Factors influencing the efficiency of constructed wetlands used for the treatment of intensive trout farm effluent

Sindilariu, Paul-Daniel; Brinker, Alexander; Reiter, Reinhard

doi:10.1016/j.ecoleng.2008.11.007

Cited by 56 publications

(44 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cripps and Bergheim, 2000;Lin et al, 2002; Schultz et al,. 2003;Lymbery et al, 2006;Sindilariu et al, 2007Sindilariu et al, , 2009Zachritz et al, 2008;Webb et al, 2012), and they compare favourably with mechanical filters that typically remove 10 -43% of total nitrogen and 49 -63% of total phosphorus (Mäkinen et al, 1988;Lekang et al, 2000).The results from our study indicated that plants were a necessary component of wetland ecosystems for the removal of nitrogen and phosphorus. The role of plants in constructed wetlands is not fully understood.…”

supporting

confidence: 54%

Section: The Role Of Constructed Wetlands In Treatment Of Effluent Frmentioning

confidence: 99%

“…see Jackson et al, 2003;Webb et al, 2012) and Webb et al (2012) found that halophyte wetlands had different removal efficiencies 12 for dissolved inorganic nitrogen and dissolved organic nitrogen. In addition, nutrient removal efficiencies in constructed wetlands are principally influenced by nutrient inflow concentration, hydraulic load (which is inversely related to hydraulic residence time) and the accumulation of solids, which lead to wetland clogging (Rousseau et al, 2008;Zachritz et al, 2008;Sindilariu et al, 2009). Design criteria to optimise hydraulic residence time and minimise clogging will require long-term studies in more realistic on-farm or pilot-scale wetlands irrigated with aquaculture effluent.…”

Section: The Role Of Constructed Wetlands In Treatment Of Effluent Frmentioning

confidence: 99%

See 2 more Smart Citations

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

Lymbery

Kay

Doupé

et al. 2013

Science of The Total Environment

View full text Add to dashboard Cite

Dryland salinity is a major problem affecting food production from agricultural land in Australia and throughout the world. Although there is much interest in using saline groundwater to grow marine fish on salt-affected farmland, the disposal of nutrient enriched, saline aquaculture effluent is a major environmental problem. We investigated the potential of the salt-tolerant NyPa Forage plant (Distichlis spicata L. Greene var. yensen-4a) to trap nutrients from saline aquaculture effluent and subsequently to provide a fodder crop for livestock. Sub-surface flow wetlands containing NyPa Forage were constructed and their efficacy in removing total nitrogen, ammonia, nitrite/nitrate, total phosphorus and orthophosphate was monitored under different levels of nutrients and salinity. The wetlands removed 60 -90% of total nitrogen loads and at least 85% of ammonia, nitrite/nitrate, total phosphorus and orthophosphate loads, with greater efficiency at high nutrient and low salinity levels. The above-ground yield, sodium, crude protein (CP) and in vitro dry matter digestibility (DMD) of NyPa Forage plants were measured after fertilisation with different nutrient levels and cropping at different frequencies. Yield of plants increased with increased nutrient, while nutritive value was greater when nutrients were applied but did not differ among nutrient levels. Yield was not affected by cropping frequency, but nutritive value was greatest when plants were cropped at intervals of 21 or 42 days. At optimum nutrient addition and cropping levels, the plants had a mean CP content of 16.7 % and an in vitro DMD of 67.6 %, equivalent to an energy value of 9.5 MJ kg -1 . Assuming an equivalent fibre content and voluntary food intake as grass hay, and no accumulation of other toxic minerals, these nutritive values would be sufficient for maintenance or moderate liveweight gains in dry adult sheep or cattle. Keywords:salinity; inland saline aquaculture; effluent; constructed wetlands; saltland pasture; agri-aquaculture 3 IntroductionSecondary salinisation, in which human activities lead to high concentrations of ions (principally sodium and chloride) in the landscape, is a major environmental problem affecting freshwater and soil in many arid and semi-arid areas of the world (Ghassemi et al., 1995;Rozema and Flowers, 2008). Secondary salinisation occurs because of rising water tables, as a result of irrigation (irrigation salinity) or land clearing (dryland salinity). It is a particular problem in economically less-developed countries (e.g. India, Tunisia, Morocco, Peru and Bolivia) although more-developed regions, such as Australia, may also be badly affected (Rozema and Flowers, 2008). In Australia, the widespread clearing of native vegetation has resulted in approximately 5.7 M ha of agricultural land being adversely affected by dryland salinity, and this figure may grow to 17 M ha by 2050 (National Land and Water Resources Audit, 2001).The salinisation of agricultural land in arid regions is largely irreversible because ...

