demineralized water Articles
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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 ...
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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 ...
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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 ...
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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
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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 ...
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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 ...
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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 ...
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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 ...
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Recochem Inc., Quebec Case Study
Problem Recochem Inc., an international company based in Montreal, manufactures, packages, and distributes a vast range of chemicals for retail chain stores and the commercial market. Because of the continuing growth of the Company's sales, the Montreal plant decided to acquire a more effective water treatment system, in order to increase production of the demineralized water required for the ...
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Taming Taste & Odor (T&O) Problems - Case Study
Some taste and odors are caused by mineral constituents in the water, e.g. excess chlorine and hydrogen sulfide. However the majority of taste and odor are the result of biologic activity. Spring turnover of lakes and algal blooms are responsible for Blue-green algae (Cyanobacterium), Green algae and diatoms that introduce filter clogging organisms that also foul anion exchange resins, degrade ...
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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 ...
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Bacteria in paint shops, a very common problem
Successful bacteria control with UV light in pre-treatment systems for painting at E. Krieg GmbH in Stuttgart. In almost all cases, parts to be painted must be clean and free of grease. To achieve this, the components are washed in pre-treatment systems. After washing at 50 - 60 ° C, the parts are usually rinsed with demineralized water and these baths are particularly susceptible to the ...
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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
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Experimental study on colour removal from textile wastewaters using the H2O2/UV process with low- and medium-pressure lamps
In this paper we present the results of an experimental study aimed at estimating the efficiency and comparing the operating costs of a low pressure lamp and a medium pressure lamp in the H2O2/UV process for colour removal. Trials have been carried out on the secondary effluent of a wastewater treatment plant which treats part of the effluents of one of the largest textile industries district in ...
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California’s city of roseville chooses HERO ZLD
The Facility The Roseville Energy Park (REP) will be a natural gas-fired, combined-cycle electrical generating facility. The project, planned for a 12-acre site, will be owned by the city and will use state-of-the-art equipment to locally generate about 60 percent of Roseville’s electricity needs. The Roseville Energy Park will use recycled wastewater from the nearby Pleasant Grove ...
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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 ...
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One of the largest ipp power plants in the middle east uses membrane desalination for boiler feed water
The Facility Sidi Krir Unit 3 & 4 Power Plant, developed by InterGen and Edison SpA, is located about 30 kilometers west of Alexandria, Egypt. It is a natural gas fired power plant and at 685 MW generating capacity, is the largest IPP thermal power plant in the Middle East. The plant consists of two power blocks, which share a common membrane based Seawater Desalination system for their ...
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Madagascar nickel project water treatment supplied by aquatech
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 life-long 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 ...
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Flue Gas Desulfurization Treatment - Finland, Flow 42 m3/hour - Case Study
Project Description: Lenntech has engineered, installed and commissioned a double pass RO system, first pass is a high recovery CCRO system (93%) followed by a conventional RO system (95%) for a boiler feed water application in Finland. The treated water is used as make-up water for the boiler line, demineralizing the water of scaling potential. The complete system is equipped with top brand ...
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Membrane filtration and sonication for industrial wastewater reuse
This paper presents an experimental study aimed at estimating the efficiency of the innovative process of ultrafiltration (UF) combined with sonication (Son.) for the refinement of treated effluent to be reused in wet textile processes. Such a novel approach, which has not yet been employed on a full industrial scale, has been experienced at pilot scale on the secondary effluent of the ...
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