Algal growth in primary settled sewage

Ip, Sy; Bridger, J. S.; Chin, Chee-Keong; Martin, Wrb; Raper, W.G.C.

doi:10.1016/0043-1354(82)90083-5

Cited by 40 publications

(5 citation statements)

References 10 publications

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“…The uncharged NH3 is most toxic because this form more soluble and readily transfer through the cell membranes than NH4 + [23]. It is also well studied that NH4 + inhibits microalgal growth at a concentration higher than 50 mg N l -1 [24] or even at 28 mg N l -1 [25], due to toxic effects caused by unionized ammonia (NH3) [26].…”

Section: Discussionmentioning

confidence: 99%

Microalgae Growth and Phosphorus Uptake of Chlamydomonas Reinhardtii 11/32C under Different Inorganic Nitrogen Sources

Yulistyorini¹,

Camargo‐Valero²

2020

IJIE

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Microalgae have been proven to be effective in utilizing nitrogen (N) and phosphorus (P) from a wide range of wastewater sources. This ability enhances the potential role that microalgae may have not only in wastewater bioremediation, but also in algal biomass production as an alternative feedstock for biodiesel and bio-fertilizer production. To investigate the ability of microalgae at recovering nutrients, the microalga strain Chlamydomonas reinhardtii 11/32C was selected to determine P uptake rates. Results shown that C.reinhardtii 32C cultivated in combination of NO3- and NH4+ as nitrogen sources was able to uptake 0.067 mg P l-1d-1. Combination of both nitrogen can produce specific growth rate of 0.128 d-1 and 89 mg VSS l-1d-1 of biomass dry weight. These value is the highest compare to C.reinhardtii 32C cultivated in NO3- or NH4+. These findings are fundamental to understand and plan future studies for cultivation conditions to induce luxury nutrient uptake by selected microalga.

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Section: Discussionmentioning

confidence: 99%

Microalgae Growth and Phosphorus Uptake of Chlamydomonas Reinhardtii 11/32C under Different Inorganic Nitrogen Sources

Yulistyorini¹,

Camargo‐Valero²

2020

IJIE

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“…The photoperiod shows ascendancy by observing the growth of the algae. The biomass increases with an increase in photoperiod from 6 to 12 h (Ip et al, 1982). The following reaction represents the photosynthesis process of algae (Wang et al, 2017) Temperature, light, dissolved CO 2 , DO and pH affect each other, and their interplay determines the algal growth.…”

Section: Algae Metabolismmentioning

confidence: 99%

“…Biomass tends to increase with a rise in temperature. The optimal temperature for algal growth is between 20 and 30°C (Ip et al, 1982). The temperature also influences the solubility of CO 2 /O 2 and the mass transfer rate in the culture medium (Vale et al, 2020).…”

Section: Algae Metabolismmentioning

confidence: 99%

Microalgae cultivation in bio-electrochemical systems

Mishra,

Chhabra

2023

Algal Systems for Resource Recovery From Waste and Wastewater

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Biofuels from algae have the potential to completely replace fossil-based fuels and provide energy security for the future. However, the cost of algae biofuels is still too high for commercial application. In this context, producing algae and electrical energy using photosynthetic microbial fuel cells (PMFCs) is an attractive option. PMFCs utilize the natural process of photosynthesis for algae generation or algae degradation at the anode. In the former system, the process of organic matter degradation complements the process of algae biomass production with concomitant power generation. Electrogenic bacteria oxidize organic matter at the anode anaerobically. The anode transfers the electrons released through oxidation to the cathode, where photosynthetic organisms produce oxygen (O2) as a cathodic electron acceptor. The suitability of bio-electrochemical systems such as microbial fuel cells for algae cultivation can be assessed by comparing them with the conventional method of cultivation, namely open ponds and photobioreactors. PMFCs offer a process that can provide high carbon dioxide concentrations for algal growth, has a mechanism to prevent high inhibitory O2 concentrations and can meet a fraction of the process electricity requirements. The algae biomass can go as high as 4–5 g/L in a PMFC and power output doubles due to activity of algae at the cathode compartment. This chapter discusses the algal growth in bio-electrochemical systems, the factors that influence them and directions for future research.

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“…Of these factors, the lack of CO 2 often causes limited yields, but the fundamental condition of a large extent of CO 2 sequestration is to make sure that both the proper concentration of CO 2 and all other conditions of intensive technology are available. As for light, the minimum light intensity is 3240 lx and at least 180 [43] or 300 [44] hours of effective illumination are needed to reach 500 mg L −1 . The optimum temperature is between 20 and 30 degrees Celsius [45].…”

Section: Potential Significance Of Algaementioning

confidence: 99%

The Significance of Forests and Algae in CO2 Balance: A Hungarian Case Study

et al. 2017

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This study presents the sequestration and emissions of forests and algae related to CO 2 while providing a comparison to other biomass sources (arable crops, short rotation coppices). The goal of the paper is to analyze the impact of the current CO 2 balance of forests and the future prospects for algae. Our calculations are based on data, not only from the literature but, in the case of algae, from our own previous experimental work. It was concluded that the CO 2 sequestration and natural gas saving of forests is typically 3.78 times higher than the emissions resulting from the production technology and from the burning process. The economic and environmental protection-related efficiency operate in opposite directions. The CO 2 sequestration ability of algae can primarily be utilized when connected to power plants. The optimal solution could be algae production integrated with biogas power plants, since plant sizes are smaller and algae may play a role, not only in the elimination of CO 2 emissions and the utilization of heat but also in wastewater purification.

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Algal growth in primary settled sewage

Cited by 40 publications

References 10 publications

Microalgae Growth and Phosphorus Uptake of Chlamydomonas Reinhardtii 11/32C under Different Inorganic Nitrogen Sources

Microalgae Growth and Phosphorus Uptake of Chlamydomonas Reinhardtii 11/32C under Different Inorganic Nitrogen Sources

Microalgae cultivation in bio-electrochemical systems

The Significance of Forests and Algae in CO2 Balance: A Hungarian Case Study

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