sanitary wastewater treatment Articles

  • Ideal for onsite chlorine applications - Case Study

    Water treatment could be applied to various fields, our anodes are currently used for Sodium Hypochlorite and Electrolysis of water. Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. It can be also applied in sanitary wastewater and industrial ...


    By BioMicrobics, Inc.

  • Spreadsheet Implementation of Activated Sludge Model #1 for Sequencing Batch Reactors

     KEYWORDS Sequencing Batch Reactor, Simulation Modeling, ASM1, Flow Routing BACKGROUND Many small municipal wastewater treatment plants in North America use sequencing batch reactors (SBR) to provide secondary treatment. SBRs are a fill-and-draw variant of the activated sludge process in which a single reactor is used to mix raw ...

  • Alkaline fermentation of waste activated sludge stimulated by saponin: volatile fatty acid production, mechanisms and pilot-scale application

    Volatile fatty acid (VFA) production stimulated by saponin (SP), an environmentally friendly bio-surfactant, was investigated during sludge alkaline fermentation in laboratory studies and pilot applications. The combined use of SP and pH 9 condition significantly enhanced VFA production to approximately 425 mg COD/g VSS, which was 4.7-fold of raw sludge and 1.5-fold of sole pH 10 adjustment ...


    By IWA Publishing

  • Manic 5 and Manic 5 PA (Hydro Québec), Quebec case study

    Part of an hydroelectric complex counting four dams, Manic 5 and Manis 5 PA are two power houses installed in the valley of the Manicouagan river, north of Québec. Unveiled in 1970, this plant represents the higher multiple-arch and buttress dam in the world. For the Manic 5 and Manic 5 PA sanitary water treatment, Hydro-Québec mandated the Groupe-conseil TDA to find a compact ...


    By H2O Innovation

  • Project: Dumaguete city septage management system - Philippines

    The Septage Management System of the city of Dumaguete consists of the first city-wide septic tank maintenance program in the Republic of the Philippines to be financed by the local government coupled with a low-cost, low-maintenance decentralized wastewater treatment facility.  The project was motivated by an assessment of the city which found there to be 20,000 poorly designed and ...


    By IWA Publishing

  • Planned Biosolids Facility Forms Nucleas for Eco-Complex

    ABSTRACTCatawba County owns and operates the Blackburn Landfill, a sanitary landfill for the disposal of municipal solid waste (MSW). Methane generated within the landfill is collected and utilized to generate electricity which is sold to Duke Power. In the process of combusting methane to generate electricity a significant amount of heat energy is produced, which is not currently utilized. ...

  • Hydraulic hydrodynamic modeling as an effective management tool for large collection systems - the LA story

    There are a many difficult challenges when it comes to managing large and complex wastewater collection systems such as the one the City of Los Angeles owns and operates. The City’s sewer system serves close to 4 million people in about 550 square miles of service area. The network consists of 6,500 miles of sewers varying in size from 8 inches to 150 inches in diameter. Of those sewers ...

  • Multifaceted sewer improvements program eliminates sewer connection moratorium and system overflows

    The sewer system serving Borough of Jewett City, Connecticut dates from the late 1800’s and was originally constructed as a combined sewer system with the discharges directed to the area rivers. In the 1970’s, the raw sewage discharges from the Borough system were removed from the rivers and redirected to a newly constructed wastewater treatment facility. However, the overflows from the ...

  • HS-200 Lowering company costs and liability

    A major printing company was experiencing difficulties with managing their wastewater treatment system due to a higly concentrated oily water influent. The grab samples performed by the local sanitary district exhibited high levels of BOD, COD and oil and grease levels in the discharge water. The problem was traced back to their compressor condensate discharge. The company has ...


    By Hydrosil International

  • Distance Education: Past, Present, and Future

    ABSTRACTAlternative training technologies are being evaluated with increasing interest in distance education and online training. Evaluations show the benefit of distance education because of limited staffing, shrinking budget dollars for travel to short schools and conferences, and the convenience, availability, and quality of online training selections. In many industries today, distance ...

