摘要
为探究不同滤料和碳氮比对对虾养殖尾水处理效果的影响,采用藤壶壳和聚乙烯(PE)作为生物滤料,考察了碳氮比分别为5、10、20、30时对南美白对虾Penaeus vannamei养殖尾水的水处理效果。结果表明:碳氮比分别为5、10、20时,藤壶壳组的总氨氮、亚硝酸盐去除率高于PE组,但碳氮比为30时,藤壶组和PE组的总氨氮和亚硝酸盐去除效果无显著性差异(P>0. 05);藤壶组和PE组在碳氮比为20和30时,总氨氮去除率在30 h后均显著高于碳氮比为5和10时(P<0. 05),去除率高于98%;藤壶组和PE组碳氮比为10、20、30时,在30 h后亚硝酸盐去除率显著高于碳氮比为5时(P<0. 05),去除率高于93. 79%。综合本研究中不同滤料和不同碳氮比对水质处理效果的研究结果,并结合藤壶壳和PE的经济成本,建议尾水处理中碳氮比取20∶1,滤料取藤壶壳较为适宜。
Removal rates of total organic carbon(TOC),total ammonia nitrogen(TAN)and nitrite nitrogen were monitored in stimulant culture effluent of Pacific white leg shrimp Litopeanaeus vannamei in a circulating water operation device in which barnacle shells and polyethylene(PE)were used as biological filter materials and in which there was C∶N ratio of 5,10,20,and 30 to explore the effects of different filter materials and C∶N ratios on treatment of the effluent of Pacific white leg shrimp culture.The results showed that there were higher TAN and nitrite removal rates in the circulating water operation device with barnacle shells and at C∶N ratio of 5,10 and 20 than those in the device with PE(P<0.05),without significant difference in TAN and nitrite removal rate in both treatment groups at C∶N ratio of 30(P<0.05).In the same filter material,however,there was significantly higher TAN removal rate,with TAN removal rate of over 98.0%,at C∶N ratio of 20 and 30 than that at C∶N ratio of 5 and 10 after 30 h(P<0.05).The removal rate of nitrite in barnacles shell and PE groups was shown to be significantly higher at C∶N ratio of 10,20 and 30,with removal rate of over 93.79%,than that at C∶N ratio of 5 in the same filter material after 30 h(P<0.05).It is concluded that it is more appropriate to use barnacle shells as a filter material under C∶N=20∶1 for treatment of the culture effluent of Pacific white leg shrimp.
作者
章霞
徐志进
柳敏海
李凌刚
殷小龙
罗海忠
傅荣兵
李伟业
张川
油九菊
ZHANG Xia;XU Zhi-jin;LIU Min-hai;LI Ling-gang;YIN Xiao-long;LUO Hai-zhong;FU Rong-bing;LI Wei-ye;ZHANG Chuan;YOU Jiu-ju(Zhoushan Fisheries Research Institute of Zhejiang Province,Zhoushan 316000,China;Zhoushan Ocean and Fisheries Bureau,Zhoushan 316000,China)
出处
《大连海洋大学学报》
CAS
CSCD
北大核心
2018年第5期620-624,共5页
Journal of Dalian Ocean University
基金
浙江省公益技术研究农业项目(2015C32111)
舟山市公益类科技项目(2016C31058)
舟山市现代渔业发展专项资金资助项目(舟财农[2016] 52号)
浙江省农林渔业经营与管理体系建设专项(舟财农[2017] 78号)
