2种海水鱼工厂化循环水养殖中微细颗粒物的赋存特征  

Occurrence of fine particles in an industrial recirculating mariculture system for marine fish farming of two species

作　　者：卢洋 朱弦一 郭悦 谷晶 杨国军 任同军 王华 LU Yang;ZHU Xianyi;GUO Yue;GU Jing;YANG Guojun;REN Tongjun;WANG Hua(College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China)

机构地区：[1]大连海洋大学水产与生命学院,辽宁大连116023

出　　处：《农业环境科学学报》2024年第5期1143-1150,共8页Journal of Agro-Environment Science

基　　金：国家重点研发计划项目(2022YFE0117900);辽宁省教育厅项目(LJKFZ20220240);设施渔业教育部重点实验室(大连海洋大学)开放课题(202223)。

摘　　要：为了明晰工厂化循环水处理系统对水中微细颗粒物的去除效果,对红鳍东方鲀(Takifugu rubripes)和半滑舌鳎(Cynoglossus semilaevis)工厂化循环水养殖过程中微细颗粒物的质量、组成和粒径分布的动态变化进行研究。结果表明,基于弧形筛、泡沫分离器和生物滤池的工厂化循环水处理工艺,红鳍东方鲀和半滑舌鳎养殖池水中微细颗粒物浓度均稳定在20 mg·L^(-1)左右,且投喂后水中微细颗粒物含量明显增高,微细颗粒物中有机物所占比例均达到90%以上,表明水中微细颗粒物增多是投喂所致。红鳍东方鲀养殖池水中微细颗粒物的粒径主要分布在60~170 nm,半滑舌鳎养殖池水中微细颗粒物的粒径为95~420 nm。养殖池出水经水处理系统处理后,水中留存的微细颗粒物的粒径主要介于95~110 nm之间,表明该循环水养殖系统中粒径在60~95 nm之间和粒径大于110 nm的微细颗粒物可以被有效去除。To clarify the removal effects of an industrial circulating water treatment system on fine particulate matter in water,dynamic changes in the mass,composition,and particle size distribution of fine particulate matter during the industrial circulating water culture of Takifugu rubripes and Cynoglossus semilaevis were studied.The results showed that the concentration of fine particles in the aquaculture ponds of T.rubripes and C.semilaevis was stable at about 20 mg·L^(-1)based on an industrial circulating water treatment process using an arc sieve,foam separator,and biological filter.The content of fine particles in the water increased significantly after feeding;the proportion of organic matter in the fine particles reached more than 90%,indicating that the increase in fine particles in the water was caused by feeding.The particle size of fine particles was mainly distributed within 60-170 nm in the T.rubripes culture pond water and 95-420 nm in the C.semilaevis culture pond water.After the effluent of the aquaculture pond was treated using the water treatment system,the particle size of the fine particles retained in the water was mainly between 95 nm and 110 nm,indicating that the fine particles with a particle size of 60-95 nm and greater than 110 nm in the recirculating aquaculture system can be effectively removed.

关 键 词：循环水养殖系统 微细颗粒物 红鳍东方鲀 半滑舌鳎 

分 类 号：X714[环境科学与工程—环境工程]