TY - JOUR
T1 - Aquaculture wastewater quality improvement by water spinach (Ipomoea aquatica Forsskal) floating bed and ecological benefit assessment in ecological agriculture district
AU - Zhang, Qiuzhuo
AU - Achal, Varenyam
AU - Xu, Yatong
AU - Xiang, Wei Ning
N1 - Funding Information:
This research is supported by grants from Ministry of Education of the People's Republic of China (No. 20120076120019 ), Shanghai Science and Technology Committee (No. 08dz1900407 , No. 12ZR1409100 and No. 12231205300 ), East China Normal University ( ECNU2012 ). The authors would like to thank them for funding this work.
PY - 2014/5
Y1 - 2014/5
N2 - The current ecological situation of aquaculture water quality in Wushe (Songjiang district, Shanghai city) district is not up to mark. In the present study, characteristic of ecological agriculture park was first investigated and then water spinach floating bed was used to improve the aquaculture wastewater quality. The results showed significant improvement in the aquaculture water quality at the experimental site with removal rates of TN, NH4+-N, NO2--N and TP were 11.2%, 60.0%, 60.2% and 27.3%, respectively. Moreover, we found that the removal mechanism of ammonia nitrogen and nitrate nitrogen by water spinach was mostly by microorganism, whereas the removal mechanism of phosphorus was mainly by plant absorption. In addition, water spinach could be harvested at regular time intervals, which could achieve good economic benefits. This research could provide a good case study for sustainable development in ecological agricultural park for other cities around the world.
AB - The current ecological situation of aquaculture water quality in Wushe (Songjiang district, Shanghai city) district is not up to mark. In the present study, characteristic of ecological agriculture park was first investigated and then water spinach floating bed was used to improve the aquaculture wastewater quality. The results showed significant improvement in the aquaculture water quality at the experimental site with removal rates of TN, NH4+-N, NO2--N and TP were 11.2%, 60.0%, 60.2% and 27.3%, respectively. Moreover, we found that the removal mechanism of ammonia nitrogen and nitrate nitrogen by water spinach was mostly by microorganism, whereas the removal mechanism of phosphorus was mainly by plant absorption. In addition, water spinach could be harvested at regular time intervals, which could achieve good economic benefits. This research could provide a good case study for sustainable development in ecological agricultural park for other cities around the world.
KW - Aquaculture wastewater
KW - Ecological benefit
KW - Water spinach floating bed
UR - http://www.scopus.com/inward/record.url?scp=84901012207&partnerID=8YFLogxK
U2 - 10.1016/j.aquaeng.2014.04.002
DO - 10.1016/j.aquaeng.2014.04.002
M3 - 文章
AN - SCOPUS:84901012207
SN - 0144-8609
VL - 60
SP - 48
EP - 55
JO - Aquacultural Engineering
JF - Aquacultural Engineering
ER -