...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Environmental Engineering >Impacts of High-Strength Boat Waste on Activated Sludge Processes
【24h】

Impacts of High-Strength Boat Waste on Activated Sludge Processes

机译：高强度船废物对活性污泥工艺的影响

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

Decisions to accept side-stream wastes at municipal wastewater treatment facilities require knowledge about potential impacts on plant operations. Among potential waste streams, coastal communities are increasingly asked to accept boat waste (sometimes termed boat sewage). Boat waste is black water (water from toilets) from recreational boats and yachts. Efforts to decrease the discharge of boat waste directly into natural waters have resulted in increased requests to wastewater treatment plants located near boat-waste pump-out facilities to accept this waste stream. In this study, boat waste is characterized from pump-out facilities on the Salish Sea (located in the northwest corner of Washington State, USA). Impacts on activated sludge function of shock loading up to 10% boat-waste volumes were evaluated. Measured concentrations showed boat waste to contain 60x the ammonia, 10x the chemical oxygen demand (COD), 20x the reactive phosphorus, 15x the salinity, and 7x the total suspended solids (TSS) of typical sewered wastewater. When added to activated sludge, boat waste often increased oxygen uptake rates, settleability, and foaming. These responses were primarily linked to boat-waste strength, although deodorants added by boat owners were also implicated. Quadrupole time-of-flight liquid chromatography mass spectrometry (LC/Q ToF-MS) was used to compare organic compounds within boat waste and three common deodorant products. These results documented that shock-loading boat waste can create conditions leading to treatment upset and that results differ between sources of activated sludge. Continued research is required to evaluate the potential for adaptation of activated sludge microbial communities to boat-waste impacts, including high-nitrogen ammonia loadings.
机译：在市政污水处理设施接受侧溪废物的决定需要了解对植物业务的潜在影响。在潜在的废物流中，越来越多地要求沿海社区接受船舶废物（有时被称为船污水）。船用废物是来自休闲船和游艇的黑水（来自厕所）。将船舶废物排放直接进入天然水域的努力导致了在船舶废物泵出设施附近的废水处理设备提高要求接受这种废物流。在这项研究中，船用废物的特点是轧机的泵出设施（位于美国华盛顿州西北角）。评估对冲击负荷的活性污泥功能的影响，可评估高达10％的船舶废物体积。测量浓度显示船废物含有60倍的氨，化学需氧量（COD），20倍的反应性磷，15倍的盐度和7倍的典型污水废水的总悬浮固体（TS）。当添加到活性污泥中时，船舶废物通常增加氧气吸收率，可沉降性和发泡。这些反应主要与船舶废物强度相关联，尽管船主添加的除臭剂也涉及。四极其飞行时间液相色谱法质谱（LC / Q TOF-MS）用于比较船废物和三种常见除臭产品内的有机化合物。这些结果记录了冲击装载船废物可以产生导致治疗不适的条件，并且导致活性污泥的源区之间存在差异。需要持续的研究来评估活性污泥微生物间群体适应船舶废物冲击的可能性，包括高氮氨载荷。

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