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.

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

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.

轨道交通车辆车门系统生命周期环境效益评价

为了推动轨道交通车辆绿色制造的进程,以车门系统为研究对象,建立生命周期模型,构建环境效益评价指标体系,评价车门系统生命周期生产、运输、使用、废弃物处理阶段的主要环境影响,探究电力能源结构替代和焊接工艺变化对车门系统生命周期的环境影响。结果表明:车门系统生命周期不同阶段的环境影响从大到小的排序为生产阶段、废弃物处理阶段、使用阶段和运输阶段;环境影响评价指标从大到小依次为化石能源消耗潜值、温室气体排放潜值和环境酸化潜值;减少生产阶段和废弃物处理阶段的化石能源消耗和温室气体排放有助于产品生命周期环境效益提升;生产阶段中通过减少火电占比,优化电力结构,全球变暖潜值、化石能源消耗潜值和环境酸化潜值可分别降低38.96%、38.90%、38.86%;采用气体金属弧焊工艺替代保护性金属弧焊工艺,全球变暖潜值、化石能源消耗潜值和环境酸化潜值可分别降低64.71%、58.94%、59.85%。

环境水样及核电厂液态流出物中γ核素的快速富集方法研究

本文针对核电厂液态流出物排放的关键放射性核素进行了富集研究,制备了一种含六氰铁钴酸银钾和二氧化锰的复合型富集柱,通过实验研究了样品种类、流速、pH值、温度等因素对富集柱富集效率的影响,利用环境水样作为参考样品进行分析,结果良好。该方法可有效快速富集核电厂液态流出物中关键人工放射性核素,吸附效率可达90%以上,有效降低液态流出物中γ核素探测限;可缩短环境水样富集时间,适用于应急情况下环境水样监测。

Macro Impact of the Law on Prevention and Control of Atmospheric Pollution on Power Industry Development

The newly revised and enlarged main contents of the Law of Prevention and Control of Atmospheric Pollution are described, The macro impacts of the law on the power industry development are analyzed mainly in respects to power demand and readjustment of power structure and layout. clean production and pollution control level, scientific management of environmental protection, in accordance with law as well as changes of construction and operation costs. And finally, several questions worthy to be noted in course of implementation of the new law are enumerated.

新形势下生活垃圾焚烧发电厂环保管理

近十年来,我国的生态环境监管制度日趋严格,污染排放标准不断提高,环保“督察高压”步入常态化。生活垃圾发电企业作为重点排污单位,受到各级生态环境部门和社会各界重点环境监管关注,本文通过对现行生活垃圾发电行业环保政策进行解读,浅谈企业在环保管理过程中应关注重点和运行过程中难点,帮助垃圾发电行业可持续健康发展。

Green Input-Output Model for Power Company─Theoretical & Application Analysis

Based on the theory of marginal opportunity cost, one kind of green input-output table and models of power company are put forward in this paper. For an appliable purpose, analysis of integrated planning, cost analysis, pricing of the power company are also given.

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。

Research Reports on the 12^(th) Five-Year Plan for Electric Power Industry Equipment Manufacturing

China Electricity Council organized competent authorities across the industry of electric power to work out the "Research Reports on the 12 th Five-Year Plan for Electric Power Industry" in nearly one year, which provides a reference for governmental departments to formulate the 12 th Five-Year Plan on energy ad electric power industry. The magazine should publish the serial reports including power sources, power grids, equipment manufacture, energy and environment, and power economics. This paper presents the part of "equipment manufacturing," in which the strategies and targets of enhancing equipment manufacturing capability are put forward.