow filtration membrane process. Hence, the overall energy requirement for bioremediation, including biomass dewatering, for Haematococcus sp., Neochloris sp., and Monoraphidium sp. were determined as 0.64, 0.78, and 5.68 MJ/m3, respectively. Neochloris sp. had almost twice the biomass yield compared to Haematococcus sp. - suggesting that Neochloris sp. could be a potential candidate for aquaculture wastewater treatment. 2023 Elsevier B.V.
راعي المشروعThe authors would like to acknowledge the support of the Qatar National Research Fund (QNRF, a member of Qatar Foundation) for providing the funding (under grant GSRA8-L-2-0509-21037 ) for this study.
اللغةen
الناشرElsevier
الموضوعAquaculture wastewater
Biomass
Bioremediation
Microalgae
Neochloris sp
Tilapia
العنوانMicroalgal bioremediation of brackish aquaculture wastewater
النوعArticle
رقم المجلد873
dc.accessType Abstract Only


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