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Iron and Manganese Removal from Bottled Water
Fluid: Well water
Temperature: Ambient
Working Pressure: 40 – 60 psi
Line size: 1"
A client who bottles water, soft drinks and juices for multinational supermarkets as well as their own brands had sunk a new well to produce bottled water.
Problem:
The water contained Iron and Manganese and particulate matter in excess of the
maximum admissible concentration under EU regulations. Under 1998 EU regulations
the maximum admissible concentration of Iron is 200 ug/l, Manganese 50 ug/l and
Turbidity not in excess of 4 NTU's. (Turbidity is an optical property; the scattering
and absorption of light of solids suspended in water. In other words, water is turbid if
you can't see through it. An instrument called a nephelometer measures turbidity
directly by comparing the amount of light transmitted straight through a water sample
with the amount scatted at an angle of 90o to one side; the ratio determines the
turbidity in NTU's.)
Solution:
To remove particulate we supplied a 1 ½" model SS6L-1524 bag filter with reusable
polypropylene bags as a prefilter followed by a 3 round 20" cartridge housing with 10
micron absolute rated hybrid pleated / depth filter.
The R-P 152 Series bag filter meets higher pressure and flow demands with a small housing that is very competitive with cartridge filters. A 152 Series bag filters is an in-line pressure vessel. It consists of a cylindrical housing and a filter medium supported by a stainless steel, perforated baskets. The filter protects both process and product by removing contaminants from liquids. Unfiltered liquids enter the inlet at the top. As it flows down through the media and support basket, solids are deposited on the inside surface of the media. The filtered liquids then exits through the outlet at the bottom. Bag filters remove trace contaminants from almost any liquid. For example, they filter sand, rust and pipe scale from plant or process waters; metal shavings and wear particles from recycled cutting, quenching, flushing and hydraulic oils and coolants; and contaminants that can plug nozzles in spray systems. They also remove plastic or rubber particles from cooling waters; undispersed solids, scales and skin from inks, paints and other coatings; and contaminants from vegetable oils and liquid sugars.
We also supplied a small Iron / Manganese filter using Crystal-RightTM silica.
Crystal-Right crystals are a natural choice for water conditioning systems. The "zeolite" crystals come from a sodium aluminosilicate carefully produced and processed using an exclusive technology. The silica crystals remove iron, manganese and hardness in a single pass and raises pH levels in acidic water. (E & OE)
