Augusto Pretner SGI Managing Director President of DFS Engineering

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）工程咨詢有限公司一直致力于優(yōu)化供水和排水公司的運營水平、確保對用戶的服務(wù)質(zhì)量和環(huán)保考量。資產(chǎn)管理是當今水業(yè)運營的新挑戰(zhàn)。管網(wǎng)再造往往耗資巨大，而供水需求和排水量在不斷增加，環(huán)境可持續(xù)發(fā)展對保持水質(zhì)和防止過度開發(fā)提出了很嚴格的要求。在這種情況下，SGI/DFS提供的先進技術(shù)就顯得至關(guān)重要和很高的效益。SGI / DFS專業(yè)研發(fā)了一系列的高級數(shù)據(jù)監(jiān)測、模擬和信息技術(shù)，來支持運營者和決策者對水和衛(wèi)生基礎(chǔ)設(shè)施進行戰(zhàn)略規(guī)劃和日常管理。

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.的董事長，兼蒂凡思（北京）工程咨詢有限公司的首席執(zhí)行官，針對SGI / DFS在世界各種多個供水管網(wǎng)漏損控制和污水基礎(chǔ)設(shè)施重建項目中得到廣泛應(yīng)用的上述技術(shù)和方法進行了概要評價。SGI / DFS在漏損控制技術(shù)的應(yīng)用領(lǐng)域在意大利處于領(lǐng)先地位，而上世紀九十年代以來，該項技術(shù)經(jīng)過改良，在世界范圍內(nèi)得到推廣。除意大利以外，SGI / DFS在阿爾巴尼亞、克羅地亞、塞浦路斯、埃及、希臘、約旦、毛里求斯共和國、中國、阿爾及利亞、伊拉克、塞內(nèi)加爾和羅馬尼亞等其他很多國家都開展了大量的項目。

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.
我們的漏損控制技術(shù)以嚴格扎實的工作程序為基礎(chǔ)，致力于掌握管網(wǎng)內(nèi)部的真實狀況、并實施最為經(jīng)濟有效的方案減少漏損，保持漏損控制最佳效益水平（即漏損控制成本超過恢復(fù)水量的成本的臨界值）。經(jīng)驗表明，制定漏損控制的長期策略的成效和負責主動漏損控制維護的工程團隊及現(xiàn)場技術(shù)人員（漏損控制小組）的工作密不可分。而SCADA（數(shù)據(jù)采集與監(jiān)視控制系統(tǒng)）的開發(fā)和擴展是另一個加強管網(wǎng)漏損控制的有效途徑。而對此Pretner先生以SGI開展的最為重要的漏損管理項目之一，TILDE項目為例，側(cè)重說明軟件工具的開發(fā)可以輔助最佳現(xiàn)有技術(shù)（BAT）的改進來控制漏損。另外，項目的成果之一是形成了包括所有與漏損相關(guān)的數(shù)據(jù)（如：監(jiān)測的流量、管壓和計算的漏損量等）管理系統(tǒng)（TILDE DMS），并劃分了漏損控制方案的優(yōu)先級別。

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 toｍａｓｔｅｒplans 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.
談到污水基礎(chǔ)設(shè)施的重建，我們在這個領(lǐng)域有超過80年的運營經(jīng)驗，并且從事了大量現(xiàn)有污水基礎(chǔ)設(shè)施的重建和升級的整體設(shè)計工作。SGI / DFS在數(shù)據(jù)分析、水力和水質(zhì)監(jiān)測、管網(wǎng)和受納水體的數(shù)學模型、性能分析、資產(chǎn)運營分級、為降低運營成本（如：節(jié)能降耗）進行管網(wǎng)再造和資產(chǎn)管理優(yōu)化的最優(yōu)技術(shù)方案、和水質(zhì)標準達標等方面都擁有尖端技術(shù)。

Ourｍａｓｔｅｒplans 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.
我們的整體設(shè)計方案的思路，是逐步確定管網(wǎng)的瓶頸點、并基于成本效益分析和干預(yù)措施的優(yōu)先級別，確定解決當前問題的最佳方案。數(shù)學模型的建立、率定和應(yīng)用是工作的一大重點，因為模型可以幫助我們了解系統(tǒng)的現(xiàn)有功能，并形成優(yōu)化運營的最佳方案。而關(guān)于排水管網(wǎng)內(nèi)部狀況的其他數(shù)據(jù)來源來自管線的閉合電視（CCTV），通過閉路電視在整個管網(wǎng)的全面監(jiān)控來定位管網(wǎng)的缺陷。閉路電視的監(jiān)控有助于確定重建的最佳技術(shù)，確保成本優(yōu)化和交通狀況影響最小化。這些技術(shù)的結(jié)合，并借助其他工具，如GIS、SCADA、和實時控制系統(tǒng)，可以實現(xiàn)先進的決策支持系統(tǒng)的開發(fā)，有助于運營者的長期規(guī)劃和日常管網(wǎng)運營。

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.
先進技術(shù)的應(yīng)用，加之海量數(shù)據(jù)的分析，SGI / DFS能夠評價基礎(chǔ)設(shè)施的維護和重建的需求，并優(yōu)化投資和運營費用。