河南省工业排水特征及影响因素

工业排水特征是标识工业用水非期望产出的重要指标,分析区域工业排水分布及其影响因素对提高区域工业用水效率具有重要指导意义。根据2011年全国第一次水利普查结果,分析了河南省工业用水及排水状况,以及工业排水量的地区分布特征,探讨了河南省各地市工业排水量地区差异的影响因素。结果表明,河南省用水大户及非用水大户企业中均以除入河排污和管网排污以外的其他排水方式为主,但用水大户排放的污水量中入河排污量最大,非用水大户排放的污水量中,管网排放污水量最大;河南省排水方式及排水量组成结构在空间分布上也存在较大差异,主要与各地市的工业总产值、水资源禀赋及工业用水量差异较大密切相关,而工业结构对排水量的地区差异特征影响相对较小。

Characteristics and influence factors of industrial drainage in Henan Province

Industrial water drainage characteristics are an important indicator of undesirable output of industrial water. The analysis of the regional industrial water drainage distribution and its influence factors has important guiding significance to the improvement of regional industrial water utilization efficiency. Based on the first national water survey results in 2011, this paper analyzed the situation of industrial water utilization and drainage in Henan Province, the regional distribution characteristics of industrial drainage quantity, the regional differences in industrial drainage quantity across the major cities in Henan, and its influence factors. In conclusion, most major water consumers and most non-major water consumers in Henan use other drainage methods than drainage into rivers and drainage into pipelines, but most of the sewage water drained by major water consumers is into rivers, and most of the sewage water drained by non-major water consumers is into pipelines. There are also great spatial differences in the industrial water drainage methods and quantity across Henan Province. This is closely related to the differences between the cities in industrial output, water resource abundance, and industrial water consumption. But the industrial structure has little influence on the regional differences in drainage quantity.