摘要
人工湿地作为高效污水处理系统,已广泛应用于处理各种难降解污染物,但是关于维护管理方面研究较少。本研究使用黑水虻资源化利用人工湿地固体废弃物,分别设置了7个固体废弃物添加梯度(0%、20%、30%、40%、50%、60%和100%),并搭配麦麸和玉米粉,研究黑水虻生长、营养成分和氮磷含量等内容。结果表明,经过16 d的养殖,添加20%固体废弃物组的生长和饲料利用情况仅次于未添加组,增重率、饵料系数和特定生长率分别为(444.90±6.45)%、(3.52±0.21)%和(10.60±0.37)%,饲料利用率和生物转化率分别为(47.9±4.12)%和(28.5±1.23)%。人工湿地固体废弃物的VSS、粗灰分、粗蛋白、粗脂肪和有机质含量分别为(36.37±2.33)%、(63.63±2.27)%、(30.76±2.07)%、(1.37±0.03)%和(19.19±1.26)%。随着人工湿地固体废弃物的添加,除了饲料和残饵中的粗灰分、粗蛋白和氮逐渐升高,其他成分均逐渐降低,黑水虻中的氮磷逐渐降低。
As an efficient sewage treatment system,constructed wetlands have been widely used to treat various refractory pollutants,but there are few studies on maintenance and management.In this study,7 solid waste addition gradients(0%,20%,30%,40%,50%,60%and 100%)were set for the reclamation of solid waste in constructed wetlands,and wheat bran and corn flour were used to study the growth,nutrient composition and nitrogen and phosphorus content of Hermetia illucens.The results showed that after 16 days of breeding,the growth and feed utilization of the 20%solid waste group was second only to that of the non-added group,and the weight gain rate,feed coefficient and specific growth rate were(444.90±6.45)%,(3.52±0.21)%and(10.60±0.37)%,respectively.Feed utilization rate and biological conversion rate were(47.9±4.12)%and(28.5±1.23)%,respectively.The contents of VSS,ash,crude protein,crude fat and organic matter in solid waste from constructed wetland were(36.37±2.33)%,(63.63±2.27)%,(30.76±2.07)%,(1.37±0.03)%and(19.19±1.26)%respectively.With the addition of solid waste in constructed wetland,except for crude ash,crude protein and nitrogen in feed and bait,other components gradually decreased,and nitrogen and phosphorus in Hermetia illucens gradually decreased.
作者
张扬
于晓桐
唐旭东
ZHANG Yang;YU Xiao-tong;TANG Xu-dong(Shanghai Aquatic Science and Technology Co.,Ltd.,Shanghai 200090,China)
出处
《环境生态学》
2024年第7期129-134,142,共7页
Environmental Ecology
基金
上海市水务局科研项目(沪水科2024-01)资助。
关键词
黑水虻幼虫
人工湿地
固体废弃物
Hermetia illucens larva
constructed wetland
solid waste
作者简介
张扬(1995-),男,山东临沂人,硕士,主要从事零交换水养殖系统研究,E-mail:zhangy@saee.cn。
