Frédéric Monette's research while affiliated with École de Technologie Supérieure and other places

Publications (31)

Article
Aluminosilicate-catalyzed electrochemical decomposition of ammonium cation (NH4+NH4+) in water was investigated using NH4+-saturated clinoptilolite and copper-nickel electrodes in the presence of different salts and acidic species. The results showed beneficial roles of chloride anion and moderately acidic media. NH4+ adsorbed by the zeolites was c...
Article
With the strengthening of regulatory requirements regarding ammoniacal nitrogen, several water-treatment plants have to reduce their nitrogen load released. In the aim of promoting nitrification in a Biocarbon® biological filter, aeration, washing parameter modification, and flow reduction tests were conducted. Monitoring was carried out at various...
Article
To develop a better understanding for fixed biomass processes, the development of a nitrifying bacterial biofilm, as well as the performance of treatment during modifications to operational conditions of a full-scale submerged biological filter were examined. The development of the nitrifying biofilm was investigated at four depth levels (1, 2, 4 a...
Article
Full-text available
Changes in extreme precipitation should be one of the primary impacts of climate change (CC) in urban areas. To assess these impacts, rainfall data from climate models are commonly used. The main goal of this paper is to report on the state of knowledge and recent works on the study of CC impacts with a focus on urban areas, in order to produce an...
Article
Aluminosilicate catalysts (Bentonite, illite-montmorillonite mixture ([I + M]), kaolinite and Clinoptilolite) showed catalytic activity in the electroreduction of nitrates using stainless steel electrodes, in the presence of salts. Addition of NaCl and KCl resulted in process enhancement, affording nitrate removal yields of up to 95% after 30–60 mi...
Article
Phytoextraction is one of the main phytoremediation techniques and it has often been described as a potentially feasible in situ soil decontamination method of large amounts of heavy metals, organic pollutants and explosive compounds. As this remediation technique is approaching extensive on-field experimentation and commercialization, research foc...
Article
Urban rainfall runoff has been a topic of increasing importance over the past years, a result of both the increase in impervious land area arising from constant urban growth and the effects of climate change on urban drainage. The main goal of the present study is to assess and analyze the correlations between rainfall variables and common indicato...
Article
Projections from the Canadian Regional Climate Model (CRCM) for the southern part of the province of Québec, Canada, suggest an increase in extreme precipitation events for the 2050 horizon (2041–2070). The main goal of this study consisted in a quantitative and qualitative assessment of the impact of the 20 % increase in rainfall intensity that le...
Article
The objective of the study is to compare different development scenarios of a black water source-separation sanitation system (BWS) that could be environmentally and economically more viable than a conventional system (CONV). Scenarios performance is evaluated using life cycle assessment and environmental life cycle costing. System boundaries inclu...
Article
Very few tools are available for assessing the impact of combined sewer overflows (CSOs) on receiving aquatic environments. The main goal of the study was to assess the ecotoxicological risk of CSOs for a surface aquatic ecosystem using a coupled “substance and bioassay” approach. Wastewater samples from the city of Longueuil, Canada CSO were colle...
Article
Full-text available
The municipal sanitation system based on black water source-separation (BWS) is often advanced as a viable environmental alternative to conventional systems (CONV). However, current studies have not led to any formal conclusions on the environmental advantage of such a system. The objective of this study is to compare the environmental performances...
Article
Full-text available
The black water and grey water source-separation sanitation system aims at efficient use of energy (biogas), water and nutrients but currently lacks evidence of economic viability to be considered a credible alternative to the conventional system. This study intends to demonstrate economic viability, identify main cost contributors and assess criti...
Article
Effective and selective nitrate electroreduction with low energy consumption was achieved at room temperature through synergistic interactions of the distance between the electrodes (D), voltage applied (U), initial pH and reaction time. Almost 90–95% of nitrates were converted with energy consumption exceeding 8×10−3kWh/g-N for D=3–5mm and U=4.0–4...
Article
Carboxymethylcellulose (CMC) and beta-cyclodextrin (beta-CD)-based polymers functionalized with two types of quaternary ammonium compounds (QACs), the alkaquat DMB-451 (N-alkyl (50% C14, 40% C12, 10% C10) dimethylbenzylammonium chloride) (DMD-451) named polymer DMB-451, and FMB 1210-8 (a blend of 32 w% N-alkyl (50% C14, 40% C12, 10% C10) dimethylbe...
