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By Larry Price

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6 Commercial Brackish Water Reverse Osmosis Units for Hemodialysis application

INTRODUCTION

In January 2009, Pure Aqua supplied to a major water treatment company in Croatia 6 Commercial Brackish Water Reverse Osmosis (BWRO) Units to produce 7500gpd at max. feed TDS 1000 PPM.

SYSTEMS & PROCESS

Due to the increased exposure of dialysis patients to water used in the manufacture of dialysis fluid, which originates as drinking water, requires additional treatment to ensure that it meets a more stringent contaminant level content than drinking water. The more stringent levels are embodied in national and international standards that have evolved out of the desire to minimize the complications arising from the use of inappropriate water quality.

For water used in the preparation of dialysis fluid, chemical contaminant levels are set lower for three groups of chemical contaminants: contaminants to which exposure is associated with clinical sequel such as aluminum and fluoride, compounds present in the dialysis fluid (e.g. sodium), and trace metals.

The dialytic process utilizes high volumes of water in the preparation of the dialysis fluid. Improvements in water treatment equipment have resulted in improvements in chemical quality. Awareness that endotoxin and bacterial fragments present in the water distribution loop within the dialysis, are able to cross the dialyser membrane, has resulted in an increased focus on this aspect of water quality. Practically, the age of many water treatment plants, extensions of distribution systems and suboptimal cleaning procedures have prevented the achievement of optimal microbiological quality on a routine basis. When achieved and maintained, clear benefits to the patient have been demonstrated.

The BWRO Unit was selected from our RO-200 Series, model number RO-7500. It includes (5) 4"x40" membrane elements from (Filmtec LP-4040), (5) FRP pressure vessels, SS pump, 5 micron prefilter, pressure regulating valve, low pressure switch, pressure gauges, advanced microprocessor control panel, multi media filter, carbon filter, water softener and post UV and 0.2 micron filter to remove dead bacteria (pyrogen).

Visit Water Purification Systems for More Details.

By Larry Price

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Reverse Osmosis, Water Filters and Water Purification Systems

Reverse osmosis separation technology is used to remove dissolved impurities from water through the use of a semi-permeable membrane. RO technology involves the reversal of flow through a membrane from a high salinity, or concentrated solution to the high purity, or "permeate", stream on the opposite side of the membrane. Pressure is used as the driving force for the separation. The applied pressure (P) must be in excess of the osmotic pressure of the dissolved contaminants to allow flow across the membrane.

Reverse osmosis (RO), also known as hyper filtration, is used by our Commercial & Industrial Brackish Water & Seawater Reverse Osmosis Systems to purify water by removing salts and other impurities. It is also capable of rejecting bacteria, sugars, proteins, particles, dyes, and other constituents that have a molecular weight of greater than 150-250 daltons.

Pure Aqua, Inc. manufactures a full line of seawater desalination systems designed for heavy or continuous duty service in the marine applications where quality and dependable performance are keys. Our standard Brackish Water Reverse Osmosis systems are available with capacities ranging from 250 GPD to 500,000 GPD, and our standard Seawater Reverse Osmosis systems or water makers or RO desalination systems are available with capacities ranging from 380 GPD to 180,000 GPD. Pure Aqua is also capable of manufacturing custom built Reverse Osmosis plants.


Municipalities and industrial facilities are able to use RO permeate as a consistently pure drinking water supply and to transform drinking water to high purity water for industrial use at microelectronics, food and beverage, power, marine and pharmaceutical facilities.


Unique source for your water purification needs:

Reverse Osmosis systems from Pure Aqua deliver high performance at the lowest life-cycle costs. Our pre-engineered systems are built with high-quality components designed specifically for water purification. They arrive at your facility ready to run with all filters, membranes, pumps, piping, controls and operating manuals.

We supply membrane elements, valves, filters, pumps, nanofiltration and ultrafiltration equipment and other components. Pure Aqua is also unique in design and operation of these units. We build the complete machine, but Pure Aqua, Inc. stock all major RO systems components, such as membrane elements, controls, filters and high pressure pumps.

With expertise of Pure Aqua, you will receive economical solution that creates value for you while reducing your operating costs for reverse osmosis systems.