sanitary engineering Articles

  • History of sanitation and hygiene technologies in the Hellenic world

    Sanitation and hygiene technologies have existed in ancient Hellas since the Bronze Age (ca. 3200–1100 bc), when extensive sewerage and drainage and other elaborate sanitary structures were known in Minoan palaces and towns. Classical and Hellenistic periods should be considered as the most progressive eras in the design of sanitary engineering. At that time anatomically shaped ...


    By IWA Publishing

  • Energy & Environmental Technology- Solid - Liquid Separation Technology

    Tajhiz Sanaat Baran's mission is to be the provider in the Environmental & Energy Solutions. Our purpose in Energy fields is directed to the engineering consultants and offering update technologies in consumption optimizing and energy saving of Buildings and Factories. In the Environmental fields, we offer High-Tech solutions and make equipment in Water Treatment, Industrial and Sanitary ...


    By TSB Co.

  • Refinery Sour Water

    The refinery needed to meet the discharge requirements to the local sanitary sewer for the 2,000,000 gallons that was stored. The water is high in sulfides (up to 4,000 ppm) and the limit for discharge was 0.1 ppm. The best and least complicated and costly method uses the Floccin 1105 followed by post ozonation. The results of the finished water are being tested at an EPA certified analytical ...


    By Integrated Engineers Inc.

  • Case study - Redvale Energy Park pleased with GA3000 PLUS

    Application Continuous inline monitoring of incoming landfill gas Equipment GA3000 PLUS Location New Zealand Customer Revdale Energy Park Requirement The ...


    By Geotech

  • Ready or not: The Changing Nature of Collection Systems Oversight

    ABSTRACT The collection and conveyance of sanitary wastewater is a principal tenet of sanitary engineering that has helped move developed countries into the modern urban age. The focus of collection system agencies has historically been to convey wastewater to treatment facilities. The operational practices of these agencies have generally been geared toward infrastructure maintenance and ...

  • Application of batch tests to assess antibiotic loads in anaerobic processes

    The presence of antibiotics in drinking water and wastewater has not been widely studied because the sanitary engineering sector mainly focuses on the removal of organic matter and nutrients. There is a lack of environmental regulations for pollutants like antibiotics. Batch tests analyse biodegradability to measure the anaerobic degradation potential of the substrate, or they can be used as ...


    By IWA Publishing

  • The Challenge of the Future: Operating Emerging Disinfection Technologies

    ABSTRACTThe Clean Water Act (1972 and 1977) established the basis for regulating pollutant discharges into the waters of the United States. This Act contains many provisions regulating pollutant discharges and surface water quality in the United States. This act has also been modified by numerous revisions and amendments since it was enacted in 1972. The National Pollutant Discharge Elimination ...

  • An Introduction to Ventilation Butterfly Valve

    Overview: Ventilation butterfly valve is used in chemical industry, building materials, power plants, glass and other industries in the ventilation, environmental engineering dust or hot air gas pipeline. It acts as a gas medium to regulate and control the flow or shut-off in the pipes. ...


    By Adamant Valves

  • Transformation of an existing physicochemical plant for iron and manganese removal by the application of biological processes

    A system for removing iron and manganese in groundwater, based on biofiltration technology, was developed at the Center of Sanitary Engineering of the National University of Rosario, Argentina. This process has been successfully applied in several new water treatment plants in Argentina. This paper describes the transformation of an existing plant for iron and manganese removal in groundwater ...


    By IWA Publishing

  • Aquidneck Place wastewater system information

    Institutional facilities typically have larger wastewater flows with lower organic concentration than commercial waste streams.  However, some institutions such as schools may have exceptionally high concentrations of ammonia nitrogen and very erratic peak flows.  It is critical to understand the institution’s lifestyle and sanitary routines when designing a treatment system. The ...


    By Aquapoint

  • Removal improvement of bacteria (Escherichia coli and enterococci) in maturation ponds using baffles

    Korba wastewater treatment plant is a conventional activated sludge followed by three maturation ponds (MP1, MP2, MP3) in series acting as a tertiary treatment. The first study of wastewater treatment plants showed that the effluent concentration of Escherichia coli and enterococci at the outlet of the (MP3) varies between 103 and 104CFU/100 ml. After the hydrodynamic study conducted by Rhodamine ...


