Sustainability of wastewater treatment with microalgae in cold climate, evaluated with emergy and socio-ecological principles

Grönlund, Erik; Klang, Anders; Falk, Stefan; Hanaeus, Jörgen

doi:10.1016/j.ecoleng.2004.03.002

Cited by 73 publications

(28 citation statements)

References 34 publications

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“…This is achieved with appropriate design, filling material, planting, and incorporation of technical equipment (pumps, aeration, pre-treatment) which ensures optimal utilization of the TW area and volume. As TW typically require less or no supplemental energy, their operational costs can be approximately two orders of magnitude lower than those of a standard three-stage waste water treatment plants (WWTP) (Grönlund et al, 2004). The TW removal efficiency usually assessed by the decrease in biochemical and chemical oxygen demand (BOD, COD), total suspended solids (TSS) and nutrient (N, P) load, has already been studied widely (Kadlec & Wallace, 2009).…”

Section: Treatment Wetlands (Tw)mentioning

confidence: 99%

Ecosystem Technologies and Ecoremediation for Water Protection, Treatment and Reuse

Bulc¹,

Istenič²,

Šajn-Slak³

2012

Studies on Water Management Issues

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Section: Treatment Wetlands (Tw)mentioning

confidence: 99%

Ecosystem Technologies and Ecoremediation for Water Protection, Treatment and Reuse

Bulc¹,

Istenič²,

Šajn-Slak³

2012

Studies on Water Management Issues

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“…The message from figure 1 is that we cannot claim that an activity is sustainable if it is a result from a negotiation between contradicting environmental and economic demands [23]. Sometimes we can consider such results as being on the path to sustainability, but we must always consider the probable outcome of a created environmental debt, that needs to be taken care of (or paid for) later, on our path to sustainability [24][25][26][27]. Another aspect of the sustainability balancing is the hierarchical level in focus.…”

Section: Trade-offs and Balancingmentioning

confidence: 99%

“…If e.g. groundwater in a region is scarce and the withdrawal is larger than what is regenerated by the hydrological cycle, a low value of a water use indicator can be non-sustainable, while a much higher indicator valued in a groundwater Linnaeus ECO-TECH ´14, Kalmar, Sweden, November [24][25][26]2014 rich region is sustainable. The same reasoning is valid for discharges of nutrients as phosphorus and nitrogen.…”

Section: Environmental Sustainabilitymentioning

confidence: 99%

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A systems ecology view on sustainable wastewater treatment

Grönlund

Carlman

2017

Eco-Tech

Self Cite

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The environmental, economic, and social dimensions of sustainability, were connected in a systems ecology model with focus on wastewater treatment. Life Cycle Assessment and similar approaches are the most common systems analysis models in the wastewater treatment context. These models are beneficial, but are not the only possible approach to systems analysis. The model in this paper showed that the social and economic dimensions were inseparable intertwined, and both of them dependent on the environmental dimension for ecosystem services in the form of natural resources and regenerating capacity. The holistic view, as applied by a systems ecology approach, put focus on how sustainable wastewater treatment are limited to deliver something that can be assimilated by the environmental systems, and in the best applications, produce something that is again useful to the society.

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“…The carrying capacity and energy-based EF were calculated for the year 2000 and defined based on a case study in Gansu Province, China. Because the energy ecological footprint (EEF) model is a static assessment in which a time variable is not included, most international empirical studies have adopted years as the unit for calculating the EEFs of countries or regions [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Establishment and Applied Research on a Wetland Ecosystem Evaluation Model in Taiwan

Chen

2015

Sustainability

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Abstract:There is rich biodiversity and biomass in wetlands and these areas are important in ecosystems. Assessment of the environment of wetlands is critical in the management of pivotal ecosystems. The energy ecological footprint (EEF) is an improved form of the ecological footprint method based on the theory of energy value. EEF can be a useful tool for comparing and monitoring environmental impacts. EEF was used to investigate a national coastal wetland in Taiwan; i.e., Gaomei Wetlands. We created a wetland ecosystem evaluation model to quantify the EEF, ecological safety of the Gaomei Wetlands, and energy ecological carrying capacity to assess the current environmental situation of the area between 2007 and 2013. The research results provide a reference for environmental policy execution, strategy, and planning and suggestions for sustainable development of the Gaomei Wetlands. Our study showed that the per capita ecological carrying capacity of the Gaomei Wetlands experienced fluctuations during the time of the study. However, the per capita EF had substantial growth. The per capita ecological carrying capacity of the Gaomei Wetlands was influenced by the EFs of the fossil energy land, meadows, and croplands.

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Sustainability of wastewater treatment with microalgae in cold climate, evaluated with emergy and socio-ecological principles

Cited by 73 publications

References 34 publications

Ecosystem Technologies and Ecoremediation for Water Protection, Treatment and Reuse

Ecosystem Technologies and Ecoremediation for Water Protection, Treatment and Reuse

A systems ecology view on sustainable wastewater treatment

Establishment and Applied Research on a Wetland Ecosystem Evaluation Model in Taiwan

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