Recycling of aquaculture wastewater and sediment for sustainable corn and water spinach production

Tung, Tra Van; Tran, Quoc Ba; Thảo, Nguyễn Thị Phương; Quoc, Le Pham Tan; Hieu, Tran Thi; Le, Son T.; Tuấn, Nguyễn Quốc; Sonne, Christian; Lam, Su Shiung; Hải, Lê Thanh; Le, Quyet Van

doi:10.1016/j.chemosphere.2020.129329

Cited by 19 publications

(5 citation statements)

References 7 publications

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“…One strategy to address these issues is to blend aquaculture operations and rice cultivation. Using wastewater from aquaculture ponds (Van Tung et al 2021 ) or integrating aquaculture of suitable species in rice fields (Li et al 2021b ) improves the utilization rate of water and reduces wastewater discharge rates. Consequently, these methods have been promoted in some regions, especially in arid and semi-arid regions.…”

Section: Discussionmentioning

confidence: 99%

“…Soil bacteria play a crucial role in the soil ecosystem, and their diversity and community structure have been widely studied in different rice field environments (Chen et al 2017 ; Huang et al 2020 ; Li et al 2021b ). They transform soil structure, decompose organic matter, circulate soil nutrients (Baldrian 2019 ; Kumar et al 2019 ; Hermans et al 2020 ), and support plant growth (Garbeva et al 2004 ; Tartaglia et al 2020 ; Van Tung et al 2021 ). Soil bacterial community structure can also be an indicator of the quality of the soil ecosystem and of the soil itself (Hermans et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Bacterial communities in co-cultured fish intestines and rice field soil irrigated with aquaculture wastewater

Guan

2022

AMB Expr

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In some regions, integrated rice-fish farms have been developed to balance the needs of aquaculture wastewater discharge and rice field irrigation. In this type of aqua-agriculture system, soil is irrigated with aquaculture wastewater, and intestinal bacteria in cultured fish species likely impact soil bacteria through irrigation. However, little is known about the relationship between soil bacteria and intestinal bacteria in some carp species commonly co-cultured in some Asian regions. Therefore, we co-cultured five carp species in aquaculture ponds and used the aquaculture wastewater to irrigate rice fields for over 5 years, and then compared carp intestinal bacterial communities with rice field soil bacterial communities. The results from analysis of similarity and SourceTracker analysis showed that a low similarity (R = 0.7908, P = 0.001) and contribution (an average of 9.9% of bacterial genera) of intestinal bacteria to soil bacterial communities although 77.5% of soil bacterial genera were shared by intestinal bacteria. Our results also indicated that intestinal bacteria in the numerically dominant fish species in the co-culture system do not necessarily impact soil bacteria more significantly than those of less abundant carp species, and that intestinal bacterial communities in one single fish species may impact certain soil bacterial phyla more significantly than others. Our results provide a better understanding of the impact of aquaculture wastewater on rice fields and will be helpful for the development of this type of aqua-agriculture system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bacterial communities in co-cultured fish intestines and rice field soil irrigated with aquaculture wastewater

Guan

2022

AMB Expr

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“…The ability to collect and use excess nutrients from metabolic waste and uneaten feed depends greatly on the farming system. In freshwater ponds or RAS, settled sediments, wastewater, and/or concentrated sludge can be extracted and used for several purposes, including direct fertilisation of cropland or ponds, 120 and to produce fertiliser, compost, 121 biogas, or biofuel 122 . The co‐location of aquaculture and the other agricultural or industrial activity is, however, often critical to their success because of the logistics and costs involved in the transport of the wastes.…”

