Yangtao Zhou, Shuang He, Zhengning Wang, Yang Guo, Lanlan Pan

Dalian Ocean University College of Mechanical and Power Engineering

Abstract：

This study systematically constructs the design and operational model of a purification and temporary holding system for intertidal bivalves, focusing on Mizuhopecten yessoensis (Yesso scallop) and Ruditapes philippinarum (Philippine clam). Key operational parameters such as nitrogen emissions, dissolved oxygen (DO) consumption, biofilter flow rate, and water body thermal load were comprehensively analyzed during the purification phase. By establishing a heat transfer model and thermal balance equation, seasonal energy consumption was predicted, and optimal water circulation rate, replenishment rate, oxygen supply, and biofilter volume were determined to achieve energy efficiency and stable system operation. The research results provide theoretical and technical support for the engineering construction and seasonal optimization of purification and holding systems for intertidal bivalves.

Key Words：

Intertidal bivalves; purification and holding system; total ammonia nitrogen emission; recirculating aquaculture; thermal load analysis