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.
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
[1] Chin K K, Ong S L, Foa S C. Water treatment and recycling system for intensive fish farming[J]. Water Science & Technology,1993,27(1):141-148.
[2] Kuai L. Ammonium removal by the oxygen limited autotrophic nitrification denitrifcation system[J]. Applied and Environmental Microbiology,1998,64(1): 4500-4506.
[3] Toh S K,Webb R,Ashbolt N J. Enrichment of autotrophic anaerobic ammonium-oxidizing consortia from various wastewaters [J]. Microbial Ecology,2002,43(1):154-167.
[4] Mac Millan R J, Cawthom R J, White S K, et al. Design and maintenance of a closed artificial seawater system for long-term holding of bivalve shellfish[J]. Aquacultura Engineering, 1994,13(4): 241-250.
[5] 万红,宋碧玉,扬毅.工厂化水产养殖废水处理的研究与展望[J].中国农机化,2006,(5):54~56.
[6] Marco V Acosta, Nassar Juliom Morell, Jorge E Corredor. Nitrogen budget of a tropical semi-intensive freshwater fish culture pond[J]. World Aquac. Soc.,1994,25(2):261-269.
[7] 黄国强,李德尚,董双林.一种新型对虾多池循环水综合养殖模式[J].海洋科学,2001,25(4):48~49.
[8] WU Xiongfei, ZHAO Zhidong, LI Deshang. Closed recirculating system for shrimp-mollusk polyculture[J]. Chinese Journal of Oceanology and Limnology,2005,23(4):461-468.
[9] Moss B. Ecology of Freshwater [M]. London: Oxford,1980.87-90.
[10] 李永函.淡水生物学[M].北京:高等教育出版社,1994.214~241.
[11] Vermaat J E.Periphyton removal by freshwater micrograzers.In:van Vierssen,et al.Lake Veluwe,A Macrophyte-dominated System under Eutrophication Stress.Dordrecht,The Netherlands:Kluwer Academic Publishers,1994.213-249.
[12] Stevenson R J, Lowe R L. Algal Ecology Freshwater Benthic System[M]. San Diego: Academic Press,1996.343-347.
[13] Van Vierssen W. The influence of human activities on the functioning of macrophyte dominate aquatic ecosystems in the coastal area of Western Europe Int Symp Aquat Macrophytes, Nijmegen[J]. The Netherlands,1983:273-281.
[14] Mulholland P J, et al. The effect of grazing intensity on phosphorus spiraling in autotrophic streams[J]. Oecologia,1983,58:358-366.
[15] Cuker B E. Grazing and nutrient interactions in controlling the activity and composition of the epilithica algal community of an arctic lake[J]. Limnol. Oceanogr.,1983,28:133-141.
[16] Boyd C E. Practical aspects of chemistry in pond aquaculture [J]. The Progressive Fish Culturist,1997,(59):85-93.
[17] Yossi Tal, Joy E M Watts, Susan B Schreier. Characterization of the microbial community and nitrogen transformation processes associated with moving bed bioreactors in a closed recirculated mariculture system[J]. Aquaculture,2003,215(1-4):187-202.
