scholarly journals Water Environmental Capacity Calculation and Allocation of the Taihu Lake Basin in Jiangsu Province Based on Control Unit

2019 ◽  
Vol 16 (19) ◽  
pp. 3774 ◽  
Author(s):  
Huang ◽  
Zhang ◽  
Tong
Keyword(s):  
Taihu Lake ◽  
Water Environment ◽  
Control Unit ◽  
Jiangsu Province ◽  
Lake Basin ◽  
Environmental Capacity ◽  
Taihu Lake Basin ◽  
Control Units ◽  
Water Environmental Capacity ◽  
Capacity Calculation

The water quality target management of the control unit is a convenient and direct technology for water environment management and the development direction of water environment management in China, involving control unit division and water environment capacity calculation. Taking the Taihu Lake Basin in Jiangsu Province as an example, we propose herein the basic principle of the division of a regional control unit in a plain river network and the method of analyzing the rationality of the control unit division. On this basis, the Taihu Lake Basin in Jiangsu Province was divided into 70 control units. To calculate the water environmental capacity in the plain river network area, we established a water environmental capacity calculation framework based on multiple targets of lakes and rivers, and proposed the goal of water quality "double compliance" of the water environmental functional zone and the assessment section. For this study, we calculated the regional water environmental capacity using the mathematical model of the Taihu Lake Basin’s water environmental capacity, and the water environmental capacities of the 70 control units were allocated by the weight coefficient method, which established water area and functional division length. The research results described herein were applied to the pollution permit management of the Taihu Lake Basin in Jiangsu Province. It provides important technical support for the establishment of a pollution permit system based on the total capacity to improve environmental quality.

scholarly journals Calculation of water environmental capacity of large shallow lakes – a case study of Taihu Lake

Water Policy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 223-236
Author(s):  
Kaiming Hu ◽  
Yunyan Wang ◽  
Bin Feng ◽  
Dan Wu ◽  
Yifan Tong ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Shallow Lakes ◽  
Taihu Lake ◽  
Water Environment ◽  
Concentration Field ◽  
Oxygen Demand ◽  
Lake Basin ◽  
Environmental Capacity ◽  
Taihu Lake Basin ◽  
Water Environmental Capacity

Abstract Lake currents have an important impact on distribution of pollutant concentrations in large shallow lakes. Taking Taihu Lake as an example, in view of the characteristics of wind-driven water flow in the lake, this paper puts forward a water environmental capacity calculation method that uses wind direction and wind speed combined frequency to provide joint correction and pollution zone control for the designed hydrological conditions. In the study, the total length of the pollution belt was controlled to be 10% of the length of the study area, and a mathematical model of two-dimensional unsteady water quantity and quality in Taihu Lake was established. By analyzing the hydrological water quality characteristics and measured data of Taihu Lake in recent years, the flow field and concentration field were simulated and verified, the mathematical model and the plausibility of the parameters were calibrated. The water environmental capacity of Taihu Lake basin was calculated by this method. The calculated results showed that the water environmental capacity of chemical oxygen demand (COD), total phosphorus (TP), and total nitrogen (TN) in Taihu Lake were 113,331 t·a−1, 479 t·a−1 and 6,521 t·a−1. By providing a technical basis for total pollutant control and management in Taihu Lake basin, this study is conducive to the planning and management of water environment.

Industrial and agricultural effects on water environment and its optimization in heavily polluted area in Taihu Lake Basin, China

2013 ◽  
Vol 23 (2) ◽  
pp. 203-215 ◽  
Author(s):  
Haixia Zhao ◽  
Bensheng You ◽  
Xuejun Duan ◽  
Stewart Becky ◽  
Xiaowei Jiang
Keyword(s):  
Taihu Lake ◽  
Water Environment ◽  
Polluted Area ◽  
Lake Basin ◽  
Taihu Lake Basin ◽  
Heavily Polluted Area

scholarly journals Quantification of eco-compensations based on a bidirectional compensation scheme in a water environment: a case study in the Jiangsu Province, China

Water Policy ◽  
2019 ◽  
Vol 21 (6) ◽  
pp. 1162-1174 ◽  
Author(s):  
Jianjian Wang ◽  
Jie Zhou ◽  
Qiaohua Zhao ◽  
Hong Jiang ◽  
Zixuan Wang
Keyword(s):  
Water Quality ◽  
Taihu Lake ◽  
Water Environment ◽  
Compensation System ◽  
Jiangsu Province ◽  
Lake Basin ◽  
Compensation Payment ◽  
Payment Schemes ◽  
Pilot Work ◽  
Pollutant Flux