show abstract

supporting

confidence: 54%

Section: The Role Of Constructed Wetlands In Treatment Of Effluent Frmentioning

confidence: 99%

Section: The Role Of Constructed Wetlands In Treatment Of Effluent Frmentioning

confidence: 99%

See 1 more Smart Citation

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

Lymbery

Kay

Doupé

et al. 2013

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…The application of constructed wetlands to aquaculture systems confirmed that they have great potential for water treatment in fish ponds (Sindilariu et al, 2009;Konnerup et al, 2011). Constructed wetlands are thought to be able to manage cyanobacteria bloom in three ways: they are efficient in nutrient removal (Sindilariu et al, 2009), which might prevent excessive nutrient accumulation in ponds; they could remove phytoplankton directly by filtration (Kuang et al, 2000), which could be helpful for cyanobacteria colony removal; and they might cause water mixing by the discharge of treated water, which would possibly reduce the growth and surface bloom formation of cyanobacteria species (Visser et al, 1996). In this study, a constructed wetland was utilized in an attempt to manipulate the taxonomic composition of the phytoplankton assemblages to control off-flavor problems at a channel catfish farm.…”

mentioning

confidence: 96%

The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences

Zhong

Gao

et al. 2011

Water Research

View full text Add to dashboard Cite

“…Providing inexpensive land is available, the integration of CWs into on-land aquaculture can be very cost-effective as they only require moderate capital investment and have low energy consumption and maintenance expenses [210][211][212]. However, CWs require relatively extensive areas of land, and would not be suitable in locations where land prices are high.…”

Section: Halophyte Wetlands (On-land)mentioning

confidence: 99%

The Development of Sustainable Saltwater-Based Food Production Systems: A Review of Established and Novel Concepts

Gunning

Maguire

Burnell

2016

Water

View full text Add to dashboard Cite

Abstract:The demand for seafood products on the global market is rising, particularly in Asia, as affluence and appreciation of the health benefits of seafood increase. This is coupled with a capture fishery that, at best, is set for stagnation and, at worst, significant collapse. Global aquaculture is the fastest growing sector of the food industry and currently accounts for approximately 45.6% of the world's fish consumption. However, the rapid development of extensive and semi-extensive systems, particularly intensive marine-fed aquaculture, has resulted in worldwide concern about the potential environmental, economic, and social impacts of such systems. In recent years, there has been a significant amount of research conducted on the development of sustainable saltwater-based food production systems through mechanical (e.g., recirculatory aquaculture (RAS) systems) methods and ecosystem-based approaches (e.g., integrated multi-trophic aquaculture (IMTA)). This review article will examine the potential negative impacts of monocultural saltwater aquaculture operations and review established (RAS) and novel (IMTA; constructed wetlands; saltwater aquaponics) saltwater-based food production systems and discuss their (potential) contribution to the development of sustainable and environmentally-friendly systems.

show abstract

Factors influencing the efficiency of constructed wetlands used for the treatment of intensive trout farm effluent

Cited by 56 publications

References 51 publications

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences

The Development of Sustainable Saltwater-Based Food Production Systems: A Review of Established and Novel Concepts

Contact Info

Product

Resources

About