AN AID FOR ENVIRONMENT IMPROVEMENT FOR TIDELAND IN A SHELLFISH FARM

摘要

A mud environment improving agent of a shellfish farm is provided to increase productivity by maintaining the favorable survival rate better than using the existing magnesium hydroxide and to secure excellent purification performance of the polluted mud. A mud environment improving agent of a shellfish farm consists of MgO(Magnesium Oxide) of 10~30wt.%, CaO(Calcium Oxide) of 40~60wt.%, SiO2(Silicon Dioxide) below 10wt.%, Fe2O3(Iron Oxide) below 1wt.%, Al2O3(Aluminum Trioxide) below 1wt.%, ignition residue below 40wt.%, and alkalic powder of 45~65wt.%. The mud environment improving agent is particles of 1.0~5.5mm. The mud environment improving agent of 150~250g is used per square meter in spreading the mud environment improving agent on the mud of the shellfish farm. A pH is below 12 in spreading the improving agent.