Effect of Nutrient Solution, Nitrate-Nitrogen Concentration, and pH on Nitrification Rate in Perlite Medium

Tyson, Richard V.; Simonne, Eric H.; Davis, Megan; Lamb, Elizabeth; White, J. M.; Treadwell, Danielle

doi:10.1080/15226510701375101

Cited by 41 publications

(22 citation statements)

References 10 publications

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“…Hence, the pH increased to 8.1 for OS + WS and to 8.2 for OS + SB by passing the water through the OS bio-medium, leading to good nitrification and thereby reducing the concentration of NH 3 -N. In addition, nitrification increased the concentrations of NO 3 -N to 13.2 mg/L, 13.5 mg/L, 10.7 mg/L, and 10.1 mg/L for OS + WS, OS + SB, CR + WS, and CR + SB, respectively, as shown in Table 1. This is consistent with the finding of Tyson et al (2007) that nitrification at a pH of 8.5 was better than at a pH of 6.5 as shown in the summarized comparison of Table 2. For nitrification, using the OS as a bio-medium is better than using the CR.…”

Section: Removal Of Nitrogen and Phosphoroussupporting

confidence: 94%

“…Graber and Junge (2009) found that 69% removal of TN (total nitrogen) could be achieved by using a light-expanded clay aggregate in their RAS. Tyson et al (2007) observed that nitrification by a perlite medium was better at a pH of 8.5 than at a pH of 6.5. Similarly, plant roots also uptake nitrogen (Liu et al, 2015;Zhang et al, 2014;Zhou et al, 2011) and have a good water purification function as examined by Li et al (2009) and Endut et al (2009.…”

Section: Introductionmentioning

confidence: 95%

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Water purification by oyster shell bio-medium in a recirculating aquaponic system

Yen

Chou

2016

Ecological Engineering

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Section: Removal Of Nitrogen and Phosphoroussupporting

confidence: 94%

Section: Introductionmentioning

confidence: 95%

Water purification by oyster shell bio-medium in a recirculating aquaponic system

Yen

Chou

2016

Ecological Engineering

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“…Despite the fact that wood ash caused only a moderate increase in pH in the pot soil as a whole, micro-sites containing ash particles may form so-called 'hot-spots' of higher pH. Populations of nitrifying bacteria dwelling at these sites may respond to elevated pH by enzyme production and growth [34] and, consequently, increase the PAO. After 90 days, PAO in the WA treatment was no longer higher than the control, whereas increased PAO occurred in the WAC and C treatments.…”

Section: Potential Nitrification Ratementioning

confidence: 96%

Effect of wood fly ash and compost on nitrification and denitrification in agricultural soil

Odlare

Pell

2009

Applied Energy

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“…Aquaponics is the integrated production of plants and fish in a water recirculating system via a biofilter with nitrifying bacteria (Tyson et al, 2007). Non-toxic nutrients that accumulate in recirculating aquaculture systems can be used to fertilize plant growth (Adler et al, 1996;Seawright et al, 1998), but the final amounts of dissolved anions or cations depend on a number of factors, such as fish species, system design, feed type and water source (Rakocy et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

Aquaponics: integrating fish feeding rates and ion waste production for strawberry hydroponics

Villarroel

Alvariño

Durán

2011

Span. j. agric. res.

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Aquaponics is the science of integrating intensive fish aquaculture with plant production in recirculating water systems. Although ion waste production by f ish cannot satisfy all plant requirements, less is known about the relationship between total feed provided for f ish and the production of milliequivalents (mEq) of different macronutrients for plants, especially for nutrient flow hydroponics used for strawberry production in Spain. That knowledge is essential to consider the amount of macronutrients available in aquaculture systems so that farmers can estimate how much nutrient needs to be supplemented in the waste water from fish, to produce viable plant growth. In the present experiment, tilapia (Oreochromis niloticus L.) were grown in a small-scale recirculating system at two different densities while growth and feed consumption were noted every week for five weeks. At the same time points, water samples were taken to measure pH, EC 25 , suggesting that it would be rather easy to maintain small populations of fish to reduce the cost of hydroponic solution supplementation for strawberries.Additional key words: aquaculture; nutrients; recirculating system; tilapia; water quality. ResumenAquaponica: integrando la tasa de alimentación de peces y la producción de iones residuales para la hidroponía de fresas La aquaponía es la ciencia de integrar la acuicultura intensiva con la producción de plantas en sistemas con agua en recirculación. A pesar de que se ha encontrado que la producción de iones residuales de los peces no llega a satisfacer todos lo requisitos de las plantas, se sabe menos sobre la relación entre el pienso total dispensado para los peces y la producción en milliequivalentes (mEq) de los diferentes macronutrientes para plantas, especialmente para hidroponía recirculante usada para la producción de fresas en España. Es esencial tener este conocimiento para calcular la cantidad de macronutrients disponibles en sistemas de acuicultura para que los agricultores puedan estimar la cantidad de nutrientes que hay añadir al agua residual de los peces, para un crecimiento viable de plantas. En este experimento, se alimentó a tilapia (Oreochromis niloticus L.) en un sistema de recirculación a pequeña escala a dos densidades diferentes, controlando el crecimiento de los peces y el pienso consumido una vez cada semana durante cinco semanas. A la vez, se tomó muestras de agua para medir el pH, CE 25 2-. La cantidad total de pienso requerido por mEq varió entre 1 y 13 kg, lo cual sugiere que sería relativamente sencillo mantener poblaciones pequeñas de peces para reducir el coste de la solución fertilizante para las fresas.

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Effect of Nutrient Solution, Nitrate-Nitrogen Concentration, and pH on Nitrification Rate in Perlite Medium

Cited by 41 publications

References 10 publications

Water purification by oyster shell bio-medium in a recirculating aquaponic system

Water purification by oyster shell bio-medium in a recirculating aquaponic system

Effect of wood fly ash and compost on nitrification and denitrification in agricultural soil

Aquaponics: integrating fish feeding rates and ion waste production for strawberry hydroponics

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