Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the...Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the reforms along with three well-acknowledged components, including EIA legislation, administration, and process. Then, evaluate the reformed EIA system against revised Ahmad and Wood’s criteria. The results demonstrate that the revised laws and regulations are more stringent than the old versions. The EIA process is simplified, and its coordination with the pollutant discharge permit system is promoted. The interim and post-event supervision is currently more robust and the penalties are more severe than before. However, the hierarchical position of the Environmental Protection Law is not high enough and the coordination of different government departments is still challenging. In summary, despite the problems occurring at the initial phase of reforms, the effectiveness of the EIA system has largely been improved.展开更多
Green manufacturing is a mode to realize environmental friendliness by considering the environmental impact and energy consumption in manufacturing process.In order to make an environmental friendly assessment for man...Green manufacturing is a mode to realize environmental friendliness by considering the environmental impact and energy consumption in manufacturing process.In order to make an environmental friendly assessment for manufacturing process,a multi-criteria decision making( MCDM) model combined with fuzzy analytic hierarchy process( FAHP) and fuzzy technique for order preference by similarity to ideal solution( FTOPSIS) is proposed in this work.The environmental and resource criteria and manufacturing process objects are identified as the first step.Then,the weights of the criteria are calculated by FAHP.Finally,based on experts' evaluation using fuzzy words,the manufacturing process objects are ranked by FTOPSIS.The proposed methodology is applied to a gear shaft manufacturing.The sensitivity analysis and comparisons are implemented to prove its robustness and effectiveness for the ecofriendly assessment for process objects.展开更多
Cement industrial emissions account for 32% of air pollution in Cambodia. With that in mind, we examined the environmental impact of Cambodia’s cement industry and identified ways that it could reduce air pollution. ...Cement industrial emissions account for 32% of air pollution in Cambodia. With that in mind, we examined the environmental impact of Cambodia’s cement industry and identified ways that it could reduce air pollution. The study focused on raw material extraction and preparation, calcination, and cement preparation. Data for the life-cycle inventory were provided by the Kampot Cement Plant. Air emissions were assessed using EMEP/EEA and IPCC criteria, and the impact assessment used ReCiPe (2016). The baseline analysis revealed that calcination contributed the most air pollutants, so mitigation scenarios focused on alternative fuels only during the calcination stage of cement production: 1) 100% coal (S1);2) 93% coal and 7% biomass (S2);3) 85% coal and 15% biomass (S3);4) 70% coal and 30% biomass (S4);and 5) 50% coal and 50% biomass (S5). The results demonstrated that certain mitigation measures reduced major emissions and environmental damage. S5 had the best results, reducing CO<sub>2</sub> by 49.97, NOx by 2.233, and SO<sub>2</sub> by 49.333%;however, it increased PM<sub>2.5</sub> by 19.60% and total heavy metal (Pb, Cd, Hg, As, Cr, Cu, Ni, Se, Zn) output by 28.113%. The results of the study showed reductions in serious health and environmental effects associated with climate change of 48.83%, ozone generation of 9.62%, and particulate matter formation of 28.80%. However, carcinogenic and non-carcinogenic human toxicity increased by 35.66%. Therefore, such mitigation effect would be benefit to carbon reduction target in Cambodia.展开更多
This article provides a comparative overview of environmental impact assessment (EIA) in Mozambique, Tanzania, Kenya, South Africa, Angola, and the European Union (EU). EIA “systemic measure” and “foundation measur...This article provides a comparative overview of environmental impact assessment (EIA) in Mozambique, Tanzania, Kenya, South Africa, Angola, and the European Union (EU). EIA “systemic measure” and “foundation measure” criteria are used to evaluate and compare the performance of each system. In contrast to the EU, EIA must be carried out by registered experts in the African countries. In Tanzania, Mozambique and South Africa public consultation is mandatory during scoping. In Kenya and Tanzania the EIA study should contain measures to prevent health hazards, to ensure employee safety, and for emergency management. EIA system monitoring is required in Kenya, Tanzania, Mozambique, and in the EU, but not in South Africa and Angola. Financial issues, insufficient qualified personnel, and an increasing number of EIA applications undermine the capacity of competent authorities to adequately monitor these EIA systems. Consequently, training programmes increase effectiveness of EIA implementation is a common request. The African countries reviewed here have adopted EIA and integrated EIA systems into public policy despite the constraints they face. As they continue to gain experience in EIA and to revise their EIA systems, they are moving towards a more flexible system with greater public involvement and robust arrangements and practices.展开更多
