Hasan Hüseyin ATAR, İlknur MERİÇ, Servet ATAYETER, Önder ÖREN

Determination of mesh breaking strength of polyamide fishing nets under the exposure of different heavy metal concentrations and temperature

Çevre kirliliğine yol açan maddeler ve diğer dış faktörler, balık ağlarının dayanıklılığını ve kullanma ömrünü etkilemektedir. Bu çalışmada, ağır metaller gibi bazı kirleticilerin ve sıcaklığın, düğümsüz poliamid (PA) balık ağlarında ağ gözü kopma kuvvetine etkileri belirlenmiştir. PA ağ örnekleri,14 gün boyunca 99 °C’de metal ve cam konteynırlar içinde Cd (Kadmiyum), Cu (Bakır), Ni (Nikel), Hg (Civa), Zn (Çinko), Cr (Krom) ve Pb (Kurşun) içeren ağır metal solüsyonlarına maruz bırakılmıştır. Ayrıca, örnekler 30 dakika, 1 ve 2 saat süresince, 130 °C ve 175 °C’de metal ve cam yüzeyler ile havada asılı olarak tutulmuştur. Metal konteynır içinde ağır metale maruz bırakılan örneklerde ağ gözü kopma kuvveti değerleri sırasıyla Ni>Cd >Pb > Zn> Hg> Cu> Cr olarak bulunurken, cam konteynır içindeki örnek değerlerinin sırası Cr> Hg> Cu> Pb> Zn>Cd> Ni olarak tespit edilmiştir. Test koşulları ve sıcaklık ile ilişkili olarak, metal ve cam yüzeyler ile havada asılı tutulan gruplarda tüm zaman periyotlarında 130 °C’e maruz bırakılmış örneklerin kopma kuvvetinin 175 °C’deki örneklere göre yüksek (P

Farklı ağır metal konsantrasyonlarına ve sıcaklığa maruz bırakılan poliamid balık ağlarında ağ gözü kopma kuvvetinin belirlenmesi

Pollutants and other external factors effect the strength and service life of fishing nets. The effects of some pollutants such as heavy metals and temperature on the mesh breaking strength of knotless polyamide (PA) fishing nets were determined in this study. The PA net samples were subjected to heavy metal solutions containing Cd (Cadmium), Cu (Copper), Ni (Nickel), Hg (Mercury), Zn (Zinc), Cr (Chromium) and Pb (Lead) for 14 days at 99 °C in metal and glass containers. Also, the samples were hold on metal and glass surfaces and suspended in the air at 130 °C and 175 °C for the periods of 30 minute, 1 and 2 hours. The order of breaking strenght values of heavy metal treated samples in metal containers was found Ni> Cd>Pb> Zn> Hg>Cu> Cr, respectively, whereas the order of samples was Cr>Hg>Cu>Pb>Zn> Cd> Ni for glass containers. Regarding to the test conditions and the temperature, the breaking strenght values of samples treated with 130 °C were found significantly high (P

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