demineralization Articles
-
Application of backwashing with demineralized water for UF fouling control in UF-RO desalination
The effectiveness of demineralized water backwash on ultrafiltration (UF) fouling control of seawater is investigated in this study. Fouling experiments for two different backwashes (UF permeate and demineralized water) were conducted at three fluxes: 120, 180 and 240 L/(h m2) to compare their fouling control efficiency on UF membranes. Results show that backwashing with demineralized water ...
-
Mechanisms regulating bioavailability of phenanthrene sorbed on a peat soil‐origin humic substance
The organic matter–mineral complex plays an important role in regulating the fate of hydrophobic organic compounds (HOCs) in the environment. In the present study, the authors investigated the microbial bioavailability of phenanthrene (PHE) sorbed on the original and demineralized humic acids (HAs) and humin (HM) that were sequentially extracted from a peat soil. Demineralization treatment ...
-
A pilot-scale study of backwashing ultrafiltration membrane with demineralized water
This study investigates the effectiveness of different backwash waters on ultrafiltration (UF) fouling control on a pilot-scale setup. Surface water and ion exchange (IEX) pretreated surface water were used as feed water. Three backwash waters were tested: demineralized water, UF permeate and nanofiltration (NF) permeate. Results show that backwashing with demineralized water substantially ...
-
Emineralizers: big problems, small solutions
Introduction There are thousands of demineralizer around the world that provide high purity water for boilers, turbines, industrial and commercial processes. Many of these demineralizers are over 25 years old. In almost all cases, raw water composition, flow rates, daily throughput requirement and treated water quality have all changed. Today, these demineralizers are working harder than ever. As ...
-
CZ - Reverse osmosis in emulsions production: lower costs and healthier employees - Case Study
Emulsions lacked the quality required Emulsions for cooling and lubrication, used in metalworking, are an essential part of production in Česká zbrojovka. The company dilutes them with water to achieve the ideal concentration. The problem was the quality of the emulsions. They had to be replaced frequently, because they started to decay and contained large amounts of bacteria. This ...
-
What Is Demineralized Water?
Demineralized water is water without its mineral and salt ions. Demineralised water is also known as demi water or deionised water. Introduction to Demineralized Water (or Deionized Water) Demineralized water that has had the non-water related ions removed. Demineralization of water is the removal of essentially all inorganic salts by ion exchange. In this process, strong acid cation resin ...
By YASA ET
-
QUA Provides FEDI technology to Sohar Refinery
Project Background Orpic (Oman Oil Refineries and Petroleum Industries Company) required a thermal seawater desalination solution as part of its Sohar refinery improvement project to ensure an uninterrupted supply of fresh feed water to for its boilers. Orpic decided that a Multi Effect Distillation with Thermal Vapor Compression (MED-TVC) Seawater Desalination system was suited for its water ...
-
Aquatech supplies demineralized water treatment plant in madagascar
The Facility Ambatovy, located in Madagascar, is a world-class, large tonnage nickel project that is positioned to be among the world’s biggest lateritic nickel mines. It is a lifelong project with an annual design capacity of 60,000 metric tons of nickel and 5,600 metric tons of cobalt. The site is located approximately 50 miles east of the capital of Madagascar, Antananarivo, and near ...
-
Taking the pressure off desalination
California-based PAX Pure hopes to offer a new solution to water scarcity with its groundbreaking water purification tool. Developed by Jay Harman and Tom Gielda, PAX Pure technology desalinates and demineralizes water without membranes, moving parts or chemicals. Instead, the technology simply mimics high-altitude conditions. The big challenge with conventional desalination and demineralization ...
By Ensia
-
UF Allows Use of RO for Power Plant’s Water Demineralization - Case Study
PROJECT DETAILS LOCATION Buenos Aires, Argentina CUSTOMER Central Puerto Power Plant SOLUTION Complete Water Demineralization Plant TECHNOLOGIES Ultrafiltration, Reverse Osmosis, Continuous Electrodeionization A power plant in Buenos Aires needed to increase its demineralized water production and save money on operating expenses, but the poor quality of the available raw water from a ...
