rainwater infiltration Articles

  • Infiltration and retention structures

    Infiltration and retention structures  are measures, where rainwater is mainly seeped away after an intermediate storage.  There is a differentiation between overgrown and ungrown systems: overgrown systems filter strips swales trench elements (or systems) ...


    By IWA Publishing

  • Rainwater Harvesting

    With rainwater harvesting, precipitation discharge from roofs of public and private buildings can be collected in cisterns and withdrawn by pumps. The collected water replaces drinking water in areas where drinking water quality is not necessary to be obtained, such as in the household for flush, running the washing machine, to irrigate the garden but also in industrial areas. The main purpose of ...


    By IWA Publishing

  • Rainfall, Runoff and Infiltration Re-visited

    Introduction The flow variations in sewers have been modelled for several years with a comparatively high degree of accuracy as far as the diurnal variations and responses to climatic conditions are concerned. However, until comparatively recently the variations in flow due to fluctuations in groundwater levels, soil storage capacity and wetness of the catchment have only been modelled in basic ...


    By Innovyze

  • Alternative methods to control water infiltration for landfills: a case study in the tropics

    Landfill caps made of synthetic materials are expensive. Compacted clay caps are also subject to desiccation cracks which negate the overall purpose of infiltration reduction. Vegetative cover caps, also called evapotranspiration covers, have been tested in arid climates. In this research, a vegetative cover using a naturally occurring soil of Hawaii was tested. As the annual rainfall at the site ...


    By Inderscience Publishers

  • Design and construction of an experimental pervious paved parking area to harvest reusable rainwater

    Pervious pavements are sustainable urban drainage systems already known as rainwater infiltration techniques which reduce runoff formation and diffuse pollution in cities. The present research is focused on the design and construction of an experimental parking area, composed of 45 pervious pavement parking bays. Every pervious pavement was experimentally designed to store rainwater and measure ...


    By IWA Publishing

  • Keeping/ reconstituting groundwater

    In urban areas the rainwater often is (was) fast drained away. That leads to a shift in the water balance, infiltration and evaporation declined compared with the natural conditions. Caused by the missing infiltration, the groundwater level decline, which could have irreversible consequences for ecosystems like wetlands, lakes or rivers (because of missing low flow runoff). ...


    By IWA Publishing

  • Case study - NC Arboretum

    Project: NC Arboretum Location: Asheville, NC Application: Hose Bib Irrigation, Water Quality Protection System(s): 2,200 Gallon Complete Cottage w/ Matrix D-RainTank® Infiltration Project Description In partnership with the NC Arboretum and NC Cooperative Extension Service, BRAE provided the ...

  • Sustainable water resources management in the Long Bien district of Hanoi, Vietnam

    The accelerated industrialization of Hanoi, Vietnam, coupled with a high population growth rate and changing climatic conditions create increasing pressure on the local water balance. Despite abundant precipitations, overexploitation endangers the groundwater resources, which are not able to sustain an adequate water supply. The present paper presents a sustainable approach for balancing the ...


    By IWA Publishing

  • Ecological design for climate mitigation in contemporary urban living

    Evaporation is the most important hydrological function on Earth because it provides rain. As deforestation and urbanisation reduce plant cover and evapotranspiration, ever more short-wave solar radiation is converted to long-wave thermal emissions and sensible heat. Higher surface temperatures set up heat island effects, contributing to local, and ultimately, global climate change. Rainwater ...


    By Inderscience Publishers

  • Case study - Topsail Beach, NC - 203 North Anderson Blvd.

    Stored rainwater is used to supply drip irrigation while a dry well system carries rooftop stormwater runoff below a parking area in this residential BRAE design. Project: 203 North Anderson Blvd. Location: Topsail Beach, NC Application: Drip Irrigation System and Stormwater Infiltration System(s): BRAE Complete™ Home ...

