Increasing the Efficiency and Level of Environmental Safety of Pro-Environmental City Heat Supply Technologies by Low Power Nuclear Plants

In connection with the current prospect of decarbonization of coal energy through the use of small nuclear power plants (SNPPs) at existing TPPs as heat sources for heat supply to municipal heating networks, there is a technological need to improve heat supply schemes to increase their environmental friendliness and efficiency. The paper proves the feasibility of using the heat-feeding mode of ASHPs for urban heat supply by heating the network water with steam taken from the turbine. The ratio of electric and thermal power of a “nuclear” combined heat and power plant is given. The advantage of using a heat pump, which provides twice as much electrical power with the same heat output, is established. Taking into account that heat in these modes is supplied with different potential, the energy efficiency was used to compare these options. To increase the heat supply capacity, a scheme with the use of a high-pressure heater in the backpressure mode and with the heating of network water with hot steam was proposed. Heat supply from ASHPs is efficient and environmentally friendly even in the case of significant remoteness of heat consumers.

Practice and Thinking on Current Planning Environmental Impact Assessment of Transmission and Transformation Power Grid in Jiangsu Province

The planning environmental impact assessment （EIA） of transmission and transformation power grid at levels of 500 and 220 kV had been finished completely in the 13 municipalities of Jiangsu Province by the end of 2012, which played important roles in guiding and planning the following transmission and transformation projects in environmental protection. In this paper, through the detail analysis on the objective and significance of the planning EIA of transmission and transformation power grid, legal basis and planning EIA practices, some suggestions and thinking about the planning EIA of transmission and transformation power grid were put forward.

Radiological monitoring results of the ambient environment around Qinshan Nuclear Power Plant

A plan of surveillance monitoring Qinshan Nuclear Power Plant (QNPP) has been implemented since 1992, the objective of which is to establish the database of environmental radiation information around QNPP, and to detect any unplanned discharge of radioactive materials from QNPP. This paper presents the monitoring results for radionuclide concentrations in the environmental matrices before and after QNPP operation. The radionuclide con- centrations in vegetation, food, atmosphere, soil and littoral soil samples have been determined. After operation of QNPP, the mean values of 137Cs, Sr and H in water are 0.6, 4.9 mBq/L and 1.7 Bq/L, respectively; the mean values 90 3 of137Cs in soil and littoral soil are 3.5 and 2.7 Bq/kg, respectively; the mean values of137Cs in rice, green cabbage, meat, mullet, milk and tea are 0.033, 0.039, 0.081, 0.069, 0.018 and 0.62 Bq/kg, respectively; the mean values of 90 Sr in rice, green cabbage and tea are 0.081, 0.315 and 4.1 Bq/kg, respectively; gross β activity in fallout is 0.9 Bq·m-2·d-1. Compared with the data before QNPP’s operation, no significant difference has heen observed in the radioactivity of137Cs, Sr, H and the gross β activity in ambient environmental matrices from 1992 to 2001, and 90 3 there are only some fluctuations within the range of background.

Medium-term and Long-term Environmental Economic Policies on Thermal Power Industry in China Seen from the New Environment Protection Law

In the newly revised Environmental Protection Law of the People's Republic of China that has been implemented since January 1,2015,there is a lot of emphasis on environmental economic policies. In this paper,according to the current situation of environmental pollution and protection in thermal power industry,it is proposed that based on the new environmental protection law,it is needed to study various environmental economic policies on thermal power industry and analyze the effects on environmental cost of thermal power enterprises at the macro level. At the micro level,it is necessary to control environmental cost of thermal power enterprises effectively,and establish a suitable environmental management system for environmental economic policies including environmental cost accounting and trading of emission rights,thereby improving environmental management level of thermal power enterprises.

Re-understanding and Thinking about Environmental Impact of Coal-fired Power Plants under Ultra-low Emission

From the perspective of development background,concepts and related policies of ultra-low emission,according to work practice,some issues and difficulties that need to be paid attention to in the environmental impact assessment of ultra-low-emission thermal power projects were discussed from the aspects of evaluation criteria,evaluation grade and scope,pollution control technical lines,environmental benefit accounting,and total emission control,and corresponding recommendations were put forward.

