scholarly journals Total Ammonia Nitrogen (TAN) Removal Efficiency in Recirculating Aquaculture Systems by using Sponge-Bed Trickling Filter

2019 ◽  
Vol 14 (1) ◽  
pp. 8490-8495
Author(s):  
Yenny Silvia ◽  
Setyo Sarwanto Moersidik
Keyword(s):  
Removal Efficiency ◽  
Ammonia Nitrogen ◽  
Trickling Filter ◽  
Total Ammonia Nitrogen ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Total Ammonia

scholarly journals Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive Litopenaeus vannamei Aquaculture

2021 ◽  
Vol 11 (20) ◽  
pp. 9478
Author(s):  
Yishuai Du ◽  
Jianping Xu ◽  
Li Zhou ◽  
Fudi Chen ◽  
Tianlong Qiu ◽  
...  
Keyword(s):  
Litopenaeus Vannamei ◽  
Sea Cucumber ◽  
Stocking Density ◽  
Ammonia Nitrogen ◽  
Average Weight ◽  
Recirculating Aquaculture ◽  
Nitrite Nitrogen ◽  
Innovative Methodology ◽  
Recirculating Aquaculture Systems ◽  
Total Ammonia

Designing good recirculating aquaculture systems (RASs) is challenging in shrimp aquaculture. In this study, two sets of RASs were constructed using sea cucumber nursery tanks for rearing Litopenaeus vannamei. Recirculating aquaculture was supported by key technologies such as sewage collection and aeration systems adapted to the rectangular tanks and technologies for the removal of sewage, shrimp shells, and dead individuals. Six-hundred and eighty-five thousand juveniles were selected for rearing in the newly constructed RASs, where the average stocking density was 1013 shrimp/m3. During the recirculating aquaculture period of 53 days, the water temperature of the tanks was 24–31 °C, the salinity was 25–32‰, the pH was 6.4–8.2, the DO was ≥ 4.9 mg/L, the concentration of total ammonia nitrogen (TAN) was maintained between 0.17 and 4.9 mg/L, the concentration of nitrite nitrogen (NO2-N) was between 0.12 and 4.7 mg/L, and the total number of Vibrio bacteria remained between 330 and 9700 cfu/mL. At the end of the experiment, the final average weight of individual shrimp was 13.43 g, and the average yield reached 12.92 kg/m3. The great improvement in growth performance marks a breakthrough in RAS technology of shrimp, and it supports the use of an innovative methodology for the retrofitting and utilization of idle sea cucumber nursery tanks.

Nitrification in brackish water recirculating aquaculture system integrated with activated packed bed bioreactor

2010 ◽  
Vol 61 (3) ◽  
pp. 797-805 ◽  
Author(s):  
V. J. Rejish Kumar ◽  
Valsamma Joseph ◽  
Rosamma Philip ◽  
I. S. Bright Singh
Keyword(s):  
Packed Bed ◽  
Ammonia Nitrogen ◽  
Recirculating Aquaculture System ◽  
Removal Rates ◽  
Packed Bed Bioreactor ◽  
Term Operation ◽  
Total Ammonia Nitrogen ◽  
Recirculating Aquaculture ◽  
Aquaculture System ◽  
Total Ammonia

Recirculation aquaculture systems (RAS) depend on nitrifying biofilters for the maintenance of water quality, increased biosecurity and environmental sustainability. To satisfy these requirements a packed bed bioreactor (PBBR) activated with indigenous nitrifying bacterial consortia has been developed and commercialized for operation under different salinities for instant nitrification in shrimp and prawn hatchery systems. In the present study the nitrification efficiency of the bioreactor was tested in a laboratory level recirculating aquaculture system for the rearing of Penaeus monodon for a period of two months under higher feeding rates and no water exchange. Rapid setting up of nitrification was observed during the operation, as the volumetric total ammonia nitrogen removal rates (VTR) increased with total ammonia nitrogen (TAN) production in the system. The average Volumetric TAN Removal Rates (VTR) at the feeding rate of 160 g/day from 54–60th days of culture was 0.1533 ± 0.0045 kg TAN/m3/day. The regression between VTR and TAN explained 86% variability in VTR (P < 0.001). The laboratory level RAS demonstrated here showed high performance both in terms of shrimp biomass yield and nitrification and environmental quality maintenance. Fluorescent in-situ Hybridization analysis of the reactor biofilm ensured the presence of autotrophic nitrifier groups such as Nitrosococcus mobilis lineage, Nitrobacter spp and phylum Nitrospira, the constituent members present in the original consortia used for activating the reactors. This showed the stability of the consortia on long term operation.

