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van Nooijen, R.R.P. (author), Kolechkina, A.G. (author)Networks of open channels form an important category of environmental systems. They are used not only to transport irrigation and drainage water, but also as highways for barges transporting raw materials and goods. Automatic control of these systems poses specific problems. A local stability analysis for an open canal that is split into...journal article 2021
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Aghlmand, Reza (author), Nezami, Saeed Rasi (author), Abbasi, A. (author)In recent years, in addition to water resources’ quantity, their quality has also received much attention. In this study, the quality of the urban water distribution network in northwestern Iran was evaluated using the water quality index (WQI) method. Then, some important trace elements were investigated, and finally, the health risk...journal article 2021
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Pinel, I.S.M. (author), Biskauskaite, R. (author), Palova, E. (author), Vrouwenvelder, J.S. (author), van Loosdrecht, Mark C.M. (author)Temperature change over the length of heat exchangers might be an important factor affect-ing biofouling. This research aimed at assessing the impact of temperature on biofilm accumulation and composition with respect to bacterial community and extracellular polymeric substances. Two identical laboratory-scale plate heat exchanger modules...journal article 2021
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Law, Roger C. K. (author), Lai, Joseph H.K. (author), Edwards, David John (author), Hou, H. (author)Physical contact and respiratory droplet transmission have been widely regarded as the main routes of COVID-19 infection. However, mounting evidence has unveiled the risk of aerosol transmission of the virus. Whereas caution has been taken to avoid this risk in association with clinical facilities, facilities such as spa pools and Jacuzzis,...journal article 2021
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Streams, sewage, and shallow groundwater: stream-aquifer interactions in the Kathmandu Valley, NepalPrajapati, Rajaram (author), Overkamp, Nick N. (author), Moesker, Niek (author), Happee, K. (author), van Bentem, R. (author), Danegulu, Anusha (author), Manandhar, Bikesh (author), Thapa, Amber Bahadur (author), Davids, J.C. (author)The Kathmandu Valley in Nepal is facing a water quantity and quality crisis due to rapid urbanization and haphazard water and wastewater planning and management. Annually, groundwater extractions in the Kathmandu Valley exceed capture, resulting in groundwater table declines. Streams are often important sources of recharge to (or destination...journal article 2021
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Strohmenger, L. (author), Fovet, O. (author), Hrachowitz, M. (author), Salmon-Monviola, J. (author), Gascuel-Odoux, C. (author)Agriculture disturbs the biogeochemical cycles of major elements, which alters the elemental stoichiometry of surface stream waters, with potential impacts on their ecosystems. However, models of catchment hydrology and water quality remain relatively disconnected, even though the observation that dissolved organic carbon (DOC) and nitrate ...journal article 2021
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El Serafy, G.Y.H. (author), Schaeffer, Blake A. (author), Neely, Merrie-Beth (author), Spinosa, A. (author), Odermatt, Daniel (author), Weathers, Kathleen C. (author), Baracchini, Theo (author), Bouffard, Damien (author), Carvalho, Laurence (author)Water quality measures for inland and coastal waters are available as discrete samples from professional and volunteer water quality monitoring programs and higher-frequency, near-continuous data from automated in situ sensors. Water quality parameters also are estimated from model outputs and remote sensing. The integration of these data,...review 2021
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van Nooijen, R.R.P. (author), Kolechkina, A.G. (author)Management of water systems is becoming more and more complex; this creates opportunities for the application of control theory. These opportunities are the subject of a course on operational water management given to students of the water management department, Delft University of Technology, over the past 15 years. Traditional examples in...journal article 2021
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Ahmad, J.I. (author), Dignum, Marco (author), Liu, G. (author), Medema, G.J. (author), van der Hoek, J.P. (author)Drinking water distribution systems (DWDSs) have been thoroughly studied, but the concept of thermal energy recovery from DWDSs is very new and has been conceptualized in the past few years. Cold recovery results in a temperature increase of the drinking water. Its effects on drinking water quality and biofilm development are unclear. Hence, we...journal article 2021
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Imani, Maryam (author), Hasan, Md Mahmudul (author), Bittencourt, Luiz Fernando (author), McClymont, Kent (author), Kapelan, Z. (author)Resilience-informed water quality management embraces the growing environmental challenges and provides greater accuracy by unpacking the systems' characteristics in response to failure conditions in order to identify more effective opportunities for intervention. Assessing the resilience of water quality requires complex analysis of...journal article 2021
