A SEM Water Pollutants Emissions Reduction Optimization Model for Pollutant Total Amount Control in a Region

2012 ◽  
Vol 610-613 ◽  
pp. 1579-1582 ◽  
Author(s):  
Jing Ya Wen ◽  
Yan Hu ◽  
Zhao Sun ◽  
Zhuang Li ◽  
Yu Li
Keyword(s):  
Water Pollution ◽  
Optimization Model ◽  
Emission Reduction ◽  
Technical Support ◽  
Emissions Reduction ◽  
Environment Protection ◽  
Validity And Reliability ◽  
Total Amount Control ◽  
Regional Water

On account of severe water pollution condition, this paper combines structure emissions reduction, engineering emissions reduction and management emissions reduction (namely SEM emissions reduction), builds an optimization model for total amount control of regional water pollution, and puts the above model into practice to validate its validity and reliability. According to the case study, the emission reduction of COD and NH3-N are 43.94 and 7.09 (104 tons), respectively. The optimal total costs of reduction is 36.89 (billion yuan), which decreases 7.47% than the existed recommended scheme (39.87 billion yuan). This method can be used for providing technical support and thus achieves the 12th Five-year goals of the environment protection plan more effectively.

An Interval-Fuzzy Emissions Reduction Optimization Model for Regional Water Pollutant Total Amount Control

2013 ◽  
Vol 316-317 ◽  
pp. 497-500
Author(s):  
Zhuang Li ◽  
Jing Ya Wen ◽  
Ze Sen Wang ◽  
Zhao Sun ◽  
Yu Li
Keyword(s):  
Water Pollution ◽  
Optimization Model ◽  
Fuzzy Linear Programming ◽  
Hunan Province ◽  
Emissions Reduction ◽  
Environment Protection ◽  
Validity And Reliability ◽  
Total Amount Control ◽  
Water Pollutant ◽  
Regional Water

Combining environment policies of structure emissions reduction, engineering emissions reduction and management emissions reduction, this paper uses an interval-fuzzy linear programming and builds an optimization model for total amount control of regional water pollution, on account of severe water pollution condition. The developed model is applied to a case of Hunan Province to validate its validity and reliability. The optimal result demonstrated that the emission reduction of COD and NH3-N are [43.39, 47.57] and [7.05, 7.64] (104 tons), and the optimal total costs of reduction is [35.11, 37.35] (billion yuan), which decreases 6.32~11.20% than the existed recommended scheme (39.87 billion yuan). This method can be used for providing technical support and thus achieves the 12th Five-year goals of the environment protection plan more effectively.

A Selection Optimization Model of Water Pollution Emission Reduction Measures in Refining and Chemical Enterprises

2014 ◽  
Vol 472 ◽  
pp. 840-844
Author(s):  
Xing Chun Li ◽  
Jing Ya Wen ◽  
Jiang Long ◽  
Xian Yuan Du ◽  
Yu Li
Keyword(s):  
Water Pollution ◽  
Optimization Model ◽  
Emission Reduction ◽  
Pollution Reduction ◽  
Sulfur Recovery ◽  
Validity And Reliability ◽  
Maximum Emission ◽  
Pollution Emission ◽  
Recovery Unit

On account of severe water pollution condition, this paper combines refinery and chemical enterprises pollution reduction and linear programming method, builds a selection optimization model of water pollution emission reduction measures in refining and chemical enterprises, and puts the above model into practice to validate its validity and reliability. According to the case study, the maximum emission reductions of COD and NH3-N for refining and chemical enterprises was 6481.50 and 549.51tons, which has improved 29.63% and 9.90% compared with the target reductions, respectively. The optimal emission reduction scheme is choosing MycelxTMtechnology, and COD has installed on the Delay catalytic unit, while NH3-N has installed on the Sulfur recovery unit. This model could provide not only the maximum emission reduction and optimal scheme, but also the decision support of emission reduction for refinery and chemical enterprises during "the 12thFive-Year Plan".

