Ecological Engineering for Wastewater Treatment

Etnier, Carl; Guterstam, Björn

doi:10.1201/9781482238365

Cited by 15 publications

(4 citation statements)

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“…Treated wastewater (TWW) constitutes a sustainable water resource that has been used for aquaculture throughout Asia and the Far East for centuries including China [5,6] and India [7,8]. This practice had also been applied in Germany in the past for over a century [9], and was examined experimentally in several countries, including USA [10,11], Hungary [12], Peru [13], Egypt [14], and Israel [15,16].…”

Section: Introductionmentioning

confidence: 99%

The effect of tertiary treated wastewater on fish growth and health: Laboratory-scale experiment with Poecilia reticulata (guppy)

et al. 2019

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Treated wastewater (TWW) constitutes a sustainable water resource and has been used for fish culture in some countries around the world, although there are no comprehensive data on the effect of TWW on fish growth and health in the context of aquaculture production. Our objectives were to examine how fish culture in TWW affected fish growth and fitness, as well as compliance with the international standards for safe consumption. Guppy ( Poecilia reticulata ) fingerlings were reared in 0%, 50% and 100% tertiary TWW (TTWW), from the age of five days, for a period of four months. In water analyses, 33 out of 67 tested organic micropollutants (OMPs) were detected in the TTWW samples at least once, at concentrations that are typically reported in domestic TTWW. Fish survival ranged between 77–80% and did not differ between treatment groups. Fish growth and mortality following challenge infection with Tetrahymena sp. (which ranged between 64–68%), were similar among treatment groups. Of tested immunological parameters, lysozyme and anti-protease was similar among treatments while complement activity was highest in the 50% TTWW-reared fish. No abnormalities were observed in the histopathological analysis. Levels of heavy metals, polychlorinated-biphenyls (PCBs) and organochlorines (OCs) in fish were below the detection limit and below the Food and Agriculture Organization of the United Nations (FAO) and the European Union EU maximal permitted levels in food fish. Results suggest that the yield of fish grown in TTWW is potentially similar to that in freshwater, and the produced fish comply with the standards of consumer safety. The results are in line with previous studies that examined the feasibility of TWW-fed aquaculture.

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Section: Introductionmentioning

confidence: 99%

The effect of tertiary treated wastewater on fish growth and health: Laboratory-scale experiment with Poecilia reticulata (guppy)

et al. 2019

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“…A number of ecological systems have been operating around the world for decades including constructed wetlands 7 , 8 , Eco-Machines TM 4 , and biofilters 9 , 10 for residential, industrial, and municipal wastewater. These systems perform reliably based on tertiary wastewater standards 4 , while reducing operational costs 11 and environmental and human health impacts of wastewater 12 . The unique potential provided by ecologically engineered waste management is direct conversion of a liability (i.e.…”

Section: Introductionmentioning

confidence: 99%

Metagenomic analysis of an ecological wastewater treatment plant’s microbial communities and their potential to metabolize pharmaceuticals

et al. 2016

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Pharmaceuticals and other micropollutants have been detected in drinking water, groundwater, surface water, and soil around the world. Even in locations where wastewater treatment is required, they can be found in drinking water wells, municipal water supplies, and agricultural soils. It is clear conventional wastewater treatment technologies are not meeting the challenge of the mounting pressures on global freshwater supplies. Cost-effective ecological wastewater treatment technologies have been developed in response. To determine whether the removal of micropollutants in ecological wastewater treatment plants (WWTPs) is promoted by the plant-microbe interactions, as has been reported for other recalcitrant xenobiotics, biofilm microbial communities growing on the surfaces of plant roots were profiled by whole metagenome sequencing and compared to the microbial communities residing in the wastewater. In this study, the concentrations of pharmaceuticals and personal care products (PPCPs) were quantified in each treatment tank of the ecological WWTP treating human wastewater at a highway rest stop and visitor center in Vermont. The concentrations of detected PPCPs were substantially greater than values reported for conventional WWTPs likely due to onsite recirculation of wastewater. The greatest reductions in PPCPs concentrations were observed in the anoxic treatment tank where Bacilli dominated the biofilm community. Benzoate degradation was the most abundant xenobiotic metabolic category identified throughout the system. Collectively, the microbial communities residing in the wastewater were taxonomically and metabolically more diverse than the immersed plant root biofilm. However, greater heterogeneity and higher relative abundances of xenobiotic metabolism genes was observed for the root biofilm.

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“…(Kadlec, 2009, Bastian, 1993, The Arcata...) Applying ecological engineering technologies requires high qualification of the engineers and builders, because of that first projects received various reactions and discussions of citizens and specialists. Inappropriate evaluation of ecological risk (Jorgensen, 2014), incorrect technical decisions and a lot of other factors (Kangas, 2004, Etnier, 1996 can easily make a lot of unexpected problems (uncontrolled pollution flow, bad smell, ineffective cleaning process, etc.). Moreover, those problems cannot be easily solved -it requires a lot of effort and investment (Jorgensen, 2014).…”

Section: Introductionmentioning

confidence: 99%

Ecological Cleaning and Reusing of Wastewater. Possibilities, Advantages and Suggestions

Vaitkevičiūtė¹,

Jakubauskaitė²,

Vitkuvienė³

2017

Journal of Sustainable Architecture and Civil Engineering

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Ecological Engineering for Wastewater Treatment

Cited by 15 publications

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The effect of tertiary treated wastewater on fish growth and health: Laboratory-scale experiment with Poecilia reticulata (guppy)

The effect of tertiary treated wastewater on fish growth and health: Laboratory-scale experiment with Poecilia reticulata (guppy)

Metagenomic analysis of an ecological wastewater treatment plant’s microbial communities and their potential to metabolize pharmaceuticals

Ecological Cleaning and Reusing of Wastewater. Possibilities, Advantages and Suggestions

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