city cleaning Articles

  • Water Treatment System Types and Their Benefits

    Water is one of the most important utilities in the world. It’s used for bathing, cooking, washing clothes, cleaning dishes, and drinking. If you get your water from the city, you trust your tap water to be clean and healthy. It goes through a treatment plant before it reaches you, so it’s perfectly purified when it reaches you—right? Unfortunately, this isn’t always the ...

  • This Designer Is Cleaning Up City Smog and Turning It into Jewelry

    A Dutch designer has created a new tower to filter city smog and — hopefully — help end China’s air pollution problem. China’s ongoing struggle with smog is notorious. Rapid industrialization paired with an initial lack of ...


    By Camfil Ltd

  • San Francisco bay area city cleans Mossy mess - case study

    In Contra Costa County, east of San Francisco, we installed an IWS Screen to remove all types of water borne debris including moss, grass, hyacinth and tumbleweeds.   The installation reduces man hours and risk of injury from raking trash racks as well as keeping service lines clear. This project included: Traveling Screen(s) Elevator Pump ...


    By International Water Screens

  • Adding Quality to City Life

    The Special Service District's impact shines throughout downtown. Within the district's 760 acres, Tampa's Downtown Clean Team Beautifies the streets, while the softer side of security, Tampa's Downtown Guides, patrol by foot and bike. The six Clean Team members collect more than two tons of trash and other debris every day. In 2004, they kept 720 tons of garbage off the city streets. Tampa's ...


  • Glasgow City Council, UK

    Two years ago the Glasgow City Council announced a major clean-up of the Clyde as part a regeneration programme. The clean-up was regarded as an important element in attracting tourists to the cities riverside and its continued development. However two rivers, the Cart and Kelvin flow into the River Clyde and bring with them hundreds of tonnes of floating litter and debris right onto the ...


  • Exchange of Transformers in the castle and in the city of Marburg

    The challenge for the team of ABB Environmental Services, led by Helmut Bergel, was a full service project, including the exchange and replacement of transformers contaminated with the environmental pollutant PCB (Polychlorinated Biphenyls, a class of chlorinated hydrocarbons that have been used extensively since 1960 for a variety of industrial uses like coolants in transformers and dielectrics ...

  • Ideal for city jobs - Case Study

    Ulrik Sinding, owner of Djursland Kloakservice ApS (a sewage service company in Trustrup, Denmark) was practically born into the vacuum tanker business. Already in 1979, as a 15-year-old, he was hired by the company that his father, Orla Sinding, started in 1964. In 1989, at the age of 25, Ulrik Sinding took over the company, which has installed Samson pumps in most of its vacuum tanker trucks. ...


    By Samson Pumps A/S

  • 10 top tips for sustainable cities

    As global population grows, urban population is growing even faster — with 2.5 billion more city dwellers expected by 2050, according to the United Nations. And while urbanization can bring benefits in terms of economies of scale, social cohesion, technological innovation, transportation efficiency and more, cities can also be breeding grounds for poverty, pollution and malaise. To help ...


    By Ensia

  • Sustainable Cities: From a Vision to Reality

    The C40 Cities Mayors Summit in Johannesburg, South Africa kicks off today (Feb. 4). It’s the fifth biennial meeting of the C40 Cities Climate Leadership Group, a collection of mayors from cities around the world committed to advancing urban solutions to climate change. The theme for the event is “Towards resilient and ...

  • Increased plant efficiency, City of Checotah, Oklahoma

    The City of Checotah, Oklahoma was experiencing excessive solids, foam and grease in their 0.5 MGD extended aeration activated sludge treatment facility. With a daily average flow of 0.25 million gallons per day, the plant had tremendous amounts of foam and grease in the aeration basin with the sidewalls caked with sludge. The centerwells of the clarifier were filled with foam and grease. The ...


    By Byo-Gon, Inc.

  • China awakes to clean transportation

    In the following months and at least until the Beijing Olympic Games in 2008, Chinese roads and cities, particularly in Beijing and Shanghai, will be a choice testing ground for different types of clean individual and collective low-pollution vehicles, such as fuel cell, hybrid and electric vehicles. We already knew that hybrid microturbine buses were to be road tested in China. Now ...

  • Diesel Particulate Filters in the City of London - Case Study

    The catalysed wall flow soot filter was designed and installed in the fourth quarter of 2008 to treat the Particulate Matter (PM), Volatile Organic Compounds (VOCs) & Carbon Monoxide (CO) in the exhaust gases from the outlet of an MTU 12V000G23E emergency generator installed in the basement in the financial district London EC2R. AirProtekt Catalysed Wallflow Particulate Filter is a system ...


    By AirProtekt Limited

  • Working Towards Watershed Management in the City of Atlanta

    In 2002, the leadership of the City of Atlanta kicked off a comprehensive program to have the cleanest urban streams and rivers in the country within a decade, recognizing that the City’s future economic growth, jobs, affordability, and quality of life all depend on clean water. Atlanta is faced with many obstacles on the way to meeting this challenge; a few of these include: Ongoing ...

  • Restaurant grease trap, City of Irving, Texas

    The Problem Oil and grease from restaurants and fast food establishments have presented a major problem to wastewater treatment plants for years. There have been various additives; some have worked well for the removal of grease but cause problems later in the wastewater treatment plant With the changing regulations and enforcement as to what can be discharged into a system, about the ...


    By Byo-Gon, Inc.

  • Cities are finally treating water as a resource, not a nuisance

    From Houston to Melbourne, the surprising ways urban areas are dealing with water woes Memorial Day barbecues and parades were thwarted this year in Houston when a massive storm dumped more than 10 inches of rain in two days, creating a Waterworld of flooded freeways, cars, houses and businesses, leaving several people dead and hundreds in need of rescue. ...


    By Ensia

  • California’s city of roseville chooses HERO ZLD

    The Facility The Roseville Energy Park (REP) will be a natural gas-fired, combined-cycle electrical generating facility. The project, planned for a 12-acre site, will be owned by the city and will use state-of-the-art equipment to locally generate about 60 percent of Roseville’s electricity needs. The Roseville Energy Park will use recycled wastewater from the nearby Pleasant Grove ...

  • Recovering Wasted Energy: Beneath the city streets

    Sewage heat recovery graphNo one likes to think about it, but city planners and engineers often have no choice but to deal with it, and that’s sewage. Though techniques vary somewhat from place to place and from facility to facility, sewage generally flows down pipes with multiple steps in place designed to remove and treat as many solids as possible, before returning the freshly distilled ...


    By DDI Heat Exchangers Inc.

  • The Clean-Up of a Tragedy

    There's been a violent crime, a serious accident, or a suicide has occurred. The police, investigators, and paramedics have left the scene. The remains of this terrible tragedy are still there. You assume the local police, fire department, or the city has someone to take care of this, however, you are told it is up to you. You are the victim, part of the family, the property owner, or local ...

  • The natural way to clean wastewater

    John Todd founded Ocean Arks International in the 1980s, where he started to experiment with processes that mimic natural ways to purify wastewater. He built a greenhouse and ran sewage through a series of tanks, with plants suspended in the flowing waters, and constructed marshes made of sand and gravel. No chemicals were added, but plenty of aquatic creatures from snails to small fish were ...


    By BioCycle Magazine

  • Feasibility analysis for biomass in cities, counties and facilities

    The commercial waste industry includes all those who collect waste from the simplest “collect waste and transport to a landfill” to the more complex “collect waste and process into re-usable components and energy.” This article will cover how we can collect material and fuel a clean energy system for our immediate future, while saving clean water and air. ...


    By Waste Advantage Magazine

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