论文部分内容阅读
在海水闭合循环系统中加入常用剂量的呋喃唑酮 (C8H7N3 O5)、甲苯咪唑 (C16H13 N3 O3 )、土霉素 (C2 2 H2 4N2 O5.2H2 O)、氯霉素 (C11H12 O5N2 Cl2 )、CuSO4+FeSO4合剂、强氯精 (C3 Cl3 N3 O3 ,有效氯 6 2 .5 % )、甲醛 (CH2 O)等 7种常用渔药 ,确定系统把 10mg/L总氨氮 (NH4+ N)硝化至较低水平 (CNH4 N<0 .0 5mg/L ,CNO2 N<0 .0 1mg/L)所需的时间及氧化过程中各主要水质指标的变化 ,并以此作为判断生物滤器的硝化能力是否受到影响的依据。结果表明 ,分别加入甲苯咪唑至 1、2、3mg/L(全水体质量浓度 ,其他同此 )、CuSO4+FeSO4合剂 (0 .5 +0 .2 )mg/L、土霉素 1mg/L、氯霉素 1、2、3mg/L均对生物滤器硝化作用无明显影响 ;土霉素 2、3mg/L、强氯精 1mg/L或甲醛 10、2 0、30、4 0mg/L影响生物滤器对亚硝酸氮的氧化 ;分别以呋喃唑酮 1、2、3mg/L、重复添加氯霉素至 3mg/L、重复或直接添加强氯精至 2mg/L都影响氨氮、亚硝酸氮的氧化
In the closed seawater circulation system, conventional dosage of furazolidone (C8H7N3O5), mebendazole (C16H13N3O3), oxytetracycline (C2 2 H2 4N2 O5.2H2 O), chloramphenicol (C11H12 O5N2 Cl2), CuSO4 + FeSO4 (C3 Cl3 N3 O3, available chlorine 6 2 .5%), formaldehyde (CH2 O) and other 7 kinds of commonly used fishery drugs, to determine the system 10mg / L total ammonia nitrogen (NH4 + N) nitrification to a lower level CNH4N <0. 05mg / L, CNO2N <0. 01mg / L) and the changes of the main water quality indicators during the oxidation, and as a basis for judging whether the nitrification ability of the biological filter is affected . The results showed that adding mebendazole to 1,2,3mg / L (the same concentration in water and others), CuSO4 + FeSO4 (0.5 +0.2) mg / L, oxytetracycline 1mg / L, Chloramphenicol 1, 2, 3 mg / L had no significant effect on biological filter nitrification; oxytetracycline 2,3 mg / L, strong chlorine 1 mg / L or formaldehyde 10,2 0,30,4 0 mg / Filter for nitrite nitrogen oxidation; respectively Furazolidone 1,2,3mg / L, repeated addition of chloramphenicol to 3mg / L, repeated or direct addition of strong chlorine to 2mg / L all affect ammonia nitrogen, nitrous oxide oxidation