urban canal Articles

  • In situ treatment of canal sediments case study

    The Problem Rivers and waterways have traditionally been the focus of industrial construction and commerce. Throughout the world, cities have grown and flourished on the banks of major inland waterways. Additionally, major industrial development has focused on these same inland waterways. These waterways provided and continue to provide a cost effective transportation system for ...


    By Nordevco Associates Ltd.

  • Stormwater input of pyrethroid insecticides to an urban river

    The American River flows for nearly 50 km through highly urbanized lands surrounding Sacramento, California, USA. Twenty‐three streams, drainage canals, or pumping stations discharge urban runoff to the river, with the cumulative effect of nearly doubling the river's flow during rain events. During winter storms, the water column in the most downstream 13‐km reach of the river exhibited toxicity ...


    By John Wiley & Sons, Ltd.

  • How to Plan Stormwater Management for Urban Areas

    Water is a vital commodity in our lives, but it is possible to have too much water all at once in our lives, especially following violent storms or snow melt. This excess water, lying on the ground, swelling rivers, canals and drains to over-capacity is known as stormwater. In order to make the best use of this water, local authorities need to safely contain stormwater while any ...


    By Liquivault

  • Performance of a pilot showcase of different wetland systems in an urban setting in Singapore

    The Alexandra Wetlands, part of PUB's Active, Beautiful, Clean Waters (ABC Waters) Programme, showcase a surface flow wetland, an aquatic pond and a sub-surface flow wetland on a 200 m deck built over an urban drainage canal. Water from the canal is pumped to a sedimentation basin, before flowing in parallel to the three wetlands. Water quality monitoring was carried out monthly from ...


    By IWA Publishing

  • Climate adaptive urban planning and design with water in Dutch polders

    The existing water management in Dutch polders is based on independent water systems for each polder. These are featuring artificial stabilized ground and surface water levels. As a result of the local climate the water levels in the polders are not continuously at a constant level. To maintain a stable water table in the polders, the surplus of relatively clean rainwater has to be pumped away ...


    By IWA Publishing

  • Assessing the extent of induced leakage to an urban aquifer using environmental tracers: an example from Bishkek, capital of Kyrgyzstan, Central Asia

    A groundwater residence time study of the deep fluvioglacial aquifer supplying Bishkek, capital of Kyrgyzstan, has found evidence of deep infiltration of recent recharge both in the main periurban wellfield and below the city. Commonly-employed hydrochemical markers detected urban influence in the city-centre to depths of 65–100 m, but gave no indication of the important role of induced ...


    By Springer

  • Quantitative microbial risk assessment related to urban wastewater and lagoon water reuse in Abidjan, Côte d'Ivoire

    We assessed the infection risks related to the use of wastewater in Abidjan, Côte d'Ivoire, by using quantitative microbial risk assessment (QMRA). Giardia lamblia and Escherichia coli were isolated and identified in wastewater samples from the canal and lagoon. The exposure assessment was conducted using a cross-sectional survey by questionnaire with 150 ...


    By IWA Publishing

  • Wastewater management techniques from ancient civilizations to modern ages: examples from South Asia

    Wastewater management appeared about 3000 BC in South Asia, and spread on the whole subcontinent with the development of urbanization during its early history. Domestic grey water and black water were canalized through street-side drains, and cesspits was implemented at house outlet level, or at drain crossing, in order to avoid the clogging of the system. Nothing seems to be known about the ...


    By IWA Publishing

  • Spatial and historic characteristics of Phnom Penh central area: Railway Station Garden

    Phnom Penh was subject to westernisation during colonisation. Constructions of European styles and great public works sequentially proceeded to transform the city. Ancient canal dating to 1413 was restored enclosing French city for flood prevention and leaving locals outside. Not until 1899 did then urbanism orient to localisation and the canal was developed for a green-space. Semantically, this ...


    By Inderscience Publishers

  • Community-based wastewater treatment systems and water quality of an Indonesian village

    This paper examines the impact of community-based water treatment systems on water quality in a peri-urban village in Yogyakarta, Indonesia. Water samples were taken from the wastewater treatment plants (WWTPs), irrigation canals, paddy fields and wells during the dry and wet seasons. The samples were tested for biological and chemical oxygen demand, nutrients (ammonia, nitrate, total nitrogen ...