An Interval Optimization Model of Regional Pollutant Total Amount Control Based on a SEM Total Control Evaluation Index System

2012 ◽  
Vol 599 ◽  
pp. 472-475
Author(s):  
Jing Ya Wen ◽  
Yan Hu ◽  
Zhao Sun ◽  
Zhuang Li ◽  
Yu Li
Keyword(s):  
Optimization Model ◽  
Index System ◽  
Emission Reduction ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Emissions Reduction ◽  
Interval Optimization ◽  
Total Amount Control ◽  
Total Control ◽  
Control Evaluation

Facing serious environmental forms and combining structure, engineering and management emissions reduction (SEM), this paper had drew up a SEM total control evaluation index system, and built an interval optimization model of regional pollution total amount control which minimized the emission reduction costs. Through the application of model case, the interval optimal model had obtained a reasonable scheme. The minimum total costs of emission reduction was [461.51, 531.19] (108 yuan), decreasing -1.75%~11.59% comparing with the recommended scheme (522.03, 108 yuan), while the maximum emissions reduction of COD, NH3-N, SO2 and NOX were [42.58, 48.32], [6.92, 7.80], [30.72, 34.96], and [23.21, 26.78] (104 tons). The interval optimal result provides policymakers an excellent decision, expands the range of macro-decisions and controls countermeasures for pollutant total amount control program.

Emission Reduction Potential Optimization Model on Refinery and Chemical Enterprises for Atmospheric Pollutants Total Amount Control

2014 ◽  
Vol 472 ◽  
pp. 904-908 ◽  
Author(s):  
Xing Chun Li ◽  
Jing Ya Wen ◽  
Jiang Long ◽  
Xian Yuan Du ◽  
Yu Li
Keyword(s):  
Optimization Model ◽  
Emission Reduction ◽  
Reduction Potential ◽  
High Energy ◽  
Atmospheric Pollutants ◽  
Management Policy ◽  
Pollutant Emission ◽  
Emission Reduction Potential ◽  
Total Amount Control ◽  
High Pollution

Aiming at the harsh environmental situation at present, refinery and chemical enterprises in China are mostly of high energy consumption and high pollution enterprises, which have great emission reduction potential of atmospheric pollutants. Based on SO2and NOx produced by refinery and chemical enterprises, the emission reduction potential optimization model is established by using linear programming method, and combined environmental management policy about total amount control of atmospheric pollutants. Through the model results, the maximum pollutant emission reduction of SO2and NOx predicted through the model were 4810.69 and 1574.04 (tons), and the optimum technical schemes have been given, respectively. This model could provide not only the maximum emission reduction of the existing projects and enterprises, but also the decision support of emission reduction for refinery and chemical enterprises during "the 12thFive Year Plan".

scholarly journals Optimization model of electrification ratio using solar photovoltaic: case study in Kupang Regency

2018 ◽  
Author(s):  
Rusman Sinaga
Keyword(s):  
Rural Communities ◽  
Optimization Model ◽  
Emission Reduction ◽  
Co2 Emission ◽  
Electrical Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Co2 Emission Reduction ◽  
Ratio Optimization

The Electrification ratio in Indonesia is 89.10%, which means there are 7, 245,728 of 66, 489,400 households don’t have access to Electrical Energy Sources (EES). Kupang Regency is one of the Regency in Indonesia which has a low electrification ratio. 29,542 of 78,109 households haven't access to EES spread over 29 villages (electrification ratio of 62%). Solar Photovoltaic in Kupang Regency 5 MWp capacity has been operating but directly connected (On-Grid) to the State Electricity Company (PLN), it is not able to help rural communities that are difficulties to reach due to its geographical conditions. The aim of this research was design the electrification ratio optimization model with the consideration of CO2 emission reduction using Solar Photovoltaic. The method of research using dynamic modeling approach. The result of the research shows that electrification ratio can be achieved optimum estimated in 2020-2021 if the addition of capable power each year 4,000 kW. The addition of capable power 2,000 kW/year, can reach the optimum electrification ratio in 2023-2024 and if the addition of capable power is only 1,000 kW/year, the optimum electrification ratio can be achieved in 2030-2031. Diversification of DPG into Solar PV can reduce CO2 emissions by 98.8%.

