Treatment of African catfish, Clarias gariepinus wastewater utilizing phytoremediation of microalgae, Chlorella sp. with Aspergillus niger bio-harvesting

Nasir, Nurfarahana Mohd; Bakar, Nur Syuhada Abu; Lananan, Fathurrahman; Hamid, Siti Hajar Abdul; Lam, Su Shiung; Jusoh, Ahmad

doi:10.1016/j.biortech.2015.03.023

Cited by 88 publications

(38 citation statements)

References 29 publications

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“…After 5 days of treatment, the maximum COD, nitrate, nitrite, ammonium, and total phosphorus removal efficiency were 88.9–94.4%, 85.7–97.1%, 94.3–99.8%, 97.9–98.9%, and 90.2–98.9%, respectively. All of these five microalgae (especially P. kessleri TY) exhibited high pollutant degradation capability in real aquaculture wastewater, which was comparable with the performance of microalgae in aquaculture wastewater reported previously . The maximum COD, nitrate, nitrite, ammonium, and total phosphorus removal efficiencies from aquaculture wastewater without inoculation of these five microalgae were 50%, 42.86%, 18.49%, 14.88% and 13.67%, respectively.…”

Section: Resultssupporting

confidence: 82%

“…At present, several studies have demonstrated that microalgae can grow in aquaculture wastewater . In addition to the removal of nitrogen, phosphorus, and other pollutants from aquaculture wastewater, microalgae can also accumulate protein and/or lipid, which can subsequently be used to produce aquaculture feed and biofuel .…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the removal of nitrogen, phosphorus, and other pollutants from aquaculture wastewater, microalgae can also accumulate protein and/or lipid, which can subsequently be used to produce aquaculture feed and biofuel . However, aquaculture wastewater is typically pretreated via filtration, sterilization, boiling, and ultraviolet irradiation before it is used for microalgal culture . Due to the existence of indigenous bacteria and microalgae in real aquaculture wastewater, it is not clear whether exogenous microalgae can adapt to the conditions of real aquaculture wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the microalgae‐based aquaculture wastewater treatment process does not predominate over the conventional biological wastewater treatment process due to the slow growth rate of microalgae. This results in a longer culture period of microalgae (more than 10 days) to achieve the removal of most pollutants from aquaculture wastewater . Clearly, it will not be conducive to microalgae‐based aquaculture wastewater treatment when a large amount of aquaculture wastewater is discharged.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, adjustment of the initial inoculation dosages of microalgae has been proposed to alter pollutant removal rate and shorten cultivation time. As described by Nasir et al . 30% (v/v) inoculation dosage of Chlorella sp.…”

Section: Introductionmentioning

confidence: 99%

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Treatment of real aquaculture wastewater from a fishery utilizing phytoremediation with microalgae

Liu

Feng

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND: In this study, five microalgal species (Chlorella vulgaris, Chlorococcum sp. GD, Parachlorella kessleri TY, Scenedesmus quadricauda, and Scenedesmus obliquus) were cultivated in batch mode to evaluate their respective potential for the treatment of real aquaculture wastewater from a fishery. Subsequently, the microalga with the best performance was cultivated with different initial inoculation concentrations to evaluate the effect of initial inoculation on pollutant removal efficiency. RESULTS: When real aquaculture wastewater was inoculated with exogenous microalgae, the growth of both indigenous microalgae and bacteria was significantly inhibited. Pollutant removal was closely related to exogenous inoculationof microalgae. Parachlorella kessleri TY had high growth potential and pollutant removal capability in aquaculture wastewater, compared with the other four microalgae. When the wastewater was inoculated with low biomass concentrations of P. kessleri TY (50-100 mg L −1 ), it grew well and degraded most of the encountered pollutant. In particular, P. kessleri TY with 100 mg L −1 of inoculation concentration removed 94.4% of COD, 96.2% of ammonium, 99% of nitrite, 94.3% of nitrate, and 95.6% of phosphorus after 3 days of cultivation. CONCLUSIONS: Both the screening for microalgal species and the regulation of initial inoculation concentrations are promising approaches to enhance pollutant removal efficiency from real aquaculture wastewater. Determination of water qualityTo determine the water quality, the microalgal suspension was centrifuged at 5000 rpm for 5 min and the supernatant J Chem Technol Biotechnol 2019; 94: 900-910 /jctb up to 94.4%, 96.2%, 99%, 94.3%, and 95.6% for COD, ammonium, nitrite, nitrate, and total phosphorus, respectively. In the remaining tested inoculation concentrations (25, 50, 200, and 400 mg L −1 ), 77.8-88.9% of COD, 54.2-86.1% of ammonium, 64.1-91.7% of nitrite, 57.1-85.7% of nitrate, and 53-81.4% of total phosphorus were removed from the aquaculture wastewater J Chem Technol Biotechnol 2019; 94: 900-910

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Section: Resultssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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