The effects of Parachlorella kessleri cultivation on brewery wastewater

O’Rourke, Rachel; Gaffney, Mark; Murphy, Richard

doi:10.2166/wst.2015.618

Cited by 23 publications

(8 citation statements)

References 38 publications

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“…After 5 days of cultivation, the biomass concentration increased to 150, 190, 260, 350, and 545 mg L −1 , respectively, achieving 1.57, 1.58, 1.53, 1.30, and 1.16‐fold increases in biomass concentration, respectively. Furthermore, the biomass concentration of P. kessleri TY at all inoculation concentrations was low, compared with P. kessleri cultivated in brewery wastewater . Low biomass concentration in the aquaculture wastewater was caused by the low nutrients concentration compared with brewery wastewater.…”

Section: Resultsmentioning

confidence: 86%

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: Resultsmentioning

confidence: 86%

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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“…The highest productivity of biomass (0.39-1.87 g/L/day) and lipid (120-250 mg/L/day) was reported in a green microalgal species Chlorella vulgaris 2714 using mixotrophic cultivation with different initial glucose: glycerol concentrations (Heredia-Arroyo et al 2011). Moreover, considerable biomass productivity (0.879 mg/L/day) was obtained by Parachlorella kessleri 211-11G under mixotrophic growth conditions using glucose in fermented brewery wastewater (O'Rourke et al 2016). A similar finding was stated in different green microalgal species such as Chlorella pyrenoidosa using alcohol wastewater and anaerobically digested starch wastewater (Yang et al 2015), Chlorella sp.…”

Section: Mixotrophic Cultivationmentioning

confidence: 99%

Algal biomass valorization for biofuel production and carbon sequestration: a review

et al. 2022

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The world is experiencing an energy crisis and environmental issues due to the depletion of fossil fuels and the continuous increase in carbon dioxide concentrations. Microalgal biofuels are produced using sunlight, water, and simple salt minerals. Their high growth rate, photosynthesis, and carbon dioxide sequestration capacity make them one of the most important biorefinery platforms. Furthermore, microalgae's ability to alter their metabolism in response to environmental stresses to produce relatively high levels of high-value compounds makes them a promising alternative to fossil fuels. As a result, microalgae can significantly contribute to long-term solutions to critical global issues such as the energy crisis and climate change. The environmental benefits of algal biofuel have been demonstrated by significant reductions in carbon dioxide, nitrogen oxide, and sulfur oxide emissions. Microalgae-derived biomass has the potential to generate a wide range of commercially important high-value compounds, novel materials, and feedstock for a variety of industries, including cosmetics, food, and feed. This review evaluates the potential of using microalgal biomass to produce a variety of bioenergy carriers, including biodiesel from stored lipids, alcohols from reserved carbohydrate fermentation, and hydrogen, syngas, methane, biochar and bio-oils via anaerobic digestion, pyrolysis, and gasification. Furthermore, the potential use of microalgal biomass in carbon sequestration routes as an atmospheric carbon removal approach is being evaluated. The cost of algal biofuel production is primarily determined by culturing (77%), harvesting (12%), and lipid extraction (7.9%). As a result, the choice of microalgal species and cultivation mode (autotrophic, heterotrophic, and mixotrophic) are important factors in controlling biomass and bioenergy production, as well as fuel properties. The simultaneous production of microalgal biomass in agricultural, municipal, or industrial wastewater is a low-cost option that could significantly reduce economic and environmental costs while also providing a valuable remediation service. Microalgae have also been proposed as a viable candidate for carbon dioxide capture from the atmosphere or an industrial point source. Microalgae can sequester 1.3 kg of carbon dioxide to produce 1 kg of biomass. Using potent microalgal strains in efficient design bioreactors for carbon dioxide sequestration is thus a challenge. Microalgae can theoretically use up to 9% of light energy to capture and convert 513 tons of carbon dioxide into 280 tons of dry biomass per hectare per year in open and closed cultures. Using an integrated microalgal bio-refinery to recover high-value-added products could reduce waste and create efficient biomass processing into bioenergy. To design an efficient atmospheric carbon removal system, algal biomass cultivation should be coupled with thermochemical technologies, such as pyrolysis.

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“…According to research, the higher the ratio of N/P, the better the removal effect of nutrients. Research shows that when the ratio of N/P is 5, the removal effect of nitrogen and phosphorus is relatively good [48,49]. Stumm's empirical formula for microalgae is C 106 H 263 O 110 N 16 P (the ratio of nitrogen to phosphorus is 7.2:1), which also provides a reference for the ratio of nitrogen to phosphorus in sewage; however, the average composition of microalgae cells depends on the strain and growth conditions [20].…”

Section: Nutrient Removal and Cod Decrease Efficiency Of Five Green Microalgae Species In Artificial Domestic Sewagementioning

confidence: 99%

A Comparative Study of the Growth and Nutrient Removal Effects of Five Green Microalgae in Simulated Domestic Sewage

et al. 2021

Water

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Microalgae have shown great potential in wastewater treatment. This study evaluates the growth and nutrient removal characteristics of five different microalgae strains, namely Chlorella vulgaris, Tetradesmus obliquus, Parachlorella kessleri, Hydrodictyon sp., and Scenedesmus quadricauda, in simulated domestic wastewater. The five microalgae could adapt to wastewater, but the growth potential and nitrogen removal capacity were species dependent. The nutrient removal effect of the microalgae used in this experiment was about 50% in the first two days. Parachlorella kessleri, selected from the five strains of green algae, shows good potential in removing nutrients from simulated domestic wastewater. For the simulated domestic sewage treated with Parachlorella kessleri, the chemical oxygen demand was almost completely reduced, and ammonium-N (NH4-N) and total nitrogen (TN) removal exceeded 70% at the end of the 10-day treatment. Total phosphorus (TP) removal was slightly worse, more than 65%. Parachlorella kessleri showed the best growth in sewage with the highest biomass reaching 366.67 mg L−1 and the highest specific growth rate reaching 0.538 d−1. This study can provide a reference for selecting suitable microalgae species to treat actual domestic sewage.

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The effects of Parachlorella kessleri cultivation on brewery wastewater

Cited by 23 publications

References 38 publications

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

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

Algal biomass valorization for biofuel production and carbon sequestration: a review

A Comparative Study of the Growth and Nutrient Removal Effects of Five Green Microalgae in Simulated Domestic Sewage

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