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Mechanical filter filling order, why is the most detailed above? Remove impurities such as mud sand, suspended matter, colloid and algae from the water,Reduce mechanical damage and pollution to reverse osmosis membrane elements.A multi-media filter uses one or more filter media,At a certain pressure, water with high turbidity is passed through granular or non-granular materials of a certain thickness,So that the process of effectively removing suspended impurities to clarify water,The commonly used filter material has quartz sand,Anthracite,Manganese sand, etc,It is mainly used for removing turbidity from water treatment,Softened Water,Pre-treatment of pure water, etc,The turbidity of the effluent can reach less than 3 degrees.Multi-media filter (filter bed ),Both two or more media are used as the media filter of the filter layer,In the industrial circulating water treatment system,It is used to remove impurities and absorb oil from sewage,Make the water quality meet the requirements of recycling.T

What are the construction test data of ventilation and air conditioning projects? Water supply system equipment, hot water system equipment, mechanical drainage system equipment, fire protection system equipment, heating system equipment, water treatment system equipment,And all kinds of water pumps, fans, chillers, cooling towers, air conditioning units, fresh air units and other equipment for ventilation and air conditioning systems after installation,Stand-alone trial operation should be carried out,And make records.The heating system, water treatment system, ventilation system, refrigeration system, purification air conditioning system, etc. should be tested and debugged,And make records.Non-pressure pipe systems and equipment,Including open water tanks, sanitary ware, rainwater pipes installed indoors, etc,After the system and equipment are installed,As well as the indoor and outdoor drainage pipes that are concealed, buried and have insulation layers,Irrigation (full) wate