Abstract This study delineates adjustments to the eco-compensation pilot work of the Taihu Lake Basin and the Huaihe River Basin. The number and location of original compensation sites were adjusted based on the characteristics of the river network and of the water pollution status. A bidirectional eco-compensation system based on water quality exceeding multiple was then implemented. Under this scheme, the eco-compensation payments of each city under three different compensation standards were calculated. A suitable unified short-term compensation standard for the whole province is determined among several compensation payment schemes. The results obtained after implementing the most relevant scheme reveal that (1) the bidirectional eco-compensation system is highly flexible and is viable economically, as the payment of fiscal expenditures used to pay eco-compensation is reasonable. (2) In the southern Jiangsu Province, the ratio of pollutant flux at each compensation site to the total regional flux is relatively high and may, therefore, accurately reflect the water quality condition of the main rivers flowing into the Taihu Lake. (3) The ratio of pollutant flux in the northern Jiangsu Province is low, which highlights the need for further improving the number and location of eco-compensation sites, as well as the compensation methods and standards.

The current pollution status and control technology of the Taihu Lake Basin, Jiangsu Province, China

2010 ◽  
Vol 67 (2) ◽  
pp. 195-205 ◽  
Author(s):  
Longmian Wang ◽  
Zheng Zheng ◽  
Xingzhang Luo ◽  
Jibiao Zhang
Keyword(s):  
Taihu Lake ◽  
Jiangsu Province ◽  
Lake Basin ◽  
Control Technology ◽  
Taihu Lake Basin ◽  
Pollution Status ◽  
And Control

scholarly journals Water Quality Evaluation Method Based on a T-S Fuzzy Neural Network—Application in Water Environment Trend Analysis of Taihu Lake Basin

Water ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3127
Author(s):  
Wei Ye ◽  
Wei Song ◽  
Chen-Feng Cui ◽  
Jia-Hao Wen
Keyword(s):  
Neural Network ◽  
Water Quality ◽  
Fuzzy Neural Network ◽  
Evaluation Method ◽  
Taihu Lake ◽  
Water Environment ◽  
Lake Basin ◽  
Neural Network Models ◽  
Taihu Lake Basin ◽  
Fuzzy Neural

In response to the problems of large computational volume and tedious computational process of fuzzy integrated evaluation, and general neural network models without clear water quality training criteria, this paper organically combines fuzzy rules, affiliation function, and neural network, and proposes a comprehensive method for the evaluation of water quality based on a T-S fuzzy neural network. On the three water quality monitoring data of six national key monitoring stations in Taihu Lake Basin, three evaluation methods—the one-factor evaluation method, the fuzzy integrated evaluation method, and the T-S fuzzy neural network evaluation method—were used to comprehensively evaluate water environment quality, and the results showed that the T-S fuzzy neural network method has the advantages of convenient calculation, strong applicability, and scientific results.

scholarly journals An Analytical Approach for Initial Allocation of Discharge Permits with Consideration of the Water Environmental Capacity and Industrial Technical Feasibility

2021 ◽  
Vol 13 (24) ◽  
pp. 13743
Author(s):  
Bo Peng ◽  
Kun Lei
Keyword(s):  
Industrial Structure ◽  
Water Environment ◽  
Control Unit ◽  
Analytical Framework ◽  
Environmental Capacity ◽  
Technical Feasibility ◽  
Initial Allocation ◽  
Environment Quality ◽  
Control Units ◽  
Comparison Of The Results

The tradable discharge permit is an efficient marketing twist to deal with negative externality of water pollution, and initial allocation discharge permits (IADP) is a tough prerequisite for a health tradable discharge permit system. However, the allocation rules focusing on both water environment quality attainment and economic-technical feasibility have not been achieved. Therefore, a three-tier analytical framework including control units, industries, and enterprises has been established for satisfying the requirements of water environment quality attainment and technical feasibility. The framework includes three calculation modules and one justification module. A case study of the framework is carried out in the Changzhou City of Taihu Lake, China. Through comparison of the results of industry IADP, the technology-based initial allocation discharge permits scheme in control unit 7 is adopted as the final initial allocation discharge permits scheme, and the reduction plan chemical industry is carried out in control unit 8; finally, the initial allocation discharge permits results after reduction are employed as the final initial allocation discharge permits scheme. This three-tier analytical framework could ensure environmental protection, equality, efficiency, and make the scheme be more acceptable for enterprise stakeholders. In addition, it could support for optimization of industrial layouts and industrial structure upgrading to some degree.

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