sediment tank monitoring Articles

  • Bioavailability and bioaccumulation of sediment‐bound PCBs to carp

    The relative bioavailability of sediment‐bound polychlorinated biphenyls (PCB 138, 153 and 180) from a local contaminated site was examined using an in vivo carp model. Surface sediment from the PCB contaminated site and spiked canola oil containing equivalent masses of PCBs were respectively incorporated in the “sediment‐dosed diets” and “oil‐dosed diets” at 3 dose levels resulting in 6 ...


    By John Wiley & Sons, Ltd.

  • Fountain creek sediment collector - case study

    An innovative sediment management method, a 30-ft wide, high capacity, Sediment Collector, is currently installed in Fountain Creek, Pueblo, Colorado upstream of the confluence with the Arkansas River.  This installation is intended to demonstrate a new technology available to reduce the need for dredging.  The purpose of the Sediment Collector is to demonstrate the capability to lower ...


    By Streamside, LLC.

  • Two models for tank cleaning

    Fluid treatment specialist Algae- X International, Fort Myers, Fla., has expanded its Mobile Tank Cleaning (MTC) series with two new models. The MTC 500-AFR is an adjustable flow rate system for use with a wide range of tank sizes and fluid types such as diesel, biodiesel and hydraulic fluid. The MTC 1000-LX is the next generation of Algae-X’s MTC 1000 unit, now with stainlesssteel plumbing and ...


    By AXI International

  • Hydraulic modeling and water quality monitoring

    Untitled Document The 2004 IMTech conference held in Baltimore, Maryland, April 18-20, attracted hundreds of water professionals interested in the application of IT solutions in water supply and distribution ...


    By Innovyze

  • Guaynabo WTP in Puerto Rico saves thousands with UV254 Monitoring Package - Case Study

    Summary Dealing with fluctuating water sources is not an easy task for plant operators. Seasonal variation, heavy rain fall or accidental contamination events change the raw water quality, requiring immediate attention. This is a familiar scenario for Facility Manager, Nancy Ma. Cáceres Acosta at the Los Filtros Water Treatment Plant in Puerto Rico. She has been producing highquality ...


    By Real Tech Inc.

  • Retention and distribution of Cu, Pb, Cr, and Zn in a full-scale hybrid constructed wetland receiving municipal sewage

    This study was conducted to investigate the retention and distribution of Cu, Pb, Cr, and Zn in a hybrid constructed wetland (CW) that consists of both vertical baffled flow wetlands (VBFWs) and horizontal subsurface flow wetlands (HSSFs) with unique flow regimes and oxygen distribution. The heavy metal concentrations in water, sediments, and plant tissues in the hybrid CW were analysed. The ...


    By IWA Publishing

  • Enumeration of sulphate-reducing bacteria for assessing potential for hydrogen sulphide production in urban drainage systems

    Urban drainage structures have increasing demands which can lead to increasing hydrogen sulphide related problems forming in places where they have not previously been prevalent. This puts pressure on the methods currently used to monitor and diagnose these problems and more sophisticated methods may be needed for identifying the origin of the problems. Molecular microbiological techniques, ...


    By IWA Publishing

  • Performance of a half-saturated vertical flow wetland packed with volcanic gravel in stormwater treatment

    A half-saturated pilot-scale wetland planted with Acorus calamus was built to treat urban stormwater. The design comprises a sedimentation tank for pretreatment, and a vertical flow volcanic gravel wetland bed equipped with a recirculation device. Eighteen rainfall events were monitored in 2012. The treatment system achieved total removal efficiencies of 99.4, 81, 50, and 86% for ...


    By IWA Publishing

  • Sustainability evaluation of a primary school rainwater demonstration project in Tanzania

    Water shortages are widely prevalent in developing countries, affecting lives of people including schoolchildren, who miss classes while fetching water for daily use. A typical case was that of Mnyundo Primary School in Tanzania, East Africa. A rainwater harvesting (RWH) system was then constructed because of easy adaptability of the technology. The purpose of this study is sustainability ...


