Conservation buffer systems for water quality security in South to North Water Transfer Project in China: an approach review

2009 ◽  
Vol 4 (4) ◽  
pp. 394-401 ◽  
Author(s):  
Song Cheng ◽  
Hongtao Song
Keyword(s):  
Water Quality ◽  
Water Transfer ◽  
North Water

Prediction of water quality in South to North Water Transfer Project of China based on GA-optimized general regression neural network

2014 ◽  
Vol 15 (1) ◽  
pp. 150-157 ◽  
Author(s):  
Zhuomin Wang ◽  
Dongguo Shao ◽  
Haidong Yang ◽  
Shuang Yang
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Water Quality ◽  
Water Transfer ◽  
General Regression Neural Network ◽  
Quality Data ◽  
Water Delivery ◽  
The South ◽  
North Water ◽  
General Regression

The safety of water delivery and water quality in the South to North Water Transfer Project of China is important to northern China. Water quality data, flow data and data on factors that influence water quality were collected from 25 May to 26 August, 2013. These data were used to forecast water quality and calculate the relative error when using a genetic algorithm optimized general regression neural network (GA-GRNN) model as well as conventional general regression neural network (GRNN) and genetic algorithm optimized back propagation (GA-BP) models. The GA-GRNN method requires few network parameters and has good network stability, a high learning speed and strong approximation ability. The overall forecasted result of GA-GRNN is the best of three models, of which the root mean square error (RMSE) of every index is nearly the least among three models. The results reveal that the GA-GRNN model is efficient for water quality prediction under normal conditions and it can be used to ensure the security of water delivery and water quality in the South to North Water Transfer Project.

Water Environmental Quality Evaluation Based on Visualize Classification for Huangbizhuang Reservoir of South-North Water Transfer Project

2012 ◽  
Vol 468-471 ◽  
pp. 2955-2958
Author(s):  
Da Lei Zhang ◽  
Yi Han Li ◽  
Ying Jie Sun ◽  
Fan Qiao ◽  
Mou Lv
Keyword(s):  
Water Quality ◽  
Environmental Quality ◽  
Quality Evaluation ◽  
Water Quality Monitoring ◽  
Quality Standard ◽  
Water Transfer ◽  
Evaluation Indexes ◽  
North Water ◽  
Individual Evaluation ◽  
Water Environmental Quality

According to the water quality monitoring data for Bashang section of Huangbizhuang reservoir conveying water for South-North Water Transfer Project from 2006 to 2009, individual evaluation, quarterly evaluation and overall merit were employed for water environmental quality evaluation with visualize classification on the ground of water quality standard classification, the results indicated most of individual evaluation indexes were within class Ⅰ or Ⅱand the indexes of quarterly evaluation and overall merit were with class Ⅰ which the third quarterly evaluation index was higher than that of the other three quarters, thus overall water quality was good enough for satisfying water quality

scholarly journals Risk analysis and emergency countermeasures for oil pollution in main channel of South to North Water Transfer Project

2018 ◽  
Vol 246 ◽  
pp. 02020
Author(s):  
Jie Zhu ◽  
Xiaohui Lei ◽  
Hezheng Zheng ◽  
Jiankui Liang ◽  
Jin Quan
Keyword(s):  
Water Quality ◽  
Traffic Accidents ◽  
Oil Spills ◽  
Oil Pollution ◽  
Steel Structure ◽  
Water Transfer ◽  
Main Channel ◽  
Human Beings ◽  
Main Trunk ◽  
North Water

The total length of the main channel of the South-to-North Water Transfer Project is 1432 kilometers. There are nearly 1, 000 supporting mechanical and electrical equipment along the channel gate station. At the same time, there are more than 1, 000 main roads with channel crossing roads along the route. Oil spills may occur due to various reasons such as equipment leakage or traffic accidents. Entering the channel directly causes pollution of water quality. The pollution of water quality will directly endanger the health of human beings. Therefore, it is essential to quickly and efficiently remove oil pollutants from the water supply channels. This paper analyzes the basic characteristics of the Middle Route Project of South-to-North Water Transfer, and the risk sources of sudden oil pollution, and the common degreasing devices such as oil booms, oil absorbing pads, and oil removal devices based on steel structure pontoons in the main trunk The applicability was analyzed. The results show that the traditional oil-absorbing felt, oil boom and other degreasing devices have poor applicability in the middle line, which can not meet the requirements of the mid-line water quality and channel flow rate, and the adaptability to the channel engineering characteristics is also insufficient. The degreasing device based on the steel structure pontoon can adapt to the current situation of the midline, and has good effects in preventing the oil film from escaping and splashing. Therefore, in general, the degreasing device based on the steel structure pontoon is suitable for the midline burst oil. Effective measures and means of pollution accidents

scholarly journals A Gateway to Rapid Prediction of Water Quality: A Case Study in China’s South-to-North Water Diversion Project

Water ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2407
Author(s):  
Yuxuan Zhang ◽  
Ranhang Zhao ◽  
Haofang Wang ◽  
Tao Peng ◽  
Huaqing Zhao
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Water Transfer ◽  
Water Diversion ◽  
Successful Operation ◽  
Long Distance ◽  
Rapid Prediction ◽  
Water Diversion Project ◽  
North Water ◽  
Sudden Water Pollution

Water quality assurance is the primary factor for the successful operation of water diversion projects across river basins. The rapid prediction of water pollution is the basis for timely and effective emergency control and disposal measures. In China, since the open channels intersect with numerous waterways and traffic arteries, water transfer projects are prone to sudden water pollution accidents. In this paper, the rapid prediction method was developed for sudden water pollution accidents that possibly occurred in the East Route of the South-to-North Water Diversion Project (ERP) in Shandong Province. With the empirical formula of the pollution transfer law, a rapid prediction model of water quality (WQRP) was established based on the simulation of the typical accidents in the main channel. Finally, four typical accidents were selected as application examples, and the prediction results were compared with the results from a computer numerical simulation to demonstrate the validity of the model. The results showed that the prediction results by the WQRP model meet the accuracy requirements. This method is of great significance for providing water transport security in the extreme conditions of long-distance water transfer projects.

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