Bioremediation and lipid synthesis through mixotrophic algal consortia in municipal wastewater

Mahapatra, Durga Madhab; Chanakya, H. N.; Ramachandra, T. V.

doi:10.1016/j.biortech.2014.03.130

Cited by 134 publications

(45 citation statements)

References 32 publications

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“…The biomass productivity of the algae was calculated to be 24.5 mg/L/day. This was much lower than the earlier studies where 122.5mg/L/d was seen (Mahapatra et al, 2014) …”

Section: Algal Culture and Biomass Studiescontrasting

confidence: 71%

“…6, in the present study, total phosphates reduction after fifteen days was 64.7% and total reduction was seen to be 88.235% after 45 days. These results are higher as compared to 70% removal (Mahapatra et al, 2014), 72% removal (Wang et al, 2013), 70% removal (Kothari et al, 2013) in dairy effluent. But it was a little lower than phosphate removal in piggery wastewater treatment which was more than 90% within five days.…”

Section: Wastewater Treatmentmentioning

confidence: 81%

“…Because of this reason, the treatment of the wastewater and its proper disposal is one of the major concerns and challenges being faced in the urban areas. The techniques used during the wastewater treatment usually results in a partial treatment of wastewater or it is sometimes released in the receiving water body completely untreated (Mahapatra et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…A lot of these techniques are applied for the nutrient removal process as well. The disadvantage of using conventional treatment methods for nutrient removal is that they require a high cost, highly energy intensive (Mahapatra et al, 2014) and lead to an increased sludge production (Yuan et al, 2011). In the past, a very special attention has been given on the removal of nitrogen and phosphates using conventional methods (Blackall et al, 2002;Mallick et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Study of Nutrient Utilization from Wastewater by Algae

2016

IJSR

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Nutrient pollution of wastewater and its treatment is currently one of the biggest challenges being faced in waste management in India. As nutrient pollution leads to eutrophication and algal bloom, the present research aims to reduce the nutrient load in wastewater using microalgae, before its release in water bodies. Microalgae was successfully isolated from municipal wastewater fed urban lake in Bengaluru and inoculated in domestic wastewater to carry out the treatment. Growth curve analysis and biomass studies were carried out on the microalgae isolated from lakes. The dry algal biomass was found to be 1.078gm/L and biomass productivity was 24.5mg/L/d. The nutrient removal efficiencies were found to be 33.33%, 66.66%, 80%, 88.88% and 88.235% for Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), Nitrate Nitrogen and Total Phosphates respectively. Crude lipid extracted was 22.54% of the weight of dry algae.

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“…The biomass productivity of the algae was calculated to be 24.5 mg/L/day. This was much lower than the earlier studies where 122.5mg/L/d was seen (Mahapatra et al, 2014) …”

Section: Algal Culture and Biomass Studiescontrasting

confidence: 71%

Section: Wastewater Treatmentmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study of Nutrient Utilization from Wastewater by Algae

2016

IJSR

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“…wastewater was introduced for the microalgal biomass production and could be used as a culture medium as well as a source of water. A recent report indicates that practices involve the use of algae for bioremediation (Mahapatra et al, 2014;McGinn et al, 2012;Saratale et al, 2010;Subashchandrabose et al, 2012;Yu et al, 2009). A recent report indicates that mixotrophic chlorophycean members (Chlorococcum sp.)…”

Section: Introductionmentioning

confidence: 99%

Evaluation of autotrophic and mixotrophic regimen Chlorella pyrenoidosa cells in various wastes water for its biochemical composition and biomass production

Dhull

Soni²,

Rahi

et al. 2014

Preprint

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The present study investigates the possibility of integrating an existing industrial large scale biomass production with the treatment of waste water in which a mixture of organic and inorganic rich pollutants was used as a medium. This study suggests that the replacement of a defined medium with a complete mixotrophic medium gives a significant statistical difference in terms of growth parameters i.e. biomass production and specific growth rate.The green microalga C. pyrenoidosa was cultivated under different mixotrophic conditions for evaluation of biomass production. Inorganic defined fog's medium supplemented, with raw dairy wastewater led to 1.37g/L biomass production in comparison to 1.2g/L obtained with pure glucose revealing 14.16% increase. The study also involves the supplementation of raw dairy wastewater as an organic carbon source in an inorganic medium comprising municipal treated water and reverse osmosis (RO) treated wastewater and attained 2.4g/L and 1.6g/L of biomass respectively, as compared to 0.3g/L and 0.16g/L obtained in the wastewaters alone revealing 700% and 900% increase respectively. Mixotrophic regimen cells as analyzed by a 2D Fourier transform infrared (FTIR) spectroscopy for its biochemical content revealed that fog's blended raw dairy waste (RDW) regimen cells had maximum

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