    By IWA Publishing

  • Best management practices (BMPS) for discharging water from a construction site

    Having problems on your job site with regulations related to pumping water from your site? Discharge water may carry harmful compounds that can, and have affected our water quality and the ecosystem, hence the environmental agencies concerns. When pumping from dewatering systems, storm water management ponds (SWMPs), excavations or trenches, or any form of surface runoff, BMPs are needed to ...


    By Aquatech Dewatering Company

  • Controlling Sludge in Lamella Clarifiers

    This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in ...


    By Partech (Electronics) Ltd.

  • Near-infrared spectroscopic assessment of contamination level of sewage

    We examined the use of near infrared (NIR) spectroscopy as a rapid technique for the evaluation of sewage quality. Influent water samples, primary sedimentation tank water samples, and final effluent water samples were collected from sewage treatment facilities in Nagoya, Japan and their NIR spectra obtained. Partial least squares (PLS) models for total phosphate (TP), total nitrogen (TN), ...


    By IWA Publishing

  • Fuel Polishing & Transfer Systems

    Earlier this year, Algae-X International came out with a totally new line of Fuel Polishing & Transfer Systems designed and built there in Fort Myers, Florida facilities. By listening to its customers, boat builders and yacht owners alike, Algae-X found out what they wanted to have as an on board fuel optimization package. The design is modular, so the right system can be chosen for each ...


    By AXI International

  • Case study - Performance testing PAHs in soil

    These case studies highlight Sitelab’s accuracy from customers who have used the UVF-3100D for testing Target PAHs. This test correlates well to U.S. EPA Method 8270 or similar GC methods, which includes a list of 16 or more compounds. The analyzer is fitted with special optical filters sensitive to this same group of hydrocarbons. Examples of UVF-3100D testing Polycyclic Aromatic ...


    By Sitelab Corporation

  • Seatac airport third runaway

    Active Treatment with 1% ChitoVan™ Chitosan Acetate The west side of Sea-Tac airport was widened by adding 11 million cubic yards of fill dirt to create the 3rd runway. Because the west side of the airport drains to Miller Creek, a protected NW stream, all of the construction stormwater had to be captured and treated prior to discharge. During the project over 5 billion gallons of ...


    By Dungeness Environmental

  • OSU Researchers Deploy Stevens Equipment in Study of Green Infrastructure Treatment for Groundwater Runoff

    Stormwater runoff pollution is a serious issue that faces almost every urban and suburban environment. In older city infrastructure, runoff from roofs, parking lots, and streets flows directly into the sewer system and must be handled by the municipal wastewater treatment facility, increasing the amount of work the system must undertake. For the past 30 years, the infrastructure for stormwater ...

  • Geotube Dewatering Technology Used To Alleviate Acid Runoff Problem from Mine Tailings - Case Study

    Construction on 1-99 in Pennsylvania unearths pyretic rock; Geotube units used to contain minerals that could contaminate groundwater. Many states are faced with the problem of dealing with tailings and residues from mining, road building, and other sources that pose a threat to groundwater. Residues can come from both old inventories of stockpiled material, as well as those materials ...

  • Wastewater-Primary Treatment

    Primary Treatment is defined as a wastewater treatment process that takes place in a rectangular or circular tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated. This process achieves solids separation. The solids readily available to settle to achieve sedimentation will do so in a settling tank referred as a clarifier. On the ...

  • Spolchemie site remediation and NanoRem field site application

    Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the ...


    By NANO IRON s.r.o.

  • Wallingford solutions enable an integrated approach to modeling

    Of the many advantages to Wallingford Software’s InfoWorks suite of solutions, one that is particularly valued in today’s demanding modeling environment is their reputation as the gold standard for integration. The solutions allow one interface to answer a wide range of questions, rather than requiring a user to laboriously work through a range of modules or packages. Such key but separate ...


    By Innovyze

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