Urban secondary sewage: an alternative medium for the culture of Tetraselmis chuii (Prasinophyceae) and Dunaliella viridis (Chlorophyceae)

Costa, Roberto Cezar Lobo da; Koening, Maria Luise; Macêdo, Sílvio José de

doi:10.1590/s1516-89132004000300016

Cited by 14 publications

(12 citation statements)

References 9 publications

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“…Even in low N-NO 3 concentrations, the assimilation rates were not very high, probably limited by the absence of phosphorus. The same result was found by Da Costa et al (2004) where T. chuii assimilated 86.4% of the nitrate in a treatment of 30% diluted domestic effluent.…”

Section: Water Qualitysupporting

confidence: 86%

“…The Orthophosphate consumption is similarly Da Costa, Koening and de Macedo () used a culture medium with 34.843 μmoles L −1 P‐PO 4 (1.08 mg L −1 ), formulated from 40% diluted urban effluent for T. chuii biomass production. They observed 99.1% orthophosphate assimilation in 7 days.…”

Section: Discussionmentioning

confidence: 99%

“…The same result was found by Da Costa et al . () where T. chuii assimilated 86.4% of the nitrate in a treatment of 30% diluted domestic effluent.…”

Section: Discussionmentioning

confidence: 99%

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Using residual water from a marine shrimp farming BFT system. part I: nutrient removal and marine microalgae biomass production

et al. 2015

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Microalgae have great biotechnological potential but the high cost of traditional formulae culture media is one of the limiting factors to their commercial cultivation. As an alternative, the use of residual water from other activities has been proposed as a culture medium. The goal of this study was to produce Chaetoceros muelleri, Nannochloropsis oculata and Tetraselmis chuii biomass using residual water from an intensive Litopenaeus vannamei biofloc cultivation system and to verify the ammoniacal nitrogen, nitrite, nitrate and orthophosphate consumption. The microalgae cultures were developed until the second day of their stationary phase in the following treatments: 100% f/2 culture media; 100% residual water; residual water diluted 50% with marine water. T. chuii and N. oculata presented the best relative biomass average (576 mg L−1; 474 mg L−1)(P > 0.05). All the species completely assimilated the orthophosphate in 2 days. In 10 days, T. chuii and N. oculata assimilated 87% and 85% of nitrate respectively. It can be concluded that residual water from an L. vannamei biofloc cultivation system can be used as an alternative culture medium for T. chuii and N. oculata biomass production. Moreover, the microalgae biomass proved to be very effective in recycling the dissolved nutritive salts.

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Section: Water Qualitysupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

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Using residual water from a marine shrimp farming BFT system. part I: nutrient removal and marine microalgae biomass production

et al. 2015

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“…The aquaculture effluents can be as a source of pollution in the environment (5). The studies have shown that low levels of nitrogen (about 0.4 mg L -1 ) and phosphorus (about 0.1 mg L -1 ) in calm waters (i.e., swamps and lakes) cause rapid growth of algae (6,7). Therefore, their growth reduces the concentration of dissolved oxygen and the penetration of light into the water, which leads to the destruction of fish and microorganisms.…”

Section: Introductionmentioning

confidence: 99%

“…In these conditions, the aerobic environment becomes anaerobic and all of these processes lead to water enrichment. In addition to the problems caused by this phenomenon for the environment, the process of purifying these waters is costly and undesirable (6,7). Drinking Nitratecontaminated water causes children's blood diseases and adults' gastro-intestinal cancers.…”

Section: Introductionmentioning

confidence: 99%

Comparison ability of algae and nanoparticles on nitrate and phosphate removal from aquaculture wastewater

Hesni

Hedayati

Qadermarzi

et al. 2019

Environ Health Eng Manag

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Background: Aquaculture wastewater contains high levels of phosphate and nitrate. The reuse of this water requires standards beyond the secondary standards to eliminate more organic pollutants from aquaculture effluents. In this research, the removal of these pollutants from wastewater using Chlorella vulgaris and Fe3 O4 nanoparticles in the reactor space was investigated. Methods: This study was conducted on fish farms effluent in the laboratory system. For this purpose, a 5-L semi-industrial reactor with a mixer blade, porous plate, and a compressor was designed. Chlorella vulgaris samples were collected from the natural environment and cultured in the laboratory environment. Also, Fe3 O4 nanoparticles were prepared from Iranian Nano Pishgaman Company to make the desired solution. During the experiment (3 weeks), samples were taken weekly (in one phase) from the effluent. Dissolved oxygen (DO), pH, nitrate (NO3 ), and phosphate (PO4 ) factors from the influent and effluent of the farms were measured. The statistical data were analyzed using SPSS version 21 and Excel 2013. Results: The amounts of nitrate and phosphate were decreased by about 80.76 and 80.55% in the biological reactor, whereas these amounts were 70.52 and 70.48% in the nanoparticle reactor, respectively. Also, there were significant differences in the amounts of NO3 and PO4 between the control treatment and weekly treatment (P<0.05). Conclusion: Based on the results, both reactors were able to reduce nitrate and phosphate from aquaculture wastewater, but the efficiency of the biological reactor was higher than that of the nanoparticle reactor.

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Multifaceted Role of Microalgae for Municipal Wastewater Treatment: A Futuristic Outlook toward Wastewater Management

Goswami

Agrawal

Verma

2022

CLEAN Soil Air Water

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Municipal wastewater (MWW) or urban wastewater (UWW) is generated by the domestic consumption of freshwater, which contains a huge amount of nutrients. The release of unprocessed wastewater causes eutrophication and harms aquatic life. Moreover, ingestion of polluted MWW causes a severe negative impact on human health. Microalgae are unicellular, eukaryotic photosynthetic organisms and have the capability of nutrient assimilation in the presence of light. Moreover, the produced biomass can be used for the generation of value‐added bioproducts such as bioenergy. However, conventional microalgae‐based MWW treatment is not as sustainable on a commercial scale. Therefore, more advanced approaches using microalgae need to be integrated in wastewater cultivation systems to improve nutrient removal efficiency. Thus, the present review explores the use of microalgae for the removal of nutrients from MWW, provides an outlook of direct and indirect methods of nutrient uptake from wastewater and the effects of the influencing factors in biomass growth. Moreover, the review also gives insight into recent approaches used for MWW treatment and the applications of algal biomass resulting from treated wastewater. It is predicted that microalgae‐based MWW treatment systems will be a significant green approach to help eliminate nutrient loads and implement circular economy.

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Urban secondary sewage: an alternative medium for the culture of Tetraselmis chuii (Prasinophyceae) and Dunaliella viridis (Chlorophyceae)

Abstract: The effect of different concentrations (10, 20, 30 and 40%)

Cited by 14 publications

References 9 publications

Using residual water from a marine shrimp farming BFT system. part I: nutrient removal and marine microalgae biomass production

Using residual water from a marine shrimp farming BFT system. part I: nutrient removal and marine microalgae biomass production

Comparison ability of algae and nanoparticles on nitrate and phosphate removal from aquaculture wastewater

Multifaceted Role of Microalgae for Municipal Wastewater Treatment: A Futuristic Outlook toward Wastewater Management

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