secondary containment testing Articles

  • Secondary removal of chlorophenolic contaminants in water

    In this study, several factors important for the design of a water supply treatment system for the removal of trace amounts of organic contaminants by microorganisms in a fixed-film were assessed. This entailed evaluating the effect of seeding with adapted microorganisms on the acclimation time, determining what depth of support material was required for removal of contaminants and observing the ...


    By Inderscience Publishers

  • Testing of concrete to determine the effects on groundwater

    The need for a more sustainable construction industry, as well as increasing pressures on landfill space, have led to an increasing use of recycled and secondary materials as aggregates in concrete1,2. However, if users are to have full confidence in these materials, it is important that they are shown to have neither an adverse impact on the properties of concrete, nor on the environment, ...

  • Comparison of biodegradation performance of OECD test guideline 301C with those of other ready biodegradability tests

    The OECD Guidelines for the Testing of Chemicals lists seven types of tests for determining the biodegradability of chemical compounds (301A–F and 310). In this study, we compared the biodegradation performance of test guideline (TG) 301C, which is applied in Japan's Chemical Substances Control Law, with the performance of the other six RBTs listed in the guidelines. TG 301C specifies use of ...


    By John Wiley & Sons, Ltd.

  • Chignik Lake, Alaska: Remote Community Water Treatment Plant Pilot Testing

    Chignik Lake, Alaska is a small community located on the south side of the Alaska Peninsula. The community’s only potable water source is one groundwater well, which is located within close proximity to potential contamination sources. Due to this threat of contamination and per the recommendations contained in the sanitation facilities master plan completed on behalf of the community in 2000, ...

  • Evaluation of UV System Performance and Challenges of UV Validation Testing at the Laguna County Sanitation District

    ABSTRACTThe Laguna County Sanitation District (LCSD) Water Reclamation Plant, with a design capacity of 3.7 mgd, produces tertiary water that was designed to meet California Title 22 unrestricted re-use criteria. The disinfection in LCSD is provided by an in-line Aquionics Model 7500 medium pressure UV system containing four UV banks. California Department of Health and Services (CDHS) require ...

  • Full Scale Test on Chemical P Removal During a Step Feed BNR Study at John E. Egan Water Reclamation Plant

    ABSTRACTA full scale nutrient removal study was conducted at the 30-MGD John E. Egan Water Reclamation Plant with a single-stage nitrification activated sludge process and sand filtration. One quarter of the plant’s secondary treatment capacity was used in the study. Simultaneous nitrogen removal through a step feed BNR process and phosphorus (P) removal by chemical precipitation with ferric ...

  • Properties and Behavior of Explosives

    Information presented for SVOCs may also be appropriate for many of the contaminants presented in this subsection. The term 'explosive waste' commonly is used to refer to propellants, explosives, and pyrotechnics (PEP), which technically fall into the more general category of energetic materials. These materials are susceptible to initiation, or self-sustained energy release, when present in ...

  • Arsenic concentration in drinking water of Bihar: health issues and socio-economic problems

    More than 10 million people residing in 13 districts of the state of Bihar are facing the acute problem of arsenic contamination in drinking water. The objective of this paper is to quantify arsenic in drinking water, and to understand the associated health problems, health costs and socio-economic issues in the region. In the study, a field test kit was used to test the arsenic concentration ...


    By IWA Publishing

  • Response of Different Types of Biosolids to Simultaneous Dewatering and Pathogens Inactivation by Electrokinetic System

    Only electrokinetic system and its effect on the inactivation of pathogenic organisms in biosolids were investigated. Bench scale experiments were conducted in a series of electrokinetic (EK) reactors. Ten EK reactors were set up with different types of sewage sludge: primary, secondary (attached growth culture), secondary (activated sludge), and anaerobically digested sludge, coming from Auteuil ...

  • Oil Storage Requirements of the SPCC Regulations

    ABSTRACTThe SPCC regulations entail numerous requirements for the storage of oil. The intent of this paper is to summarize several of the complex requirements associated with oil storage at a facility subject to the SPCC regulations. INTRODUCTIONThe Spill Prevention, Control, and Countermeasure (SPCC) regulations are far reaching requirements promulgated by the ...

