Application and Evaluation of Energy Conservation Technologies in Wastewater Treatment Plants

Sun, Yongteng; Lu, Ming‐Chun; Sun, Yongjun; Chen, Zuguo; Hao, Dejun; Liu, Duan

doi:10.3390/app9214501

Cited by 12 publications

(6 citation statements)

References 176 publications

(202 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although the EEO for industrial processes can differ by one or two orders of magnitude and depends on the process parameters as well as the scale of the apparatus, our results are comparable to the ones reported in the literature and related to the refence AOP. The minimum value of 7 kWh/m 3 observed at 400 kPa is below the EEO of ultrasonic cavitation, as commonly demonstrated in the scientific literature [8,10,12,[67][68][69][70][71] and is in the range of Ozonation, O3/H2O2, UV/persulfate, O3/UV UV/H2O2 [67][68][69][70][71][72][73]. Moreover, these values have been obtained for pure hydrodynamic cavitation and can be consistently decreased by the application of hybrid techniques including cavitation and H2O2 or O3.…”

Section: Energy Efficiencysupporting

confidence: 63%

A Transport-Phenomena Approach to Model Hydrodynamic Cavitation of Organic Pollutants

Capocelli

Crescenzo

Karatza

et al. 2020

Water

View full text Add to dashboard Cite

Hydrodynamic cavitation (HC) has been extensively studied for the Advanced Oxidation of organic compounds in wastewaters since it physically produces an oxidative environment at ambient conditions. This process is simple and economical since it can be realized through a properly designed restriction in a pipeline, even in retrofit solutions. Several experimental works individuated similar values of the optimal operating conditions, especially with regard to the inlet pressure. Up to now, the available modeling works rely on a single-bubble dynamics (SBD) approach and do not consider the actual process configuration and pollutant transport in proximity to the oxidizing environment. This work describes different experimental results (from this research group and others) and applies a novel mathematical model based on a transport-phenomena approach, able to directly simulate the effect of HC on the pollutant degradation. The novel proposed model is able to reproduce well a large number of experimental data obtained in different conditions, with different apparatus and different molecules, and allows to interconnect both SBD, fluid-dynamics, and physio-chemical variables in order to deeply study the interaction between the transport of pollutants and the reactive environment. This paper includes collection and discussion of several experimental results with the related main process parameters, description of the novel model and validation against the cited experimental results (to explain the effect of the operating pressure), sensitivity analysis, and the performance limit of the HC with the proposed modeling approach.

show abstract

Section: Energy Efficiencysupporting

confidence: 63%

A Transport-Phenomena Approach to Model Hydrodynamic Cavitation of Organic Pollutants

Capocelli

Crescenzo

Karatza

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…Compared to other countries, it constitutes a relatively low value. The consumption of electricity by all WWTPs in Europe was calculated as 27 TWh/year [67]. A constant development of the municipal infrastructure indicates an increase in the energy consumption for WWTP in Poland, even up to 5.5 TWh/year, which will comprise ca.…”

Section: Biogas Utilization At Wwtps In Polandmentioning

confidence: 99%

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

et al. 2020

View full text Add to dashboard Cite

The improvement of energy efficiency ensuring high nutrients removal is a great concern for many wastewater treatment plants (WWTPs). The energy balance of a WWTP can be improved through the application of highly efficient digestion or its intensification, e.g., through the introduction of the co-substrates with relatively high energy potential to the sewage sludge (SS). In the present study, the overview of the energetic aspect of the Polish WWTPs was presented. The evaluation of energy consumption at individual stages of wastewater treatment along with the possibilities of its increasing was performed. Additionally, the influence of co-digestion process implementation on the energy efficiency of a selected WWTP in Poland was investigated. The evaluation was carried out for a WWTP located in Iława. Both energetic and treatment efficiency were analyzed. The energy balance evaluation of this WWTP was also performed. The obtained results indicated that the WWTP in Iława produced on average 2.54 GWh per year (7.63 GWh of electricity in total) as a result of the co-digestion of sewage sludge with poultry processing waste. A single cubic meter of co-substrates fed to the digesters yielded an average of 25.6 ± 4.3 Nm3 of biogas (between 18.3 and 32.2 Nm3/m3). This enabled covering the energy demand of the plant to a very high degree, ranging from 93.0% to 99.8% (98.2% on average). Importantly, in the presence of the co-substrate, the removal efficiency of organic compounds was enhanced from 64% (mono-digestion) to 69–70%.

show abstract

“…In a similar context, Sun et al, [12] reported on the application and evaluation of energy conversion technologies in wastewater treatment plants. The reason is that high energy consumption is a critical issue influencing the operation and sustainability of wastewater treatment plants (WWTPs).…”

Section: Resultsmentioning

confidence: 99%

“…(a) First, there are those that investigate the application of membrane treatment processes, either directly [1] (b) second, there are studies that investigate the application of adsorptive processes for the removal of contaminants from waters, such as arsenic, lead, nickel or chromate [2][3][4][5][6], but also assessed the health effects of their exposure to humans [7]. (c) third, there are studies that include novel aspects of oxidative treatment [8,9] and (d) fourth, studies that examine wastewater treatment efficiency, testing new type reactors [10], minimizing the sewage sludge [11] or energy minimization and conversion and in wastewater treatment facilities [12,13].…”

Section: Introductionmentioning

confidence: 99%

Innovative Approaches for Drinking- and Waste-Water Treatment: An Editorial Review Summarizing and Assessing the Findings of the Special Issue

Katsoyiannis

Torretta

2021

Applied Sciences

View full text Add to dashboard Cite

The present special issue collected articles that address the very important topic of innovative approaches in water and wastewater treatment technologies. Thirteen articles are published, ten research paper and three review articles. The papers can be divided in four major categories, namely, membrane treatment, adsorption studies, advanced oxidation processes and wastewater treatment optimization. In the editorial, a brief description of the findings of each paper is presented along with a critical assessment.

show abstract

Application and Evaluation of Energy Conservation Technologies in Wastewater Treatment Plants

Cited by 12 publications

References 176 publications

A Transport-Phenomena Approach to Model Hydrodynamic Cavitation of Organic Pollutants

A Transport-Phenomena Approach to Model Hydrodynamic Cavitation of Organic Pollutants

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

Innovative Approaches for Drinking- and Waste-Water Treatment: An Editorial Review Summarizing and Assessing the Findings of the Special Issue

Contact Info

Product

Resources

About