摘要
采用沙子、活性炭与沸石作为生物滤器载体对牙鲆养殖废水进行处理。牙鲆体长10～15cm,在盐度30,pH8.0～8.1,水温(20±1)℃时的产氨速率为0.248g/(kg·d),产磷速率为0.537g/(kg·d),溶解有机物积累速率为1.406g/(kg·d)。以沙子、活性炭及沸石为载体的生物滤器对其废水处理的平均氨去除率分别为34.79g/(m^3·d)、35.60g/(m^3·d)和36.17g/(m^3·d),有机物平均降解速率分别为 1.760g/(m^3·d)、2.134g/(m^3·d)和2.420g/(m^3·d)。3种生物滤器对养殖废水都有明显的处理效果,其中沸石效果最好。
The cultivating wastewater of Japanese flounder was treated by biological purifying devices with the filter media of sand, activated carbon granule and ziolite, respectively. The initial body length of the flatfish was 10-15 cm and the salinity was 30, pH 8.0-8.1 and water temperature (20 ± 1)℃ , when the apparent ammonia accumulating ratio of the flatfish was 0. 248 g/(kg · d) , and the phosphor accumulating ratio was 0. 537 g/(kg ·d) , the resolvable organism accumulating ratio was 1.406 g/ ( kg · d). For the three types of biological purifying devices, the average removing ratios of ammonia were 34.79 g/(m3 · d) , 35.60 g/(m3 · d)and 36. 17 g/(m3 · d) Respectively, and the average degradative ratios of resolvable organism (on COD basis) were 1. 760 g/(m3 · d) ,2. 134 g/(m3 · d) and 2.420 g/(m3 · d) , respectively. The purification effects were obvious with the three types of filter media in treating cultivating wastewater, and ziolite has the best treating effect.
出处
《中国水产科学》
CAS
CSCD
北大核心
2003年第3期242-245,241,共5页
Journal of Fishery Sciences of China
基金
辽宁教育厅高校科研项目(20102135)
关键词
生物滤器
沙子
活性炭
沸石
养殖废水处理
biological purifying device
sand
activated carbon
ziolite
cultivating wastewater purification
