sewage back pressure News

  • Dosing upgrades enhance process performance at Hogsmill Sewage Treatment Works

    Three separate upgrades to the chemical dosing plant at Thames Water’s Hogsmill Sewage Treatment Works in Surbiton near Kingston-upon-Thames have improved efficiency and performance at the site and are also designed to meet the latest phosphate discharge consents into the River Thames. Working with partners, the upgrades were designed, built and installed by chemical dosing specialist, Gee & ...

  • Peristaltic technology aids in prevention of ‘feminised’ male fish

    Chemically-disrupted water streams are causing a substantial increase of ‘intersex’ fish. Nicola Martin reports on how peristaltic technology is addressing the problem of water pollution through more effective treatment techniques.It’s the story that has become a national curiosity: male fish swimming in our rivers have begun spontaneously developing female characteristics. Research dating back ...

  • New Submersible Level Sensors Offer Unique Removable and Reusable Cage for Significant Savings in Harsh Environments

    LOGAN, UT - Automation Products Group, Inc. introduces the PT-500 Submersible Liquid Level/Pressure Transmitters. The PT-500 features a vented, watertight cable and delivers a high precision 4-20mA solid-state signal while submerged up to 450 ft. A unique (patent pending) removable stainless steel cage connects to the sensor with a simple snap ring and enables users to save significantly on ...

  • Supercritical water oxidation presented as alternative to incineration

    Finding environmentally benign waste disposal options is becoming more critical. A process now being commercialised, supercritical water oxidation is demonstrating extremely efficient organic waste destruction (99.99%) plus excellent environmental characteristics (none of the emissions associated with incineration). The process is especially suitable for the treatment of wastewater and sludges ...


    By SCFI Group Limited

  • Gaza’s water supply in danger of collapse, warns UN report

    The Gaza Strip’s underground water system is in serious danger of collapse after recent conflict compounded years of overuse and contamination, a report released by the United Nations Environment Programme (UNEP) today warns. The UNEP report on the environmental condition of Gaza following Israel’s military operation in the region in late 2008 calls for the aquifer – supplying 1.5 million ...


    By United Nations

  • ROMAG aquacare ag under new management

    The succession arrangement planned at the Cleantech company ROMAG, experts in water-technology in Düdingen Switzerland has been realised. At the beginning of the year, CEO Kurt M. Gloor handed over operative management to Beda Broder. Four years ago, the company changed its name to «ROMAG aquacare ag», after operating for over 60 years with the addition of «Pipes and ...


    By ROMAG aquacare ag

  • In overview: the Hako dosage and filling systems

    Filling the clean water tank is time consuming and ties the operator to the machine. As a result valuable working time is lost. Incorrect dosage leads to less than optimum cleaning results and, in the case of over dosage, in addition puts additional pressure on materials and sewage as well as the costs of cleaning agents. Hako dosage systems prevent under dosage or over dosage and their negative ...


    By Hako GmbH

  • UV light helps to ensure safe bathing during the summer months

    • Ultraviolet light kills bacteria in wastewater without the need for chemicals and allows safe bathing in the Isar. • Reliable and environmentally friendly method • Used in the project “Clean Isar” in a large number of clarification plants in Bavaria/Germany. In addition to the conventional processes for cleaning water – such as the use of chemicals like ...


    By Heraeus Holding GmbH

  • Portable biogas monitoring for process control & analysis

    Regular, reliable and accurate monitoring of biogas yield is essential for optimising process performance, treatment and control. There are many solutions and products available using the latest gas measurement techniques however not all are reliable, maintain the required accuracy or assist with minimising potential downtime. Biogas is produced by anaerobic digestion of biodegradable materials, ...


    By Geotech

  • Britain’s largest water company prosecuted for 5km river pollution

    A water company whose careless operational practices decimated the aquatic life in an iconic urban river has been fined GBP 125,000 and ordered to pay GBP 21,335 in clean up and investigation costs. Thames Water Utilities Limited, Britain’s largest water company, pleaded guilty at an earlier hearing to allowing a large quantity of industrial strength chlorine to spill into the River Wandle from ...

