Soil & Groundwater Articles

  • Synthesis of chitosan zero-valent iron nanoparticles-supported for cadmium removal: characterization, optimization and modeling approach

    Herein, chitosan (CS) impregnated with nanoparticles of zero-valent iron (NZVI) was fabricated onto a magnetic composite of CS@NZVI as an adsorbent for cadmium (Cd2+) removal from aqueous solution. The characteristics of CS@NZVI were analyzed by Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, CHONS and Brunauer, Emmett and Teller techniques. The ...


    By IWA Publishing

  • F4 Spill In Situ Bioremediation Applications

    F4 Completed an in situ water bioremediation program of Bio-ReClaim in northern Alberta; a pipeline leaked crude oil over a 14 hectare area in muskeg. Alberta Environment (AEP) allowed the in situ water application of Bio-Reclaim by F4 Environmental. Keeping in mind the application was performed without any ground disturbance and extremely cost effective compared to the ...


    By F4 Environmental Inc.

  • Towards a research agenda for water, sanitation and antimicrobial resistance

    Clinically relevant antimicrobial resistant bacteria, genetic resistance elements, and antibiotic residues (so-called AMR) from human and animal waste are abundantly present in environmental samples. This presence could lead to human exposure to AMR. In 2015, the World Health Organization (WHO) developed a Global Action Plan for Antimicrobial Resistance with one of its strategic objectives ...


    By IWA Publishing

  • How to choose open cell or closed cell articulated concrete blocks

    Are you wondering what the best, most cost-effective solution is for erosion control at your construction site? There are a variety of solutions available, but we always highly recommend the use of articulated concrete blocks. These systems are a great alternative to what can otherwise be a costly, time-consuming task in erosion control. Articulated concrete block systems can be used in a wide ...

  • KFC Kentucky Fried Chicken - Case Study

    BACKGROUND KFC a worldwide well renown fast food outlet, trailblazers of the sector have already started to implement energy saving environmental initiatives at its flagship stores, so far a 32% reduction in energy usage has already been achieved at their LEED accredited sites, by using items such as LED lighting, solar panels, daylight harvesting systems and smart electronics ...


    By Tidy Planet Limited

  • Clyde shopping centre - Case study

    Background Clyde Shopping Centre, Clydebank, already winners with their partner FM Company Andron Facilities Management, of the Bronze Standard for recycling in the “Green Apple Awards” sought new and improved methods of increasing their already high environmental aspirations. The site having already reduced its carbon footprint by  29% recently by   ...


    By Tidy Planet Limited

  • Cotehele National Trust - Case study

    Background For some time the National Trust has been assessing the risk climate change poses to its houses, gardens, coast and countryside as well as their impact on the wider environment. Cotehele National Trust includes a mill, 15 century chapel and Cotehele Quay. They receive around 100,000 visitors a year to its Barn Restaurant and Edgcumbe Arms Tearoom. Toby Fox, National Trust ...


    By Tidy Planet Limited

  • Examining the benefits of HDPE geomembrane

    Comparing various geomembranes for your next geosynthetic application? Don’t overlook high-density polyethylene (HDPE) geomembrane. HDPE has been in use for decades and during that time a number of studies have been conducted to test its longevity and ability to meet environmental sustainability project requirements. Here, we explore some of those studies to examine the benefits of HDPE ...


    By Agru America, Inc.

  • Optimal waste load allocation using graph model for conflict resolution

    In this paper, a new methodology is proposed for waste load allocation in river systems using the decision support system (DSS) for the graph model for conflict resolution II (GMCRII), multi-criteria decision making (MCDM) analysis and the Multi-Objective Particle Swarm Optimization (MOPSO) algorithm. Minimization of total treatment and penalty costs and minimization of biological oxygen ...


    By IWA Publishing

  • Simultaneous use of iron and copper anodes in photoelectro-Fenton process: concurrent removals of dye and cadmium

    Photoelectro-Fenton (PEF) was carried out for concurrent removals of inorganic and organic pollutants with simultaneous applications of two different anodes (iron and copper). Cadmium and Direct Orange 26 (DO26) were selected as samples of the contaminants of textile wastewater and influential parameters (pH, current density, H2O2 dosage and electrolysis time) of PEF were evaluated on Cd ...


