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Technology Selection for Removal of Contaminants from an Industrial Wastewater

机译：从工业废水中去除污染物的技术选择

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Water use and wastewater management is becoming a focus for many industries around Australia and the rest of the world. Good quality water is increasingly being recognised as a precious resource, and regulations on the bulk storage and discharge of waste streams is becoming more stringent in order to protect the environment, existing water reserves and the communities that use these resources. Components such as heavy metals, arsenic, cyanide, and sulfate from acid mine drainage are some that occur at mining and metallurgical processing sites. Removal of such components can allow safe re-use of these streams, reducing the new water requirements of the process, or else allowing acceptable discharge to the environment. Re-use or discharge of treated water eliminates or reduces the risk associated with storage of large volumes of contaminated water on site. Technologies where a contaminant is selectively precipitated and removed as a sludge are used for many of these treatments. Selection of the best treatment option for wastewater must depend on what is suitable to each site, and consider not only the nature of the contaminant, but also other aspects, including the location and situation of the site, local regulations, cost of reagents, the sensitivity of the local environment and waste sludge disposal options. To outline how an effective and economical solution can be designed and delivered, this paper will present a case study for the removal of arsenic from a site wastewater, from assessment of the problem, selection of suitable technology, design and implementation, to the benefits delivered to the site.
机译：水使用和废水管理正在成为澳大利亚及世界其他地区的许多行业的重点。优质的水越来越多地被认为是一种珍贵的资源，并且对散装储存和废物流排放的法规正在变得更加严格，以保护环境，现有的水储量和使用这些资源的社区。来自酸性矿泉排水的重金属，砷，氰化物和硫酸盐等组分是在采矿和冶金加工位点发生的一些。去除这些部件可以允许安全重复使用这些流，从而降低了该过程的新的水需求，或者允许允许对环境的可接受的放电。处理过的水的再使用或排出的水消除或减少现场储存大量受污染水的风险。作为污泥选择性地沉淀并除去污染物的技术用于许多这些处理。选择废水的最佳治疗选择必须依赖于每个网站的适合，并且不仅考虑污染物的性质，而且考虑其他方面，包括现场的位置和情况，当地法规，试剂的成本，本地环境的敏感性和废弃污泥处置选择。概述如何设计和交付有效和经济的解决方案，本文将出示一种案例研究，用于从场地废水中除去砷，从评估问题，选择合适的技术，设计和实施，达到所提供的福利到网站。

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