电石法制PVC废水零排放的探讨

发布时间：2018-07-12 14:41

本文选题：电石法 + 废水处理　；参考：《北方环境》2013年01期

【摘要】：我国有极为丰富的石灰石、煤等稳定可靠的资源,使得电石法生产PVC的生产成本远低于石油乙烯法,所以电石法在国内聚氯乙烯市场中仍占主导地位。近些年,内蒙古自治区经济呈迅猛发展态势,其中氯碱行业的发展也极为迅速。我区氯碱企业集中在西部地区,西部属于缺水地区,随着PVC产量的不断增加,用排水量也随着大量增长,如不采用废水零排放工艺将会加剧水资源短缺形势,给环境治理造成巨大负担,严重阻碍电石行业可持续发展,最终造成恶性循环。因此,从科学发展、循环经济以及资源的重复利用的角度出发,研究和推广电石法制PVC的废水零排放工艺势在必行,具有十分重要的现实意义和长远意义,能够推动电石法生产PVC能够走上可持续发展的道路。
[Abstract]:There are abundant limestone, coal and other stable and reliable resources in China, which makes the production cost of PVC produced by calcium carbide process much lower than that by petroleum ethylene process, so calcium carbide method still dominates the domestic PVC market. In recent years, the economy of Inner Mongolia Autonomous region is developing rapidly, and the chlor-alkali industry is also developing rapidly. The chlor-alkali enterprises in our region are concentrated in the western region, which belongs to the region of water shortage. With the increase of PVC production, the amount of water used and discharged will also increase. If the zero discharge process of waste water is not adopted, the situation of water resources shortage will be aggravated. It creates a huge burden on environmental control, seriously hinders the sustainable development of calcium carbide industry, and finally creates a vicious circle. Therefore, from the point of view of scientific development, recycling economy and reuse of resources, it is imperative to study and popularize the zero discharge process of PVC wastewater from calcium carbide, which is of great practical and long-term significance. Can promote calcium carbide production of PVC on the road of sustainable development.
【作者单位】：内蒙古自治区环境科学研究院;
【分类号】：X783.2

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