scholarly journals Modeling of H2S Dispersion in Brazil with Aermod: Case Study of Water Resource Recovery Facility In South of Brazil

2019 ◽  
Vol 34 (4) ◽  
pp. 497-504 ◽  
Author(s):  
Matheus Ribeiro Augusto ◽  
Bruno Campos ◽  
Vanessa Silveira Barreto Carvalho ◽  
Herlane Costa Calheiros
Keyword(s):  
Water Resource ◽  
Statistical Data ◽  
Atmospheric Stability ◽  
Resource Recovery ◽  
Anaerobic Treatment ◽  
Data Validation ◽  
Odor Plumes ◽  
South Of Brazil ◽  
H2s Emission

Abstract Water Resource Recovery Facility (WRRF) can be source of odorous gases. We analyzed the emission and dispersion of hydrogen sulfide gas (H2S), odor indicator, produced during the anaerobic treatment of wastewaters, using WATER9 and AERMOD models for two distinct events: August 2013 and February-March 2014. Data from two WRRF in Brazil were used to feed the model and a statistical data validation was performed, followed by an evaluation of model results regarding H2S emission and dispersion. Daily peak events and averages over the two periods were calculated. Results show a good performance from the model in comparison to the observations. Moreover, odor plumes typically reached 2-4 km from their sources and they may be strongly affected by atmospheric stability/instability conditions in the events analyzed and, in general, only the residences at the vicinity of WRRF were affected by the pollutant odor. Finally, the methodology presented showed to be feasible and realistic for purposes of WRRF planning and management.

Modelling energy costs for different operational strategies of a large water resource recovery facility

2017 ◽  
Vol 75 (9) ◽  
pp. 2139-2148 ◽  
Author(s):  
P. Póvoa ◽  
A. Oehmen ◽  
P. Inocêncio ◽  
J. S. Matos ◽  
A. Frazão
Keyword(s):  
Water Resource ◽  
Dynamic Modelling ◽  
Resource Recovery ◽  
Arithmetic Mean ◽  
Full Scale ◽  
Energy Costs ◽  
Energy Prices ◽  
Operational Strategies ◽  
Energy Pricing

The main objective of this paper is to demonstrate the importance of applying dynamic modelling and real energy prices on a full scale water resource recovery facility (WRRF) for the evaluation of control strategies in terms of energy costs with aeration. The Activated Sludge Model No. 1 (ASM1) was coupled with real energy pricing and a power consumption model and applied as a dynamic simulation case study. The model calibration is based on the STOWA protocol. The case study investigates the importance of providing real energy pricing comparing (i) real energy pricing, (ii) weighted arithmetic mean energy pricing and (iii) arithmetic mean energy pricing. The operational strategies evaluated were (i) old versus new air diffusers, (ii) different DO set-points and (iii) implementation of a carbon removal controller based on nitrate sensor readings. The application in a full scale WRRF of the ASM1 model coupled with real energy costs was successful. Dynamic modelling with real energy pricing instead of constant energy pricing enables the wastewater utility to optimize energy consumption according to the real energy price structure. Specific energy cost allows the identification of time periods with potential for linking WRRF with the electric grid to optimize the treatment costs, satisfying operational goals.

scholarly journals Water Resource Recovery Facilities (WRRFs): The Case Study of Palermo University (Italy)

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3413
Author(s):  
Giorgio Mannina ◽  
Rosa Alduina ◽  
Luigi Badalucco ◽  
Lorenzo Barbara ◽  
Fanny Claire Capri ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Resource ◽  
Circular Economy ◽  
Volatile Fatty Acids ◽  
Treatment Plant ◽  
Resource Recovery ◽  
Horizon 2020 ◽  
Eu Project ◽  
The University

The wastewater sector paradigm is shifting from wastewater treatment to resource recovery. In addition, concerns regarding sustainability during the operation have increased. In this sense, there is a need to break barriers (i.e., social, economic, technological, legal, etc.) for moving forward towards water resource recovery facilities and demonstration case studies can be very effective and insightful. This paper presents a new water resource recovery case study which is part of the Horizon 2020 EU Project “Achieving wider uptake of water-smart solutions—Wider Uptake”. The final aim is to demonstrate the importance of a resource recovery system based on the circular economy concept. The recovery facilities at Palermo University (Italy) are first presented. Afterwards, the resource recovery pilot plants are described. Preliminary results have underlined the great potential of the wastewater treatment plant in terms of resources recovery and the central role of the University in fostering the transition towards circular economy. The fermentation batch test highlighted a volatile fatty acids (VFAs) accumulation suitable for polyhydroxyalkanoates (PHAs) production. The results of static adsorption and desorption tests showed that the highest amount of adsorbed NH4+ was recorded for untreated and HCl-Na treated clinoptilolite.