    By IWA Publishing

  • DESMI Pumps for HVAC in Sharjah, UAE - Case Study

    DESMI has supplied a series of eight NSLH End Suction Centrifugal Pumps for the Umm Al-Qura building located in Sharjah at the Al Mamzar beach. The NSLH pumps will be providing 198 differently sized apartments with cooling. The residential building has 22 floors + 5 floors for car ...


    By DESMI A/S

  • Characterization of pit latrines to support the design and selection of emptying tools in peri-urban Mzuzu, Malawi

    The urban areas of many low-income countries must balance a rising demand for pit latrines for household sanitation provision against limitations in space, resulting in a need for pit latrine emptying services. This study was undertaken in the peri-urban neighborhood of Area 1B in the city of Mzuzu, Malawi, to examine the characteristics of household pit latrines for designing and selecting ...


    By IWA Publishing

  • Hydroseeding for Transportation Projects

    Hydroseeding has connections with most forms of transportation, including revegetation around highways, airports, and mass transit projects. It is even a part of water-related travel, if one considers work done on the grounds at marinas, shipping channels, and ports. ...


    By FINN Corporation

  • Treatment of urea manufacturing facility effluent by Hopea odorata and Khaya ivorensis

    Phytoremediation is an environmentally friendly and sustainable alternative for treatment of nitrogen-enriched wastewaters. In this study, Ta-khian (Hopea odorata) and Lagos mahogany (Khaya ivorensis), two tropical timber plants, were investigated for their performances in treatment of urea manufacturing factory effluent with high nitrogen (N) content. Plant seedlings ...


    By IWA Publishing

  • Bioremediation of methylene blue dye using Bacillus subtilis MTCC 441

    Methylene blue (MB) commonly found in the textile industry effluent has been chosen as a model dye to investigate bioremediation using Bacillus subtilis MTCC 441. Both free cells and calcium alginate immobilized cells have been used to remove MB from the effluent. The operating variables of initial concentration of dye (20–60 mg/L), inoculum size (4–8%) and temperature (25–35 °C) have been ...


    By IWA Publishing

  • The binding of metal ions to molecularly-imprinted polymers

    Imprinting polymerization is a flexible method to make resins specific for different compounds. Imprinting polymerization involves the polymerization of the resin in the presence of a template, here cadmium ions or arsenate. The template is then removed by washing, leaving specific binding sites in the resin. In water treatment, the removal of toxic metal ions is difficult due to the limited ...


    By IWA Publishing

  • Don’t let your safety slip away

    What’s at Stake The banana peel has been a famous prop for slapstick comedy for decades, but there’s nothing funny about the number of injuries associated with slips, trips and falls. Slips, trip and falls consistently rank among the top causes of both disabling injuries and deaths in all types of workplaces, from construction sites, to manufacturing operations to warehouses to ...


    By SafetySmart

  • Case study - Filtralite Fredrikstad

    When renovating the filters the waterworks was interested in testing alternative filter media and replaced the anthracite layer in one of the filters with Filtralite® media for evaluation. Filtralite® is a filter media made of expanded clay and delivered by Saint-Gobain (Weber). In March 2002 Filtralite® media was installed on top of the existing sand in one out of totally 8 filters. ...

  • The 75-year history of soil sampling equipment supplier, AMS

    Almost 75 years ago in the small town of American Falls, Idaho, a man had a dream and a vision. Art Vollweiler had the philosophy that “everything was a work of Art.” Associating his name with everything he created meant something in 1942. It meant that everything he designed and built was made to last. Art’s assurance in quality has stood the test of time, and continues to be ...

  • Case study - Hong Kong

    To meet the forecasted increases in demand for potable water, the new Tai Po Water Treatment Works has been built in Hong Kong. The plant has a production capacity of 1200 Ml/day This solution strongly reduced the chlorine demand for the plant compared to the alternative execution with break point chlorina The water treatment works takes water from the river Dongjiang in the Guangdong ...

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