自然资源学报 ›› 2008, Vol. 23 ›› Issue (4): 560-567.doi: 10.11849/zrzyxb.2008.04.002

• 资源利用与管理 • 上一篇    下一篇

水产养殖废水循环利用及多余藻类生物量资源化

韩士群1, 严少华1, 范成新2   

  1. 1. 江苏省农业科学院农业资源与环境研究所,南京210014;
    2. 中国科学院 南京地理与湖泊研究所,南京210008
  • 收稿日期:2007-01-10 修回日期:2007-12-23 出版日期:2008-07-28 发布日期:2008-07-28
  • 作者简介:韩士群(1966- ),男,江苏宿迁人,博士,副研究员,主要从事水资源和湖泊生态研究。
  • 基金资助:

    江苏省海洋渔业项目(HYKF-SJ07-0099);江苏省太湖专项(BS2007116);江苏省农科院重点领域资助。

Recycling of Aquaculture Wastewater and Reusing the Resources of Redundant Algae Biomass

HAN Shi-qun1, YAN Shao-hua1, FAN Cheng-xin2   

  1. 1. Institute of Agricultural Resource and Environmental Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. Nanjing Institute of Geography & Limnology, CAS, Nanjing 210008, China
  • Received:2007-01-10 Revised:2007-12-23 Online:2008-07-28 Published:2008-07-28

摘要: 论文采用多个池塘循环养殖生态系统,利用"藻类-螺类-鲈鱼-微生物"营养链关系对养殖废水中多余有机质、营养盐的去除,研究了养殖废水净化、循环利用及水体多余藻类生物量资源化。结果表明,在系统运行的各个时期TN、NO-3-N、NO-2-N的平均去除率都超过80%,对总氨(NH+4+NH3)去除率达97.17%,效果最好;TP的去除率达94.17%,CODcr的去除率为71.87%。出水口TN、TP、叶绿素平均值均达到湖泊Ш类水标准;CODcr达到了Ⅰ类水质标准。NO-3-N、NO-2-N、总氨(NH+4+NH3)、溶解氧含量都符合渔业水质标准要求。该系统处理能力的稳定性较高,可以调控藻类种群结构、充分利用水体藻类和营养物质、将其转化为螺贝类或者价格更高的鲈鱼等增加养殖效益,还可以节约水资源,减少养殖废水排放量。

关键词: 水资源, 养殖废水, 循环利用, 藻类资源化

Abstract: This paper studies aquaculture wastewater purification, recycling and reusing the resource of redundant algae biomass of aquaculture wastewater, from which recirculating aquaculture ecosystem was adopted for several ponds, in brief, through Algae-Snails-Weever-Microbial chain to remove the surplus nutrient and organic material of aquaculture wastewater. Result showed that the average removal rate of TN, NO-3-N and NO-2-N was more than 80%, and the removal rate of total ammonia(NH+4+NH3)was the highest, up to 97.17%; the removal rate of TP and CODcr was 94.17% and 71.87%, respectively. The mean content of outlet's TN and TP and chlorophyll reached Category III lake water standard, COD value reached Type I water level, nitrogen and dissolved oxygen contents were in accordance with the requirement of the fishing industry water quality standards. The ability of the high stability of the system can control algae population structure, and make full use of water algae biomass and nutrients, so energy will be translated into higher prices or shellfish and weever to increase aquaculture efficiency, hence this system can not only save water resources but also decrease the discharge of wastewater.

Key words: water resources, aquaculture wastewater, recycling, algae resources utilization

中图分类号: 

  • S932.4