| 摘要 |
PURPOSE: A method of producing a dissolved oxygen generating composition containing an oxygen generating agent, accelerator and supporter as a main component is provided which is simple for use as compared to conventional oxygen supply methods, generates no harmful gas damaging other crops and can maintain comfortable working environment. The composition generates 10.5 to 23.0ppm or more of O2. CONSTITUTION: About 2 to 5 parts by weight of an oxygen generating agent is mixed with 5,000 to 20,000 parts by weight of water, 0.2 to 0.7 parts by weight of an accelerator and a supporter comprising a surface modified silica. The oxygen generating agent is an organic-based oxygen generating agent comprising one or two or more mixtures of ketone peroxides, diacyl peroxides and hydroperoxides or an inorganic-based oxygen generating agent comprising one or two or more mixtures of ammonium persulfate, sodium persulfate, potassium perchlorate, potassium persulfate, potassium chlorate and hydrous sodium chlorite. The surface modified silica is made by surface modification of porous silica having a porous diameter of 35 angstroms and a surface diameter of 900m¬2/g with aminoalkoxysilane. |
