Energetic and environmental analysis of a wastewater treatment plant through static and dynamic monitoring activities

Cicco, Maria Rosa di; Spagnuolo, Antonio; Masiello, A.; Vetromile, Carmela; Nappa, Mariano; Lubritto, Carmine

doi:10.1007/s13762-020-02775-0

Cited by 9 publications

(14 citation statements)

References 38 publications

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“…Discrepancies between our tests and those reported in literature might be ascribable both to a different culture system and to the highest pollutant load of the urban primary settled wastewater [ 44 ]. In fact, NH 3 -N and PO 4 3 concentrations in the wastewater employed within the POWER project were typically of about 40 mg L −1 and 10 mg L −1 , respectively [ 38 ], much higher than the value reported for the wastewater from the city of Salerno where both ammonium and total phosphorus had an average value of about 5 mg L −1 [ 49 ]; this was mainly due to the fact that the wastewater treatment facility was affected by a large amount of undesired inflows/infiltrations diluting the wastewater [ 47 , 48 ]. The hypothesis is that the scarcity of nutrients would not allow a growth at the levels reached in New Mexico, where sewages were much more concentrated in eutrophic elements.…”

Section: Resultsmentioning

confidence: 99%

“…In the following hours, however, while the lipid content in the biomass grown in autotrophic Allen medium remained stable (non-significant statistical difference), it increased in the biomass grown in wastewater (significant difference). Wastewater from the city of Salerno, despite being strongly diluted [ 48 , 49 ], contains organic carbon, so it can be easily assumed that the microalgae suspended in raw wastewater were able to grow heterotrophically when the light was absent. This condition of light absence in the climatic chamber occurred between the 6th and 24th hour ( Figure 5 ).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the metabolic versatility of Galdieria genus makes its species promising candidates for treating high chemical oxygen demand-loaded streams [ 16 ]. Related to this, the urban wastewaters employed in these experiments were collected at a large WWTF located in southern Italy, which are negatively affected by dilution of organic load and are characterized by a high COD/BOD 5 ratio [ 47 , 48 , 49 ]. Experimentation consisted of growing the new G. phlegrea strain in primary settled urban wastewater, whereby the main process parameters were monitored over time, including: biomass production, ability to reduce NH 4 + and PO 4 3− as pollutant load, phycocyanin and total lipid content.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cultivation of the Acidophilic Microalgae Galdieria phlegrea with Wastewater: Process Yields

Cicco

Palmieri

Altieri

et al. 2021

IJERPH

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Algal based wastewater treatment offers the opportunity to recover, in the form of biomass, the nutrients and internal chemical energy of wastewater. Recently, there has been a growing interest in the use of extremophilic microalgae, as they can easily adapt to difficult and often pollutant-rich environments. The thermo-acidophilic microalga Galdieria phlegrea is a species of recent discovery and great metabolic versatility, but it has still been poorly studied. Here, G. phlegrea was cultivated using raw municipal wastewater in 1 L Erlenmeyer flasks with 700 mL working volume at 37 °C for up to nine days. During the cultivation phase, biomass growth, phycocyanin content, ammonium and phosphate removal from the wastewater, lipid fraction, total carbon and nitrogen in the biomass, and variation in δ13C and δ15N isotopic ratios (a novel analytical contribution in these experiments) were monitored. Results indicated that G. phlegrea was able to grow in raw effluent, where it removed more than 50% ammonium and 20% phosphate in 24 h; total lipid content was in the range of 11–22%, while average C-N content was of 45% and 6%, respectively; isotopic analyses proved to be a useful support in identifying C and N metabolic pathways from effluent to biomass. Overall, G. phlegrea showed consistent performance with similar Cyanidiophyceae and is a potentially viable candidate for municipal wastewater valorization from a circular economy perspective.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cultivation of the Acidophilic Microalgae Galdieria phlegrea with Wastewater: Process Yields

Cicco

Palmieri

Altieri

et al. 2021

IJERPH

Self Cite

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“…This distinction was necessary because the calculation of the PE organic served is conventionally based only on the amount of BOD in the effluent, while it does not consider the volume of effluent and-therefore-how concentrated the contaminants actually are. This aspect, as also highlighted in di Cicco, et al [21], is very important, because conditions of strong dilution of the wastewater negatively impact on the mechanisms that microorganisms perform for the removal of pollutants during secondary and tertiary treatment.…”

Section: Analysis Of Offline Data (Static Monitoring)mentioning

confidence: 89%

“…According to the Description Model already effectively applied in di Cicco, et al [21] for the evaluation of the energetic and environmental performance of a WWTP with a CAS process layout, all the data acquired were then used to calculate the operational indicators and KPIs described here below and summarized in Table 1.…”

Section: Analysis Of Offline Data (Static Monitoring)mentioning

confidence: 99%

Real-Time Monitoring and Static Data Analysis to Assess Energetic and Environmental Performances in the Wastewater Sector: A Case Study

Cicco

Masiello²,

Spagnuolo

et al. 2021

Energies

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Real-time monitoring of energetic-environmental parameters in wastewater treatment plants enables big-data analysis for a true representation of the operating condition of a system, being still frequently mismanaged through policies based on the analysis of static data (energy billing, periodic chemical–physical analysis of wastewater). Here we discuss the results of monitoring activities based on both offline (“static”) data on the main process variables, and on-line (“dynamic”) data collected through a monitoring system for energetic-environmental parameters (dissolved oxygen, wastewater pH and temperature, TSS intake and output). Static-data analysis relied on a description model that employed statistical normalization techniques (KPIs, operational indicators). Dynamic data were statistically processed to explore possible correlations between energetic-environmental parameters, establishing comparisons with static data. Overall, the system efficiently fulfilled its functions, although it was undersized compared to the organic and hydraulic load it received. From the dynamic-data analysis, no correlation emerged between energy usage of the facility and dissolved oxygen content of the wastewater, whereas the TSS removal efficiency determined through static measurements was found to be underestimated. Finally, using probes allowed to characterize the pattern of pH and temperature values of the wastewater, which represent valuable physiological data for innovative and sustainable resource recovery technologies involving microorganisms.

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Characterizing passenger-ship emissions: towards improved sustainability for MedMar fleet (gulf of Naples)

Spagnuolo

Santo²,

Vetromile

et al. 2022

Energy Efficiency

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Promoting energetic and environmental sustainability in the naval sector requires a necessary understanding of the energy demand of vessels and of the factors affecting it. This article shows the results of a study conducted by the shipping company MedMar aimed at acquiring a detailed analysis of the energetic performances of its fleet. The study involved the analysis of fuel consumption and emissions of the fleet using a specific software and under different scenarios, assuming the navigation speed and the cargo level of the vessels as reference parameters. Simulations also provided a comparison, concerning emissions and externalities, between ships and two different means of transport. The purpose of this study was to identify potential areas of improvement, where ad hoc strategies could be used to further optimise the energetic and environmental performance of MedMar fleet and mitigate its impact on the delicate ecosystem of the gulf of Naples, where the fleet sails.

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Energetic and environmental analysis of a wastewater treatment plant through static and dynamic monitoring activities

Cited by 9 publications

References 38 publications

Cultivation of the Acidophilic Microalgae Galdieria phlegrea with Wastewater: Process Yields

Cultivation of the Acidophilic Microalgae Galdieria phlegrea with Wastewater: Process Yields

Real-Time Monitoring and Static Data Analysis to Assess Energetic and Environmental Performances in the Wastewater Sector: A Case Study

Characterizing passenger-ship emissions: towards improved sustainability for MedMar fleet (gulf of Naples)

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