城市建筑立体绿化建设初探

由于城市人稠地少环境污染严重，城市中的人们渴望回到大自然的怀抱，本文通过阐述城市立体绿化的必要性、绿化的方法等来说明城市建筑立体绿化已成为人们走向森林走向绿色的重要途径之一。     

Urban garbage disposal and management in China

This paper, probing into the present situation of urban domestic garbage by analyzing its growing trend, compositional change and regional difference, reveals the problems existing in its disposul and management in China. Meanwhile, a questionnaire was conducted in five big cities around China for surveying urban residents‘ attitudes towards garbage disposal and management policies and measures. Results showed the outlmt of urban domestic garbage in Chinese cities is ever increasing, and the recoverable materials and energy in garbage composition are also increasing. The population growth, economic development, and increase of residents‘ expenditure level are the main factors influencing the growing output and changing composition of the garbage. Information acquired from the questionnaire showed that majority of the urban residentsare in favor d the garbage reduction policies and managerial measures and are willing to collaborate with municipal government in battling against gadbage. Based on the analysis and questionnaire, some policymaking-oriented suggestions such as operating the garbage disposal from a social welfare service to a sector of profit-gaining enterprises, transferring the garbage management from passive end control to active source control,promoting the classified garbage collection in cities around China, and charging garbage fees for its cleanup and disposal, have also been put forward in the paper.     

改良A2/O型氧化沟处理城市污水工程实例

介绍了重庆市童家溪区污水处理厂的工艺流程,及其各构筑物和主要设备的参数.该工艺采用改良A2/O型氧化沟处理城市污水,该工艺将A2/O与氧化沟相结合,具有两者的优点,且能耗省、脱N除P的特点,出水水质达到<城镇污水处理厂污染物排放标准>(GB18918-2002)中的一级标准的B标准.     

房地产开发项目环境影响评价有关问题探讨--以住宅小区建设项目为例

房地产开发项目的环境影响评价方法与污染型工业项目以及非污染生态影响型项目的评价方法均有所不同.本文以住宅小区建设项目环评为例,从评价标准的选择、评价重点和景观生态评价三个方面,对该类项目的环境影响评价方法和有关问题进行了探讨.     

城市生态环境质量评价指标体系

从生态学的角度建立了较完整的城市生态环境质量评价指标体系 ,并对沈阳城市生态环境质量进行了评价。通过评价结果表明 ,本指标体系是科学的、可行的 ,可以用于评价城市生态环境质量。     

北方城市垃圾的回收和利用

随着城市垃圾的迅速增长，垃圾污染问题异常尖锐突出，特别是北方城市尤为严重。本文围绕北方城市如何选择合适的垃圾处理技术进行探讨。提出现阶段在大中城市开展综合处理。在小城市采取以卫生填埋为主、堆肥为辅的处理技术，是解决城市垃圾问题的有效途径。     

成都市环境污染源初探

选择成都某工矿企业,以元素地球化学评价为主体,利用X荧光分析方法对表层土、深层土、煤渣、煤灰、浮尘样的4个重金属元素进行定量分析,初步进行工矿企业周边生态环境评价,进而评价工矿企业对成都市环境的影响状况。研究结果表明,工矿企业燃媒是影响城市环境的一个主要污染源。     

Relationship between urban eco-environment and competitiveness with the background of globalization: Statistical explanation based on industry type newly classified with environment demand and environment pressure

Within the global urban system, the statistical relationship between urban eco-environment(UE) and urban competitiveness(UC)(RUEC) is researched. Data showed that there is a statistically inverted-U relationship between UE and UC. Eco-environmental factor is put into the classification of industries, and gets six industrial types by two indexes viz. industries‘ eco-environmental demand and pressure. The statistical results showed that there is a strong relationship, for new industdal classification, between the changes of industrial structure and evolvement of UE. The drive mechanism of the evolvement of urban eco-environment, with human demand and global work division was analyzed. The conclusion is that the development stratege, industrial policies of cities, and environmental policies fo cities must be fit with their ranks among the global urban system. At the era of globalization, so far as the environmental policies, their rationality could not be assessed with the level of strictness, but it can enhance cities‘ competitiveness when they are fit with cities‘ capabilities to attract and control some sections of the industry‘s value-chain. None but these kinds of environmental DOlicies can probably enhance the UC.     

硅藻土处理城市生活污水技术试验研究

DWP-158硅藻纯土污水处理装置基建投资仅为240元/m^3污水，占地面积仅为0.12m^2/m^3污水，运行成本为0.26元/m^3污水，悬乳物、CODcr、BOD5、总氮的去除率分别为99%、72%、83%，39%。除磷效率高达96%，比目前城市污水处理厂普遍采用的生化处理技术的除磷效果好得多。     

日本处理城市生活垃圾的做法及启示

随着我国城市化进程的加快，城市生活垃圾的排出量急剧增加，造成环境污染问题日益严重。垃圾不但影响城市景观，传播疾病，而且还破坏环境，浪费资源。本文通过介绍日本处理城市生活垃圾的做法和效果，比较我国处理城市生活垃圾的现状，提出我国应发挥政府职能作用，加强对国民的环保宣传和教育，建立垃圾分类制度、细化标准，创新垃圾回收处理技术，鼓励和扶持垃圾回收产业体系等建议。