Characteristics and influence factors of industrial drainage in Henan Province
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Abstract:
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.
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