scholarly journals Study of Biofilter Planted with Basil for Removal of Ammonia in Aquaponic Water

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Bharat Nandkumar Mulay ◽  
Konda Rajasekhar Reddy
Keyword(s):  
Water Quality ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Coarse Aggregates ◽  
Total Ammonia Nitrogen ◽  
Coconut Husk ◽  
Significant Difference ◽  
Total Ammonia ◽  
Water Recirculation ◽  
Aquaculture Water

Abstract This experimental investigation of a laboratory scale aquaponic system included testing of a biofilter with basil plant as the biofilter part on aquaculture water quality. Irridescent shark was selected as aquaculture species. The biofilter consist of natural biomaterials such as coconut husk, coco peat, and coarse aggregates. The experiment was carried out for three short water recirculation durations of 2, 3, and 4 h/day. The influent and effluent ammonia NH3, total ammonia nitrogen (TAN), nitrites NO2 and nitrates NO3 levels were measured and analysed. The results showed that the biofilter effectively removed NH3 (65 - 71 %), TAN (34 - 58 %), and NO2 (60 - 67 %) from the aquaculture water. The dissolved oxygen (DO) levels were maintained between 3 - 7.0 mg/l during all the recirculation durations. The significance of water recirculation period was assessed by calculating the differences between the means of water quality parameters with a statistical test named one-way analysis of variance (ANNOVA) with significant level P taken as 5 %, i.e., P ≤ 0.5. The effluent mean NH3 levels 0.030 mg/l, 0.033 mg/l, and 0.022 mg/l exhibited significant difference at 4 h/d periods while effluent TAN levels 0.81, 0.77, and 0.77 showed no difference with varying periods.

Total ammonia nitrogen (TAN) removal performance of a recirculating down-hanging sponge (DHS) reactor operated at 10 to 20 °C with activated carbon

Aquaculture ◽  
2020 ◽  
Vol 520 ◽  
pp. 734963 ◽  
Author(s):  
Mamoru Oshiki ◽  
Takashi Aizuka ◽  
Hirotoshi Netsu ◽  
Satoshi Oomori ◽  
Akihiro Nagano ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Ammonia Nitrogen ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

Micro-PAD card for measuring total ammonia nitrogen in saliva

2020 ◽  
Vol 412 (13) ◽  
pp. 3167-3176 ◽  
Author(s):  
Yanisa Thepchuay ◽  
Raquel B. R. Mesquita ◽  
Duangjai Nacapricha ◽  
António O. S. S. Rangel
Keyword(s):  
Ammonia Nitrogen ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

scholarly journals Integration between bioflocs and periphyton in Nile tilapia culture tanks

2017 ◽  
Vol 39 (5) ◽  
pp. 601
Author(s):  
Davi De Holanda Cavalcante ◽  
Francisco Roberto Dos Santos Lima ◽  
Vanessa Tomaz Rebouças ◽  
Marcelo Vinícius do Carmo e Sá
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Specific Growth ◽  
Ammonia Nitrogen ◽  
Final Body Weight ◽  
Fish Yield ◽  
Beneficial Effects ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia ◽  
Reactive Phosphorus

The present study aimed to assess the possible beneficial effects of the integration between bioflocs and periphyton to the Nile tilapia’s water quality and growth performance. There were four treatments with five replicates each: (1) Control: green waters, (2) Periphyton: substrate-based system, (3) BFT: bioflocs technology for aquaculture, and (4) Biophyton: integration between bioflocs and periphyton. Fish (1.63 ± 0.07 g) were reared for 10 weeks in twenty 250 L outdoor tanks. Two polyethylene boards were vertically set out in the Periphyton and Biophyton tanks as underwater substrates. The C: N ratios of water in the BFT and Biophyton tanks were adjusted to 15:1 with dry molasses applications. The concentrations of total ammonia nitrogen were higher in the Control and Periphyton tanks than in the BFT and Biophyton ones. On the other hand, the concentrations of reactive phosphorus were higher in the BFT and Biophyton tanks than in the Control and Periphyton ones. The fish final body weight, specific growth rate and fish yield have not differed between the tanks. The integration between bioflocs and periphyton has not brought clear benefits to tilapia culture on water quality and growth performance.  

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