A novel combined recirculating treatment system for intensive marine aquaculture |
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| Authors: | Xuechu Chen Guoquan Zeng Qilang Xie Yi Chen Yingying Huang Jianbiao Qiu Jinbo Cai Chen Chen Jianwu Tang |
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| Affiliation: | 1. Shanghai Key Lab for Urban Ecological Processes and Eco‐Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China;2. Zhejiang Mariculture Research Institute, Wenzhou, China;3. Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA, USA |
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| Abstract: | This study established a pilot‐scale recirculating treatment system that coupled an ecological process with a biological process to achieve adequate water quality and to minimize the water consumption for intensive marine culture. The recirculating treatment system consisted of a settling cell, a biofilter tank, a bivalve tank and gravel beds. The toxic pollutants, threatening the growth of bivalves, were reduced by the settling cell and the biofilter tank, so that the polyculture of shrimp and bivalves could be achieved. The living bivalve tank could function well as a remover of remaining small suspended solids (SS), and other pollutants. As the SS was reduced to a very low level by bivalve tank before the water flowing into the gravel beds, the risk of clogging was prevented. The studies suggested that the system maintained high removal efficiencies of SS, ammonium nitrogen ( ) and nitrite nitrogen ( ) and could contribute to the increase in shrimp yield. |
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| Keywords: | recirculating treatment intensive marine culture nitrogen removal bivalve tank shrimp yield |
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) and nitrite nitrogen (
) and could contribute to the increase in shrimp yield.