纳米催化微电解海水的杀菌效果及斜带石斑仔鱼对其适应性的研究

The sterilization of seawater treatment by the little electrolysis technique of the nanocatalyst and its adaptive research of grouper larvae

水质的调控是决定养殖生产成败的一个关键因素,目前已有化学和物理等水处理方法被应用到水产种苗和养殖生产,对改善水产养殖的生长环境具有一定效果,但这些方法仍存在各种不同的弊端。本文通过纳米催化微电解技术对海水杀菌效果的研究,以期确定该仪器的最低完全杀菌的处理当量;利用不同的处理当量了解斜带石斑鱼(Epinephelus coioides)仔鱼对水体中游离氯的耐受范围,并在石斑鱼的苗种培育生产中进行了可行性的实验。研究结果表明:该技术对海水的消毒杀菌效果非常显著,处理当量在1.06 W.h/t以上时,杀菌效果可达到100%,该当量处理每吨海水的用电成本约为0.053分;斜带石斑仔鱼可耐受的最高处理当量为4.08 W.h/t,该当量已达到完全杀菌的效果,且持续抑菌效果良好,因此该处理当量可应用到石斑鱼苗种的实际生产中。利用纳米催化微电解海水产生游离氯的消毒作用,以灭活养殖环境水体中的病原生物,达到净化水体,抑制病原性疾病的目的,在水产动物种苗与养殖生产中具有一定的推广运用价值,且具较好的环保功效。

The controlling of water quality is a key factor for aquatic production. In recent years, chemical and physical water- treatment methods have been used in aquatic species and aquaculture production, which has a certain effect in improving the growing environment of the aquaculture. But there are still kinds of shortages existed. In this paper, seawater sterilization was studied by the little electrolysis technique of the nanoeatalyst, which expected to ascertain the minimum value of completely sterilization. And tolerance range of free chlorine in the aquaculture water was studied by different levels of treatment intensity of this technology. The result showed that when the treatment intensity was 1.06 W · h/t, the sterilizing rate could be 100%. And the cost was 0. 00053 yuan per ton seawater. The highest tolerance intensity for the grouper fry was 4.08 W · h/t. And under this intensity, it could reach the best effect of sterilization and continuous baeteriostatie. And this intensity could be used in practical production of offspring seed. Using the little electrolysis technique of the nanocatalyst to produce the free chlorine, we could disinfect pathogenic organisms, and further purify water, and expect to suppress the occurrence of pathogenic diseases in the end. Finally, the promotion of the little electrolysis technique of the nanocatalyst could have a certain value and environmental effect in aquaeulture.