Results 171 to 180 of about 3,383 (217)
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Aquaculture International, 2021
This research aimed to elucidate the effect of Chlorella sp. addition on biofloc quality and growth of Macrobrachium rosenbergii juveniles in biofloc systems. Four treatments of freshwater prawn nursery culture systems were tested, i.e., control system with clear water system at a regular water exchange at about 50% every 2 weeks; control system with ...
Julie Ekasari +6 more
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This research aimed to elucidate the effect of Chlorella sp. addition on biofloc quality and growth of Macrobrachium rosenbergii juveniles in biofloc systems. Four treatments of freshwater prawn nursery culture systems were tested, i.e., control system with clear water system at a regular water exchange at about 50% every 2 weeks; control system with ...
Julie Ekasari +6 more
openaire +1 more source
Aquaculture, 2020
Abstract The current study evaluated the effect of a carbohydrate addition strategy set at two biofloc levels on the establishment of nitrification in new biofloc technology aquaculture systems. Three carbohydrate addition strategies were chosen as follows: one-time glucose addition with 20:1 of the input C/N ratio, glucose additions at a C/N ratio ...
Guozhi Luo, Godwin Abakari
exaly +2 more sources
Abstract The current study evaluated the effect of a carbohydrate addition strategy set at two biofloc levels on the establishment of nitrification in new biofloc technology aquaculture systems. Three carbohydrate addition strategies were chosen as follows: one-time glucose addition with 20:1 of the input C/N ratio, glucose additions at a C/N ratio ...
Guozhi Luo, Godwin Abakari
exaly +2 more sources
Aquaculture International, 2021
This study investigated the effects of biochar application on the bacterial community structure in bioflocs and intestines of Oreochromis niloticus cultured in a biofloc system and further evaluated its effects on some intestinal enzyme activities. Three carbon treatments, the control G, sole application of glucose; B, sole application of biochar; and ...
Godwin Abakari +4 more
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This study investigated the effects of biochar application on the bacterial community structure in bioflocs and intestines of Oreochromis niloticus cultured in a biofloc system and further evaluated its effects on some intestinal enzyme activities. Three carbon treatments, the control G, sole application of glucose; B, sole application of biochar; and ...
Godwin Abakari +4 more
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Kinetics of UV inactivation of wastewater bioflocs
Water Research, 2012Ultraviolet disinfection is a physical method of disinfecting secondary treated wastewaters. Bioflocs formed during secondary treatment harbor and protect microbes from exposure to ultraviolet (UV) light, and significantly decrease the efficiency of disinfection at high UV doses causing the tailing phenomena. However, the exact mechanism of tailing and
Y, Azimi, D G, Allen, R R, Farnood
openaire +2 more sources
2023
Egypt is on the edge of sinking into an abyss of issues that will slow down the country's rebirth due to its current array of unresolved issues. One major issue is the lack of technological uses in agriculture. To address this challenge, agricultural and aquacultural feedback systems can be implemented.
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Egypt is on the edge of sinking into an abyss of issues that will slow down the country's rebirth due to its current array of unresolved issues. One major issue is the lack of technological uses in agriculture. To address this challenge, agricultural and aquacultural feedback systems can be implemented.
openaire +1 more source
Does the biofloc size matter to the nitrification process in Biofloc Technology (BFT) systems?
Aquaculture, 2019Abstract In addition to environmental factors, particle size can interfere with the nitrification process because smaller flocs are less efficient in terms of ammonia and nitrite oxidation. The objective of the present study was to evaluate, in three experiments, the effect of the biofloc size on the nitrification process during the production of the
Janaína Souza +3 more
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Aquaculture, 2021
Abstract The present study evaluated the use of a biofloc system (BFT) for the larviculture of goldfish (Carassius auratus). Two experiments were carried out, of which the first evaluated two culture systems (BFT and clear water) and three densities of Artemia nauplii (100, 200 and 300 nauplii larvae−1).
Kayane Pereira Besen +7 more
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Abstract The present study evaluated the use of a biofloc system (BFT) for the larviculture of goldfish (Carassius auratus). Two experiments were carried out, of which the first evaluated two culture systems (BFT and clear water) and three densities of Artemia nauplii (100, 200 and 300 nauplii larvae−1).
Kayane Pereira Besen +7 more
openaire +1 more source
2015
Over the last decade, synthetic flocculants such as polyacrylamide, polyethylene amine, and aluminum sulfate have been widely used as flocculating agents in wastewater treatment process. Despite their effective flocculating activity, there are problems regarding their safety status in terms of high potential to cause carcinogenic and neurotoxic effects
Nor Azman Kasan +5 more
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Over the last decade, synthetic flocculants such as polyacrylamide, polyethylene amine, and aluminum sulfate have been widely used as flocculating agents in wastewater treatment process. Despite their effective flocculating activity, there are problems regarding their safety status in terms of high potential to cause carcinogenic and neurotoxic effects
Nor Azman Kasan +5 more
openaire +1 more source
Nitrate accumulation in biofloc aquaculture systems
Aquaculture, 2020Abstract Minimizing ammonium is one of the most important concerns in the practice of aquaculture. Chemoautotrophic bacterial nitrification (CBN) and heterotrophic bacterial assimilation (HBA) are the two main ammonium pathways in aquaculture water under light-limited conditions. CBN oxidizes ammonia–nitrogen (NH4+-N) to nitrite–nitrogen (NO2−-N) and
Guozhi Luo, Jinxiang Xu, Haoyan Meng
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Aquaculture International, 2019
A 25-week experiment was conducted to investigate the changes in the microeukaryote community (MEC) and nutritional composition of the biofloc during Nile tilapia culture in water-reusing biofloc systems. The study evaluated two treatments: tilapia culture in biofloc (TB) and tilapia culture in biofloc with reuse water (RWTB).
Alfredo Gallardo-Collí +3 more
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A 25-week experiment was conducted to investigate the changes in the microeukaryote community (MEC) and nutritional composition of the biofloc during Nile tilapia culture in water-reusing biofloc systems. The study evaluated two treatments: tilapia culture in biofloc (TB) and tilapia culture in biofloc with reuse water (RWTB).
Alfredo Gallardo-Collí +3 more
openaire +1 more source