Evaluation of Ammonia (NH3) Removal Through Water Recycling in Aquaculture by Aquaponic System and Its Effect on The Growth Rate of Used Fish and Plants

Awad, Alaa M (2017) Evaluation of Ammonia (NH3) Removal Through Water Recycling in Aquaculture by Aquaponic System and Its Effect on The Growth Rate of Used Fish and Plants. Masters thesis, الجامعة الإسلامية بغزة.

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Abstract

The extraordinary growth of population in Gaza, had led to the depletion of the limited natural resources and tampering food security as a result. Since 2006, alternative techniques to produce fish such as: “aquaculture” has been adopted Palestine, to cover the shortage fish supplies in market. An effort was made to introduce a sustainable aquaponics system medium. The combination consists of soilless Eggplants (Solanum melongena) and Chilli pepper (Capsicum spp.) as growing hydroponic and Nile Tilapia (Oreochromis niloticus) fish farming “aquaculture” within a closed recirculating system. The goal of this study was to assess Nitrogen waste reduction in the aquaponics and its effects on growth rate of used fish and plants. Experiment used (40) Nile Tilapia fish in 1000 L tank, (30) Eggplants and (30) Chilies Pepper saplings. They were planted in two growing beds. Fish were nourished “ad libitum”, three times a day for five days a week. Also, the results of the Specific Growth Ratio (SGR (%)( and Feed Conversion Ratio (FCR) at the end of experiment gave better results. The mean growth of Tilapia had significantly improved during (56) days of experiment at (α≤0.05). Comparing the average initial weight (72.95±23.21 g) and average initial overall length (16.07±1.92 cm), to the final experiment results, the average final weight scored was (120.07±19.21 g), and average final total length was (19.61±2.07 cm). Moreover, the mean growth of both Eggplants and Chilies Pepper varied significantly during the experiment at (α≤0.05). The height of each Chili sapling increased by almost (3.69 cm). Whist each Eggplant sapling total height had increase by almost (5.57 cm). Dissolved Oxygen, water temperature and pH, were measured once a week during the experimental period and found within the vital ranges for aquaponics system. Nitrate “NO3 -”, Ammonia “NH3” and Nitrite “NO2 -” varied significantly in all measurements during the study period at (α≤0.05). Therefore, the study showed that the application of the aquaponic system has significant influence at Nitrogen reduction, the best percentage reduction was achieved at the beginning of the experiment by showing (25.6%), (16.3%) and (12.00%) for NH3, NO2 - and NO3 -, respectively

Item Type: Thesis (Masters)
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QE Geology
Depositing User: أ. دارين علي أحمد حمد
Date Deposited: 01 Mar 2021 11:58
Last Modified: 01 Mar 2021 11:58
URI: http://scholar.alaqsa.edu.ps/id/eprint/3887

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