Article
Full-text available
Mots cles : recirculation, boues, coagulation-floculation, traitement, eau usee, grande echelle. Abstract: Two sequences of tests were carried out at the Centre d'epuration Rive-Sud wastewater treatment plant (Longueuil, Que.) to evaluate the performances of a coagulation-flocculation process with chemical sludge recycling. The tests consisted in f...
Article
Three series of tests were carried out at laboratory and pilot levels to examine the functions of reagents (coagulant, flocculant, sludge) involved in a coagulation-flocculation process with chemical sludge recycling. Results showed that the recycled sludge participates favourably in the process. The gains in efficiency are particularely significan...
Article
Six series of tests were carried out to have a better understanding of the stability and efficiency of a coagulation-flocculation process with chemical sludge recycling. The tests consisted in sequential sludge recycling in 100-L pilot reactors. Other tests were performed to examine the stability following wastewater loading variations. Results sho...
Article
Ion-exchanged montmorillonite-rich materials (ca. 96% purity) like NaMt, Fe(II)Mt, Co(II)Mt, Ni(II)Mt and Cu(II)Mt showed catalytic activity in the ozonation of oxalic acid in water at room temperature, in the pH range 3.4–6.0. The conversion of oxalic acid exceeds 95% after 180 min of ozone bubbling in the presence of Fe(II)Mt. The oxalic acid rem...
Article
in the second reactor, and nitrifi cation rates comparable to those reported in the literature were observed for a temperature range of 3 to 16°C. An empirical DO-limited model was validated for the fi rst reactor while in the second reactor nitrifi cation was found to be either DO limited or total-ammonia-nitrogen limited, depending on nitrifi cat...
Article
Metal cations were removed from water by coagulation–flocculation of the chitosan–montmorillonite system. Co2+, Ni2+ and Cu2+ were used as probe cations. It was found that both chitosan and montmorillonite contribute to the metal ion removal, when used separately, and that coagulation–flocculation strongly depends on the pH and composition of the l...
Article
Résumé Le chitosane est une substance biodégradable d’origine naturelle obtenue par la désacétylation de la chitine, qui se trouve dans l’exosquelette des crustacés. Une de leurs applications plus récentes est le traitement des eaux. Pour favoriser l’utilisation du chitosane des exosquelettes de crustacés (crevettes, crabes, etc.) dans le traitemen...
Article
A comprehensive model based on a new approach was developed to simulate the duckweed growth under controlled conditions. Contrary to other approaches which use the specific growth rate, this approach uses the intrinsic growth rate which permits to differentiate the effect of duckweed mat density from that of temperature, photoperiod and phosphorus-...
Article
Rapport d'observations dans le cadre du Programme de support institutionnel à la recherche et à l'enseignement (PSIRE)
Article
Chitosan is a natural biodegradable biopolymer produced from chitin, a polysaccharide derived from the shells of shrimp, crab and lobster. The development of commercial applications of chitin and chitosan in different fields such as biomedicine, nutrition, food, processing, agriculture, cosmetics, and wastewater treatment has rapidly expanded in re...
Article
Distribution of the acid–base strengths of various ion-exchanged montmorillonites was assessed through thermal programmed desorption (TPD) of NH3 and CO2. Accurate acid–base measurements can be achieved via deconvolution of perfectly symmetrical peaks, under optimal carrier gas throughput and heating rate, estimated though a factorial experiment de...
Article
Full-text available
Interactions of montmorillonite-rich clay materials with enzymes were investigated. A 2:1 layer type raw clay mineral was purified, then ion-exchanged with Na+, K+ (Na-Mt and K-Mt), Ca2+ and Mg2+ (Ca- Mt and Mg-Mt), and further contacted with various enzyme suspensions containing α-amylase, β- amylase, cellulase, invertase, lipase, peroxidase, pect...
Article
Full-text available
Aluminum-based coagulants in drinking water treatment are widely used across Canada. According to the literature, the presence of aluminum in drinking water poses possible risks to humans. Preliminary studies investigating the use of alterna-tive coagulating agents such as iron-based coagulants, lanthanide salts and organic coagulants have already...
Article
Six series of tests were carried out to have a better understanding of the stability and efficiency of a coagulation-flocculation process with chemical sludge recycling. The tests consisted in sequential sludge recycling in 100-L pilot reactors. Other tests were performed to examine the stability following wastewater loading variations. Results sho...
Article
Three series of tests were carried out at laboratory and pilot levels to examine the functions of reagents (coagulant, flocculant, sludge) involved in a coagulation-flocculation process with chemical sludge recycling. Results showed that the recycled sludge participates favourably in the process. The gains in efficiency are particularely significan...
