FIXED FILM NITRIFICATION CHARACTERISTICS IN SEA-WATER RECIRCULATION FISH CULTURE SYSTEMS

被引：63

作者：

NIJHOF, M ^{[1
]}

BOVENDEUR, J ^{[1
]}

机构：

[1] AGR UNIV WAGENINGEN,DEPT WATER POLLUT CONTROL,6700 EV WAGENINGEN,NETHERLANDS

来源：

AQUACULTURE | 1990年 / 87卷 / 02期

关键词：

D O I：

10.1016/0044-8486(90)90270-W

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Biofilm nitrification characteristics in sea-water recirculation systems were measured and compared to those in fresh-water systems. As in fresh-water systems, biofilm kinetics could be described accurately by the 1 2-order/0-order kinetic model. However, sea-water systems need a much longer start-up period in which nitrite accumulates. Thereby, the maximum nitrification capacity is considerably lower than in fresh-water systems; at 24°C a maximum 0-order ammonia removal rate of 0.28 g m-2 d-1 NH4-N is observed, versus 0.69 g m-2 d-1 NH4-N in comparable fresh-water systems. Adaptation of a fresh-water biofilter to higher salinities was found to be possible, providing an effective tool for a shorter start-up period of a sea-water system. Nitrification rates were obtained which allow a rational design of intensive recirculating sea-water fish culture systems. © 1990.

引用

页码：133 / 143

页数：11

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