    By IWA Publishing

  • Assessment of E. coli and Salmonella spp. infection risks associated with different fecal sludge disposal practices in Thailand

    The proper management of fecal sludge (FS), to block the transmission pathways of pathogens, is rarely enforced in many parts of the world. Health risks associated with different disposal practices of FS in peri-urban settings of a large metropolis in Thailand were assessed; Tha Klong sub-district with indiscriminate FS dumping, and Klong Luang sub-district which has an FS treatment system. The ...


    By IWA Publishing

  • Columbia River Gets a Vertical Fish Screen - case study

    The Columbia River is huge and runs past deserts, towns, major cities and numerous recreation areas. It is a major fishery, as well. So this screen had to protect and exclude fish, handle natural and urban debris, and operate in a constricted space.  We designed and installed large vertical fish screens with hoods. Now the irrigation canal is clean and clear of river debris. The fish are ...


    By International Water Screens

  • The City Blueprint of Amsterdam: an assessment of integrated water resources management in the capital of the Netherlands

    In this study the sustainability of integrated water resources management in Amsterdam has been reviewed using the City Blueprint approach. The City Blueprint® is a set of 24 dedicated indicators divided over eight categories, i.e., water security, water quality, drinking water, sanitation, infrastructure, climate robustness, biodiversity and attractiveness, and governance including ...


    By IWA Publishing

  • Monitoring micropollutants in the Swist river basin

    Micropollutant pathways were studied for the Swist river basin (Western Germany). The aim was to verify the effectiveness of a monitoring approach to detect micropollutants entering the river. In a separate sewer system, water was frequently found to be contaminated with micropollutants. Improper connections of sewage canals to the stormwater network seemed to be the cause of pollution. ...


    By IWA Publishing

  • The potential to improve water quality in the middle Rio Grande through effective wetland restoration

    The Rio Grande, which forms the United States—Mexico border for much of its course, receives diverse pollutants from both urban and agricultural areas, most notably in the sister cities of El Paso (TX, USA)—Ciudad Juárez (CHI, Mexico). This study aimed to describe regional trends in water quality in waters near the El Paso–Ciudad Juárez metroplex and to examine the potential for water quality ...


    By IWA Publishing

  • Chicago waterway habitat case study

    Habitat study determines limiting factors to fish The Chicago Area Waterway System (CAWS) is a network of 78 miles of rivers and deep-draft canals in and around the City of Chicago. The Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) maintains the system for navigation, flood control, and wastewater conveyance. The CAWS is unique in that 75% of the system is manmade ...


    By LimnoTech Inc.

  • 6. Middle Regge Project Implementation

    Not only has the Regge been severely canalized in the past, a very large part of its catchment area in the eastern part of the Twente region has been disconnected from the system. A large part of this area, with relatively clean creeks, will now be reconnected by 2013 by the creation of new river that will flow into the Regge river a bit north of Enter in the Municipality ...


    By IWA Publishing

  • Wastewater Management in the Community of El Valle de la Union - A Pilot Project Initiative to Improve Water Quality in the Gatuncillo Sub-Watershed

    ABSTRACTInadequate wastewater management practices from small communities are becoming a serious contamination threat to the public health and water quality of the Gatuncillo Sub-watershed which belongs to the Panama Canal watershed. Gatuncillo is considered a high priority subwatershed due to its various water uses, such as public water supply, recreational activities, fishing, and operations of ...

  • Phosphorus runoff is a big problem, but Florida is getting closer to a solution

    Excess phosphorus runoff and emissions from urban areas and croplands, animal feedlots, sewage treatment plants, and combustion of fossil fuels has been blamed for the dead zone in the Gulf of Mexico, toxic algal blooms in Lake ...


    By Ensia

  • Stormwater treatment area 3/4

    Restore the Everglades That's the task the Florida Legislature set for the South Florida Water Management District. But how? Decades of development had eliminated the sheet flow of water from Lake Okeechobee. Densely populated cities and a 700,000-acre agricultural area, drained by 1,500 miles of canals and levees, now lay between the lake and the Everglades. Wetlands have disappeared. ...


    By Burns & McDonnell

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