floating weir Articles

  • Denitrification and Floating Sludge

    What is Denitrification? Denitrification is the conversion of soluble nitrate to nitrogen gas in the nitrogen cycle. For denitrification to occur, three factors are needed: Presence of Nitrate Anoxic conditions (no free dissolved oxygen) A carbon source (soluble BOD) Floating Sludge Denitrification is useful and ...

  • Case study – Gem-D series

    Introduction Clean Water Technology, Inc., the creator of the Gas Energy Mixing (GEM) System, introduces their newest in technology The GEM - D Series for municipal water and wastewater applications. The GEM-D Series is a hybrid dissolved air – flotation system. What makes the GEM-D Series better than the rest? Introduction of air through Liquid Solid Gas ...


    By Clean Water Technology, Inc.

  • Open Channel Flow - The use of Level sensors for open channel flow measurement

    Open Channel Flow - The use of Level sensors for open channel flow measurement Level sensors from SolidAT are implemented in Open Channel Flow applications. In these types of applications, the level sensor is installed above a special water flow structure and accurately measures level of flowing water or wastewater. The sensor then calculates flow through the structure ...

  • Oil Skimmer makes oil/water separator more efficient

    Industrial facilities depend on oil/water separators to separate oil from its waste water. While oil/water separators are a helpful component to a plant's wastewater system, oil/water separators traditionally do not provide an efficient method of removing oil once it has been separated from the waste stream. Traditionally, the separator industry has either used overflow skimmer pipes or weirs, or ...


    By Oil Skimmers, Inc.

  • Mononov provides stormscreen solution to sewage problem

    The installation of a Mono Stormscreen unit now allows the incoming raw sewage to be thoroughly screened at storm level, ensuring large solids are retained in the main flow to treatment and that the stormwater discharge from inlet meets consent requirements. The Stormscreen is designed to provide a self-cleaning, self-powered alternative to existing mesh screens for handling storm overflows. ...

  • Mononov specified for europe’s largest storm overflow

    Through its Spanish distributor, Albosa, Mono has supplied 32 stormscreens and 46 progressing cavity pumps to the UMAC Wastewater Treatment plant, which was designed to handle a maximum flow of 129,600m3 per day. These high performance stormscreens, which offer an alternative to conventional mesh and powered screens for handling storm overflows, have been installed to ensure that no contaminated ...

  • Mononov provides stormscreen protection for lake district beauty spot

    The station’s existing screens had previously caused system blockages that posed a threat of subsequent flooding. Looking to install an extra level of screening into the system, United Utilities were impressed by the flow-powered operation and the selfcleaning action offered by the SC1A15064 Mono Stormscreens. “The Bowness CSO overflow chamber is located under a main road and accessed via a ...

  • Case study – oil removal from central collection basin

    Customer Profile: Largest manufacturer of newspaper stock and toilet tissue in Toronto, Canada using recycled paper as the primary ingredient in their production process.  Customer collects paper, newsprint and magazines from “blue boxes” and other sources throughout Ontario Province.  Customer separates the paper collected and makes recycled paper ...


    By SkimTech Inc.

  • Oil/water separator and oil skimmer companies work together to help power generation facilities

    Power generation facilities depend on oil/water separators to separate oil from its waste water. While oil/water separators are a helpful component to a plant’s wastewater system, oil/water separators traditionally do not provide an efficient method of removing oil once it has been separated from the waste stream. Knowing what his customers were faced with, Dave Goding, president, Mercer ...


    By Oil Skimmers, Inc.

  • Wastewater-Primary Treatment

    Primary Treatment is defined as a wastewater treatment process that takes place in a rectangular or circular tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated. This process achieves solids separation. The solids readily available to settle to achieve sedimentation will do so in a settling tank referred as a clarifier. On the ...

  • Solving waste oil management and removal problems in power generating plants

    If your plant is like most, it is doing a good job of preventing oily water waste and waste oils from escaping into the environment. But at what cost? As labor resources dwindle, operating and maintaining drainage systems, oil separators, and sometimes inadequate oil removal equipment is expensive. Paying higher than needed costs for waste oil disposal, filtration and water treatment due to these ...


    By Oil Skimmers, Inc.

  • Usen

    “Oil is not only an important sector of our industry but also a symbol of the independence of our country, of the hope for a better future”. These were the words of President Nursultan Nasarbayev in September 1999, commemorating the 100th anniversary of the formation of the oil and gas industry. The oil industry in Kazakhstan has existed for more than 100 years, however a significant boom in this ...


    By Flottweg SE

  • Skimmer technology - An appraisal of mop skimmer technology case study

    Skimmer technology offers many alternative types such as mop, disc, drum, brush, belt, tube or weir skimmers. 1.0 Background A World patent was awarded to Shell international in 1967, for the use of a continuous belt of material, synthetic or otherwise, which would remove oil from the surface of water, by means of adsorption or absorption. From that time until the ...

  • Inland diesel spill case study

    Introduction In January 2000 an oil spill occurred in the North of England. It was estimated up to 30,000 litres of diesel fuel had escaped the fuel storage tanks of a major factory due to a burst pipe. Fortunately most of the spilled oil found its way to a nearby drainage facility owned by the local Water Authority. Due to neglect the drainage outlet pipe that feeds ...

  • Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

    When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...


    By BaySaver Technologies, Inc.

  • Quaker oats uses skimmer to reduce wastewater BOD

    The Quaker Oats plant in Peterborough, Ontario, Canada produces some seven million cases of Harvest Crunch® cereal and cake mixes annually. In the process, residue from the conveyors, dryers and other processing equipment ends up on the floor. Periodic equipment washdowns add water to the solid and liquid residue, which contains edible fats, starches and sugars. During house-cleaning operations, ...


    By Abanaki Corporation

  • Skimming Oily Wastewater

    As large generators of oily wastewater tighten effluent controls, the U.S. Environmental Protection Agency (EPA) is targeting smaller generators. Some of the firms receiving their attention are smaller manufacturing plants, automotive garages, mobile equipment service shops and truck farms. Many of these firms do not have access to a sanitary sewer system that will accept oily wastewater. Because ...


    By Abanaki Corporation

  • Introduction to Decentralized Packaged Wastewater Treatment (PWWT) Systems - PDH Article

    Learning Objectives After reading this article, you should understand: Functions and processes of a decentralized PWWT system; Design considerations of a PWWT system. Overview "Clean water will be the oil of the 21st Century." The accuracy and magnitude of this statement is resonating worldwide. ...

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