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HYDROLATERS FROM LAYNE CHRISTENSEN
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Hydrolater is a self–contained aeration/filtration plant, combining all the functions of aeration,
detention, chemical feed and filtration in a compact, packaged unit to remove low concentrations
of iron, manganese and other suspended solids from groundwater or groundwater under the influence
of surface water. The system also treats low levels of entrained gases and volatile organic
compounds (VOCs) that may be present. Treatment often includes pH adjustment and chlorination.
The unit's operation can be fully automated or manual.
Layne hydrolaters consist of an induced draft aerator on top of a multi–cell gravity filtration
unit. Raw water is pumped to the top of the aerator and falls down through expanded metal trays,
breaking up the water to provide optimum surface area. Air is introduced to the tower flowing
counter–current to the water to oxidize inorganic compounds and volatilize dissolved gases. Any
chemical treatment is introduced to the aerated water as it leaves the aeration section.
A detention section provides time for chemical contact, flocculation and settling. Final polishing
takes place in multiple gravity filters containing specially selected filtration media. The filters
operate under a low positive head at nominal rates. Filtered water flows into a sump at the bottom
of the unit which is common to all filter cells, then onward to storage or service.
Layne's Hydrolaters are pre–engineered, self–contained, multiple–process treatment units designed
to treat a wide variety of water quality concerns including:
Iron
Manganese
Volatile Organic Compounds (VOCs)
Turbidity
Suspended Solids
Carbon Dioxide
Hydrogen Sulfide
pH Adjustment
Hydrolaters are designed for long life and maximum flexibility. These units combine several water
treatment unit–processes into one piece of equipment. This results in a smaller footprint and fewer
individual pieces of water treatment equipment.
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