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Niu, Lixia (author), van Gelder, P.H.A.J.M. (author), Luo, Xiangxin (author), Cai, Huayang (author), Zhang, Tao (author), Yang, Qingshu (author)The Pearl River estuary is an ecologically dynamic region located in southern China that experiences strong gradients in its biogeochemical properties. This study examined the seasonality of nutrient dynamics, identified related environmental responses, and evaluated how river discharge regulated nutrient sink and source. The field...journal article 2020
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Daniel, D. (author), Gaicugi, Josphine (author), King, Richard (author), Marks, Sara J. (author), Ferrero, Giuliana (author)Risk assessment for drinking water systems combines sanitary inspections (SI) and water quality testing and is critical for effectively managing the safety of these systems. SI forms consist of question sets relating to the presence of potential sources and pathways of contamination specific to different types of water points, piped...journal article 2020
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Agudelo-Vera, Claudia (author), Avvedimento, Stefania (author), Boxall, Joby (author), Creaco, Enrico (author), de Kater, Henk (author), Nardo, Armando Di (author), Djukic, Aleksandar (author), Kapelan, Z. (author), Blokker, E.J.M. (author)Water temperature is often monitored at water sources and treatment works; however, there is limited monitoring of the water temperature in the drinking water distribution system (DWDS), despite a known impact on physical, chemical and microbial reactions which impact water quality. A key parameter influencing drinking water temperature is...review 2020
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Sakomoto, Takuya (author), Lutaaya, Mahmood (author), Abraham, E. (author)Intermittent water supply networks risk microbial and chemical contamination through multiple mechanisms. In particular, in the cities of developing countries, where intrusion through leaky pipes are more prevalent and the sanitation systems coverage is low, contaminated water can be a public health hazard. Although countries using intermittent...journal article 2020
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Daniel, D. (author), Diener, Arnt (author), van de Vossenberg, Jack (author), Bhatta, Madan (author), Marks, Sara J. (author)Accurate assessments of drinking water quality, household hygenic practices, and the mindset of the consumers are critical for developing effective water intervention strategies. This paper presents a microbial quality assessment of 512 samples from household water storage containers and 167 samples from points of collection (POC) in remote...journal article 2020
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Dingemans, Milou M.L. (author), Smeets, Patrick W.M.H. (author), Medema, G.J. (author), Frijns, Jos (author), Raat, Klaasjan J. (author), van Wezel, Annemarie P. (author), Bartholomeus, Ruud P. (author)Freshwater is a precious resource, and shortages can lead to water stress, impacting agriculture, industry, and other sectors. Wastewater reuse is increasingly considered as an opportunity to meet the freshwater demand. Legislative frameworks are under development to support the responsible reuse of wastewater, i.e., to balance benefits and...review 2020
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Teuchies, Johannes (author), Cox, Tom J.S. (author), Van Itterbeeck, Katrien (author), Meysman, F.J.R. (author), Blust, Ronny (author)Background: The International Maritime Organization (IMO) has set limits on sulphur content in fuels for marine transport. However, vessels continue to use these residual high-sulphur fuels in combination with exhaust gas cleaning systems (EGCS or scrubbers). Next to high sulphur, combustion of these fuels also results in higher emissions of...journal article 2020
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Zhang, Qingzhou (author), Zheng, Feifei (author), Kapelan, Z. (author), Savic, Dragan (author), He, Guilin (author), Ma, Yiyi (author)Water quality sensors are often spatially distributed in water distribution systems (WDSs) to detect contamination events and monitor quality parameters (e.g., chlorine residual levels), thereby ensuring safety of a WDS. The performance of a water quality sensor placement strategy (WQSPS) is not only affected by sensor spatial deployment that...journal article 2020
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Ahmad, J.I. (author), Liu, G. (author), van der Wielen, Paul (author), Medema, G.J. (author), van der Hoek, J.P. (author)Drinking water distribution systems (DWDSs) are used to supply hygienically safe and biologically stable water for human consumption. The potential of thermal energy recovery from drinking water has been explored recently to provide cooling for buildings. Yet, the effects of increased water temperature induced by this “cold recovery” on the...journal article 2020
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Pinel, I.S.M. (author), Kim, Lan Hee (author), Proença Borges, Vitor R. (author), Farhat, Nadia M. (author), Witkamp, Geert Jan (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)Phosphate limitation has been suggested as a preventive method against biofilms. P-limited feed water was studied as a preventive strategy against biofouling in cooling towers (CTs). Three pilot-scale open recirculating CTs were operated in parallel for five weeks. RO permeate was fed to the CTs (1) without supplementation (reference), (2)...journal article 2020