horizontal drainage Articles

  • Ground drainage with Filtram

    The A11 Thetford Bypass comprises approximately 7.5km of single and double carriageway. The design called for a roadside fin drain system to act as a vertical water flow interceptor in conjunction with a horizontal under channel drainage layer incorporated within the roadbase. The combined system discharges to conventional drainage outlets. Filtram 1B1 -ED was chosen as the vertical fin drain and ...

  • Application of horizontal-flow anaerobic immobilized biomass reactor for bioremediation of acid mine drainage

    The production of low-pH effluent with sulfate and metals is one of the biggest environmental concerns in the mining industry. The biological process for sulfate reduction has the potential to become a low-cost solution that enables the recovery of interesting compounds. The present study analyzed such a process in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor, employing ...


    By IWA Publishing

  • Analysis of groundwater–surface water interaction in horizontal unconfined aquifer bounded by a stream and groundwater divide using a non–linear numerical model

    In this study, a non–linear numerical model was developed to analyse the interaction between the drainage water moving from an unconfined aquifer and a surface water body. This interaction can occur during or after a rainfall event, which can cause the groundwater table to change. At first, a laboratory–scale aquifer model with stream and groundwater divide boundaries was established to examine ...


    By Inderscience Publishers

  • Water quality for irrigation and drinking water use of Aflaj in Oman

    The Sultanate of Oman is an arid country with scarce water resources mainly consisting of groundwater. Aflaj are artificial canals constructed centuries ago to transfer horizontally the groundwater to a location at the surface. The water quality of these Aflaj is a very important factor to be considered for healthy and safe use of this water. This paper aimed to study the characteristics of the ...


    By IWA Publishing

  • MIKE 11 model-based water quality model as a tool for the evaluation of water quality management plans

    Water quality models are important tools to test the effectiveness of alternative management plans on the water quality of water bodies. The main aim of this study was to develop and demonstrate use of a water quality model as a tool for evaluation of alternative water management scenarios for the river basin of Beijing, China. Considering Lao Hewan river landscape water circulation patterns and ...


    By IWA Publishing

  • Comparison of nitrogen elimination rates of different constructed wetland designs

    In this paper the nitrogen elimination rates of different constructed wetland (CW) designs reported in literature are compared with those obtained for outdoor and indoor 2-stage vertical flow (VF) systems. The outdoor system is located about 150 km west of Vienna. Both stages are planted with Phragmites australis and the system has been operated for 4 years continuously. During this period the ...


    By IWA Publishing

  • Historical, biological and morphological aspects of the Roccarainola qanat in the district of Naples, Italy

    A qanat is an underground channel consisting of verticals shafts connected at their bottom with a sub-horizontal tunnel bringing water from an aquiferous stratum, with a slight downward slope useful for the water tapped to run down it and into the open air by gravity. Qanats were first developed in Kurdistan as a side result of mining activity by the early millennium B.C. at the latest. Qanats ...


    By IWA Publishing

  • Solving waste oil management and removal problems in power generating plants

    If your plant is like most, it is doing a good job of preventing oily water waste and waste oils from escaping into the environment. But at what cost? As labor resources dwindle, operating and maintaining drainage systems, oil separators, and sometimes inadequate oil removal equipment is expensive. Paying higher than needed costs for waste oil disposal, filtration and water treatment due to these ...


    By Oil Skimmers, Inc.

  • Direct-Push Injection and Circulation Biobarrier to Remediate a TCE Groundwater Plume

    ABSTRACT: The goal of this study was to determine if direct-push drilling methods combined with a circulation system could be used to establish a passive biobarrier in a very transmissive aquifer to treat tricholoroethene (TCE). The Site is located in central Indiana, where historic use of TCE has impacted an unconfined aquifer. A plume consisting primarily of TCE has migrated from west to east ...


