复合有益菌剂对工厂化大菱鲆育苗水净化效果研究

On the basis of purifying effect of single strain probiotic bacteria on water of intensive turbot breeding, the purifying effect of multistrain bacteria product was studied. The results of experiments showed that the free multistrain mixed bacteria had better purifying effect on turbot breeding water than that of any singlestrain bacteria. this phenomenon can be explained with the principle of “ biopump”. The immobilized multistrain probiotics product, biofilm, also showed excellent purifying effect on wate r of turbot breeding. The removal rates of COD and ammonia in 5 days were up to 73.1% and 80.0%, respectively. The concentration of nitrite kept low, which indicated most ammonia had been transformed into nitrate and accumulation of harmful intermediate productnitrite was decreased. This paper supplied theoretical and technical foundation for saving sea water through biopurification of wastewater from marine fish culture.

Study on purifying effect of multi strain probiotics product on water of intensive turbot breeding

On the basis of purifying effect of single-strain probiotic bacteria on water of intensive turbot breeding,the purifying effect of multi-strain bacteria product was studied.The results of experiments showed that the free multi-strain mixed bacteria had better purifying effect on turbot breeding water than that of any single-strain bacteria.this phenomenon can be explained with the principle of " bio-pump".The immobilized multi-strain probiotics product,bio-film,also showed excellent purifying effect on water of turbot breeding.The removal rates of COD and ammonia in 5 days were up to 73.1% and 80.0%,respectively.The concentration of nitrite kept low,which indicated most ammonia had been transformed into nitrate and accumulation of harmful intermediate product-nitrite was decreased.This paper supplied theoretical and technical foundation for saving sea water through bio-purification of wastewater from marine fish culture.