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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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摘要

Water use and wastewater management is becoming a focus for many industries around Australia andrnthe rest of the world. Good quality water is increasingly being recognised as a precious resource, andrnregulations on the bulk storage and discharge of waste streams is becoming more stringent in order tornprotect the environment, existing water reserves and the communities that use these resources.rnComponents such as heavy metals, arsenic, cyanide, and sulfate from acid mine drainage are somernthat occur at mining and metallurgical processing sites. Removal of such components can allow safernre-use of these streams, reducing the new water requirements of the process, or else allowingrnacceptable discharge to the environment. Re-use or discharge of treated water eliminates or reducesrnthe risk associated with storage of large volumes of contaminated water on site.rnTechnologies where a contaminant is selectively precipitated and removed as a sludge are used forrnmany of these treatments. Selection of the best treatment option for wastewater must depend on whatrnis suitable to each site, and consider not only the nature of the contaminant, but also other aspects,rnincluding the location and situation of the site, local regulations, cost of reagents, the sensitivity of thernlocal environment and waste sludge disposal options. To outline how an effective and economicalrnsolution can be designed and delivered, this paper will present a case study for the removal of arsenicrnfrom a site wastewater, from assessment of the problem, selection of suitable technology, design andrnimplementation, to the benefits delivered to the site.
机译：用水和废水管理正成为澳大利亚以及世界其他地区许多行业关注的焦点。高质量的水越来越被认为是一种宝贵的资源，对废物流的大量存储和排放的管制越来越严格，以保护环境，现有的水储量和使用这些资源的社区。rn重金属，砷等成分酸性矿山排水中的氰化物和硫酸盐会在采矿和冶金加工现场发生。除去这些成分可以安全地重新利用这些物流，从而减少了工艺中对水的新需求，或者允许向环境中排放不可接受的水。重复使用或排放处理过的水可消除或减少与在现场存储大量受污染水有关的风险。在这些处理方法中，使用了将污染物选择性地沉淀并去除为污泥的技术。废水最佳处理方案的选择必须取决于每个场所的实际情况，不仅要考虑污染物的性质，还要考虑其他方面，包括场所的位置和情况，当地法规，试剂成本，敏感性当地环境和废物污泥处置方案。为了概述如何设计和交付有效且经济的解决方案，本文将提供一个案例研究，用于从现场废水中去除砷，从问题评估，选择合适的技术，设计和实施到交付现场的收益。

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  • 会议地点 Perth(AU)
  • 作者

    A Salokannel; L M Nevatalo; M Martikainen; T van der Meer; J McCulloch;

  • 作者单位

    Outotec Industrial Water Treatment, PO Box 86, Espoo FI-02201, Finland. Email: antti.salokannel@outotec.com;

    Outotec Industrial Water Treatment, Outotec Research Center, PO Box 69, Pori FI-28101, Finland. Email: laura.nevatalo@outotec.com;

    Outotec Industrial Water Treatment, PO Box 86, Espoo FI-02201, Finland. Email: mika.martikainen@outotec.com;

    Outotec Industrial Water Treatment, PO Box 86, Espoo FI-02201, Finland. Email: Tuomas.van.der.meer@outotec.com;

    Industrial Water Treatment Outotec South East Asia Pacific, Outotec Pty Ltd, 28 Rodborough Road, Frenchs Forest NSW 2086. Email: Jennifer.Mcculloch@outotec.com;

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