    By EOS Remediation, LLC

  • Change in Grinding Approach Yields Huge Upturn in Production

    In construction, there is one tenet that rings true for everyone from the smaller general contractor doing residential work, to the largest heavy highway firms at work today: having the right tool for the right job can be key to any project’s success. When that project is — dollar for dollar — one of the largest in the country,the importance of adhering to that rule grows ...


    By Morbark, LLC

  • Scrubers with a level head

    The available methods for removing pollutants from a gas stream are numerous, to say the least. A popular method, scrubbers allow users to separate gases and solids by allowing the gas to come into contact with a liquid stream. In the end, the pollutants are washed away in the effluent, and the gas exits the system to be used in later processes or to be released into the atmosphere. For many ...


    By Kimre, Inc.

  • Modeling of Sedimentation in Stormwater Detention Basins

    ABSTRACTTo minimize the non-point source pollution from roadway surface, the Texas Department of Transportation (TxDOT) initiated a research project for design of a small footprint non-proprietary detention basin, which consists of pipes and box culvert sections with specialized inlet and outlet system. A conceptual model was developed to estimate particle removal efficiency of the rectangular ...

  • Utilizing unconventional water sources for industrial reuse

    Reclamation and reuse of unconventional wastewater sources for plant raw water, cooling water and process pre-treatment has increased substantially due to increases in the cost of drinking water, recurring water shortages that can impact business operations, and tightening government regulation. Water is required in almost every industrial sector for the processing and manufacture of products. ...


    By WesTech Engineering, Inc.

  • In Situ electromagnetic heating for hydrocarbon recovery and environmental remediation

    Introduction Thermal recovery methods, as applied in heavy oil and oil sand deposits, and in environmental remediation, have the common objective of accelerating the hydrocarbon recovery process. Raising the temperature of the host formation reduces the oil and bitumen viscosity, and, in environmental remediation, increases vapour pressure. These effects assist in sweeping the substances ...


    By McMillan-McGee Corp.

  • Closures of mine a new challenge for Romania

    AbstractThe mining activity is one of the oldest activity in Romania, dating from the year 100 B.C. The gold and silver ores represented one of the riches of our country. In time the economic content of metals diminuend, and the ore mines become non profitable. Due to this situation the best option of the State was the closure and ecological rehabilitation of the mines.The steps for the ...


  • New approach makes faster and efficient work of oil spills

    A comprehensive new study of oil’s behaviour in various sea conditions has resulted in significant advances in oil spill recovery using boom-style systems. Put into practice in DESMI ‘s Speed-Sweep Oil Spill Response (OSR) solution, the new approach speeds up oil recovery, increases encounter rates, covers a wider area in a shorter time and provides new flexibility in the choice of ...


    By DESMI A/S

  • Maximum Efficiency for...Saving Water

    In an attempt to protect our ecological surroundings and minimize the negative effects of industrial processes, it is necessary to purify and recover the waters used during washing operations of sand washing, quarrying and recycling operations. The first step is to recover 100% of the waters used and to eliminate the concentration of sludge, thus Baioni's solutions aim at offering a full sludge ...


    By Baioni Crushing Plants Spa

  • Use of Land over Closed Municipal Solid Waste Landfill

     §330.951. Definitions. Unless otherwise noted, all terms contained in this section are defined by their plain meaning. This section contains definitions that are applicable only to this subchapter and which supersede definitions in §330.2 of this title (relating to Definitions) where those terms appear in this subchapter. As used in this subchapter, words in the singular include the plural ...


  • For a successful finish, you need to start with the right tools

    Proper tool selection and pre-planning helps minimize mistakes When Brian Kenkel decided the time was right to start his own business, there were several underground drilling contractors already firmly established. Having been involved with horizontal directional drilling (HDD) for several years before he and two business partners founded Hurk Underground, based in Grinnell, Iowa, ...


    By Vermeer

  • Optimizing water management in hydraulic fracturing for shale oil and gas production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you