Effect of Hydraulic Loading Rate on the Efficiency of Effluent Treatment in a Recirculating Puffer Aquaculture System Coupled with Constructed Wetlands  

作　　者：XU Jiabo SHI Yonghai ZHANG Genyu LIU Jianzhong ZHU Yazhu 

机构地区：[1]Shanghai Fisheries Research Institute, Shanghai Fisheries Technical Extension Station

出　　处：《Journal of Ocean University of China》2014年第1期146-152,共7页中国海洋大学学报（英文版）

基　　金：supported by the Agriculture Commission and the Sciences and Technology Commission of Shanghai(No.09ZR1429000);Shanghai University Knowledge Service Platform,Shanghai Ocean University aquatic animal breeding center(ZF1206),China

摘　　要：Constructed wetlands(CWs) were integrated into an indoor recirculating aquaculture system of obscure puffer(Takifugu obscurus) for effluent treatment. The effect of hydraulic loading rate(HLR) on the efficiency of effluent treatment by CWs was examined for over a month. The CWs were operated under brackish conditions(salinity 7.4–7.6) at 3 different HLRs(0.762, 0.633, and 0.458 m d–1) 3 times, 10 days each. Overall, the CWs exhibited high efficiency in removal of total ammonium nitrogen(by 81.03–92.81%) and nitrite nitrogen(by 99.40%–99.68%). The efficiency of CWs in removal of total ammonium nitrogen, nitrate nitrogen, total Kjeldahl nitrogen, total phosphorous, and total suspended solids(TSS) increased with the decrease of HLR. The CWs operated at the 3 HLRs in a decreasing trend proves to be effective, providing a useful method for effluent treatment in commercial puffer aquaculture systems.Constructed wetlands （CWs） were integrated into an indoor recirculating aquaculture system of obscure puffer （Takifuguobscurus） for effluent treatment. The effect of hydraulic loading rate （HLR） on the efficiency of effluent treatment by CWs was ex-amined for over a month. The CWs were operated under brackish conditions （salinity 7.4-7.6） at 3 different HLRs （0.762, 0.633, and0.458 m d-1） 3 times, 10 days each. Overall, the CWs exhibited high efficiency in removal of total ammonium nitrogen （by81.03-92.81%） and nitrite nitrogen （by 99.40%-99.68%）. The efficiency of CWs in removal of total ammonium nitrogen, nitratenitrogen, total Kjeldahl nitrogen, total phosphorous, and total suspended solids （TSS） increased with the decrease of HLR. The CWsoperated at the 3 HLRs in a decreasing trend proves to be effective, providing a useful method for effluent treatment in commercialpuffer aquaculture systems.

关 键 词：CONSTRUCTED WETLAND recirculating AQUACULTURE system PUFFER AQUACULTURE BRACKISH water hydraulic loading rate 

分 类 号：X703[环境科学与工程—环境工程]