Radioactivity level of the ambient environment of Anren bone-coal power station

The radioactivity level of the ambient environment of Anren Bone-coal Power Station (BCPS) was investigated systematically. The γ radiation dose rate level in the environment, the content of 238U and 226Ra in the ambient soil and the farmland in the direction of downwind, the concentrations of 238U. 232Th. 226Ra 40K and 222Rn as well as α potential energy in air, and the concentrations of natural U and Th in effluent are all higher than the corresponding values of the reference site. The additional annual effective dose equivalent to the residents living in the houses made of bone-coal cinder brick is 2.7 mSv.

Environmental Challenges to Thermal Power Construction

Environmental protection challenges thermal power construction from respects of the reform of investment system, main industrial policies and plant site selection in China. Pollution control of thermal power plants is analyzed from the angles of increasingly stringent laws, regulations and standards as well as approval procedures of thermal power projects. The paper points out emphatically that the plant site selection of a thermal power project must satisfy various requirements of rules and regulations, development programme and environmental functions, etc. Different criteria of dust, SO2, NOx and other pollutants control are enumerated specially.

Landscape Visual Environment Impact Analysis of Wind Power Project in Plain Region--Case in One Wind Power Farm Project of Zhanjiang

The construction of wind power project is conducive to saving energy,reducing emissions and regulating energy structure. But it inevitably causes some impacts on the environment in the construction process. Because that the height of wind power generator generally exceeds 100 m,and visual range in plain region is farther,it is necessary to scientifically and rationally evaluate and analyze landscape visual environment impact of wind power generator in plain region. One wind power farm project of Zhanjiang is located in typical plain region of Guangdong coast. Referring to traditional analytic method of landscape visual impact and comparing with actual situation for the same kind of project in the region,results show that it is ＂ extremely sensitive＂ area at 0- 2. 5 km from wind power generator, ＂ very sensitive＂ area at 2. 5- 5. 0 km, ＂ sensitive＂ area at 5- 10 km, ＂generally sensitive＂ area at 10- 20 km,and non-sensitive area outside 20 km.

Problems of Environmental Acceptance Tests on Power Transmission and Transformation Projects

Based on the experience of environmental acceptance tests for power transmission projects, the problems found in acceptance tests and the system shortcomings of acceptance test itself are analyzed. Recommendations are provided to improve the future work.

Introduction to School of Environmental Science and Engineering of North China Electric Power University

Along with the fast development of national economy, environmental issues have become more and more prominent. China has promulgated a series of policies of energy-saving and emission-reduction to

燃烧热测定实验的课程思政设计——农林废弃物的热值测定

燃烧热测定是一个经典的物理化学实验。本案例将燃烧热测定与农林废弃物燃烧发电对接,对实验内容进行了适当调整,让学生了解燃烧热测定对保障发电厂安全运行的重要意义,以及农林废弃物燃烧发电对服务“三农”、乡村振兴和“双碳”战略的重要意义,提高了学生学以致用的能力,激发了学生的学习兴趣,引导学生关心国家能源安全、环境保护、可持续发展和人民的生命健康,对提升学生的能力和素质发挥了良好作用。

Scientific Development of Power Sector Led by Plan EIA in a New Environmental Protection Situation

Environmental problems like haze have brought great pressure to current environmental protection management. On the one hand, plan EIA should be promoted further in all industries; on the other hand, the current achievements and methods of plan EIA should be summarized and innovated. And the EIA supervision and project access can be improved further through the coordination between plan EIA and project EIA. In this study, from the three levels of plan EIA policy framework, five problems of plan EIA in power sector were analyzed according to the current situation of plan EIA in power sector. Based on the present achievements, five macroscopic suggestions were proposed from the view of innovation accord- ing to the new environmental protection situation and requirements at present.

考虑双碳目标的新型火力发电企业环境效率测度

我国提出了“双碳目标”以改善生态环境、实现可持续发展。火力发电行业无疑是促进节能减排的重要领域,有必要对其环境效率进行测度。从传统火力发电企业定义出发提出新型火力发电企业概念,构建考虑碳排放的环境效率评价体系,采用USSBM模型和GML指数从静态和动态两角度对15家新型火力发电企业2017—2021年度环境效率进行评估。结果表明,新型火力发电行业环境效率处于较高水平但仍有一定的进步空间,以双碳目标的提出为节点,多数样本企业环境效率改善速度有所提升且其驱动力渐由技术效率转变为技术进步。