Some raw feed waters contain suspended particulate material. This material is commonly sand, iron oxides, clay or elemental sulfur. Introduction of such materials into the membrane system can cause the development of excessive system differential pressure (dP), or even complete blockage of the brine channels with the resultant reduction of permeate flow. It can also cause physical damage to the membranes themselves. This usually results in a decrease of permeate quality and reduction of membrane life. Cartridge filtration is normally a simple and cost-effective way to reduce the amount of particulate matter reaching the membrane surface.
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Topics:
membrane filtration,
membrane treatment system,
membrane treatment,
water treatment,
membrane plants,
water quality,
ro calculations
Membranes are loaded from the feed end of the pressure vessel. To better understand the installation procedure, the following definitions are helpful:
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Topics:
membrane treatment system,
membrane treatment,
water treatment,
water quality
Since Harn R/O has been in the membrane treatment business for more than forty years now, we have seen our number one question from engineers and potential owners transition from “will membranes work on my water source?” to “how much will the membrane treatment plant cost?”.
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Topics:
membrane treatment,
membrane plants,
water treatment plant
An important part of operating membrane systems is accurate data collection on a daily basis. The data will help predict normal maintenance schedules and will help determine the cause of any system upsets. Comprehensive data is very useful in determining when the membranes need to be chemically cleaned, or eventually replaced. It also alerts the operator to changes taking place such as fouling, leaking “O” rings etc.
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Topics:
membrane treatment system,
membrane treatment,
water treatment,
water quality,
silt density index
There exists a potential for calcium, barium, strontium, fluoride and silica compounds to precipitate in the concentrate or brine channels of the reverse osmosis membranes. Precipitation occurs when the solubility limits of these various salts and silica is exceeded.
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Topics:
membrane treatment system,
membrane treatment,
water treatment,
scale inhibitor
Membranes are loaded from the feed end of the pressure vessel. To better understand the installation procedure, the following definitions are helpful:
Read More
Topics:
membrane treatment system,
membrane treatment,
water treatment,
water quality
