Pre-treatment equipment is a common and essential component of water purification systems. Its primary objective is to remove suspended solids, heavy metals (such as iron and manganese), colloidal substances, and organic matter from the water, while simultaneously reducing biological contaminants. Furthermore, it aims to eliminate or reduce hardness-causing ions-such as calcium and magnesium-as well as bicarbonate concentrations. This process serves to alleviate the operational burden on downstream desalination equipment and ensures that the quality of the treated water meets specified standards.
Coagulation and Sedimentation Treatment: This process involves the addition of polymeric substances (flocculants) to the source water. These agents cause the fine, loose floc particles suspended in the water to aggregate into larger, denser clusters, thereby facilitating their rapid and efficient sedimentation.
Multi-Media Filter: The interior of this filter is packed with refined filtration media of varying types and particle sizes, arranged in a specific sequence from top to bottom (typically ranging from finer to coarser grains). This configuration effectively removes suspended solids, silt, clay, humus, and other impurities from the water, ensuring that the turbidity of the treated water reaches optimal levels.
Activated Carbon Adsorption Filter: The activated carbon adsorption filter is a key component in water pre-treatment systems. It utilizes the principle of chemical adsorption to remove a wide range of substances with diverse properties-including odors, organic compounds, colloids, and residual chlorine-from the water.
Iron and Manganese Removal Filter: This equipment incorporates mature domestic technologies for iron and manganese removal. It employs innovative processes such as jet-induced aeration utilizing the residual pressure from well pumps, in-line static mixing for dissolved oxygen enrichment, and contact oxidation filtration within a fluidized-bed degasification filter. By integrating the traditional external oxidation unit directly into the main body of the equipment, the system achieves a rational and compact layout that delivers significant energy-saving benefits. It is an ideal solution for removing iron and manganese from domestic water supplies in both urban and rural areas, as well as for various industrial water applications.
Water Softening Unit: The total concentration of calcium and magnesium ions present in water is collectively referred to as "water hardness." In both daily life and industrial operations, these ions frequently lead to the formation of insoluble precipitates (known as scale), causing numerous inconveniences in living and production environments. The water softening unit effectively removes calcium and magnesium ions from the water, ensuring that the hardness of the treated water is reduced to ≤ 0.02 mmol/L.
Precision Filter: The body of this filter is constructed from stainless steel, while the filter element is manufactured using melt-blown polypropylene (PP) fibers featuring a tapered pore structure. This design offers several advantages, including high dirt-holding capacity, a long service life, and ease of replacement. The filtration precision ranges from 0.1 μm to 50 μm.
