孔雀绿体系流动注射光度法测定水中正磷酸盐

建立了流动注射-孔雀绿-磷钼杂多酸分光光度法测定水中痕量正磷酸盐的方法.优化了试验条件,方法在0 mg/L～0.3 00mg/L线性良好,检出限为0.002 mg/L,准确度和精密度均符合要求,而且快速简便,适用于地表水、地下水、饮用水等清洁水体中正磷酸盐的测定.     

导数同步荧光法测定绿藻叶绿素a浓度

建立了绿藻中叶绿素a的导数同步荧光检测法。该方法快速、简便,不需要复杂的前处理。叶绿素a的线性范围为0.02～125μg/L,检出限为0.25μg/L,回收率为97.0%～103.8%。     

Evaluation of alternative water sources for commercial buildings: A case study in Brisbane,Australia

Commercial buildings are central to cities and contribute significantly to the urban demand for natural resources, including freshwater. Green building benchmarking tools include more efficient water use as key indicator of sustainability. This paper explores options for substituting mains drinking water with an alternative, non-potable water source on a fit for purpose basis. The research findings are based on a monitoring study of a commercial building in Brisbane, Australia that is harvesting rainwater for meeting non-potable water demand. The results demonstrated that the system is only achieving moderate reliability in meeting demand due to operational problems. The case study analysis has highlighted the need to include validation and monitoring to ensure the system is operating as per design intent. The paper also investigates the potential of other local, non-potable water sources for high-rise commercial buildings, in particular air conditioning condensate and groundwater inflow to a basement wet well. The paper concludes by comparing the advantages and disadvantages of different local water sources which highlights the need to undertake a site specific investigation to identify a suitable alternative water source, which considers O&M complexity and the capacity of facilities management.     

A suggestion for Korean resource productivity management policy with calculating and analyzing its national resource productivity

In this study, we suggested a criterion of Korean resource productivity calculation method including its range which is not generalized yet and analyzed its level by reviewing the resource productivity management policies and study trends of the major advanced countries. The material flow indexes that are widely used in major advanced countries, such as the domestic material consumption (DMC), were used to establish the resource productivity calculation method with estimation the domestic resource productivity during 2000–2010. As of 2010, the DMC was 590 million ton, GDP was 1 trillion dollars and DMC-based resource productivity was 1.75 thousand US dollars/ton, which was continuously increased during last ten years with 8.0%, 50.0%, and 38.9%, respectively. This increase tendency was not because of DMC reduction through resource management but because of just large GDP increase. The results of the comparison with other countries indicated that Korea had the lower resource productivity level and also the lower increasing rate than major advanced countries such as the UK and Japan, and required an efficient resource management plan for improvement. Therefore, we finally suggested a Korean resource productivity policy direction to construct its sustainable system for its improvement.     

Strategies and measures for implementing eco-labelling schemes in Singapore's construction industry

The issue of sustainability in the construction industry is very prominent, as the industry often causes adverse impacts on the environment through its use of large amounts of natural resources and by clearing large areas of their natural habitats. After the 1992 Earth Summit in Rio de Janeiro proposed the use of eco-labels to attain sustainable development, the growth and use of eco-labelling schemes have increased significantly. This study focuses on eco-labelling schemes, particularly the Singapore Green Labelling Scheme (SGLS) and the Singapore Green Building Product Certification Scheme (SGBPCS), and their contributions to the Singapore construction industry. The effectiveness of the schemes and of their drivers is determined through the analysis of survey results from two groups of samples (suppliers and architects) and interviews with some of the key stakeholders involved. It can be observed that the both the supplier and architect groups have some knowledge and awareness of eco-labelling schemes in the Singapore context. However, in terms of implementation, both schemes are only moderately effective in advocating the use and production of eco-labelled building products. It was also found that, out of several factors, “environmental rating” appears to be the only one that significantly influences the decision to use eco-labelled schemes. Furthermore, the results show that SGBPCS was not as heavily promoted in the architect group as in the supplier group. The architects perceived the SGBC advertisements to be less convincing than did the suppliers, and therefore they considered the SGBC's measures to promote the use of eco-labelled materials to be less effective. From the empirical results, strategies and measures are proposed for industry stakeholders to enhance the effectiveness of the eco-labelling schemes in the construction industry.