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首页> 外文OA文献 >Development of an integrated approach to understanding, managing and designing strategies and recycled organics filtration treatment system to control regional heavy metal contamination of stormwater.
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Development of an integrated approach to understanding, managing and designing strategies and recycled organics filtration treatment system to control regional heavy metal contamination of stormwater.

机译：开发一种用于理解，管理和设计策略的综合方法，以及可回收的有机物过滤处理系统，以控制区域性重金属对雨水的污染。

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Urban stormwater runoff is recognised as a substantial source of heavy metal contamination, which adversely impacts on water quality of regional receiving waterways. Conventional treatment of urban runoff mostly involves a filtration system using sand to retain particulate matters. Sand provides limited sorption of dissolved metals and the inclusion of commercial sorbents to these treatment systems is not cost effective due to the concentration of dissolved metals in the runoff. Recycled organic materials are by-products or waste from industrial or agricultural operations, and could be alternative low cost sorbents for stormwater treatment systems. The use of recycled sorbents also provides added value to the waste materials and reduces landfill disposal. The research explores the application of compost, zeolite, ash, and recyclable waste in urban runoff treatment, especially for dissolved metal removal. The research combines the two aspects of experimental studies and management analysis to develop a holistic approach to heavy metal control in urban stormwater systems. Experimental results of batch sorption test show that compost is suitable for removing dissolve copper in stormwater treatment. The comparison of the different mixing ratios between compost and glass beads in column test evaluates the optimum mixing sorbent and performance over a long period for copper removal. Substance Flow Analysis (SFA) of copper has been performed in the Upper Parramatta River Catchment, Sydney to identify the sources of copper associated with runoff, effect of using waste material such as compost in urban stormwater treatment and the copper load in urban stormwater runoff. This case study shows the relationship between copper input, copper stock, sorbent type and urban stormwater quality control in the system boundary of the catchment. Different scenarios of source control are evaluated to control copper load from the different sources. Source control focusing on roads and vehicles is the most effective copper control strategy. The combination of source control and stormwater treatment reduces copper in stormwater and receiving water. The thesis applies the analysis from SFA and experimental results to derive both a regional system-wide solution with source control, and an improved design of stormwater treatment for heavy metal removal using recycled organics.
机译：城市雨水径流被认为是重金属污染的主要来源，这会对区域接收水道的水质产生不利影响。城市径流的常规处理主要涉及使用沙子保留颗粒物的过滤系统。沙子对溶解金属的吸附作用有限，并且由于径流中溶解金属的浓度，向这些处理系统中添加商业吸附剂的成本效益不高。回收的有机材料是工业或农业生产过程中产生的副产品或废物，可以用作雨水处理系统的低成本替代吸附剂。回收吸附剂的使用还为废料增加了价值，并减少了垃圾掩埋处置。该研究探索了堆肥，沸石，灰分和可回收废物在城市径流处理中的应用，尤其是在去除溶解金属方面。该研究结合了实验研究和管理分析两个方面，以开发一种整体方法来控制城市雨水系统中的重金属。分批吸附试验的实验结果表明，堆肥适合去除雨水处理中的可溶性铜。柱测试中堆肥和玻璃珠之间不同混合比的比较评估了最佳的混合吸附剂和长期去除铜的性能。在悉尼的上帕拉马塔河集水区进行了铜的物质流分析（SFA），以确定与径流有关的铜的来源，在城市雨水处理中使用堆肥等废料的影响以及城市雨水径流中的铜负荷。该案例研究显示了集水系统边界内的铜输入量，铜存量，吸附剂类型与城市雨水质量控制之间的关系。评估了源控制的不同方案，以控制来自不同源的铜负载。以道路和车辆为重点的源头控制是最有效的铜控制策略。源头控制和雨水处理相结合，减少了雨水和接收水中的铜。本文运用来自SFA的分析结果和实验结果来推导具有源控制的区域性全系统解决方案，以及改进的利用再生有机物去除重金属的雨水处理设计。

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