The life cycle assessment was employed to evaluate the environmental impacts of three farming systems(indoor intensive, semi-intensive and extensive systems) of sea cucumber living near Qingdao, China, which can effec...The life cycle assessment was employed to evaluate the environmental impacts of three farming systems(indoor intensive, semi-intensive and extensive systems) of sea cucumber living near Qingdao, China, which can effectively overcome the interference of inaccurate background parameters caused by the diversity of economic level and environment in different regions. Six indicators entailing global warming potential(1.86 E + 04, 3.45 E + 03, 2.36 E + 02), eutrophication potential(6.65 E + 01,-1.24 E + 02,-1.65 E + 02), acidification potential(1.93 E + 02, 4.33 E + 01, 1.30 E + 00), photochemical oxidant formation potential(2.35E-01, 5.46E-02, 2.53E-03), human toxicity potential(2.47 E + 00, 6.08E-01, 4.91 E + 00) and energy use(3.36 E + 05, 1.27 E + 04, 1.48 E + 03) were introduced in the current study. It was found that all environmental indicators in the indoor intensive farming system were much higher than those in semi-intensive and extensive farming systems because of the dominant role of energy input, while energy input also contributed as the leading cause factor for most of the indicators in the semi-intensive farming system. Yet in the extensive farming system, infrastructure materials played a major role. Through a comprehensive comparison of the three farming systems, it was concluded that income per unit area of indoor intensive farming system was much higher than those of semi-intensive and extensive farming systems. However, the extensive farming system was the most sustainable one. Moreover, adequate measures were proposed, respectively, to improve the environmental sustainability of each farming system in the present study.展开更多
The sustainability of the coking industry is supported by reasonable production profit and environmental quality requirements.The traditional measures substantially increased the related costs for enterprises to reach...The sustainability of the coking industry is supported by reasonable production profit and environmental quality requirements.The traditional measures substantially increased the related costs for enterprises to reach standards.This paper aims to develop a comprehensive cost combined environmental impact assessment method that is necessary for the analysis of wastewater treatment systems.Typical three coking wastewater treatment processes in China were evaluated.Results showed that eutrophication dominantly contributed to the overall environmental effect.Improving effluent quality could significantly reduce the total environmental impact.In terms of an economic perspective,the price of raw materials was the main factor that affected the operating cost of comprehensive treatment.Based on subsystem analysis,the pretreatment stage accounted for the majority of environmental and cost burdens,respectively reaching 64%-78%and 64%-86%.Optimizing the pretreatment process by enhancing the efficiency of high concentration raw material recovery and substituting toxic raw materials for extractant could reduce the environmental impact and economic cost by 43.8%and 57%,respectively,which was an effective way to improve the potential performance of coking wastewater treatment plants(WWTPs).展开更多
文摘Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the reforms along with three well-acknowledged components, including EIA legislation, administration, and process. Then, evaluate the reformed EIA system against revised Ahmad and Wood’s criteria. The results demonstrate that the revised laws and regulations are more stringent than the old versions. The EIA process is simplified, and its coordination with the pollutant discharge permit system is promoted. The interim and post-event supervision is currently more robust and the penalties are more severe than before. However, the hierarchical position of the Environmental Protection Law is not high enough and the coordination of different government departments is still challenging. In summary, despite the problems occurring at the initial phase of reforms, the effectiveness of the EIA system has largely been improved.
基金National Natural Science Foundation of China(No.51475459)the Priority Academic Program Development of Jiangsu Higher Education Institutions of China(No.PAPD)
文摘Green manufacturing is a mode to realize environmental friendliness by considering the environmental impact and energy consumption in manufacturing process.In order to make an environmental friendly assessment for manufacturing process,a multi-criteria decision making( MCDM) model combined with fuzzy analytic hierarchy process( FAHP) and fuzzy technique for order preference by similarity to ideal solution( FTOPSIS) is proposed in this work.The environmental and resource criteria and manufacturing process objects are identified as the first step.Then,the weights of the criteria are calculated by FAHP.Finally,based on experts' evaluation using fuzzy words,the manufacturing process objects are ranked by FTOPSIS.The proposed methodology is applied to a gear shaft manufacturing.The sensitivity analysis and comparisons are implemented to prove its robustness and effectiveness for the ecofriendly assessment for process objects.