  • Dynatec Provides MBR System for Hazardous Landfill

    The Problem A hazardous waste landfill in Belleville, MI, owned by the Environmental Quality Company had a problem. They needed to develop a treatment process to remove COD, high TDS, heavy metals, phenol, PCB’s, Ammonia, and Molybdenum from the landfill leachate. Current treatment comprised of chlorination and activated carbon treatment was very costly. ...


    By Dynatec Systems Inc.

  • Integration of a CMOM program, service delivery makeover program, and CMMS at Pasco County Utilities, Florida

    Pasco County, located on the Gulf Coast of central Florida, has experienced rapid growth over the past several years. As a result of the County’s rapid growth, addressing issues such as wastewater treatment facility permitting, ability to meet increasingly stringent regulatory standards, increases in Sanitary Sewer Overflow (SSO) occurrences, operation and maintenance of current and acquired ...

  • New Energy BFP - Case Study

    Clarification and Dewatering Control Industrial TSS The New Energy Corporation facility in South Bend IN produces 380,000 M3 per year (100 million gallons per year) of ethanol from corn feedstock. It also produces about 272,000 tonnes per year (300,000 tons per year) of carbon dioxide and 299,000 tonnes per year (330,000 tons per year) of distillers' dried grains with solubles (DDGS) as ...


    By Komline-Sanderson

  • Rehabilitation of a Large Semi-Elliptical Sewer

    ABSTRACTThe Sanitation Districts of Los Angeles County (Districts) own, operate, and maintain a wastewater treatment and collection system that includes approximately 1300 miles of sanitary sewers ranging from 6 to 144 inches in diameter. A portion of the Districts’ Joint Outfall “A” Trunk Sewer was constructed of cast-in-place reinforced concrete having a semi-elliptical cross section and ...

  • Financing the Clean Water Atlanta Initiative

    ABSTRACTOver approximately a 15-year period, the City of Atlanta will invest nearly $4 billion in its water and wastewater infrastructure, in part to ensure compliance with Consent Decrees entered into in the late 1990s related to Combined Sewer Overflows (CSOs) and Sanitary Sewer Overflows (SSOs). This investment has occasioned execution of a strategic financial ...

  • World’s largest compressible media filtration plant eliminates combined sewer overflows, with potential for dry-weather use

    The City of Springfield, Ohio, recently opened its 100 MGD enhanced high-rate treatment facility, designed to treat and disinfect combined high-volume stormwater and wastewater flows generated by wet-weather conditions. Utilizing EPA-documented Compressible Media Filtration technology – FlexFilter™ from WesTech – the system can also provide tertiary filtration and disinfection ...


    By WesTech Engineering, Inc.

  • Techniques for Oil in Water Analysis

    The people responsible for conducting oil in water measurements understand that the measurement can be quite challenging. Wastewater from different sources can contain many different types of hydrocarbons, each with different chemical make-ups. On top of the lack of chemical uniformity in different oils, there has been a ...


    By Spectro Scientific

  • A Canadian township uses dewatering units to achieve septage disposal compliance - Case Study

    In 2002, Ontario, Canada's legislature and the Ministry of Environment (MOE) produced a policy paper announcing their intent to eliminate the land application ofuntreated septage. While 90% of residents in Ontario used local sanitary sewers to dispose of their waste and therefore were unaffected by the policy, there were still more than one million residents in rural areas using septic tanks. ...

  • Moyno 2000 Model G2 Progressing Cavity Pump features open throat design

    Moyno, Inc. offers the Moyno 2000 Model G2 Progressing Cavity Pump. This versatile, high-performance pump features an open throat hopper design with an auger for positive product feed when handling semi-dry or high solids content sludges. The 2000 Model G2 Pump features Moyno's crown gear-type universal joint - the heaviest duty drive train configuration available in the industry. It is capable ...


    By Moyno, Inc.

  • Adapter bacteria control oil spill in bulk

    Introduction Microbac was called in to advise on a required treatment for an integrated bulk oil handling facility and sea-land terminal, receiving, storing and shipping a wide variety of liquid fuels, inorganic chemicals and petrochemicals, many of which are toxic to microorganisms. The variable and complex waste streams from tank truck cleaning, ballast and tank cleaning discharges from ...


    By Microbac Ltd

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