Development and performance evaluation of sludge remover for intensive aquaculture

Hossain, Mohammad Arif; Sarker, Ashoke Kumar; Amin, Md. Nurul; Miah, Md. Sumon

doi:10.1016/j.aquaeng.2016.06.001

Cited by 20 publications

(7 citation statements)

References 9 publications

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“…Fish production results in the generation and accumulation of fish pond sediment in aquaculture systems over time. An excessive sediment load may lead to a reduction in the depth of ponds and in the living space available for fish, it may also lead to a depletion in dissolved oxygen and in the release of toxic gases such as H 2 S and NO 2 (Mizanur et al, 2004;Rahman and Yakupitiyage, 2006;Bosma and Verdegem, 2011;Kibria and Haque, 2018).This in turn may impair the efficiency of fish farming, and thus lower economic performance thereby discouraging fish farmers from engaging with the industry (Mizanur et al, 2004;Hossain et al, 2016). In practice, the removal of fish pond sediment involves land spreading for the most part, and as such may contribute to the degradation of the environment.…”

Section: Introductionmentioning

confidence: 99%

Fish pond sediment from aquaculture production – current practices and the potential for nutrient recovery**: a Review

Dróżdż¹,

Malińska²,

Mazurkiewicz³

et al. 2020

Int. Agrophys.

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The recent increase in fish production has resulted in the accumulation of fish pond sediment. This sediment accumulates over time and can lead to a reduction in the depth of ponds and in the living space available for fish, it may also lead to a depletion in dissolved oxygen. Therefore, the removal of sediment from fresh water ponds is crucial for pond maintenance, and thus economical fish production. Fish pond sediment is rich in nutrients and organic matter, and therefore it may have potential as a fertilizer in crop production, nursery pot culture, etc. However, it contains compounds that undergo rapid degradation producing unpleasant odours and posing a threat to the environment, therefore it needs to be managed and handled efficiently in an environmentally sound and sustainable manner. The overall goal of this study was to analyse the current state and management practices of fish pond sediment generated in the existing aquaculture systems, with special reference to organic aquaculture, and the potential for the recovery of nutrients through bioconversion processes to organic fertilizers. K e y w o r d s: fish pond sediment, intensive aquaculture, nutrient recovery, agriculture

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Section: Introductionmentioning

confidence: 99%

Fish pond sediment from aquaculture production – current practices and the potential for nutrient recovery**: a Review

Dróżdż¹,

Malińska²,

Mazurkiewicz³

et al. 2020

Int. Agrophys.

View full text Add to dashboard Cite

show abstract

“…Usually, water temperature is lower in culture ponds during the early morning that gradually increases at noon throughout the afternoon. 21 In the present study, water temperature was measured in the morning period of early summer. It may be expected that temperature would rise to an addition of 3 to 5°C during the later parts of the day.…”

Section: Discussionmentioning

confidence: 99%

Sources of off-flavor in pangasius catfish (Pangasianodon hypophthalmus) ponds

Reza¹

2021

JAMB

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With the intensification of aquaculture system, off-flavor in cultured pangasius catfish (Pangasianodon hypophthalmus) has become a problem in Bangladesh, resulting in poor acceptability and reduced market price. Since water quality parameters and sediment have greater implications on fish quality, studies were undertaken to identify potential off-flavor agents by investigating water temperature, dissolved oxygen (DO) pH, phytoplankton diversity and sediment organic carbon in 3 randomly selected ponds of 3upazilain Mymensingh district viz., Sadar, Trishal and Muktagachha. Water temperature and DO was found to be significantly different in ponds of Trishalupazila along with significantly high sediment organic carbon (p<0.05). Correspondingly, the Algal Genus Pollution Index (AGPI) estimated to study the water quality revealed that ponds in this upazila has the highest organic nutrient level (25.33±3.21). These values, along with strong positive correlation of cyanobacteria abundance and water temperature, sediment organic carbonindicate higher risk of off-flavor production in pond water. Adoption of proper management strategies need to taken immediately so that off-flavor producing organisms can be minimized. This will ensure higher acceptability of pangasius catfish produced in this region and safeguard livelihoods of the fish producers.

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“…Brackish water shrimp farming is an important eco-2 nomic industry of Vietnam with current export in 3 amount of USD 3.85 billion and expected export in 4 2025 is USD 10 billion. 5 To increase productivity, high tech intensive and sup- 6 per intensive shrimp farming methods are imple- 7 mented to production practice with increasing pro-8 portion. 9 The area of high-tech shrimp farming is planned to be 10 100,000 ha in 2020.…”

Section: Introductionmentioning

confidence: 99%

Experimental operation and performance evaluation of waste remover in aquaculture ponds

Truyen

Long

2020

Sci. Tech. Dev. J.- Eng. Tech.

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The development of new technologies in automation to increase labor productivity has been increasingly enhanced in recent decades. The problem of cleaning water in shrimp ponds greatly affects the quality as well as shrimp production. Environmental pollution of shrimp farming is a matter of concern because the current waste treatment solutions are not yet thorough. A waste remover of shrimp waste combined with pond bottom siphon method has been researched and developed to increase the ability to thoroughly handle waste generated in the culture environment. This device helps to automate the manual cleaning of the pond bottom by farmers. The device performs operations to clean waste, suck, filter and remove waste from the culture environment. This device is self-propelled or manually controlled and operates in all weather conditions. This article introduces the process of testing and evaluating the efficiency of waste extraction equipment in shrimp ponds. The device was tested at a super intensive shrimp farm and evaluated for operational efficiency. The experimental model consists of a shrimp pond operating a waste suction device, a control pond, an automatic monitoring system of water quality parameters (DO, H 2 S, NH 3 , pH and temperature). Experimental ponds operating waste disposal equipment, control ponds are manually cleaned, other farming conditions of the two ponds are similar. The impacts of waste on shrimp culture environment are determined through analyzing the results of measuring water quality criteria in the pond, thereby assessing the efficiency of waste removal of the equipment. The measurement results show that water quality parameters reach a value within the threshold if operating a waste suction device once per day. The benefits of waste remover operate are to help save the cost of labor to clean the pond bottom, protect workers' health.

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Development and performance evaluation of sludge remover for intensive aquaculture

Cited by 20 publications

References 9 publications

Fish pond sediment from aquaculture production – current practices and the potential for nutrient recovery**: a Review

Fish pond sediment from aquaculture production – current practices and the potential for nutrient recovery**: a Review

Sources of off-flavor in pangasius catfish (Pangasianodon hypophthalmus) ponds

Experimental operation and performance evaluation of waste remover in aquaculture ponds

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