Discussion on the application of the concept of environmental protection and energy saving in the design of building water supply and drainage

With the current,our country social economy rapid development,people's living standard and quality of life and therefore have got improved,at the same time,it is the concept of environmental protection and energy saving is also enhanced value,many fields in our country environmental protection and energysaving concept can be seen in the application,especially the application in building water supply and drainage design more widely,to protect the environment,to maximize the use of limited resources,how to reasonable use of water resources in building water supply and drainage construction,above is current the paper mainly discusses the problems in the construction field,this paper based on environmental protection and energy-saving concept,discusses its application in the building water supply and drainage design,for your reference.

Energy Saving,Environmental Protection:Top Priority in China's Development——Exclusive interview with Dr.Yonglong L,Secretary-general,Chinese Committee for SCOPE(Scientific Committee on Problems of the Environment/ICSU).

Energy saving,emission reduction and economic development are major issues China has to meet in building a harmonious society.On one hand,China should pursue a sustainable,fast and sound economic development,on the other hand,she should try to decrease the overuse of energy resources and the environ- mental problems caused by the rapid economic growth. In this regard,on June 24,the Standing Committee of National People's Congress deliberated the draft of Energy Saving Law,according to which China is to take"resources saving"as a basic national policy.This is a key issue to the long-term benefits of China.With relevant questions,China's Foreign Trade interviewed Dr, Yonglong L(?),Secretary-general,Chinese Committee for SCOPE(Scientific Committee on Problems of the Environment/ICSU).and Research Professor at the Chinese Academy of Sciences. Let's listen to Dr.L(?)'s comments with wisdom.

The Low-Carbon and Environmental Protection of Textile and Garment in China

It should be transformed from the extensive development in the past to the new normal form of environmentally friendly pattern of “save energy, lower consumption and less pollution” in the Textile and Garment. For the pollution problem in China’s textile and garment industry, the author particularly analyzes the pollution of the textile and garment industry mainly occurred in the process of textile and clothing production and sales in this article. Finally, the author puts forward detail measure to control the pollution from the two aspects and advocates the concept of low-carbon environmental protection and green lifestyle. The low-carbon environmental protection has become a phenomenon in Textile and Apparel.

The Impact of Optimum Insulation Thickness of External Walls to Energy Saving and Emissions of CO2 and SO2 for Turkey Different Climate Regions

In this study, the optimum insulation thickness of the external walls of the housing and it’s energy saving and environmental impact in the provinces—Ardahan, Aydin, Eskisehir and Samsun—located in four different climate regions of Turkey was calculated for the expanded polystyrene and polyurethane insulation materials. Natural gas and coal were selected as fuels. Ardahan in the coldest climate region and Aydin in the hottest climate region, for the coal and optimum thickness of expanded polystyrene and polyurethane insulation materials, the reduction of CO2 and SO2 emissions. In the study, the relations between annual energy cost saving and insulation thickness are given. The value of energy cost saving increases up to optimum insulation thickness and beyond this level, the energy cost saving is decreased. For coal and optimum thickness of expanded polystyrene and polyurethane insulation materials, the energy cost savings was higher for the cold climate regions when it was compared with the hot climate regions.

Numerical Simulation and Experimental Characterization of Clay Paste under Loads for Energy Saving in Clay Materials Processing

Requirements for the respect of the environment encourage to reduce the impact of human activity on the nature. Civil engineering answers these requirements by the development of ecological construction materials. This paper deals with the transformation of clay raw materials which enable the processing of environmentally friendly construction materials: in addition to their biodegradability, the alveolar fired clay materials allow energy saving in home heating thanks to their thermal isolation properties. But their manufacturing is a high energy consumption process, in particular during compaction, drying and firing which contribute to the emission of greenhouse gases. The goal of this paper is to study the rheology of clay pastes in order to develop low energy in manufacturing processes. For this purpose, theoretical and experimental approaches were carried out on six clay varieties. In the theoretical approach, a finite element (FE) simulation model has been developed for pressing a non-rigid material predicting deformations and stresses occurring within the clay structure. Experiments have then been carried out to validate the finite element modelling. In this experimental approach, the clay pastes were transformed with water content respecting the Atterberg limits which determine the plasticity of clays. The samples compaction has been carried out under variable loadings in order to determine the suitable low energy consumption loading.

The role of duckweed in bio-liquid fuel production and environmental protection

With the world economic development,population growth and improvement of people's living standard,the energy shortage has become the core issue of restricting the development of the world economy. China faces serious energy crisis and environmental problems,so the development of biofuels in China is vital. This paper introduces the advantages of duckweed for energy production,summarizes the research results of Chengdu Institute of Biology on duckweed,and provides the direction of its further study.

