water circulation system Articles

As more utility contractors are moving up to larger rigs, they are also moving toward the use of solids removal ( solids control ) systems. These solids control systems are not stand-alone units. They are part of the drilling mud system along with the ...

May 21, 2015

An open circulating cooling system is a method to remove process heat and is applied frequently for industrial purposes. In these systems heat is removed by evaporation of water to the surpassing air in the cooling tower. However there are some environmental disadvantages such as addition of chemicals to prevent the cooling water system from microbial growth and corrosion. The application of ...

Jan. 1, 2005

By Paques B.V.

As more utility contractors are moving up to larger rigs, they are also moving toward the use of solids removal ( solid control ) systems. These solid control systems are not stand-alone units. They are part of the drilling fluids system along with the drilling fluid and the fluid pump. ...

Jun. 5, 2015

Abstract This paper describes an alternative, patented, non-chemical cooling water treatment system that has proven to be effective in controlling/eradicating bacteria and Legionella. The VRTX system is a side-stream treatment system and includes a mechanical VRTX unit and a ...

Jan. 1, 2004

With increasing human populations comes the corresponding increased need for improving water quality in lakes, wastewater ponds, potable water reservoirs, and other water storage facilities. Providing circulation within water reservoirs of all types has long been known to provide meaningful benefits, but the costs to achieve sufficient circulation through diffused aeration or mechanical mixers ...

Feb. 16, 2007

By Medora Corporation

Research on scale inhibition is of importance to improve the heat transfer efficiency of heat exchangers. The combined effect of high voltage electrostatic and variable frequency pulsed electromagnetic fields on calcium carbonate precipitation was investigated, both theoretically and experimentally. Using energy dispersive spectrum analysis, the predominant phase was found to be CaCO3. The ...

Sep. 29, 2014

By IWA Publishing

Phosphonate is a commonly used corrosion and scale inhibitor for a circulating cooling water (CCW) system. Its discharge could cause eutrophication of receiving waters. The iron–carbon (Fe/C) micro-electrolysis technology was used to degrade and remove phosphonate from discharged CCW. The influences of initial pH, Fe/C ratio (FCR) and temperature on phosphonate removal were investigated ...

Aug. 7, 2014

By IWA Publishing

A challenge for the future is to improve recirculation of organic waste, including its contents of nutrients, between urban and agricultural ecosystems. The main reason for developing recirculating systems is to conserve energy and nutrients. The aim is to enable production of high quality and quantity food and feed on a long-term basis, to develop safe and economically feasible systems, to ...

Jan. 2, 1999

By ORBIT e.V.

The photocatalytic degradation process has been recognized as a low-cost, environmentally friendly and sustainable technology for water and wastewater treatment. As a key carrier of the photocatalytic process, the semiconductor TiO2 has been used in many studies. Analysis and modelling of hydrodynamics in the three-phase flow system can provide useful information for process design, operation ...

Aug. 29, 2017

By IWA Publishing

Introduction Midwest Generation Joliet Station in Illinois has two coal-fired units, Unit 7 and Unit 8. Roth 550 MW units are located on the Des Plaines River and have been in operation since 1963-1964. The circulating water system is a once-through system comprised of a bar rack, traveling screens, circulating water pumps and reversible condensers. The original condenser tubes on Unit ...

Aug. 1, 2009

By Intek, Inc.

Human life on land is vitally dependent on fresh water along with food and air. Many areas in the world do not have access to fresh water. Growing demands of freshwater resources are creating an urgent need to develop self sustained system to meet the demand. At present, many distillation methods are available like reverse osmosis, thin film distillation multi-effect fresh evaporation but they ...

Oct. 24, 2014

By Inderscience Publishers

General Circulation Models (GCMs) suggest that rising concentrations of greenhouse gases will have significant implications for climate at global and regional scales. Increased concentration of greenhouse gases in the atmosphere leads to change in air temperature and precipitation. Temperature and precipitation are important parameters for water management, so the climate change studies on ...

Dec. 20, 2010

By Inderscience Publishers

Untitled Document As the annual onslaught of blue-green algae (cyanobacteria) blooms continues to plague fresh water lakes and reservoirs, the use of copper sulfate to control the problem has ...

Dec. 15, 2004

By Medora Corporation

This report describes how treatment of landfill leachate by means of forced circulation vacuum evaporation provided: an environmental benefit from use of biogas as power supply a big saving in disposal cost due to waste volume reduction a return on investment of less than two years Introduction Solid Waste Management in Greece has been remarkably upgraded during the last ...

Apr. 13, 2007

By Veolia Water Technologies Italia S.p.A.

The filtration and water treatment specialist Puresep provide leading soft drinks manufacturer with a state of the art system to reduce their water usage Puresep were contacted to look at ways the soft drinks manufacturer could reduce the amount of rinse water sent to drain – in order to help them achieve their water reduction targets Following an onsite review of the current rinse ...

Mar. 29, 2013

By Water Active Ltd

Plants for industrial water processing and wastewater treatment designed using a modular approach have an advantage in a global implementation strategy. The German company, EnviroChemie, head quartered in Rossdorf has been developing, manufacturing and installing systems lo clean industrial wastewater, circulate water and condition process water for over 35 years. Its engineers and technicians ...

Jan. 16, 2015

By EnviroChemie GmbH

A self-contained pH control and monitoring sys- tem for ready mixed operations yields clean water for recycling or permitted discharge to the environment. Fortrans' Model 5000S uses car- bon dioxide gas to neutralize high-pH process water, offering precise alkalinity monitoring and control of water in pits, settling basins and other containment areas, as it lowers total suspended solids. Designed ...

Aug. 1, 2009

By Fortrans, Inc.

INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

Apr. 1, 1991

By SUEZ Water Technologies & Solutions (formerly GE Water & Process Technologies)

For industrial companies using a cooling tower for its facility, some type of cooling tower water treatment system is usually necessary to ensure an efficient process and long equipment service life. If cooling tower water is left untreated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the ...

Oct. 26, 2016

By SAMCO Technologies, Inc.

Stannous chloride is an alternative corrosion control in aqueous systems. Stannous chloride’s effectiveness as a better corrosion inhibitor has been demonstrated in both municipal drinking water and industrial cooling water applications and its use has a reduced impact on rivers and streams. Orthophosphate and other phosphate compounds are the most common treatments for reducing corrosion in ...

Jan. 29, 2008

By AS Inc