Premium
A novel combined recirculating treatment system for intensive marine aquaculture
Author(s) -
Chen Xuechu,
Zeng Guoquan,
Xie Qilang,
Chen Yi,
Huang Yingying,
Qiu Jianbiao,
Cai Jinbo,
Chen Chen,
Tang Jianwu
Publication year - 2017
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.13323
Subject(s) - biofilter , recirculating aquaculture system , pollutant , settling , biology , aquaculture , suspended solids , water quality , shrimp , fishery , polyculture , environmental science , environmental engineering , pulp and paper industry , wastewater , ecology , fish <actinopterygii> , engineering
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 ( NH 4 + ‐N ) and nitrite nitrogen ( NO 2 − ‐N ) and could contribute to the increase in shrimp yield.