Pengaruh Motivasi, Self Awareness Dan Komunikasi terhadap Disiplin Kerja Karyawan di Perusahaan Daerah Air Minum (Pdam) Kabupaten Ponorogo

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Fitriana Fitriana ◽  
Umi Farida ◽  
Tegoeh Hari Abrianto
Keyword(s):  
Regression Analysis ◽  
Data Analysis ◽  
Water Supply ◽  
Regression Coefficient ◽  
Reliability Test ◽  
Self Awareness ◽  
Validity And Reliability ◽  
Communication Variable ◽  
Water Supply Company ◽  
Regional Water

This study aims to determine the effect of motivation, self awareness and communication on the work discipline of employees in the Regional Water Supply Company (PDAM) of Ponorogo Regency. The location of research in Pramuka Street Number 21, Nologaten, Ponorogo Regency. The population in this study was 102 employees. The sample in this study used 50 respondents. Data collection techniques using questionnaires, then tested with validity and reliability test, while the method of data analysis using multiple regression analysis with the help of SPSS and hypothesis testing partially or simultaneously. The results showed that; (1) Motivation partially influences the work discipline of employees in the Regional Water Supply Company (PDAM) of Ponorogo Regency with a regression coefficient of 0.317, t value of 2.903> t table of 2.012 and sig. of 0.006 <0.05, (2) Self Awareness partially influences the work discipline of employees in the Regional Water Supply Company (PDAM) of Ponorogo Regency with the results of the regression coefficient of 0.409, t value of 3.478> t table of 2.012 and sig. of 0.001 <0.05, (3) Communication partially influences the work discipline of employees in the Regional Water Supply Company (PDAM) of Ponorogo Regency with the results of a regression coefficient of 0.310, t value of 2.178> t table of 2.012 and sig. of 0.035 <0.05, (4) Motivation, self awareness and communication simultaneously affect employee work discipline in the Regional Water Supply Company (PDAM) of Ponorogo Regency with the calculated F value of 14.807> F table 2.81 and sig value. of 0,000 <0.05, (5) Self awareness is the most dominant variable affecting the work discipline of employees in the Regional Water Supply Company (PDAM) of Ponorogo Regency with the result of self awareness variable t value of 3.478 is greater than the value of t variable count motivation and communication variables. Furthermore, from the value of sig. the variable self awareness of 0.001 is smaller than the value of sig. motivation variable and communication variable.

scholarly journals Canada as a Case Study for Balanced Presentation to Address Controversy on Emission Reduction Policies

2021 ◽  
Vol 13 (14) ◽  
pp. 7909
Author(s):  
Robert V. Parsons
Keyword(s):  
Emission Reduction ◽  
Environmental Issues ◽  
Trade Show ◽  
Quantitative Metrics ◽  
Carbon Taxation ◽  
Canadian Provinces ◽  
Method Analysis ◽  
A Current

Controversy is common on environmental issues, with carbon taxation in Canada a current example. This paper uses Canada as a case study for analysis based around balanced presentation, a technique developed some time ago, yet largely forgotten. Using the method, analysis is shifted away from the point of controversy to a broader quantitative question, with comparative data employed from official government sources. Simple quantitative analysis is applied to evaluate emission trends of individual Canadian provinces, with quantitative metrics to identify and confirm the application of relevant emission reduction policies by individual jurisdictions. From 2005 through 2019, three provinces show consistent downward emission trends, two show consistent upward trends, and the remaining five have no trends, showing relatively “flat” profiles. The results clarify, in terms of diverse emission reduction policies, where successes have occurred, and where deficiencies or ambiguities have existed. Neither carbon taxation nor related cap-and-trade show any association with long-term reductions in overall emissions. One policy does stand out as being associated with long-term reductions, namely grid decarbonization. The results suggest a possible need within Canada to rethink emission reduction policies. The method may be relevant as a model for other countries to consider as well.

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