...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemosphere >An analysis of the chemical safety of secondary effluent for reuse purposes and the requirement for advanced treatment
【24h】

An analysis of the chemical safety of secondary effluent for reuse purposes and the requirement for advanced treatment

机译：用于二次利用的二次废水的化学安全性和高级处理要求的分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a study on the chemical safety of the secondary effluent for reuse purposes and the requirement of advanced treatment. Water quality analysis was conducted regarding conventional chemical items, hazardous metals, trace organics and endocrine disrupting chemicals (EDCs). Generally speaking, the turbidity, COD, BOD, TN and TP of the secondary effluent can meet the Chinese standards for urban miscellaneous water reuse but higher colour is a problem. Further removal of BOD and TP may still be required if the water is reused for landscape and environmental purposes especially relating to recreation. In addition, Hazardous metals, trace organics and endocrine disrupting chemicals (EDCs) are not the main problems for water reuse. At the same time, several tertiary treatment processes were evaluated. The coagulation-filtration process is effective process for further improvement of the conventional water quality items and removal of hazardous metals but less effective in dealing with dissolved organic matter. The ultrafiltration (UF) can achieve almost complete removal of turbid matter while its ability to remove dissolved substances is limited. The ozone-biofiltration is the most effective for colour and organic removal but it can hardly remove the residual hazardous metals. Therefore, the selection of suitable process for different water quality is important for water use.
机译：本文对二次废水的化学安全性进行了研究，以供重复利用，并要求进行深度处理。对常规化学物品，有害金属，微量有机物和破坏内分泌的化学物质（EDC）进行了水质分析。一般而言，二级废水的浊度，COD，BOD，TN和TP可以满足中国城市杂水回用的中国标准，但较高的色度是一个问题。如果将水重新用于景观和环境目的，尤其是与娱乐有关，则仍需要进一步去除BOD和TP。另外，有害金属，微量有机物和破坏内分泌的化学物质（EDC）并不是水回用的主要问题。同时，对几种三级处理工艺进行了评估。凝结过滤过程是进一步改善常规水质和去除有害金属的有效过程，但对溶解有机物的处理效果较差。超滤（UF）几乎可以完全去除浑浊的物质，而去除溶解物质的能力有限。臭氧生物过滤对去除颜色和有机物最有效，但几乎无法去除残留的有害金属。因此，对于不同的水质选择合适的工艺对于用水非常重要。

著录项

  • 来源
    《Chemosphere》 |2013年第4期|558-562|共5页
  • 作者

    Pengkang Jin; Xin Jin; Xiaochang C. Wang; Xinbin Shi;

  • 作者单位

    School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, China;

    School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, China;

    School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, China;

    School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    secondary effluent; water reuse; chemical safety; advanced treatment; endocrine disrupting chemical;

    机译：二级废水;中水回用;化学安全性;先进的治疗;内分泌干​​扰物;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号