Serial particle size fractionation and characterisation of an aquacultural effluent

Cripps, Simon J.

doi:10.1016/0044-8486(95)00021-s

Cited by 76 publications

(51 citation statements)

References 9 publications

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“…The nutrient concentration from serial fractionation decreased with decreasing mesh size, which was similar to previous studies (Chen et al, 1993;Cripps, 1995) and can be explained from the particle volume and nutrient distributions according to size fractionation. Unlike this study, Cripps (1995) found a significantly greater concentration of TPP in suspended solids containing In the present study, small particles, which could not be removed by the filter and recycled or accumulated, were considered. Thus, fish were fasted for 24 hours before water sampling to eliminate variability caused by factors such as diurnal feeding cycles, culture system management irregularities, or tank cleaning operations.…”

Section: Discussionsupporting

confidence: 75%

“…removed by a microscreen drum filter with a mesh size of 60 µm. Cripps (1995) reported that the TSS concentration of smaller particles was considerably less than that of larger particles. From the results of this study, a reduction in TSS by microsieve filtration seemed to be effective using a 75 µm mesh size.…”

Section: Discussionmentioning

confidence: 99%

“…As noted by Cripps (1995), parametric multiple filtration may adversely influence the character of the effluent, so we obtained samples for each particle size fraction from a sample pool (20 L). The nutrient concentration from serial fractionation decreased with decreasing mesh size, which was similar to previous studies (Chen et al, 1993;Cripps, 1995) and can be explained from the particle volume and nutrient distributions according to size fractionation.…”

Section: Discussionmentioning

confidence: 99%

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Serial Particle Size Fractionation and Water Quality in a Recirculating Aquaculture System for Eel

Lee¹

2010

Fisheries and aquatic sciences

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The effects of suspended solids size on culture water quality were determined in a commercial recirculating aquaculture system (RAS) for Japanese eel, Anguilla japonica. The particulate phase of the culture water was serially divided into six size fractions using 300, 200, 100, 75, 45, and 26 µm pore size stainless sieves. The total, dissolved, and particulate nitrogen and phosphorus, and suspended solids for each fraction were determined. The concentration ranges in the fractions were: total nitrogen, 164-148 mg L -1 ; total phosphorus, 20.4-15.5 mg L -1 ; and total suspended solids, 8.1-6.1 mg L -1 . The concentration of total nitrogen and total phosphorus decreased significantly (P<0.05) with a 26 µm and 200 µm filter pore size, respectively. Nutrients from dissolved organic substances were much higher than from particulates. Analysis of particle size fractionation and its effects on water quality is useful to estimate removal efficiencies of a commercial effluent screening device for solid management and development of solid removal systems.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Serial Particle Size Fractionation and Water Quality in a Recirculating Aquaculture System for Eel

Lee¹

2010

Fisheries and aquatic sciences

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“…Hennessy et al [28], Bergheim et al [29] and Cripps [30] who reported a wide range of total solid concentrations of 1.6-14.1, 0-20.1, and 6.9 mg L −1 , respectively. However, these concentrations can vary widely depending on the management of aquaculture systems.…”

Section: Solids Loadsmentioning

confidence: 99%

Sustainable Treatment of Aquaculture Effluents—What Can We Learn from the Past for the Future?

2014

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Many aquaculture systems generate high amounts of wastewater containing compounds such as suspended solids, total nitrogen and total phosphorus. Today, aquaculture is imperative because fish demand is increasing. However, the load of waste is directly proportional to the fish production. Therefore, it is necessary to develop more intensive fish culture with efficient systems for wastewater treatment. A number of physical, chemical and biological methods used in conventional wastewater treatment have been applied in aquaculture systems. Constructed wetlands technology is becoming more and more important in recirculating aquaculture systems (RAS) because wetlands have proven to be well-established and a cost-effective method for treating wastewater. This review gives an overview about possibilities to avoid the pollution of water resources; it focuses initially on the use of systems combining aquaculture and plants with a historical review of aquaculture and the treatment of its effluents. It discusses the present state, taking into account the load of pollutants in wastewater such as nitrates and phosphates, and finishes with recommendations to prevent or at least reduce the pollution of water resources in the future.

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“…1) are remediated during primary treatment which is more complex. Notably, particulates in LBAWW are typically 1.5 to 210 µm (Maillard et al 2005), with the majority being < 30 µm (Cripps 1995, Jones et al 2002. Broadly speaking, the larger fraction of this size range (i.e.…”

Section: Solid Constituentsmentioning

confidence: 99%

Wastewater treatment for land-based aquaculture: improvements and value-adding alternatives in model systems from Australia

Castine¹,

McKinnon²,

Paul³

et al. 2013

Aquacult. Environ. Interact.

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Land-based aquaculture is an integral part of global aquaculture production for fishes (28.8 million t), molluscs (13.1 million t) and crustaceans (5.0 million t; FAO 2010, Hall et al. 2011. The majority of landbased systems which support the intensive culture of fresh, brackish and marine water organisms do so through the addition of high-protein feeds to sustain the rapid growth of intensively farmed animals ABSTRACT: Settlement ponds are used to remove particulate and dissolved nutrients in Australian land-based aquaculture wastewater. At best, marine and brackish water settlement ponds reduce total suspended solids by 60%, but their efficiency is inconsistent. Functional improvements to nutrient removal systems are essential to provide uniform and predictable treatment of flow-through aquaculture wastewater. Furthermore, environmental regulation of discharge from intensive systems in Australia is increasing, providing the impetus to upgrade rudimentary singlestep settlement pond systems. We characterise technologies used for land-based aquaculture wastewater treatment prior to discharge from shrimp systems in Australia. We identify opportunities to integrate technologies developed for the treatment of municipal wastewaters and intensive recirculating aquaculture systems, and use these to develop a model system for intensive shrimp farm wastewater. The first stage is the reduction of solids through the use of deep anaerobic ponds, which are tailored to dilute saline wastewater. Non-settled colloidal and supracolloidal solids can subsequently be removed through trapping in a sand bed filter and biological transformation to dissolved inorganic nitrogen or N 2 . The resulting dissolved nutrients can be treated in a 3-stage algal treatment system by assimilation into harvestable biomass, and finally constructed wetlands polish wastewater through further trapping of particulates, and transformation of dissolved nitrogen. Given that upgrading wastewater treatment facilities is costly, we highlight options that have the potential to offset nutrient treatment costs, such as the use of algal biomass for food or energy products, and the recycling of nitrogen and phosphorus via pyrolysis creating products such as biochar and biofuel.

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Serial particle size fractionation and characterisation of an aquacultural effluent

Cited by 76 publications

References 9 publications

Serial Particle Size Fractionation and Water Quality in a Recirculating Aquaculture System for Eel

Serial Particle Size Fractionation and Water Quality in a Recirculating Aquaculture System for Eel

Sustainable Treatment of Aquaculture Effluents—What Can We Learn from the Past for the Future?

Wastewater treatment for land-based aquaculture: improvements and value-adding alternatives in model systems from Australia

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