Evaluation of the performance of the tire derived aggregate vs natural aggregate in septic field

化粪池系统主要用于单户或多户住宅，以提供家庭废水的处理。它们最常用于农村和偏远地区。在加拿大，目前25%的家庭正在使用化粪池系统作为废水处理的一种手段。在大多数化粪池系统设施中，天然集料(石料)被用来将废水分配到周围的土壤中，并支持生物生长。在美国进行的研究表明，轮胎衍生骨料(TDA)具有与天然骨料相似的几何形状和高稳定性，是化粪场天然骨料的极佳替代品。此外，研究表明，与通常在马尼托巴省化粪场使用的石灰石骨料相比，TDA是一种更好的细菌生长支撑材料。这项提案的目的是在加拿大的背景下评估TDA作为自然总量的替代品。该项目的试验场将设在阿什恩。将疏散一个新的渗滤液场，并将修建四条淋滤沟。其中两个战壕将使用TDA进行测试，另外两个战壕将使用天然骨料进行测试。通过一系列的试验研究了TDA的水力性能；2)TDA浸出的化学成分和浓度。这项研究的结果将被马尼托巴省保护组织用作批准在马尼托巴省化粪场使用TDA作为集料的参考。如果TDA被批准作为化粪场应用的替代集料，它将为OTR回收公司以及轮胎回收行业打开一个巨大的市场。一栋房子的平均骨料使用量约为70m³。这相当于约100个轮胎的TDA在2“。这项研究的结果将是至关重要的，以使加拿大的环境监管机构作出明智的决定。

Septic systems are used primarily for single or multi-family residences to provide treatment of household wastewater. They are most commonly used in rural and remote area. In Canada, currently 25% of households are using septic system as a means of wastewater treatment. In most septic system installations, natural aggregate (stone) is used to distribute the wastewater to the surrounding soil and support biological growth. Studies conducted in the US have shown that tire derived aggregate (TDA), with similar geometry to natural aggregate and high stability, is an excellent candidate for replacement of natural aggregate in septic fields. In addition, research has shown that TDA is a superior supporting material for bacterial growth over limestone aggregate which is normally used in Manitoba in septic fields. The objective of this proposal is to evaluate TDA as a replacement for nature aggregate in the Canadian context. The project's test site will be located in Ashern. A new leachate field will be evacuated and fourleaching trenches will be constructed. Two trenches will be tested with TDA and the other two trenches will be tested with natural aggregate. A series of experiments will be conducted to study 1) Hydraulic performance of TDA; 2) chemical constituents and concentration that are leaching from TDA. The result obtained from this study will be used by Manitoba Conservation as a reference for approving the use of TDA as aggregate in the septic fields in Manitoba. If TDA is approved as an alternative aggregate for septic fields' application, it will open a huge market for OTR Recycling Corp as well as the tire recycling industry. The average usage of aggregate for a single house is approximately 70 m³. This equivalent to about 100 tires of TDA at 2". The results from this research will be essential in order for the environmental regulatory bodies cross Canada to make a knowledgeable decisions.