Combination of a bead filter and rotating biological contactor in a recirculating fish culture system

被引：26

作者：

delosReyes, AA

Lawson, TB

机构：

[1] Dept. of Biol. and Agric. Eng., Louisiana Agric. Experiment Station, Louisiana State Univ. Agric. Center, Baton Rouge

来源：

AQUACULTURAL ENGINEERING | 1996年 / 15卷 / 01期

关键词：

D O I：

10.1016/0144-8609(95)00005-Y

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The performance of the combination of a floating bead filter and an RBC employing I-inch diameter Norpac(R) tube media was evaluated in an intensive pilot scale recirculating system stocked with tilapia. The combination maintained favorable water quality, attaining practically complete TAN and NO2-N removal. The average overall removal across the FBF-RBC combination was 60.6 g TAN/day and 59.6 g NO2-N/day, which was 30.7 and 51.7% of the influent loaning, respectively. At a feeding level of 2 kg/day with backwashing every 2 days, the bend filter functioned primarily as a solids capture device, while the RBC performed the bulk of the nitrification. Areal removal for the bend filter was 56.2 mg TAN/m(2)-day at 5% efficiency and 13.1 mg NO2-N/m(2)-day at 1.1% efficiency, while for the RBC it was 257 mg TAN/m(2)-day at 52% efficiency, and 282 mg NO2-N/m(2)-day at 51% efficiency.

引用

页码：27 / 39

页数：13