【摘要】 用包埋法制备固定化光合细菌 ,并通过制备方法及使用方法的改进 ,使净化水质效果得到改善。四种不同包埋载体的试验结果表明 ,含 3%沸石的海藻酸钙凝胶珠强度最大 ,净化水质活性最高。水体中NH3-N、NO2 -N的含量及COD值的下降幅度随包埋比的增大而增大。对固定化光合细菌的用量及活化处理方法进行了探讨。生产规模试验在 5 0m3育苗池中进行。一次性投入固定化光合细菌 19kg ,十天苗存活率 40 .6% ,比泼洒相同浓度游离光合细菌的对照池提高 11.2 % ,多产大眼幼体 15 .75万个。更多还原

【Abstract】 Through the improvement of both the ways of preparation and the methods of application , better effects of the immobilized PSB on the purification of water quality were achieved . Four kinds of immobilized carrier were tested . The results showed that the calcium alginate gel pellets containing 3% permutite was better than others in the aspects of both pellet strength and the activity of purifying water quality . The decrease of NH 3-N,NO 2-N concentration and the value of COD in the water varied in step with the increase of the embedding ratio .The proper dosage of the immobilized PSB and the methods of activating immobilized PSB were studied .The experiments in production scale was carried out in 50m 3 zoeae rearing ponds. The highest zoeae survival rate of 40.6% was found in the pond where 19kg of immobilized PSB were added. Compared to the pond where free PSB were added in the same dosage, the zoeae survival rate was increased by 11.2%. Thus , the harvest of megalopa increased by 157.5 thousands pieces of larvae per pond.更多还原