Opportunities for public water utilities in the market of energy from water

Mol, Stefan; Kornman, J. M.; Kerpershoek, A. J.; Helm, A. W. C. van der

doi:10.2166/wst.2011.493

Cited by 12 publications

(4 citation statements)

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“…Therefore, in order to achieve this target, the pursuit of new and clean low-carbon energy resources is necessary (Jiang et al, 2010). Recently energy recovery from the water cycle has been suggested, including thermal energy from surface water, groundwater, wastewater and drinking water (Mol et al, 2011;van der Hoek, 2012a). With respect to surface water, energy recovery has already been successfully applied in practice.…”

Section: Introductionmentioning

confidence: 99%

Thermal energy recovery from chlorinated drinking water distribution systems: Effect on chlorine and microbial water and biofilm characteristics

Zhou

Ahmad

Hoek

et al. 2020

Environmental Research

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Thermal energy recovery from drinking water has a high potential in the application of sustainable building and industrial cooling. However, drinking water and biofilm microbial qualities should be concerned because the elevated water temperature after cold recovery may influence the microbial activities in water and biofilm phases in drinking water distribution systems (DWDSs). In this study, the effect of cold recovery on microbial qualities was investigated in a chlorinated DWDS. The chlorine decay was slight (1.1%-15.5%) due to a short contact time (~60 s) and was not affected by the cold recovery (p > 0.05). The concentrations of cellular ATP and intact cell numbers in the bulk water were partially inactivated by the residual chlorine, with the removal rates of 10.1%-16.2% and 22.4%-29.4%, respectively. The chlorine inactivation was probably promoted by heat exchangers but was not further enhanced by higher temperatures. The higher water temperature (25°C) enhanced the growth of biofilm biomass on pipelines. Principle coordination analysis (PCoA) showed that the biofilms on the stainless steel plates of HEs and the plastic pipe inner surfaces had totally different community compositions. Elevated temperatures favored the growth of Pseudomonas spp. and Legionella spp. in the biofilm after cold recovery. The community functional predictions revealed more abundances of five human diseases (e.g. Staphylococcis aureus infection) and beta-lactam resistance pathways in the biofilms at higher temperature. Compared with a previous study with a non-chlorinated DWDS, chlorine dramatically reduced the biofilm biomass growth but raised the relative abundances of the chlorine-resistant genera (i.e. Pseudomonas and Sphingomonas) in bacterial communities.

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Section: Introductionmentioning

confidence: 99%

Thermal energy recovery from chlorinated drinking water distribution systems: Effect on chlorine and microbial water and biofilm characteristics

Zhou

Ahmad

Hoek

et al. 2020

Environmental Research

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“…Hydropower generation could be possible at these two strategic locations. Mol et al (2011) presented an inventory of the possibilities to recover sustainable energy from the water cycle by taking advantage of different water flows in a municipal/domestic water supply sector. It also discussed the role that public water utilities should play in the market of harnessing energy from water flow.…”

Section: Literature Reviewmentioning

confidence: 99%

Converting Dam: from Water Supply to Hydropower Generation

Hwee¹,

Poon²,

Lu³

et al. 2017

JETA

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This study investigates the feasibility of converting four (4) existing single purpose water supply reservoir schemes into conjunctive hydropower operation that could supply raw waters to respective water treatment plants and at the same time, generate power. These dams with proper retrofitting exercises could be a potential hydropower cum direct water supply reservoir operation. The change in operation does not only berth well with current trend of dual or multipurpose functions of the reservoir scheme but also in light of emerging role of hydropower as a mature and steady source of renewable energy. These dams were assessed for retrofitting with turbine to generate hydroelectricity and at the same time, to supply raw water to both water supply schemes. Despite the advantages of this dual function of the existing reservoirs schemes, this study however concludes infeasible tasks as only less than 1 MW of firm power can be harnessed. To reconfigure these existing infrastructures for purpose other than for the single purpose of water supply requires optimum storage capacity and hydraulic head, the two most important variables, in essence, especially for viable hydropower generation. In addition, the height of the dam dictates critically the magnitude of effective head but unfortunately unavailable readily for most of the existing dams evaluated in this Study. They are less than 60 m in height in general. The design philosophy for the reservoir schemes at their preliminary conceptualization also does not support future multipurpose components of the reservoir operation. However a positive development of these potential schemes could be beneficial to supply power to the local community in the surrounding areas in additional to plant consumption.

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“…organic material in wastewater). A first inventory was made by Van der Hoek (2012) and Mol et al (2011). A more detailed study to energy recovery from the water cycle in Amsterdam followed in 2013 (Van der Hoek et al, in press).…”

Section: Integrated Cycle Initiativesmentioning

confidence: 99%

Amsterdam as a sustainable European metropolis: integration of water, energy and material flows

Hoek

Struker²,

Danschutter³

2015

Urban Water Journal

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Amsterdam has the ambition to develop as a competitive and sustainable European metropolis. The flows of energy, water and resources within the urban environment have a large potential to contribute to this ambition. The overall mass balances of phosphate, food, water, energy and material imports in the Amsterdam region have already been mapped. Through a transition from a linear usage of resources and waste production without feedbacks of resources, towards a sustainable management of urban resources with circular flows of resources, the sustainability of cities can be increased. This Urban Harvesting Concept can be applied in Amsterdam. The challenge is to operationalize this concept in practice. Two municipal companies in Amsterdam, Waternet and AEB, take initiatives to create closed cycles within their working areas. Waternet is the water company of Amsterdam and surroundings responsible for all water activities. AEB is the company which operates two waste-to-energy plants in Amsterdam. The focus is on water, energy, waste and material flows. Integration of these cycles is also part of the initiatives. These circular flows result in economic benefits and sustainability benefits, either expressed as Ecopoints or CO 2 -emissions.

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Opportunities for public water utilities in the market of energy from water

Cited by 12 publications

References 0 publications

Thermal energy recovery from chlorinated drinking water distribution systems: Effect on chlorine and microbial water and biofilm characteristics

Thermal energy recovery from chlorinated drinking water distribution systems: Effect on chlorine and microbial water and biofilm characteristics

Converting Dam: from Water Supply to Hydropower Generation

Amsterdam as a sustainable European metropolis: integration of water, energy and material flows

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