نتایج جستجو برای: sewerage

تعداد نتایج: 724  

Journal: :Environmental pollution 2003
Andy Baker Roger Inverarity Martin Charlton Susie Richmond

Recent advances in fluorescence spectrophotometry enable the analysis of river dissolved organic matter. We investigate the potential of detecting sewage pollution in a small, urbanised catchment. Downstream sampling highlighted a summer maximum in tryptophan fluorescence intensity during low flow. No correlation is observed between ammonia and tryptophan fluorescence intensity. In contrast, tw...

2007
Charlotte Paterson Duncan Mara Tom Curtis

It is estimated that at least two billion people have inadequate sanitation. The current situation in water and sanitation services for millions of peri-urban residents is starkly antipoor and represents a major challenge for the 21 century. By virtue of its cost and water requirements, we would argue that conventional sewerage is an implicitly anti-poor technology. This paper summarises low-co...

2016
Hussein Sabah Jaber

In this article, the Environmental pollution in Iraq was studied by using the remote sensing techniques for the period (2010-2014). In general, the environmental pollution can be divided into three major parts: Air, Water, and soil pollutions. To overcome the problem, multi-satellite images with different resolution and bands at different dates were used to detect and quantize the source of pol...

2014
Tung-Ching Su Ming-Der Yang

As one of major underground pipelines, sewerage is an important infrastructure in any modern city. The most common problem occurring in sewerage is leaking, whose position and failure level is typically identified through closed circuit television (CCTV) inspection in order to facilitate rehabilitation process. This paper proposes a novel method of computer vision, morphological segmentation ba...

2005
Joachim Hinrichs Volkmar Pipek Volker Wulf

Classification schemes are an important issue in the collective use of large document collections. We have investigated the classification of technical documentations in two engineering domains: a steel mill and a sewerage plant company. In both cases we found a coexistence of different classification schemes and problems resulting from distributed local archives. In supporting human actors to ...

Journal: :آب و توسعه پایدار 0
احسان عظیمی قالیباف سعیدرضا خداشناس الهام قربانی کیوان صائب

sulfide production has been one of the most important problems in sewage collection systems that came to be known as an important factor of corrosion in concrete sewerage systems since early 1900. the emission of hydrogen sulfide gas in sewerage conduits creates problems including biological corrosion of concrete, release of repulsive odors in the city environment, as well as the potential dang...

Journal: :Minutes of the Proceedings of the Institution of Civil Engineers 1885

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید