sanitary engineering Articles

  • 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.

  • True Partnership: “It’s like pure is a true extension of our staff team—that’s what makes their relationship with WSSC work so well”

    The best relationships are built on trust and responsiveness. Collaboration between The Washington Suburban Sanitary Commission (WSSC) and Pure Technologies began in earnest nearly a decade ago, and continues today as the two partners work together as one unified team to ensure the overall health of ...

  • Atlanta upgrades to InfoWorks CS to aid environmental program

    The City of Atlanta, Georgia, in the USA, has purchased InfoWorks CS to help it meet stringent US Environmental Protection Agency (EPA) and Georgia State Environmental Protection Division (EPD) requirements for discharge of its wastewaters to the Chattahoochee River. The Chattahoochee, one of the smallest rivers in the US supplying a metropolitan area, provides 80% of the city’s water needs. ...


    By Innovyze

  • 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.

  • InfoNet Provides an Ideal Solution for CMOM and GASB 34 Compliance in the United States

    CMOM: a best practice framework CMOM (Capacity, Management, Operations, and Maintenance) is a flexible, dynamic set of regulations from the Environmental Protection Agency of the United States that enables municipalities and utilities to identify and implement accepted wastewater industry best practices and promote proactive asset management. It aims to achieve a number of goals: Better ...


    By Innovyze

  • Developing dry-weather flow and RDI/I models using regression analysis and unit hydrography

    InfoWorks CS has been used to build an accurate sanitary sewer flow model for Jefferson Parish, Louisiana, despite there being gaps in the available input data. Reliable predictions of the dry-weather and rainfall-dependent flows were derived by using techniques including unit hydrography and regression analysis to determine the required parameters. Jefferson Parish is close to New Orleans in the ...


    By Innovyze

  • Municipal solid waste management in Khoram Abad City

    This paper presents an overview of current municipal solid waste management in Khoram Abad city. Necessary data was collected from municipality information, direct observation, taking photography, Interviewing with responsible persons and a questionnaire. According to data collected by the local authorities, the waste generation rate is estimated to be 800 g/cap. d   with density of 243 ...


  • DelAgua Kit Case Study, Daisy Adams in The Gambia

         DELAGUA KIT CASE STUDY, DAISY ADAMS IN THE GAMBIA Daisy Adams undertook a study with Water for Africa in ...


    By DelAgua Group

  • Experiences from the full-scale implementation of a new two-stage vertical flow constructed wetland design

    This paper describes the results of the first full-scale implementation of a two-stage vertical flow constructed wetland (CW) system developed to increase nitrogen removal. The full-scale system was constructed for the Bärenkogelhaus, which is located in Styria at the top of a mountain, 1,168 m above sea level. The Bärenkogelhaus has a restaurant with 70 seats, 16 rooms for ...


    By IWA Publishing

  • How Much Could You Save by Avoiding a Consent Decree?

    In 2012, St. Louis, MO (Metropolitan St. Louis Sewer District) set a record for the most expensive sewer consent decree in history at $4.7 BILLION to be spent over the next 23 years. The cause of this consent decree and the cause of most consent decrees are overflow events that allow untreated waste into the nearby lakes, streams, river, or other nature areas. There are typically two types of ...


    By EnTech Engineering Company

  • PROJECT BRIEF - Saved Over $1 Million in Unnecessary Expenses - Santa Barbara, California

    Temporary Flow Monitoring Santa Barbara, CA - The City of Santa Barbara (CSB) serves nearly 100,000 customers. During the seasonal rains, deteriorating and aging sewer pipes permit unwanted I/I to enter the system raising the risk of sanitary sewer overflows. Santa Barbara recognized that a more comprehensive understanding of their systems performance was necessary to more proactively manage ...


    By ADS Environmental Services

  • Georgia’s innovative approach to CMOM implementation - Georgia member association & state collaborate to improve SSO approach

    In 1998, the Georgia Environmental Protection Division (EPD) adopted a Zero Tolerance Policy for the area in and around metro Atlanta to address sanitary sewer overflows (SSOs). This policy required EPD to take an enforcement action against utilities for any SSO, regardless of the size, volume, or cause of the release. In response to this enforcement-based SSO strategy, at the request of its ...

  • Surveillance and Improvement of Peruvian Drinking Water Case Study

    The surveillance and quality control of public water supplies are vital prerequisites for the protection of public health. In practice however, the two activities of surveillance and quality control are often confused and inadequately implemented, especially in the case of surveillance in less developed countries. The two are clearly distinguished by the World Health Organization (1984): ...


    By DelAgua Group

  • The best alternative to the protection of the UF membranes - Case Study

    Advance solutions to the recirculation of water in swimming pools. Problem The public swimming pools are continuously used during all the week for many people for making sport, amusement or relax. In these installations, the visual aspect and the sanitary conditions must be guaranteed all the time. In indoor public pools, even with the mandatory previous shower and the use of ...


    By Sistema Azud, S.A.

  • Saving Energy and Improving Quality - Case Study

    Location: Melville, New York Owner: Newsday Inc. Engineer: Phase 1: Cameron Engineering Phase 2: H2M (Holzmacher, McLendon & Murrell) Contractor: Newsday Inc. & Benson Construction and Development Stringent Effluent Requirements Located in Melville, NY, Newsday Inc. provides a daily newspaper for the metropolitan area of Long Island. More than 30 ...


    By WesTech Engineering, Inc.

  • CMOM set to clean up in the USA

    Regulatory pressure on public utilities is a regular occurrence around the world, but some requirements are fundamental enough to effect a major change in the way an industry performs. The CMOM program for sewer collection utilities in the USA promises to be such an initiative. Its impact will be profound, as Tom Davies, President of Wallingford Software Inc, explains in this article. The CMOM ...


    By Innovyze

  • 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 ...

  • More Power. More Control.

    Cuyahoga County pumps value to its community through greater control, standardization and technological advancements. Cuyahoga County is the most populous county in Ohio, with nearly 1.4 million residents. Part of Greater Cleveland, the county is named after a Native American word meaning "crooked river." With more than 63% of its total area made up of water, the county strives to foster strong ...


    By Gorman-Rupp Co.

  • Spiral-Wound Sepralators: The Range of Options

    Introduction Spiral-wound membrane elements (sepralators) were used mainly for basic water purification until the mid to late 1970s, when broader uses began to receive attention. New applications often required special consideration such as; sanitary construction for the dairy industry, high temperature for food processes and waste streams, and high pressure capability for desalination. In ...


  • Scanning proposed borehole locations for Utilities case study

    Environmental and engineering firms often are tasked with performing soil borings for monitor well installation as part of a Phase II Environmental Site Assessment. This task becomes more challenging when the borings are to be installed in gasoline stations, right of ways or other areas where there are numerous underground utilities that are either unmarked or not properly located. GeoView can ...


    By GeoView, Inc.

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