corrosion control Articles
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Corrosion Control with Air Stripping - Case Study
Location: California. Flow, gpm: 2,880. Contaminant: CO2. Solution: pH and Pb/Cu control w/o chemicals. ...
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Reliable Remote Power and Corrosion Control
Isaac Garaway (Qnergy’s CTO) pictured two Qnergy units thirty feet apart at the largest Corrosion trade show. It demonstrates the growing importance of reliable remote power to this industry. The U.S. has about 350,000 miles of natural gas pipelines. About half are more than fifty years old. Many of the pipes are corroded and leak methane. The proven solution is cathodic protection. A ...
By Qnergy
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Corrosion Control in data Centers
EU standard 2002/95/EC, or RoHS (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment), which was implemented in July 2006, restricts the use of hazardous substances in the manufacture of electrical and/or electronic equipment. One of the banned substances is lead (Pb), which is used for soldering circuit boards and other components in hard disks, ...
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Corrosion Control in data Center
CORROSIVE GASES: Small concentrations, serious consequences EU standard 2002/95/EC, or RoHS (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment), which was implemented in July 2006, restricts the use of hazardous substances in the manufacture of electrical and/or electronic equipment. One of the banned substances is lead (Pb), which is used for ...
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Challenges in addressing variability of lead in domestic plumbing
Current data indicates that lead exposure is of concern even at low concentrations. Corrosion is an important problem in drinking water because it can affect public health due to leaching of lead or other metals into the drinking water. For this reason, a corrosion control program is an important measure to help mitigate exposure to lead in drinking water. The biggest challenge that remains in ...
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H2S Oxidation System for Offshore Platforms
In May of 1994, Chevron USA Production Company selected the LO-CAT® II Hydrogen Sulfide Oxidation Process as part of the natural gas sweetening train for the Mobile Block 864 “B” Production Platform in the Gulf of Mexico. The entire sweetening train, consisting of both an amine unit and the LO-CAT II unit, is located on the platform. The LO-CAT II unit absorbs H2S from the amine acid stream ...
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Corrosion Inspection
Everything made of metal is susceptible to corrosion and can effect every non-service industry to one degree or another by the direct or indirect costs of corrosion prevention, mitigation or repair. The VJ-Advance (VJ-ADV) video borescope was used to take images above. The VJ-ADV is the ideal choice for any technician involved in corrosion control. No other borescope offers this level of ...
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Project - Corrosion Control in the Paper Industry
It is a fact that corrosion has a significant economic impact on an industrial scale. As an example, the results of a study carried out in the USA showed that the estimated annual cost due to corrosion was $276 million, which is approximately 3.1% of the country's gross domestic product (GDP). It is logical then that, during the last decades, great efforts have been invested to face this problem ...
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Simultaneous corrosion control and water quality improvement in water distribution systems
The effects of different dosages of sodium hexametaphosphate and sodium orthophosphate on corrosion inhibition and water quality in two model water distribution systems, and the corrosion inhibition mechanism on pipe walls were investigated. Results show that adding sodium hexametaphosphate and sodium orthophosphate can not only provide a remedy for the damaged cement coating surface, but ...
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Ethylene Plant Treatment Hydrocarbon Engineering
Ethylene is the most commonly produced petrochemical product. The bulk of annual commercial ethylene production is based on thermal cracking of hydrocarbon feedstocks with steam. Usual raw materials for pyrolysis are refinery gas, liquid petroleum gas (LPG), natural gas liquids (NGL), naphtha or gas oil. The production of ethylene is a very complex process, including cracking, cooling, ...
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UK experience in the monitoring and control of lead in drinking water
At the zonal scale (e.g. a city or town), random daytime (RDT) sampling succeeded in demonstrating both the need for corrective action and the benefits of optimised orthophosphate dosing for plumbosolvency control, despite initial concerns about sampling reproducibility. Stagnation sampling techniques were found to be less successful. Optimised treatment measures to minimise lead in drinking ...
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Ion ScaleBuster Water Conditioning - Commercial Laundry - Case Study
OVERVIEW Commercial Laundry facilities show common operational concerns. Keeping the machines free of scale buildup in a reliable and cost effective manner is important to business operations, and the hardnessfree water is essential for best detergent use. In this industry, a facility’s water system is one of the important resources and it’s quality must be properly maintained. ...
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An evaluation of sampling methods and supporting techniques for tackling lead in drinking water in Alberta Province
A demonstration project evaluated a range of sampling methods and supporting techniques for tackling lead in drinking water in Alberta Province, with the cities of Calgary and Edmonton as case studies. The sampling protocols specified by Health Canada in their 2009 guidance were confirmed to need further improvement and clarification; these sampling protocols produce results that are subject ...
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Application of Ozone in Cooling Water Systems
The first comprehensive study - bench-top laboratory investigations, pilot scale testing, and critical monitoring and evaluation of field applications - addressing the effects of ozone as a stand-alone cooling water treatment program is presented. The study also represents the first critical comparison of ozone-treated systems with non-treated systems. Excellent corrosion control can be attained ...
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A dynamic ventilation model for gravity sewer networks
To implement any effective odour and corrosion control technology in the sewer network, it is imperative that the airflow through gravity sewer airspaces be quantified. This paper presents a full dynamic airflow model for gravity sewer systems. The model, which is developed using the finite element method, is a compressible air transport model. The model has been applied to the North Head ...
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Performance and its indexes in the life-cycle design of the concrete structures
In order to promote the performance-based design methods used in civil engineering field, from the concept and approach of structure performance, the basic requirements of structural performance design are analysed, and the factors which need considering when choosing performance indexes are considered, and based on the existing structure design code, a three-level performance index system on ...
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Inhibition effect of phosphorus-based chemicals on corrosion of carbon steel in secondary-treated municipal wastewater
Secondary-treated municipal wastewater (MWW) could supply a viable alternative water resource for cooling water systems. Inorganic salts in the concentrated cooling water pose a great challenge to corrosion control chemicals. In this study, the inhibition effect of 1-hydroxy ethylidene-1,1-diphosphonic acid (HEDP), trimethylene phosphonic acid (ATMP) and 2-phosphonobutane-1,2,4-tricarboxylic ...
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Pearl river valley water supply district case study
Performance History and Discussion In-Pipe Technology implemented the first phase of a collection system Professional Services Program in 2001. Beginning in 2002, additional collection system basins were added to the services program. Currently, the treated areas include the North and South shore of the Pelahatchie Bay, the Main Harbor, and two Lagoon Waste Water Treatment Plant (WWTP) collection ...
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Micronized CaCO3: a feasible alternative to limestone filtration for conditioning and (re)mineralization of drinking water?
Worldwide limestone filtration is used in many treatment plants for the conditioning and (re)mineralization of drinking water to increase concentrations of Ca2+ and HCO3−, pH and saturation index, thereby improving the quality of the water regarding corrosion control, buffering and taste. Typical applications include (very) soft groundwater with (very) low alkalinity and desalinated water. In ...
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Republic Steel: CapDI for Cooling Towers - Case Study
Introduction & process description Water is often a hidden cost of industrial sites and can contribute significantly to operational costs. Cooling towers are used to reject heat through the natural process of evaporation providing cooled water across a broad range of applications. Due to evaporative losses, the water remaining in the cooling tower becomes concentrated with dissolved solids ...
By Voltea B.V.
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