文摘Cement industrial emissions account for 32% of air pollution in Cambodia. With that in mind, we examined the environmental impact of Cambodia’s cement industry and identified ways that it could reduce air pollution. The study focused on raw material extraction and preparation, calcination, and cement preparation. Data for the life-cycle inventory were provided by the Kampot Cement Plant. Air emissions were assessed using EMEP/EEA and IPCC criteria, and the impact assessment used ReCiPe (2016). The baseline analysis revealed that calcination contributed the most air pollutants, so mitigation scenarios focused on alternative fuels only during the calcination stage of cement production: 1) 100% coal (S1);2) 93% coal and 7% biomass (S2);3) 85% coal and 15% biomass (S3);4) 70% coal and 30% biomass (S4);and 5) 50% coal and 50% biomass (S5). The results demonstrated that certain mitigation measures reduced major emissions and environmental damage. S5 had the best results, reducing CO<sub>2</sub> by 49.97, NOx by 2.233, and SO<sub>2</sub> by 49.333%;however, it increased PM<sub>2.5</sub> by 19.60% and total heavy metal (Pb, Cd, Hg, As, Cr, Cu, Ni, Se, Zn) output by 28.113%. The results of the study showed reductions in serious health and environmental effects associated with climate change of 48.83%, ozone generation of 9.62%, and particulate matter formation of 28.80%. However, carcinogenic and non-carcinogenic human toxicity increased by 35.66%. Therefore, such mitigation effect would be benefit to carbon reduction target in Cambodia.
文摘This article provides a comparative overview of environmental impact assessment (EIA) in Mozambique, Tanzania, Kenya, South Africa, Angola, and the European Union (EU). EIA “systemic measure” and “foundation measure” criteria are used to evaluate and compare the performance of each system. In contrast to the EU, EIA must be carried out by registered experts in the African countries. In Tanzania, Mozambique and South Africa public consultation is mandatory during scoping. In Kenya and Tanzania the EIA study should contain measures to prevent health hazards, to ensure employee safety, and for emergency management. EIA system monitoring is required in Kenya, Tanzania, Mozambique, and in the EU, but not in South Africa and Angola. Financial issues, insufficient qualified personnel, and an increasing number of EIA applications undermine the capacity of competent authorities to adequately monitor these EIA systems. Consequently, training programmes increase effectiveness of EIA implementation is a common request. The African countries reviewed here have adopted EIA and integrated EIA systems into public policy despite the constraints they face. As they continue to gain experience in EIA and to revise their EIA systems, they are moving towards a more flexible system with greater public involvement and robust arrangements and practices.
基金supported by the National Key R&D Program(2011BAD13B03)the National Marine Public Welfare Project of China(200905020)
文摘The life cycle assessment was employed to evaluate the environmental impacts of three farming systems(indoor intensive, semi-intensive and extensive systems) of sea cucumber living near Qingdao, China, which can effectively overcome the interference of inaccurate background parameters caused by the diversity of economic level and environment in different regions. Six indicators entailing global warming potential(1.86 E + 04, 3.45 E + 03, 2.36 E + 02), eutrophication potential(6.65 E + 01,-1.24 E + 02,-1.65 E + 02), acidification potential(1.93 E + 02, 4.33 E + 01, 1.30 E + 00), photochemical oxidant formation potential(2.35E-01, 5.46E-02, 2.53E-03), human toxicity potential(2.47 E + 00, 6.08E-01, 4.91 E + 00) and energy use(3.36 E + 05, 1.27 E + 04, 1.48 E + 03) were introduced in the current study. It was found that all environmental indicators in the indoor intensive farming system were much higher than those in semi-intensive and extensive farming systems because of the dominant role of energy input, while energy input also contributed as the leading cause factor for most of the indicators in the semi-intensive farming system. Yet in the extensive farming system, infrastructure materials played a major role. Through a comprehensive comparison of the three farming systems, it was concluded that income per unit area of indoor intensive farming system was much higher than those of semi-intensive and extensive farming systems. However, the extensive farming system was the most sustainable one. Moreover, adequate measures were proposed, respectively, to improve the environmental sustainability of each farming system in the present study.
基金funding by the National Natural Science Foundation of China(No.51978643)Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA21021102)+2 种基金14th Five-year Informatization Plan of Chinese Academy of Sciences,Construction of Scientific Data Center System(WX145XQ07-12)Youth Innovation Promotion Association,CAS(Y201814)the National Youth Talent Support Program of China
文摘The sustainability of the coking industry is supported by reasonable production profit and environmental quality requirements.The traditional measures substantially increased the related costs for enterprises to reach standards.This paper aims to develop a comprehensive cost combined environmental impact assessment method that is necessary for the analysis of wastewater treatment systems.Typical three coking wastewater treatment processes in China were evaluated.Results showed that eutrophication dominantly contributed to the overall environmental effect.Improving effluent quality could significantly reduce the total environmental impact.In terms of an economic perspective,the price of raw materials was the main factor that affected the operating cost of comprehensive treatment.Based on subsystem analysis,the pretreatment stage accounted for the majority of environmental and cost burdens,respectively reaching 64%-78%and 64%-86%.Optimizing the pretreatment process by enhancing the efficiency of high concentration raw material recovery and substituting toxic raw materials for extractant could reduce the environmental impact and economic cost by 43.8%and 57%,respectively,which was an effective way to improve the potential performance of coking wastewater treatment plants(WWTPs).