...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>American Journal of Analytical Chemistry >Commercial Laundry Water Characterisation
【24h】

Commercial Laundry Water Characterisation

机译：商业洗衣水特性

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Surfactants are the major active ingredients of laundry detergents. Therefore, special attention should be focused on the treatment and disposal of laundry wastewater. The aim of this study was to characterise the wastewater from a commercial laundry over 30 days. Physicochemical analyses were performed, monitoring the content of nitrogen, phosphate, heavy metals, linear alkylbenzene sulphonate (LAS), volatile organic acids and alcohols. The pH was approximately 5.6 and the COD approximately 4800 mg·L－1. The average concentrations of sulphate, sulphide, N-ammoniacal organic nitrogen compounds and heavy metals were below the maximum limit, in accordance with local and national environmental legislation, and the average total suspended solids was 0.08 g·L－1. Among the metals analysed, iron was observed with the highest concentrations (0.037 mg·L－1 and 0.72 mg·L－1). Phosphate was detected in 93% of samples (94.65 mg·L－1 average). LAS was detected in all samples (12.24 mg·L－1 to 1023.7 mg·L－1). Thirty-three different xenobiotic organic compounds were identified in the laundry wastewater with the qualitative screening. The major groups of the compounds were fragrances, preservatives, solvents and some surfactants. Although the characterisation indicated low values for many parameters, this does not eliminate the need for specific treatment before its disposal at the sewage system.
机译：表面活性剂是洗衣粉的主要活性成分。因此，应特别注意洗衣废水的处理和处置。这项研究的目的是对30天内商业洗衣店的废水进行表征。进行了理化分析，监测了氮，磷酸盐，重金属，直链烷基苯磺酸盐（LAS），挥发性有机酸和醇的含量。 pH约为5.6，COD约为4800 mg·L－1。根据当地和国家环境法规，硫酸盐，硫化物，N-氨有机氮化合物和重金属的平均浓度低于最大限值，平均总悬浮固体为0.08 g·L－1。在所分析的金属中，铁的含量最高（0.037 mg·L-1和0.72 mg·L-1）。 93％的样品中检出了磷酸盐（平均94.65 mg·L-1）。所有样品（12.24 mg·L－1至1023.7 mg·L－1）中均检测到LAS。通过定性筛选，在洗衣废水中鉴定出33种不同的异生有机化合物。化合物的主要类别是香料，防腐剂，溶剂和一些表面活性剂。尽管表征表明许多参数的值较低，但这并不能消除在污水处理系统中进行处理之前需要进行特殊处理的必要。

著录项

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