clarify make-up water Articles

  • Treating Your Water with a Biological Filtration System

    Poor-quality drinking water can be an enormous hazard to your health. News stories in recent years have reported experiences of unfortunate individuals who have unknowingly consumed tainted or otherwise unsafe drinking water that included high levels of lead, calcium, arsenic, and other chemicals that have serious negative health effects. Before you take another sip of your water supply, consider ...

  • Clarifier maintenance

    Clarifiers are expensive, to buy or repair, and their downtime can be costly in fines imposed by regulatory agencies and in community ill will. Regular maintenance, an annual inspection of the mechanism and an occasional touchup of the paint or coating system are simple and inexpensive proactive steps that will usually prevent most problems. Three components of all clarifiers require maintenance: ...


    By WesTech Engineering, Inc.

  • Controlling Sludge in Lamella Clarifiers

    This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in ...


    By Partech (Electronics) Ltd.

  • Stress Free Clarifier Operation: Use of State-Point Analysis to make Secondary Clarifier Operating Decisions at Northwest Cobb WRF

     ABSTRACT The Northwest Cobb Water Reclamation Facility, located northwest of Atlanta, Georgia is owned and operated by the Cobb County Water System. During 2003, the plant began experiencing some settling problems, and blanket levels began to rise. To address this issue and avoid any potential compliance problems, the plant staff focused on analyzing the clarifier operation, and using ...

  • ACTIFLO® Clarifiers are Heart of Antioch, CA Recycled Water Facility

    Due to a number of economic and ecological factors, the California State Water Resources Control Board requires power plant developers to evaluate the use of recycle water for cooling tower needs. For this reason, Calpine (a power plant developer) formed a public-private partnership between itself, Bechtel Enterprises and the Delta Diablo Sanitation District (DDSD) to build a new recycled water ...

  • High Rate Clarifier Start-up and Operation in Shreveport, Louisiana

     ABSTRACT In 2004, the city of Shreveport received permits from the Louisiana Department of Environmental Quality and the U.S. Environmental Protection Agency to construct and operate a high rate clarifier (HRC) at both the North Regional and Lucas wastewater treatment plants. The HRC provides wastewater treatment for flow in excess of the peak plant capacities. Each HRC unit uses ...

  • Reclaimed Municipal or Industrial Wastewater for Power Plant Cooling & Boiler Feed Make-Up Water

    For centuries, water was considered a commodity product and used with little or no restriction. In today’s modern society, water is now being considered a precious resource and considerable effort is put into protecting, recycling, and restricting its use freely. State and Federal agencies have put in place guidelines and regulations restricting its use, especially for industrial use. ...

  • Rectangular vs. Circular Clarifiers: Which is better?

    Both rectangular and circular configurations have been commonly used in clarifier basins. The relative merits of the two have been discussed at length for decades. Historically, the selection of rectangular versus circular clarifiers has been based on past experience and the preference of the design engineer or design company. Initial wastewater treatment plant designs in the United States were ...


    By Brentwood Industries, Inc.

  • High Rate Treatment of CSO/SSO Flows Using a High Density Solids Contact Clarifier/Thickener - Results from a Pilot Study

    ABSTRACT A two-month pilot study was conducted at the Village Creek Wastewater Treatment Plant in Birmingham, Alabama to test the technical feasibility of utilizing a ...

  • Chemically Enhanced Primary Treatment for a Large Water Reclamation Facility on a Constricted Site - Considerations for Design, Start-Up, and Operation

    To provide greater treatment capacity and to meet new water quality criteria for discharge to the Chattahoochee River, Cobb County Water System (CCWS) construction a new 60 million gallon per day (mgd) liquid treatment facility at the R.L. Sutton Water Reclamation Facility (Sutton WRF). A restricted site (25 acres) combined with an effluent limit on total phosphorus of 0.5 mg/L resulted in the ...

  • Water Quality & Treatment Centers

    A look at the quality of water and the importance of inspecting the integrity of water treatment centers. Water…clear…cold…refreshing. It’s often your “go-to” beverage for quenching thirst after a vigorous activity. We are very fortunate that often within arm’s reach, rests a glass of water. Without hesitation or worry, you can pick it ...


    By Deep Trekker Inc.

  • Wash Water Questions and Answers

    When the subject of Wash Water Recycling comes up there are many questions that can arise. The following are a few that are frequently asked are: Will it have an odor? What will its’ clarity be? How much is recycled? The above questions seem very basic but can at times create a complex response because of ...


    By ESD Waste2Water, Inc.

  • Do not make the waste energy saving lamps into a scourge

    As early as August 1, 2008, the national list of hazardous waste had been the recovery of the energy saving lamps included. However, for waste energy saving lamps may harm caused to the environment and human health, the public did not know. Until now, energy saving lamp recycling policy is still blank. How future waste disposal? Than ordinary incandescent lamp,  ...

  • Water treatment case study

    Wastewater is any water that has suffered in quality by human intervention. Often, wastewater is being treated for re-use as drinking water or for other purposes. As high levels of nutrition are available in these waters, algae may grow rapidly as well as other micro-organisms such as bacteria. Algae can compete for nutrients against the bacteria in charge of sludge reduction and can also clog ...


    By LG Sonic

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • EPA Clean Water Act: New Regulations re: `Waters of the United States`

    The Environmental Protection Agency (EPA) published a final rule defining the scope of waters protected under the Clean Water Act… The rule will ensure protection for the nation’s public health and aquatic resources, and increase CWA program predictability and consistency by clarifying the scope of ‘‘waters of the United States’’ protected under the ...

  • Loch Turret water treatment works

    Actiflo® high rate sand ballasted clarification & multiflo lamella sludge thickening plant The Loch Turret upgrade was the largest drinking water project for Scottish Water in the latest investment period. The scheme was taken over in 2010 and is delivers approx 85 million litres of drinking water per day The Client Scottish Water is the UK's fourth largest ...


  • Zhuhai --a membrane based water treatment plant

    The Facility At the time it was built, the Guangdong Zhuhai Power Station set a number of firsts for China. Not only was it the largest thermal power plant in terms of unit size , it was the first to use Reverse Osmosis Water Treatment and it was the first to be financed without a multilateral or government guarantee. Zhuhai was also EPC Mitsubishi Heavy Industries’ first turnkey ...

  • Novel Approach to Storm Water Management for BNR Facilities

    ABSTRACTOne of the major challenges faced by most wastewater treatment facilities today is the need to develop and operate a sound and responsive storm water management program in the absence of an assured and adequate source of funding. This paper will discuss various strategies, such as flow equalization and off-line storage of MLSS, which could be implemented to mitigate the negative impact of ...

  • The New Economy of Water: The Risks and Benefits of Globalization and Privatization of Fresh Water

    Executive Overview New voices are beginning to be heard in the debate over water, and new ideas – good and bad – considered. Among the most powerful and controversial of these new ideas is that water should be considered an “economic good” – subject to the rules and power of markets, multinational corporations, and international trading regimes. In the last decade, this idea has been put ...


    By Pacific Institute

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