Abstract – 摘要
SGI Studio Galli Ingegneria S.p.A. together with DFS Engineering strive to optimise the operational performance of water and wastewater utilities whilst ensuring quality of services to clients and due respect to the environment. Asset management is a challenge for today’s water operators. The costs for rehabilitation are huge, demand for water and wastewater services increases, and the need for environmental sustainability is imposing strict limitations to preserve water quality and prevent overexploitation. In such context the application of the advanced technologies employed by SGI / DFS can be extremely helpful and cost effective. SGI / DFS has developed in-depth expertise in the use of advanced monitoring, modelling and information technologies to support operators and decision makers in their strategic planning and day-to-day operation of water and sanitation infrastructure.
SGI Studio Galli Ingegneria S.p.A.及其子公司蒂凡思（北京）工程咨询有限公司一直致力于优化供水和排水公司的运营水平、确保对用户的服务质量和环保考量。资产管理是当今水业运营的新挑战。管网再造往往耗资巨大，而供水需求和排水量在不断增加，环境可持续发展对保持水质和防止过度开发提出了很严格的要求。在这种情况下，SGI/DFS提供的先进技术就显得至关重要和很高的效益。SGI / DFS专业研发了一系列的高级数据监测、模拟和信息技术，来支持运营者和决策者对水和卫生基础设施进行战略规划和日常管理。

Eng. Augusto Pretner, Managing Director of SGI Studio Galli Ingegneria S.p.A. and President of DFS Engineering, gave an overview of the methodology and technologies that SGI / DFS has employed in numerous projects around the world to reduce leakage in water distribution systems and rehabilitate wastewater infrastructure. SGI / DFS has pioneered the application of advanced leakage control techniques in Italy and since the early 90-ies has been actively involved in the adaptation of these practices around the world. Other than in Italy, SGI / DFS has carried out projects in Albania, Croatia, Cyprus, Egypt, Greece, Jordan, Norway, Republic of Mauritius, China, Algeria, Iraq, Senegal and Romania.
Augusto Pretner先生是SGI Studio Galli Ingegneria S.p.A.的董事长，兼蒂凡思（北京）工程咨询有限公司的首席执行官，针对SGI / DFS在世界各种多个供水管网漏损控制和污水基础设施重建项目中得到广泛应用的上述技术和方法进行了概要评价。SGI / DFS在漏损控制技术的应用领域在意大利处于领先地位，而上世纪九十年代以来，该项技术经过改良，在世界范围内得到推广。除意大利以外，SGI / DFS在阿尔巴尼亚、克罗地亚、塞浦路斯、埃及、希腊、约旦、毛里求斯共和国、中国、阿尔及利亚、伊拉克、塞内加尔和罗马尼亚等其他很多国家都开展了大量的项目。

Our methodology for leakage control is based on sequential steps aimed at gaining insight into the network’s operation and putting in place the most cost-effective actions to reduce and sustain the economic level of leakage, which is the value at which the cost of leakage control measures exceeds the marginal value of water recovered. Experience has shown the effectiveness of setting up a long term strategy for leakage control involving a dedicated team of engineers and field technicians (the Leakage Control Unit) responsible for maintaining the Active Leakage Control in place. The development or extension of the SCADA (Supervisory Control and Data Acquisition) is also an effective way to increase the control of leakage in the network. In such terms Mr. Pretner gave an example of one of the most important leakage management project carried out by SGI – the TILDE project, focused on the development of software tools to facilitate the adoption of best available technologies (BAT) for leakage control. Additionally the project has produced a data management system (TILDE DMS) that elaborates all leakage related data (e.g. monitored flows, pressures, calculated leakage, etc.) and prioritises leakage control actions.
我们的漏损控制技术以严格扎实的工作程序为基础，致力于掌握管网内部的真实状况、并实施最为经济有效的方案减少漏损，保持漏损控制最佳效益水平（即漏损控制成本超过恢复水量的成本的临界值）。经验表明，制定漏损控制的长期策略的成效和负责主动漏损控制维护的工程团队及现场技术人员（漏损控制小组）的工作密不可分。而SCADA（数据采集与监视控制系统）的开发和扩展是另一个加强管网漏损控制的有效途径。而对此Pretner先生以SGI开展的最为重要的漏损管理项目之一，TILDE项目为例，侧重说明软件工具的开发可以辅助最佳现有技术（BAT）的改进来控制漏损。另外，项目的成果之一是形成了包括所有与漏损相关的数据（如：监测的流量、管压和计算的漏损量等）管理系统（TILDE DMS），并划分了漏损控制方案的优先级别。

As far as the rehabilitation of wastewater infrastructure is concerned, we are operating in the wastewater sector for over eighty years, and a good part of it has been dedicated to master plans for the upgrading and rehabilitation of existing wastewater systems. SGI / DFS employs cutting-edge technologies for data analysis, hydraulic and water quality monitoring, mathematical modelling of networks and receiving waters, performance analysis, operational categorisation of assets, selection of most appropriate trench-less techniques for pipe rehabilitation and optimisation of asset management to achieve operational savings (e.g. energy) and comply with water quality standards.
谈到污水基础设施的重建，我们在这个领域有超过80年的运营经验，并且从事了大量现有污水基础设施的重建和升级的整体设计工作。SGI / DFS在数据分析、水力和水质监测、管网和受纳水体的数学模型、性能分析、资产运营分级、为降低运营成本（如：节能降耗）进行管网再造和资产管理优化的最优技术方案、和水质标准达标等方面都拥有尖端技术。

Our master plans follow a step-by-step approach that consents to gradually identify the networks’ bottlenecks, define optional solutions to solve current problems and, based on a cost-benefit analysis, prioritise interventions. A substantial part of our work is spent in development; calibration and application of mathematical models that help us understand the current functioning of the system and develop solutions to optimise operation. Other information source about the internal condition of sewers is the closed conduit television (CCTV) inspections made by a camera that runs through the sewers to identify deficiencies in the network. The analysis of CCTV inspections consents the identification of targeted rehabilitation techniques that optimise costs and minimise disruption of traffic. The combination of these technologies along with other tools such as GIS, SCADA and Real Time Control systems, consent the development of advanced decision support systems that can help operators both in their long term planning and the daily operation of networks.
我们的整体设计方案的思路，是逐步确定管网的瓶颈点、并基于成本效益分析和干预措施的优先级别，确定解决当前问题的最佳方案。数学模型的建立、率定和应用是工作的一大重点，因为模型可以帮助我们了解系统的现有功能，并形成优化运营的最佳方案。而关于排水管网内部状况的其他数据来源来自管线的闭合电视（CCTV），通过闭路电视在整个管网的全面监控来定位管网的缺陷。闭路电视的监控有助于确定重建的最佳技术，确保成本优化和交通状况影响最小化。这些技术的结合，并借助其他工具，如GIS、SCADA、和实时控制系统，可以实现先进的决策支持系统的开发，有助于运营者的长期规划和日常管网运营。

With the application of the most up-to-date technologies, along with extensive data analysis, SGI / DFS is capable to evaluate the maintenance and rehabilitation needs of infrastructure and propose schemes to optimise capital investment and operational costs.
先进技术的应用，加之海量数据的分析，SGI / DFS能够评价基础设施的维护和重建的需求，并优化投资和运营费用。