Article
Two sequences of tests were carried out at the Centre depuration Rive-Sud wastewater treatment plant (Longueuil, Que.) to evaluate the performances of a coagulation-flocculation process with chemical sludge recycling. The tests consisted in following the evolution of the quality of the treated water when two flowsheets are supplied simultaneously i...

Citations

... As a typical of advanced bioreactor, biological aerated filter (BAF) maintains high organic loading, high biomass concentration, and high hydraulic and was usually used for secondary treatment of biological treatment effluent that features low levels of COD and SS (Martin et al. 1982;Abou Elela et al. 2017;Bourgeois et al. 2018;Marsidi et al. 2018). Meanwhile, among numerous advanced oxidation processes (AOPs), O 3 /H 2 O 2 oxidation was regarded as a cost-efficient approach to improve performance of subsequent bio-treatment and decompose refractory pollutants because of a series of advantages (i.e., not importing other chemicals, powerful oxidation ability, not leading to nonsecondary pollution) (Cortez et al. 2010;Lee et al. 2011;Tang et al. 2015Tang et al. , 2019. ...
... In terms of the matrix, the bio-composites materials need a type of binder to transfer mechanical stresses to the fibers, having significant properties is due to the interaction between the reinforcements and the matrix that protects them from environmental conditions. In addition, the matrix used in this study is Chitosan due to its biodegradability, biocompatibility, as well as its non-toxic and renewable nature [15,16]. In general, the Chitosan was derived from various natural sources such as seafood, shrimps, crustaceans, fungi, insects and some algae [17][18][19]. ...
... However, as the Figure shows comparable nitrate conversion% values for applied potentials of − 1.80 V and − 2.10 V (vs. SCE), the − 1.80 V potential is enough, with no need for higher overpotentials described in earlier reported systems (Enmili et al., 2016;Talhi et al., 2011;Seetharam et al. Kalkur). ...
... However, waste disposal of harvested Cd-containing plants is another emerging problem. In this aspect, instead of biomass pyrolysis of Cd hyperaccumulation plants such as Solanum nigrum L.or Sedum alfredii (Dilks et al., 2016), phytoextraction of Cd-polluted soils by energy plants is a promising strategy since energy plants have well-documented method to be reused for biofuels production. ...
... It was reported that the use of high temperature accelerated the demineralization reaction by promoting the penetration of the solvent into the chitin matrix. Thus, some demineralization reactions were carried out at higher temperature [13]. Furthermore, it was reported that the penetration of solvent into chitin strongly depended on the particle sizes. ...
... The constant scaling method or delta change method implements a constant factor to observed historical daily precipitation data to obtain simulated/downscaled precipitation (Anandhi et al., 2011;Fowler et al., 2007;Gooré Bi et al., 2017;Hansen et al., 2017;Mpelasoka and Chiew, 2009). The constant factor is estimated as the difference or ratio of baseline precipitation and evaluation precipitation. ...
... Many wastewater treatment plants use the coagulation/ flocculation process to limit the release of certain pollutants to the receiving water course [11]. Coagulation and flocculation process is an essential and critical step of drinking water treatment as well as wastewater it has a large range of application in treatment technology. ...
... Storm-water related events are becoming more frequent and intense as one of the consequences of climatic changes across the globe, negatively impacting buildings and urban infrastructure, both financially and socially. To mitigate these impacts in dense urban areas, low impact development (LID) strategies continue to be developed and adopted [1][2][3][4][5][6][7]. Roof surfaces constitute a significant portion of urban impermeable cover. ...
... The typical products of MBOH conversion over natural aluminosilicate samples were MBYNE and Prenal formed via acid pathway of the reaction as well as acetone and acetylene, confirming the presence of basic centers on the surface. Indeed, many authors [51][52][53] proved there is no clay having only acidic or basic properties because both types of sites are present on the surface and transforms to each other under definite conditions such as water content, pH, etc. ...
... ADP was significantly and positively correlated with EMCs of NO 2+3 , TKN, TN, OP, TP, and Cu; no negative correlations were found. This result is logical since longer ADPs allow for more pollutants to accumulate or build up on watershed surfaces before the wash-off process begins at the onset of rainfall (Bi et al., 2015;Dos Santos and Gastaldini, 2016;Kayhanian et al., 2007). This relationship is valid until a carrying capacity (i.e., maximum dry matter a surface can hold; Opher and Friedler, 2010) is reached. ...