Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

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

  • 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 date: 2007-01-10

  Revised date: 2007-12-23

  Online published: 2008-07-28


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.

Cite this article

HAN Shi-qun, YAN Shao-hua, FAN Cheng-xin . Recycling of Aquaculture Wastewater and Reusing the Resources of Redundant Algae Biomass[J]. JOURNAL OF NATURAL RESOURCES, 2008 , 23(4) : 560 -567 . DOI: 10.11849/zrzyxb.2008.04.002


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