Fundamental Improvements to Anaerobic Digestion Systems at Water Resource Recovery Facilities

2018 ◽  
Vol 2018 (4) ◽  
pp. 353-365
Author(s):  
David Parry ◽  
Cameron Clark ◽  
Corey Kliebert ◽  
Paul Steele
Keyword(s):  
Anaerobic Digestion ◽  
Water Resource ◽  
Resource Recovery

Building an integrated AI and mathmatical modeling framework for online supervision and control of water resource recovery facilities

2018 ◽  
Vol 2018 (10) ◽  
pp. 4025-4028
Author(s):  
Jose Porro ◽  
Chaïm De Mulder ◽  
Youri Amerlinck ◽  
Elena Torfs ◽  
Sophie Balemans ◽  
...  
Keyword(s):  
Water Resource ◽  
Resource Recovery ◽  
Modeling Framework ◽  
Online Supervision ◽  
And Control

scholarly journals System Dynamics-Multiple Objective Optimization Model for Water Resource Management: A Case Study in Jiaxing City, China

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 671
Author(s):  
Xiaoying Zhou ◽  
Feier Wang ◽  
Kuan Huang ◽  
Huichun Zhang ◽  
Jie Yu ◽  
...  
Keyword(s):  
Resource Management ◽  
System Dynamics ◽  
Water Resource ◽  
Water Allocation ◽  
Water Resource Management ◽  
Water Shortage ◽  
Multiple Objective ◽  
Multiple Objective Optimization ◽  
Model Framework

Predicting and allocating water resources have become important tasks in water resource management. System dynamics and optimal planning models are widely applied to solve individual problems, but are seldom combined in studies. In this work, we developed a framework involving a system dynamics-multiple objective optimization (SD-MOO) model, which integrated the functions of simulation, policy control, and water allocation, and applied it to a case study of water management in Jiaxing, China to demonstrate the modeling. The predicted results of the case study showed that water shortage would not occur at a high-inflow level during 2018–2035 but would appear at mid- and low-inflow levels in 2025 and 2022, respectively. After we made dynamic adjustments to water use efficiency, economic growth, population growth, and water resource utilization, the predicted water shortage rates decreased by approximately 69–70% at the mid- and low-inflow levels in 2025 and 2035 compared to the scenarios without any adjustment strategies. Water allocation schemes obtained from the “prediction + dynamic regulation + optimization” framework were competitive in terms of social, economic and environmental benefits and flexibly satisfied the water demands. The case study demonstrated that the SD-MOO model framework could be an effective tool in achieving sustainable water resource management.

scholarly journals Co-Management of Sewage Sludge and Other Organic Wastes: A Scandinavian Case Study

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3411
Author(s):  
Clara Fernando-Foncillas ◽  
Maria M. Estevez ◽  
Hinrich Uellendahl ◽  
Cristiano Varrone
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Resource Recovery ◽  
Organic Wastes ◽  
Industrial Wastes ◽  
Wastewater Management ◽  
Sewage Sludge Management ◽  
The Common ◽  
Green Chemicals

Wastewater and sewage sludge contain organic matter that can be valorized through conversion into energy and/or green chemicals. Moreover, resource recovery from these wastes has become the new focus of wastewater management, to develop more sustainable processes in a circular economy approach. The aim of this review was to analyze current sewage sludge management systems in Scandinavia with respect to resource recovery, in combination with other organic wastes. As anaerobic digestion (AD) was found to be the common sludge treatment approach in Scandinavia, different available organic municipal and industrial wastes were identified and compared, to evaluate the potential for expanding the resource recovery by anaerobic co-digestion. Additionally, a full-scale case study of co-digestion, as strategy for optimization of the anaerobic digestion treatment, was presented for each country, together with advanced biorefinery approaches to wastewater treatment and resource recovery.

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