Section: Fourth Principle: Using and Recycling Byproducts Of Agro‐ An...mentioning

confidence: 99%

Transforming sustainable aquaculture by applying circularity principles

Chary,

van Riel,

Muscat

et al. 2023

Reviews in Aquaculture

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A circular economy is considered one way to reduce environmental impacts of human activities, by more efficient use of resources and recovery, resulting in less waste and emissions compared to linear take‐make‐dispose systems. Muscat et al. developed five ecological principles to guide biomass use towards a circular economy. A few studies have demonstrated environmental benefits of applying these principles to land‐based food systems, but to date, these principles have not been explored in aquaculture. The current study expands on these principles and provides a narrative review to (i) translate them to aquaculture, while identifying implications for the main species and production systems, and (ii) identify the main pathways to make aquaculture more circular. We show that the underlying concepts of the ‘safeguard’, ‘entropy’, and ‘recycle’ principles have been well researched and sometimes well implemented. In contrast, the ‘avoid’ and ‘prioritise’ principles have been explored much less; doing so would provide an opportunity to decrease environmental impacts of aquaculture at the food‐system level. One example is prioritising the production of species that contribute to food and nutrition security, have low environmental impacts and thinking at wider food system scale to avoid feed‐food competition in aquaculture. We identified six priorities that could make aquaculture more circular: (i) increase production and demand for the most essential species, (ii) decrease food loss and waste at farm and post‐harvest stages, (iii) support nutrient recycling practices at multiple scales, (iv) adapt aquafeed formulations, (v) inform consumers about benefits of species of low trophic levels and other environmentally friendly aquatic foods, and (vi) address urgent research gaps.

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“…The reusing of wastewater is determined by economic factors as it is often either used for the recirculation of organic matter, to act as natural fertilizers, or due to a shortage of water resources [27,28]. For instance, wastewater and greywater (households' wastewater with no fecal contamination) were used for irrigation of agricultural products, as well as indoor activities involving toilet flushing and even for potable use [17][18][19][20][21].…”

Section: Reuse Of Treated Watermentioning

confidence: 99%

“…Wastewater discharge to surface water resources imposes public health concerns and directly affects water resources, causing both enteric and non-enteric diseases, especially with the recent COVID-19 pandemic [24][25][26]. On the contrary, wastewater reuse was proposed mainly because of the shortage of water supplies [27,28]. This demanded technical solutions for reuse of treated water for both non-potable uses, such as irrigation, with reported limitations (e.g., alterations of soil physicochemical parameters, microbiota [29], soil fertility, and subsequent productivity [21] and soil pH [29]) to be considered and de facto wastewater reuse associated with raised concerns (e.g., increased drinking water risks in case of wastewater effluent in source water [30]).…”

Section: Introductionmentioning

confidence: 99%

Insights into Gastrointestinal Virome: Etiology and Public Exposure

Nour

Hanif

Ryan

et al. 2021

Water

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Recycled wastewater is widely used owing to the potential shortage of water resources for drinking purposes, recreational activities, and irrigation. However, gut microbiomes of both human beings and animals negatively affect this water quality. Wastewater contamination is continuously monitored, using fecal contamination indicators or microbial source tracking approaches, to oppose arising enteric infections. Viral gastroenteritis is considered a principal manifestation of waterborne pathogenic virome-mediated infections, which are mainly transmitted via the fecal-oral route. Furthermore, acquired enteric viromes are the common cause of infantile acute diarrhea. Moreover, public exposure to wastewater via wastewater discharge or treated wastewater reuse has led to a significant surge of public health concerns. In this review, we discussed the etiology of waterborne enteric viromes, notably gastrointestinal virus infections, and public exposure to municipal wastewater. Conclusively, the early human virome is affected mainly by birth mode, dietary behavior, and maternal health, and could provide a signature of disease incidence, however, more virome diversification is acquired in adulthood. A multi-phase treatment approach offered an effective means for the elimination of wastewater reuse mediated public risks. The insights highlighted in this paper offer essential information for defining probable etiologies and assessing risks related to exposure to discharged or reused wastewater.

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Recycling of aquaculture wastewater and sediment for sustainable corn and water spinach production

Cited by 19 publications

References 7 publications

Bacterial communities in co-cultured fish intestines and rice field soil irrigated with aquaculture wastewater

Bacterial communities in co-cultured fish intestines and rice field soil irrigated with aquaculture wastewater

Transforming sustainable aquaculture by applying circularity principles

Insights into Gastrointestinal Virome: Etiology and Public Exposure

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