Nitrogen runoff loss from paddy-pond system based on water cycling

2013 ◽  
pp. 351-362
Keyword(s):  
Pond System ◽  
Water Cycling ◽  
Nitrogen Runoff ◽  
Nitrogen Runoff Loss

Experimental study of high rate pond system treating piggery wastewater

1996 ◽  
Vol 34 (11) ◽  
pp. 125-132 ◽  
Author(s):  
Baozhen Wang ◽  
Wenyi Dong ◽  
Jinlan Zhang ◽  
Xiangdong Cao
Keyword(s):  
Experimental Study ◽  
Energy Consumption ◽  
Flow Pattern ◽  
Fish Farming ◽  
High Rate ◽  
Land Area ◽  
Piggery Wastewater ◽  
Hydraulic Flow ◽  
Pond System ◽  
Economic Analyses

The results of an experimental study conducted in a full-scale high rate pond system treating piggery wastewater at Jianfengshan Piggery, Panyu City, Guandong Province, are presented. The system consists of two advanced anaerobic ponds (AAP) in parallel, followed by an anaerobic transformation pond (ATP) and a five-cell algae-bacterial pond (ABP). The mechanism of the AAP is described and the hydraulic flow pattern analyzed. Fermentation pits (FP) built on the bottom performed very efficiently, operating like UASB in principle. A new concept of ATP is advanced, based on its ability to transform poorly degradable materials to more easily degradable ones. It was found in the study that the HRP system was more efficient, more reliable and saved 40% land area compared with a conventional pond system. Economic analyses of both the energy consumption and the benefit to the pond system of fish farming are also included in the paper.

Nitrogen removal from polluted river water in a novel ditch–wetland–pond system

2013 ◽  
Vol 60 ◽  
pp. 135-139 ◽  
Author(s):  
Wenzhong Tang ◽  
Wenqiang Zhang ◽  
Yu Zhao ◽  
Yuanyue Wang ◽  
Baoqing Shan
Keyword(s):  
River Water ◽  
Nitrogen Removal ◽  
Polluted River ◽  
Pond System

Numerical simulation of water cycling and heat balance in agricultural ecosystems

1992 ◽  
Vol 8 (2) ◽  
pp. 108-116
Author(s):  
Yao Deliang ◽  
Shen Weiming ◽  
Li Jiachun
Keyword(s):  
Numerical Simulation ◽  
Heat Balance ◽  
Agricultural Ecosystems ◽  
Water Cycling

Spatial patterns of nitrogen runoff from Chinese paddy fields

2016 ◽  
Vol 231 ◽  
pp. 246-254 ◽  
Author(s):  
Xikang Hou ◽  
Feng Zhou ◽  
Adrain Leip ◽  
Bojie Fu ◽  
Hui Yang ◽  
...  
Keyword(s):  
Spatial Patterns ◽  
Paddy Fields ◽  
Nitrogen Runoff

Recirculation in a small sewage pond system

1988 ◽  
Vol 22 (10) ◽  
pp. 1287-1292 ◽  
Author(s):  
T.J. Wrigley ◽  
D.F. Toerien ◽  
A. Moller ◽  
A.J.H. Pieterse
Keyword(s):  
Pond System
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