  • Great Island Tank 4 and bund refurbishment - case study

    Lining works to refurbish the existing tank farm secondary containment bund and HFO Tank 4 are ongoing at Great Island CCGT project. Lining Tech are contracted in to Balfour Beatty Ireland on this design and build project for the client Tank 4 Works Installation of 1,140m2 of 1mm HDPE leak detection liner to the floor of HFO tank 4 Fabrication and installation ...

  • Feds propose new reg to remove leaking storage tanks from service

    With spills and leaks from storage tank systems that contain petroleum products continuing to pose significant health and environmental risks, the federal Department of the Environment proposed recently a new regulation to reduce the risk of contaminating soil and groundwater. The proposed Storage Tank Systems for Petroleum Products and Allied Petroleum Products Regulations would replace the ...

  • Saline Pond Multi-Layer Liner System - Case Study

    Gas operation benefits from the conversion of a single-liner system to a double-liner with leak detection monitoring Extensive gas operations near the North Saskatchewan River in Fort Saskatchewan, Alberta, are understandably closely regulated. To help the client remain well above compliance requirements and expand their leak detection capabilities, Nilex implemented the ...


    By Nilex

  • Bulk Storage and Piping Case Study

    Background: This major steel manufacturer was founded in 1900 in and established the first formal research department in the steel industry in 1910. It grew through the development of specialty steels and new technology. Among the many "firsts" was the development of continuous rolling technology. This company holds more U.S. patents than any other specialty steel company. ...


    By Mech-Chem Associates, Inc.

  • Case study - Bespoke Solutions

    PROJECT 450kg/hr animal remains incineration project in accordance with PG5/3, The Secretary of State’s Guidance Note for the incineration of animal remains under 10 tonnes per day Lincolnshire, UK PROJECT DESCRIPTION The purpose of the plant was to provide an incineration solution which complimented the clients livestock slaughter ...


    By Todaysure Matthews

  • Side By Side By Side: The Evaluation of Three High Rate Process Technologies for Wet Weather Treatment

    ABSTRACTMost large combined sewer communities face significant financial investment to address wet weather compliance issues. Innovative, cost-effective methods of dealing with wet weather flows is a must to prevent spiraling rate increases for rate payers. High rate clarification and high rate filtration systems are becoming the technology of choice for treating wet weather flows. The City of ...

  • LEGAL LOOKOUT: EPA Proposes Amendment to SPCC Plan Requirements

    On Dec. 12, 2005, the EPA proposed to amend Spill Prevention, Control, and Countermeasure (SPCC) plan requirements to reduce the regulatory burden these requirements impose on covered entities. The agency also released a document entitled SPCC Guidance for Regional Inspectors to assist regional inspectors in assessing a facility's implementation of SPCC requirements. As such, the document is an ...


    By Bergeson & Campbell, P.C.

  • Wastewater Treatment Plant - Newport, New Hampshire - Case Study

    THE CHALLENGE Newport, New Hampshire is a small New England community of 6000 residents. The treatment plant treats primarily residential sewerage, although Newport is home to an internationally known firearms company, which also sends its waste to the municipal plant for treatment. This 1.3 MGD plant which operates at an average of .75 MGD, was built in 1971 and upgraded in 1988 to ...

  • The Evolution of Plug Flow BNR at Durham AWWTP

    ABSTRACTThis paper describes experiences with plug flow nitrification and plug flow biological nutrient removal (BNR) at Durham Advanced WWTP. The kinetic advantages of the plug flow configuration for nitrification have been recognized for some time; however, limited plug flow BNR process design information was available at the time (1997). The case study began with pilot testing in 1998, during ...

  • Reclaimed Water Disifection Alternatives to Avoid NDMA and THM Formation

    ABSTRACTThe Sanitation Districts of Los Angeles County (Districts) operate seven tertiary water reclamation plants (WRPs) with a combined treatment capacity over 200 million gallons per day (MGD). Chloramination is used at these WRPs for effluent disinfection. It was recently discovered that chloramination results in the formation of N-nitrosodimethylamine (NDMA), a compound with high ...

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