藤壶壳应用于对虾养殖尾水处理的初步研究

发布时间：2018-06-21 13:17

本文选题：藤壶壳 + 对虾　；参考：《渔业现代化》2017年03期

【摘要】：为研究藤壶壳作为生物滤料应用于对虾养殖尾水处理的可行性,通过比较陶瓷环组、聚乙烯(PE)组、藤壶壳组和藤壶壳+PE组4个不同滤料组合的生物挂膜效果,初步评价藤壶壳作为生物滤料的应用价值;通过设定藤壶壳的不同填充率(滤料体积∶尾水体积),研究填充率对对虾塘养殖尾水处理效果的影响。结果显示:藤壶壳组挂膜成功时间较早,水处理效果好;藤壶壳不同填充率对水处理中悬浮物、氨氮(NH_4~+-N)、亚硝酸盐氮(NO_2~--N)的处理效果有显著影响,A、B、C、D各组悬浮物在6 h时的去除率分别达(68.7±4.3)%、(74.5±7.0)%、(80.9±4.2)%和(82.1±3.8)%,其中B、C、D组去除率显著高于A组(P0.05);4组的氨氮最终去除率都在92.1%以上,以0.1 mg/L为基准,A组氨氮降至此质量浓度以下需要时间5 d,B、C组4 d,D组3 d,降解速率为D组C组B组A组;4组的亚硝酸盐氮最终去除率都在98.0%以上,以0.1 mg/L为基准,A组的亚硝酸盐氮降至此质量浓度以下需要时间为6 d,B、C、D组需要5 d,降解速率为D组C组B组A组。研究表明:藤虎壳作为生物滤料应用于对虾养殖尾水处理,效果良好,且随着填充率的增大,处理效率增强;但考虑到经济成本和应用实际,建议藤壶壳填充率为2∶9。
[Abstract]:In order to study the feasibility of using barnacle-shell as biofiltration material in the treatment of shrimp culture tailings, the effects of biofiltration membrane of four different combinations of ceramic ring group, polyethylene (PE) group, barnacle-shell group and barnacle-shell group (PE group) were compared. The application value of barnacle shell as biofiltration media was evaluated preliminarily, and the effect of the filling rate on the treatment effect of shrimp pond culture tail water was studied by setting the different filling ratio of barnacles shell (filter volume: tail water volume). The results showed that the successful time of membrane suspension in barnacle-shell group was earlier, and the effect of water treatment was good, and different filling ratio of barnacle shell had good effect on suspended matter in water treatment. The effect of NH _ 4 ~ -N ~ -N ~ +, nitrite N ~ (2 +) -N) on the removal rate of suspended matter in group A, B, C, D reached 68.7 卤4.3% and 82.1 卤3.8% respectively at 6 h. The removal rate of ammonia nitrogen in group B was significantly higher than that in group A (P 0.05 + 4), and the final removal rate was higher than that in group A (P 0.05), and the final removal rate of ammonia nitrogen was above 92.1% in group B (P 0.05), and the removal rate of ammonia nitrogen in group B was significantly higher than that in group A (P 0.05), and the removal rate was higher than that in group A (P 0.05) at 6 h, and the removal rate of ammonia nitrogen in group A was above 92.1%. Taking 0.1 mg / L as the benchmark, it takes 5 days for group A to reduce ammonia nitrogen below the mass concentration. The degradation rate of nitrite nitrogen in group C is above 98.0% in group B, group A and group B, and the degradation rate of group D is above 98.0%, and the degradation rate of group C is above 98.0%, and the degradation rate of group C is more than 98.0%. Using 0.1 mg / L as the benchmark, it took 5 days for group D to reduce nitrite nitrogen below the mass concentration, and the degradation rate was 5 days for group D, group C, group B, group A. The results showed that the efficiency of the treatment was improved with the increase of filling ratio, but considering the economic cost and practical application, it was suggested that the filling rate of barnacle shell was 2: 9.
【作者单位】：浙江省舟山市水产研究所;
【基金】：浙江省公益技术研究农业项目(2015C32111) 海洋经济创新发展区域示范项目(浙海渔计[2015]29号) 舟山市公益类科技项目(2015C31009) 南美白对虾循环水养殖新技术研究与示范(2016C31058) 舟山市海洋经济创新发展示范工作专项资金(国海科字[2016]496号)
【分类号】：S968.22;X714

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