Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system
An outdoor tank scale shrimp cultivation system was developed with integration of green macroalgae species, Ulva lactuca. Intensive shrimp farming produces large amount of waste nutrients, due to excess uneaten feed and excretion. Prior harvesting, shrimp effluent discharged without proper treatment...
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my.utm.632562017-08-14T03:18:50Z http://eprints.utm.my/id/eprint/63256/ Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system Baloo, Lavania Azman, Shamila Md. Said, Mohd. Ismid Muhammad Yuzir, Muhamad Ali TD Environmental technology. Sanitary engineering An outdoor tank scale shrimp cultivation system was developed with integration of green macroalgae species, Ulva lactuca. Intensive shrimp farming produces large amount of waste nutrients, due to excess uneaten feed and excretion. Prior harvesting, shrimp effluent discharged without proper treatment and alleviates water quality of receiving water bodies. Coastal water degradation consequently causes negative environmental impact. This integrated system with U. lactuca, greatly reduced the nutrient loads and incorporated into its biomass. Phosphate removal was 90%, followed by ammonium and nitrate with removal efficiencies of 70% and 42%, respectively. The mean specific growth rate of U. lactuca was 2.25 ± 0.9 % day-1 and shrimp was 0.76 ± 0.09 % day-1. Shrimp growth rate in control tank was significantly lower compared to the treatment tank (P<0.001) and survival rate declined throughout the experimental period. Integration of U. lactuca significantly enhanced the dissolved oxygen with mean value of 5.49±0.06 mg/L and creates a stable pH values compared to control treatment tank. Thus, U. lactuca is a prominent biofilter with rapid growth rate and greatly reduces the overall environmental impact of aquaculture water degradation and stabilize the culture environment and this study highly recommended utilization of U. lactuca as a biofilter component in an integrated multitrophic aquaculture treatment system. 2015 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/63256/1/MuhamadAliMuhammad2017_UlvaLactucaforNutrientsBiofiltrationinaRecirculatingShrimpEffluentTreatmentSystem.pdf Baloo, Lavania and Azman, Shamila and Md. Said, Mohd. Ismid and Muhammad Yuzir, Muhamad Ali (2015) Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system. In: The 2nd Iwa Malaysia Young Water Professionals Conference (YWP15), 17-20 Mac, 2015, Kuala Lumpur, Malaysia. |
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TD Environmental technology. Sanitary engineering Baloo, Lavania Azman, Shamila Md. Said, Mohd. Ismid Muhammad Yuzir, Muhamad Ali Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
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An outdoor tank scale shrimp cultivation system was developed with integration of green macroalgae species, Ulva lactuca. Intensive shrimp farming produces large amount of waste nutrients, due to excess uneaten feed and excretion. Prior harvesting, shrimp effluent discharged without proper treatment and alleviates water quality of receiving water bodies. Coastal water degradation consequently causes negative environmental impact. This integrated system with U. lactuca, greatly reduced the nutrient loads and incorporated into its biomass. Phosphate removal was 90%, followed by ammonium and nitrate with removal efficiencies of 70% and 42%, respectively. The mean specific growth rate of U. lactuca was 2.25 ± 0.9 % day-1 and shrimp was 0.76 ± 0.09 % day-1. Shrimp growth rate in control tank was significantly lower compared to the treatment tank (P<0.001) and survival rate declined throughout the experimental period. Integration of U. lactuca significantly enhanced the dissolved oxygen with mean value of 5.49±0.06 mg/L and creates a stable pH values compared to control treatment tank. Thus, U. lactuca is a prominent biofilter with rapid growth rate and greatly reduces the overall environmental impact of aquaculture water degradation and stabilize the culture environment and this study highly recommended utilization of U. lactuca as a biofilter component in an integrated multitrophic aquaculture treatment system. |
format |
Conference or Workshop Item |
author |
Baloo, Lavania Azman, Shamila Md. Said, Mohd. Ismid Muhammad Yuzir, Muhamad Ali |
author_facet |
Baloo, Lavania Azman, Shamila Md. Said, Mohd. Ismid Muhammad Yuzir, Muhamad Ali |
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Baloo, Lavania |
title |
Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
title_short |
Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
title_full |
Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
title_fullStr |
Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
title_full_unstemmed |
Ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
title_sort |
ulva lactuca for nutrients biofiltration in a recirculating shrimp effluent treatment system |
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2015 |
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http://eprints.utm.my/id/eprint/63256/1/MuhamadAliMuhammad2017_UlvaLactucaforNutrientsBiofiltrationinaRecirculatingShrimpEffluentTreatmentSystem.pdf http://eprints.utm.my/id/eprint/63256/ |
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