  • Reclaiming Wetlands using UV light

    UV disinfection specialist Berson has helped the town of Carnation in Washington State, USA create an environmentally-conscientious way of dealing with wastewater, using Berson\'s InLine 7500+ UV systems. Carnation, a community of about 1,900 residents, has never used a central sewage system, relying instead upon individual septic tanks and drainage fields to handle its ...

  • Liquid Macrofiltration Market to Reach $5 Billion by 2009

    Untitled Document The market for filters used for separation of larger particles from liquids (macrofiltration) will grow from $4.4 billion in 2006 to $5.1 billion in 2009. ...


    By The McIlvaine Company

  • Certified Industrial Hygienists Offer Assistance Following Historic Floods in the Carolinas

    Parts of South Carolina have been inundated with heavy rain and floodwaters as a low pressure system and moisture from Hurricane Joaquin have delivered up to two feet of rain in some areas.  Countless homes, institutions and businesses have suffered severe damage as roofs succumbed to the deluge while other structures have been completely flooded. As the waters begin to recede this ...

  • Puget Sound businesses redefine ‘clean tech`

    Reluctantly, Shoreline Mayor Cindy Ryu took the spray gun in hand, aimed it at a stainless-steel food rack and squeezed the trigger.A blast of water erupted, jerking her arm back. Ryu smiled and handed the gun back, knowing that this forceful spray was not ordinary cold water. It was cold water loaded with ozone, a powerful sanitizing agent.Ozone International, a Bainbridge Island company, has ...

  • WRI helps launch first eco-audit of Mesoamerican reef

    This week, two of my colleagues, Ben Kushner and Lauretta Burke, travelled to Mexico and Belize, respectively, for the launch of a new multinational evaluation of reef management by governments, NGOs, and the private sector. The launch events took place in Belize City, Belize; Cancun, Mexico; Guatemala City, ...

  • From worn tires, small firm creates lifesaving shields

    A small Southern Tier company has developed a super rubber product out of waste tires that engineers say could revolutionize flood control, earthquake survivability and homeland security. 'This is a quantum leap in the application of waste tire material,' said Mark W. Glynn, consulting engineer and principal of Geotechnical Engineering of Lockport. ReTread Products of Great Valley in ...

  • Recycling wastewater would bring economic benefits to Tel Aviv Metropolitan Area

    The economic viability of wastewater reuse projects could be better determined using methodology from a new study. The authors developed a five-step cost-benefit analysis framework to assess a planned wastewater reuse project within the catchment of the Yarqon River, in Tel Aviv Metropolitan Area, Israel. It was found that the scheme could have a net present value of $4.83 (€4.34) million ...

  • Australia’s south east water switches to Innovyze to support enterprise-wide geospatial hydraulic modeling

    Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced that South East Water Limited (SEWL), Australia, has awarded Innovyze a substantial contract for its premier InfoWorks WS water modeling software to replace the utility’s existing modeling ...


    By Innovyze

  • EPA completes cleanup of mercury spill in santurce, Puerto Rico

    The Environmental Protection Agency (EPA) has completed emergency response activities following two mercury spills in Santurce, Puerto Rico. EPA is warning parents and the public not to keep mercury at home and to exercise caution when faced with accidental spills of mercury. The most recent incident began January 25, 2011 at the Fedrecio Asenjo Middles School in Santurce’s Barrio Obrero ...

  • Disinfecting Marine Vessel Ballast Water with UV

    Disinfecting Marine Vessel Ballast Water with UV -Hanovia UV disinfection system helps operators meet IMO discharge regulations- To assist operators of cruise ships, tankers, semi-submersibles, jack-up rigs and other large ocean-going vessels to meet the International Maritime Organisation’s (IMO’s) ballast water discharge requirements, UV disinfection specialist Hanovia has partnered with ...

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