Development Trend of Energy and Key Points of Ecological Environment Protection in China's "14^(th) Five-Year Plan" Period

From the changes of total primary energy consumption and primary energy consumption structure,installed capacity and power generation of secondary energy(electricity),etc.,the development characteristics of China's energy structure in the"13^(th) Five-Year Plan"period was comprehensively studied.Combined with the complexity of the international situation,the diversification of the domestic energy system,the intelligence of the energy industry,etc.,the situation and challenges faced by China's energy development were deeply discussed in the four aspects of energy security,energy low-carbon transformation,energy system efficiency,and energy technology level.From the angle of ecological environment protection,the development of energy in the"14^(th) Five-Year Plan"period in China was analyzed,and some policies and measures were put forward.

The energy efficiency and environmental protection campaign demands policy incentives

The hottest topic now among Europe's automotive industry is CO2. The European Union has set the goal. By 2012, all Europe-based car makers would have to reduce the per car CO2 level to as low as 120-130g/km from the current 160g/km.

Electrospun Metal–Organic Framework Nanofiber Membranes for Energy Storage and Environmental Protection

Metal–organic frameworks(MOFs)are attractive in many fields due to their unique advantages.However,the practical applications of single MOF materials are limited.In recent years,a large number of MOF-based composites have been investigated to overcome the defects of single MOF materials to broaden the avenues for the practical applications of MOFs.Among them,MOF-based hybrid nanofiber membranes fabricated by electrospinning combine the advantages of polymer nanofibers and inorganic porous materials,receiving extensive attention and development in energy storage and environmental protection.This review systematically summarizes the recent progress of MOF-based hybrid nanofiber membranes prepared by electrospinning from the perspectives of preparation and application.Firstly,two main methods for preparing MOF/polymer nanofibrous membranes are discussed.Next,the applications of MOF/polymer nanofibrous membranes in energy storage and environmental protection are summarized at length.Finally,to fully tap the potential of MOF-based nanofiber membranes in more fields,the current challenges are proposed,and future research directions are discussed.

Environmental Protection Legislation on China's Energy Development and In-situ Conversion

China's poor energy development and in-situ conversion legislation, environment laws and energy laws lead to a severe environmental issue in energy source. This paper uses comparison and logical methods to discuss Chapter 4 of Energy Law (Draft for Soliciting Opinions). Energy development is taken as a separate chapter; in-situ energy conversion is added to energy processing and conversion, common features are summarized to form general provisions and other provisions. According to respective characteristics of system for total amount control of energy development, performance guarantee system, environmental trust fund system, energy retaining system and environmental lien system, incorporate them into energy development, in-situ energy conversion and energy processing and conversion, in the hope of solving China's shortage of supply for environmental protection laws on energy development and in-situ conversion, responding to times of environmental protection, and optimizing China's Energy Law.

Energy conservation and environment protection technologies of the blast furnace under resources deterioration conditions

In 2009,the pig iron output of China increased dramatically up to 543.75 Mt and was 15.87%higher than that in 2008,accounting for 60.53%of the world production.The processing of pig iron must consume huge amount of iron ores and coal and consequently leads to the shortage of ores and cokemaking coals supply,with prices soaring but quality worsening remarkably.How to maintain or even improve the efficiency of blast furnace production under negative conditions of constantly worsening resources of iron ore and coal has become an important scenario the Chinese ironmaking industry must face.In this paper,the production with high coal injection rate,low fuel rate and big productivity in the Wuhan Iron and Steel Corporation(Group) was introduced and revealed.The quantitative correlation between blast furnace production efficiency and diverse technical measures through combined mass-heat balances and gas-liquid counter-current flow dynamics analysis.Moreover,potential problems and countermeasures in ironmaking by feeding high Al_2O_3 and low grade iron ores were also discussed.

On the Development of China's Thermal Power in the 21st Century while Saving the Energy and Protecting the Environment

In light of China s Ninth Five-year Plan (1996-2000) for Electric Power Industry & the Long Term Targets by the Year 2010, the paper considers the strategy for developing China’s thermal power in the 21st century shall be the efficiency and cleaning technology of coal use. Especially important is the structure of power sources and configuration of technology process, and secondly the implementation of energy saving and environmental protection ideology in the various stages of thermal power construction and design work.

黑土地保护视角下黑龙江省畜禽养殖环境效应分析

为合理利用畜禽粪污资源,保护黑龙江省黑土地资源,优化农畜业生产布局,实现农牧业绿色发展,本研究基于2011—2020年统计数据及文献资料,测算了黑龙江省畜禽粪污排放情况,并据此分析黑龙江省畜禽粪污资源化利用潜力及畜禽养殖环境承载力。结果表明:从时间动态来看,2011—2020年,黑龙江省畜禽粪尿、粪尿养分、COD排放量均有小幅下降,降幅分别为3.68%、3.24%和5.82%;畜禽粪污的化肥替代潜力虽整体略有下降,但10年来均保持在35%以上,2020年化肥替代潜力已达到41.89%,具有较高的有机肥替代化肥潜力;黑龙江省畜禽粪污的能源潜力略有增长,但对煤炭的替代潜力呈下降趋势且替代作用并不显著,2020年畜禽粪污的沼气潜力为46.74亿m^(3),折合为标准煤仅占标准煤消费量的2.90%,能源潜力有待进一步开发利用;黑龙江省畜禽粪尿、粪尿氮、粪尿磷的耕地负荷均未超载,无养殖环境风险,畜禽养殖环境容量的空间剩余呈上升趋势,剩余约2/3,以氮为基准计算,余量为13006.13万头猪当量,以磷为基准计算,余量为8463.19万头猪当量,具有较大养殖潜力。从空间分布来看,黑龙江省各地区畜禽粪污排放及资源化利用潜力存在明显差异,哈尔滨市、齐齐哈尔市、绥化市、大庆市以及佳木斯市等畜禽养殖集聚区的畜禽粪尿资源丰富,畜禽粪污的替代化肥潜力、能源潜力及畜禽养殖发展潜力较大。

