A bicarbonate titration method for lime requirement to neutralize exchangeable acidity of pond bottom soils

Han, Yangxue; Boyd, Claude E.; Viriyatum, Rawee

doi:10.1016/j.aquaculture.2014.08.031

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…All determinations of water quality followed the guidelines of American Public Health Association (APHA, 1999). The soil pH and organic carbon concentration were determined at the beginning, middle and end of the experiment according to Han, Boyd, and Viriyatum (2014). In the 7 th experimental week, diel monitoring was performed to analyze the concentrations of TAN, NH 3 DO 2 every two hours, plus the recordings of water pH and temperature of all experimental tanks.…”

Section: Methodsmentioning

confidence: 99%

<b>Interaction between afternoon aeration and tilapia stocking density

Lima

Cavalcante

Rebouças

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. The present study aimed at determining the effects of the interaction between afternoon aeration and stocking density of Nile tilapia on variables of water and soil quality, growth performance and effluent quality. The experiment was a 3 x 2 factorial randomized block design, with three stocking densities (8, 12 and 16 fish per tank or 43.5, 65.3, and 87.0 g m -3 ) under two mechanical aeration regimes, absence (control; three replicates) and afternoon aeration (four replicates). The afternoon aeration was carried out from 12.00 a.m. up to 18.00 p.m. from the 3 rd week until the end of the experiment. Except for the 16-fish tanks, the lowest concentrations of total ammonia nitrogen were found in the tanks with higher density of fish provided with afternoon aeration. Nitrite concentrations were lower in the 8-fish aerated tanks. In intensive system, the afternoon aeration of the fish culture water is an efficient management of water quality to remove gaseous ammonia and nitrite from water, but it is not appropriate to remove hydrogen sulfide from water.Keywords: fish farming, total ammonia nitrogen, unionized ammonia, nitrite.Interação entre aeração vespertina e densidade de estocagem na criação de juvenis de tilápia RESUMO. O presente trabalho teve por objetivo determinar os efeitos da interação entre a aeração vespertina da água e a densidade de estocagem de juvenis de tilápia do Nilo sobre variáveis de qualidade de água, solo, desempenho zootécnico e qualidade de efluentes. O delineamento experimental adotado foi em blocos ao acaso, em arranjo fatorial 3 x 2. Havia três densidades de estocagem (8, 12 e 16 peixes por tanque ou 43,5; 65,3 e 87,0 g m -3, respectivamente), em dois regimes de aeração mecânica da água, ausência (controle; três repetições) e aeração vespertina (quatro repetições). A aeração vespertina da água ocorreu das 12 às 18 h, da terceira até a última semana de criação. Exceto pelos tanques com 16 peixes, menores concentrações de nitrogênio amoniacal total foram observadas nos tanques de maior densidade de estocagem providos de aeração vespertina. As concentrações de nitrito da água foram menores nos tanques com 8 peixes e aeração vespertina. A aeração vespertina da água de cultivo de peixes é um eficiente manejo de qualidade de água para remoção de amônia gasosa e nitrito da água em sistemas intensivos, não sendo indicado, entretanto, para remoção de gás sulfídrico da água.Palavras-chave: piscicultura, nitrogênio amoniacal total, amônia não-ionizada, nitrito.

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Section: Methodsmentioning

confidence: 99%

<b>Interaction between afternoon aeration and tilapia stocking density

Lima

Cavalcante

Rebouças

et al. 2016

Acta Sci. Anim. Sci.

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“…Liming rates often are based on experience or “trial and error,” but methods based on bottom soil analyses allow determination of the amount of liming material necessary in a particular pond (Pillai and Boyd ; Han et al ). Difficulty often is encountered in attempting to increase alkalinity and hardness above 50–60 mg/L by liming because of the low solubility of limestone.…”

Section: Limingmentioning

confidence: 99%

Alkalinity and Hardness: Critical but Elusive Concepts in Aquaculture

Boyd

Tucker²,

Somridhivej³

2016

J World Aquaculture Soc

Self Cite

208

143

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Total alkalinity and total hardness are familiar variables in aquatic animal production. Aquaculturists—both scientists and practitioners alike—have some understanding of the two variables and of methods for adjusting their concentrations. The chemistry and the biological effects of alkalinity and hardness, however, are more complex than generally realized or depicted in the aquaculture literature. Moreover, the discussions of alkalinity and hardness—alkalinity in particular—found in water chemistry texts are presented in a rigorous manner and without explanation of how the two variables relate to aquaculture. This review provides a thorough but less rigorous discussion of alkalinity and hardness specifically oriented toward aquaculture. Alkalinity and hardness are defined, their sources identified, and analytical methods explained. This is followed by a discussion of the roles of the two variables in aquaculture, including their relationships with carbon dioxide, pH, atmospheric pollution, ammonia, and other inorganic nitrogen compounds, phytoplankton communities, trace metals, animal physiology, and clay turbidity. Liming and other practices to manage alkalinity and hardness are explained. Changes in alkalinity and hardness concentrations that occur over time in aquaculture systems are discussed. Emphasis is placed on interactions among alkalinity, hardness, water quality, and aquacultural production.

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“…Additionally, the tailing titration method (Barouchas et al 2013), potassium-bicarbonate method (Han et al 2014), and buffer curve method (Qi et al 1996) lime requirement test experiments were conducted to determine the lime requirements necessary to reach different pH targets. All of the experiments were conducted an average of three times.…”

Section: Methodsmentioning

confidence: 99%

“…For the health of experimenters, the use of an SMP buffer method is restricted. Han et al (2014) proposed the use of the potassium-bicarbonate method to predict the lime demand of the pond. This method is simple in operation and has shown high accuracy in the experimental results.…”

mentioning

confidence: 99%

Experimental and Model Predictive Investigation into the Relationship of pH Alternation with Addition of Lime in Acid Tin Tailing Treatments

Yin

Zhao

et al. 2021

Bull Environ Contam Toxicol

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Lime is one of the commonly used amendments for acidic soils. The reasonable application of lime can effectively improve the current status of acid tailings and reduce harm to the environment. In this study, we analyzed the pH alternation of acid tin tailing as a function of lime dose based on three methods-single titration method, K-bicarbonate titration method, and buffer curve method-to predict the accurate lime requirement (LR) in acid tin tailing treatments. Of these prediction methods, the buffer curve method was best suited for the prediction of lime dose, and the prediction values agreed with the experimental data by factors of 1.0-1.4. Thus, we determined that the buffer curve method was more suitable for predicting the lime requirement of acid tailings. This study of acid tailings lime requirement provides scientific research for the subsequent modification of tailings.

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A bicarbonate titration method for lime requirement to neutralize exchangeable acidity of pond bottom soils

Cited by 7 publications

References 14 publications

<b>Interaction between afternoon aeration and tilapia stocking density

<b>Interaction between afternoon aeration and tilapia stocking density

Alkalinity and Hardness: Critical but Elusive Concepts in Aquaculture

Experimental and Model Predictive Investigation into the Relationship of pH Alternation with Addition of Lime in Acid Tin Tailing Treatments

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