-
Valve innovation drives ion technology
A NOVEL multiport distribution valve is at the heart of a new ion exchange system that reduces plant operating costs and capital expenditure by improving liquid–resin contact efficiency. The patented IONEX process can be used for resource recovery and purification in a wide range of industries, as well as water demineralization. Ion exchange systems are already used extensively for water ...
-
Aerobic treatment for Reuse of Wastewater at Fish processing plant - Case study
Advanced technology treats difficult effluent for reuse and eliminates the need to buy imported water Background Tadel SA is a fish flour and fish oil processing company in Rocafuerte, Ecuador. It produces 100 tons of flour a day from fish waste, resulting in approximately 300 m3/d of wastewater. The wastewater is a combination of washing water, boiler blowdown, and cooling-tower water, as ...
-
South Coast Steam Power, Puerto Rico and QUA’s Fractional Electrodeionization
Project Background Puerto Rico Electric Power Authority (PREPA) is the owner of South Coast Steam Power Plant located at Guayanilla in the island of Puerto Rico, about 150 KM south of San Juan. This power station is one of PREPA’s oldest units and uses an oil fired boiler as part of its generation process. The plant decided to replace an old, antiquated ion exchange-based ...
-
LG electronics chooses HERO/DEMIN/UPW
The Facility LG Electronics (LGE) , the Korean electronics and digital giant, recently commissioned its fourth Plasma Display Panel (PDP) line, A#3 at their South Korean Display Workplace. Reflecting their confidence in the global PDP market, LGE was determined to concentrate its core capabilities on building A#3, which is capable of producing 12,000 units a month . The PDP A#3 project is built ...
-
Sohar Refinery
Project Background Orpic (Oman Oil Refineries and Petroleum Industries Company) required a thermal seawater desalination solution as part of its Sohar refinery improvement project to ensure an uninterrupted supply of fresh feed water to for its boilers. Orpic decided that a Multi Effect Distillation with Thermal Vapor Compression (MED-TVC) Seawater Desalination system was suited for its water ...
-
QUA’s FEDI Chosen for LNG Refinery
Project Background Sabine Pass, a large LNG refnery in the United States, required a membrane desalination solution to cater to its extensive process water needs in order to produce a large amount of liquefed natural gas for export. The water is used for injection for compressor turbines for methane, propane and ethylene, wash water for gas turbines and other utility make-up uses. The feed ...
-
East coast power plant realizes 95% water recovery
The Facility Bechtel Power Corporation builta power plant in Northampton, Pennsylvania for U.S. Generating Company. The power plant burns culm, a lower quality coal rejected from use in previous decades. By using culm as the fuel, U.S. Generating will clean up a solid disposal site. The power plant contains the usual systems including cooling towers and demineralizers that produce waste brines ...
-
Recovery of salts from ion-exchange regeneration streams by a coupled nanofiltration–membrane distillation process
Ion-exchange tap water demineralization for process water preparation results in a saline regeneration wastewater (20–100 mS cm−1) that is increasingly problematic in view of discharge. A coupled nanofiltration–membrane distillation (NF-MD) process is evaluated for the recovery of water and sodium chloride from this wastewater. NF-MD treatment of mixed regeneration ...
-
Magnetic Schiff's base sorbent based on shrimp peels wastes for consummate sorption of chromate
Magnetic Schiff's base chitosan composite has been prepared starting from shrimp peels as a raw material. Chitosan extraction involved three main stages as preconditioning, demineralization deproteinization and deacetylation. Chitosan modification process took place through the reaction between chitosan and polymeric Schiff's base of thiourea/glutaraldehyde in the presence of magnetite. The ...
-
Komax teflon lined mixer simplifies acid injection for power plant
A major source of waste water in many power plants is the waste stream that results from ion exchange used for demineralizing the boiler feed water. The alkaline regeneration waste stream produced by the ion exchange process requires the addition of an acid to this stream before discharge from the plant. Regulatory authorities typically require the effluent to have a near neutral pH before ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you