  • Improved wet weather wastewater influent modelling at Viikinmäki WWTP by on-line weather radar information

    Municipal wastewater treatment plant (WWTP) influent is typically dependent on diurnal variation of urban production of liquid waste, infiltration of stormwater runoff and groundwater infiltration. During wet weather conditions the infiltration phenomenon typically increases the risk of overflows in the sewer system as well as the risk of having to bypass the WWTP. Combined sewer infrastructure ...


    By IWA Publishing

  • Evaporation and retention structures

    On natural, unsealed areas evaporation is the main part of the water balance among surface runoff and percolation. In Germany, an average of 60 % of precipitation evaporates on unsealed areas. If the intend is a natural hydrological balance, great importance is attached to evaporation. Besides, measures for rainwater harvesting, that have a positive impact on evaporation can contribute positively ...


    By IWA Publishing

  • Performance of soil and compost mixture in leachate purification at intermediate cover soil of tropical landfill

    Leachate treatment was studied in simulated columns filled with different types of cover materials, i.e. (a) natural soil, (b) mixture of soil and planting soil, (c) mixture of soil and compost at 2:1 ratio and (d) mixture of soil and compost at 1:1 ratio. Filter performance was evaluated at different water application rates equivalent to rainfall intensity of 25, 50 and 100 mm/d. Leachate ...


    By Inderscience Publishers

  • Low impact development: San Francisco’s green approach to stormwater management

     ABSTRACT This paper presents the methods, findings, and policy implications of a comprehensive evaluation of low impact development (LID) techniques for the City of San Francisco. LID is an innovative approach to stormwater management that relies on decentralized, small-scale stormwater facilities and site-design techniques to reduce wet weather flows and to remove stormwater ...

  • Conversion to Extensive Grass Land for Flood Risk Management

    The Mitigation Strategy of the measure Conversion to Extensive Grassland refers to flood prevention and environmental protection also. Flood protection can be achieved by: Increase the infiltration of rainwater by high roughness and preventing soil silting, Reducing the flow velocity of surface run off, The hydrologic-hydraulic effect varies depending on the ...


    By IWA Publishing

  • Groundwater resources of a multi-layered aquiferous system in arid area: Data analysis and water budgeting

    The Maknassy basin in central Tunisia receives insignificant precipitation (207 mm/y), but the hydrological system retain very small quantities of water due to the steep topography and surface water resource partially mobilised witch is evacuated toward the basin outlet. However, the Maknassy plain support agriculture based on ground water ...

  • Soil Attenuation Model (SAM) Technical Background Document

    Under a risk-based corrective action (RBCA) process, soils and groundwater impacted by a chemical release are to be remediated or controlled to concentration levels such that further migration will not expose human or environmental receptors to unsafe levels of hazardous constituents. For this purpose, site-specific target levels (SSTLs) must be established for the affected soil mass such that ...


  • Low impact development: San Francisco’s green approach to stormwater management

    This paper presents the methods, findings, and policy implications of a comprehensive evaluation of low impact development (LID) techniques for the City of San Francisco. LID is an innovative approach to stormwater management that relies on decentralized, small-scale stormwater facilities and site-design techniques to reduce wet weather flows and to remove stormwater pollutants. The LID analysis ...

  • Potential role of Bacillus endospores in soil amended by olive mill wastewater

    The main aim of this work was to know how spread is laccase activity in spores of Bacillus species isolated from a soil where Italian law allows olive mill wastewater (OMW) spreading, and to investigate the potential role of such autochthonous soil microorganisms in degradation of OMW phenols, and prevention of groundwater pollution. Laccase activity was detected for the first time in spores of ...


    By IWA Publishing

  • Evironmentally Concious Stormwater Management Through Sustainable Design and Best Management Practices

    ABSTRACTBecause development has dramatically altered the hydrologic environment’s sustainability, the Milwaukee Metropolitan Sewerage District (MMSD) is encouraging the use of “green” design through stormwater management BMPs. The MMSD asked Graef, Anhalt, Schloemer and Associates, Inc. (GAS) to evaluate and design stormwater management BMPs. The MMSD headquarters in Milwaukee, WI is serving as ...

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