    By IWA Publishing

  • Modified landfill design for sustainable waste management

    Waste management, being one of the most important aspects of urban development, is gaining importance among developing nations. Landfills, which were initiated for hazardous waste management and subsequently transformed into sanitary landfills, have been the most widely adapted practice for municipal solid waste management worldwide. However, the conventional design of landfills not only fails to ...


    By Inderscience Publishers

  • Long-term behaviour of a gravity-driven dead end membrane filtration unit for potable water supply in cases of disasters

    The frequentness of serious natural disasters will rise against the background of climate change in the next decades. One of the most severe impacts of natural disasters is the interruption of drinking water supply. Contaminated water causes the death of thousands of people worldwide every year. Mobile waterworks used by aid organizations are sophisticated systems with high demand of energy, ...


    By IWA Publishing

  • Mountbolus sewage treatment plant

    Address: Mountbolus Village, Co. Offaly Client: Offaly Co. Co. Engineer/Client Contact Details: Sanitary & Environment, Offaly Co. Co., County Buildings, Tullamore, Co. Offaly David Hogan S.E.E, Ph: 0506 46800 Completion Date: March 2000 Population Equivalent: 400 P.E. Value: € ...

  • Market waste composting in Lima, Peru

    The Empresa de Servicios Municipales de Limpieza de Lima (ESMLL and the Pan American Center for Sanitary Engineering and Environmental Sciences (CEPIS) carried out in 1993 a joint research project oriented toward the recovery and use of market waste for compost production to benefit from the wastes generated in Lima.. This pilot project represents an effort aimed at solving the major waste ...


    By ORBIT e.V.

  • Case Study: Barboursville, the “Best Little Village in the state,” just got better

    Barboursville, which bills itself as the “Best Little Village in the State of West Virginia,” has just completed an impressive upgrade to its wastewater treatment lagoon.  What makes the upgrade impressive?  Try this: Increased capacity of the existing lagoon from 600,000 gpd to 1,500,000 gpd. Had no disruption of treatment during construction. Total project costs of less than ...


    By Environetics, Inc.

  • DELUMPER Bulk Bag Unloader (BBU)

    The DELUMPER Bulk Bag Unloader (BBU) is a heavily constructed system designed for convenient unloading materials even if they contain lumps and agglomerates. This unit employs a gyrator to effectively fluidize the materials for dependable discharge from the bags.  Then,  a heavy duty built-in DELUMPER crusher conditions and freshens the product. The result is an effective pre-engineered ...


    By Franklin Miller Inc.

  • Surveillance of the chemical and microbial quality of drinking water for safe water supply in an urban area

    To ascertain the quality of drinking water, surveillance of drinking water quality was conducted in Bhopal. The water supply to water treatment plants (WTPs) is from Kolar dam and Upper Lake. There was no significant change in water quality at the Kolar WTP on a day-to-day basis except in summer, when the manganese content of raw water was 0.3–0.4 mg/L, which was removed during treatment. The ...


    By IWA Publishing

  • New York City Chooses Ductile Iron Pipe For First Pipe Bursting Project

    When the City of New York Department of Design and Construction (DDC) determines a pipeline needs to be installed, any private utility using the City’s right-of-way, e.g. ConEd, Cable Vision, Key Span and Verizon, is responsible for the cost of relocating and supporting, if possible, any conflicting lines prior to or during construction. This cost can be extremely high since utility corridors are ...

  • CH2M HILL’s John Gaston to receive one of the Water Industry’s highest honors

    John Gaston, a 25-year employee of global full-service engineering, construction and operations firm CH2M HILL, has been selected by the American Water Works Association (AWWA) to receive the Abel Wolman Award of Excellence. This is the Association’s premier award, recognizing those whose careers in the water profession exemplify vision, creativity, and excellent professional performance ...


    By CH2M Hill Companies, Ltd.

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