Study on the capability of a kind of non-oxidizing biocide for marine creatures

In order to control the marine creatures in the seawater circulating system of CNOOC Zhuhai Natural Gas Power Co.,Ltd.,TS-8511,as a kind of environment-friendly non-oxidizing biocide,has been developed.Its biocidal capacibility,acute toxicity,bioaccumulation and biodegradability are evaluated,and its action mechanisms are discussed.The results show that when the dosage of TS-8511 is 5 mg/L and action time 12 h,its killing of marine creatures can reach 90% in 72 h.When the dosage of TS-8511 is 10 mg/L or more,its killing rate can reach 100% in72 h.TS-8511 is characterized by high efficiency,low toxicity,less bioaccumulation and readily biodegradable.It can effectively kill shellfishes and clams,but has little effect on fishes.