Environmental emissions by Chinese industry: Exergy-based unifying assessment
Environmental emissions by Chinese industry: Exergy-based unifying assessment
复制标题
DOI：
10.1016/j.enpol.2012.02.060
复制
发表时间：
2012-06
期刊：
影响因子：
9
通讯作者：
Bo Zhang;Guoqian Chen;X. Xia;S. C. Li;Zhanming Chen;Xi Ji
中科院分区：
文献类型：
--
作者：
Bo Zhang;Guoqian Chen;X. Xia;S. C. Li;Zhanming Chen;Xi Ji
以化学火用作为排放与环境化学偏差的客观衡量标准，对1997-2006年中国工业主要环境排放COD、氨氮、SO2、烟尘、粉尘、NOx、固体废物等进行统一评估，2006年重点关注行业和区域层面。2006年火用排放总量为274.1PJ，占67.7% 估计来自废气，29.9%来自废水，2.4%来自固体废物。 40个行业中的5个和30个地区中的12个分别占总排放量的72.7%和65.5%。 SO2是9个行业、25个地区的主要排放类型，COD是另外28个行业、5个地区的主要排放类型。确定了电力、热力生产和供应、纸及纸制品制造等污染密集行业以及广西、宁夏等西部和内陆地区排放强度较高的地区。通过以排放强度和燃煤使用为变量的聚类和不相交主成分分析，提取了三个主成分，并在部门和区域分析中确定了四个具有统计显着性的聚类。解决了相应的政策制定影响。
Based on chemical exergy as an objective measure for the chemical deviation between the emission and the environment, a unifying assessment is carried out for major environmental emissions covering COD, ammonia nitrogen, SO2, soot, dust, NOxand solid waste by Chinese industry over 1997–2006, with emphasis on the sectoral and regional levels in 2006. Of the total emission in exergy up to 274.1PJ in 2006, 67.7% is estimated from waste gases, 29.9% from waste water and 2.4% from solid waste. Five of 40 sectors and 12 of 30 regions are responsible for 72.7% and 65.5% of the total emission, respectively. SO2is the leading emission type in 9 sectors and 25 regions, and COD in another 28 sectors and 5 regions. Some pollution-intensive sectors such as Production and Distribution of Electric Power and Heat Power and Manufacture of Paper and Paper Products, and western and inland regions such as Guangxi and Ningxia with high emission intensities are identified. By clustering and disjoint principal component analysis with intensities of emissions and fuel coal use as variables, three principal components are extracted, and four statistically significant clusters are pinpointed in the sectoral and regional analysis. Corresponding policy-making implications are addressed.