环境补贴能提升企业碳绩效吗--基于A股上市公司实证分析

环境补贴既是国家实现“双碳”目标的宏观调控手段,也是减轻企业环保负担、引导企业节能减排的推动力。选取2014~2019年接受环境补贴的1094家A股上市公司3735个观测值作为研究样本,采用双向固定效应模型,实证探究环境补贴对企业碳绩效的影响。研究表明,环境补贴与企业碳绩效显著正相关且具有滞后性特征,异质性检验发现,成立时间长的企业、国有企业、东部地区与中低污染企业环境补贴作用效果显著;进一步研究发现,环境补贴中的节能减排补贴与企业碳绩效显著正相关,环境治理补贴对企业碳绩效起负向作用。据此,提出环境补贴应以降碳为重点、减污降碳协同增效为目的等建议。

井口点火放空装置在天然气井处理中的绿色环保作用评价

天然气是清洁能源,其开发利用有助于减少酸雨形成,减缓地球温室效应,从根本上改善环境质量。天然气在冬季生产过程中,经常需要井口放空处理,如果直接将天然气排入大气中,则会造成环境污染;如果不进行放空,则不利于气井的正常处理,存在环境污染与气井管理的矛盾。针对这个问题,引入了井口点火放空橇,通过管线与气井井口采气树相连接,利用车载小型气液分离器将天然气进行气液分离,液体排入储液灌,天然气则在井口直接点火燃烧,有效避免了环境问题,又解决了气井的处理需求。井口点火放空橇体积小,以车载方式移动,施工时安装连接方便,两个小时内可完成施工作业,投入产出比为1.00∶4.34,推广应用前景广阔。

带式焙烧机配建200万吨磨矿生产线设计特点

介绍了某200万吨/a带式焙烧机球团磨矿生产线的设计特点。通过对原矿特性和球团生产需求的研究,确定采用先进的两段湿式闭路磨矿生产工艺,最终产品为粒度-200目以下≥95%,水分≤9%的赤铁精矿。设计过程中,集成应用了多项先进设备,如溢流型球磨机、立磨机、高效浓密机、快开板框压滤机等,并充分考虑了节能环保因素,生产能耗低,噪音污染小,无生产污水和固体废弃物外排。本工程的建成为带式焙烧机生产的原料供应提供了新的思路。

逐绿前行:政府绿色采购增进企业绿色治理研究

如何充分发挥市场型环境政策作用激发企业绿色治理动力,是当前完善国家环境治理体系、筑牢高质量发展绿色基底需解决的重要命题。本文根据节能产品与环境标志产品政府采购清单,手工采集清单内提及企业,基于观念治理、过程治理以及末端治理的三方视角,从理论和实证两个层面探讨政府绿色采购对企业绿色治理的影响。研究结果表明,进入政府绿色采购清单能够改善企业绿色治理表现,该结论在考虑潜在的内生性问题并经过一系列稳健性检验后依然成立。机制分析结果显示,政府绿色采购有助于强化企业环境治理意识、发挥绿色创新补偿以及激励环保设备投资,进而提升其绿色治理水平。横截面分析发现,政府绿色采购的微观绿色治理效应对重污染、严规制、强竞争和高科技行业更明显,且通过强制采购方式执行的政策激励效力高于优先采购。本文为全面理解政府绿色采购带来的环境经济效益提供了经验证据,对进一步完善政府绿色采购制度框架、提高环境治理综合质效具有启示意义。

公众环境关注是否促进减污降碳协同增效?——来自居民与企业的机制考察

在减污降碳亟须协同增效的背景下,探究公众环境关注的协同减污降碳成效与增效路径,有助于以多元共治的环境治理体系建设实现人与自然和谐共生的中国式现代化。基于2011—2021年中国277个地级以上城市数据,通过双向固定效应模型和两阶段最小二乘回归模型,评估公众环境关注的协同减污降碳治理成效,并验证了可能存在的作用机制。研究发现:公众环境关注显著促进了减污降碳协同治理增效,这一结论经过稳健性检验后依然成立;异质性分析发现,协同治理成效随城市规模扩大而持续削弱,资源城市的协同治理成效较非资源城市更为明显。机制分析发现,公众环境关注驱动了企业的绿色技术进步,以创新激励效应促进减污降碳协同增效;同时,公众环境关注培育了居民的绿色节能生活方式,以节能优化效应促进减污降碳协同增效。