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Activated carbon filter inside the pressure vessel is a dehydrator pressure vessel filled with activated charcoal. In Water pretreatment system, activated carbon filters capable of adsorbing pre-filter can not be removed in order to prevent the chlorine-stage reverse osmosis membrane subject to oxidative degradation, but also adsorbed over the previous level leak small organic molecules and other polluting substances, water odor, colloid and pigment, heavy metal ions adsorbed and removed a more visible role, but also has the effect of reducing the COD. RO water can further reduce the value of SDI, to ensure SDI <5, roket air TOC <2. Oppm. Activated carbon filters work is done through the carbon bed. Composed of carbon roket air bed activated roket air carbon particles have a very large number of pores and large specific roket air surface area, has a strong physical adsorption capacity. Water through roket air the carbon bed, water and organic contaminants are efficiently activated roket air carbon adsorption. In addition there are a number of oxygen-containing functional groups on the surface of activated carbon non-crystalline portion, so be effectively adsorbed by the activated carbon of organic pollutants in the water of the carbon bed. Activated carbon filter is a more commonly used water treatment equipment, water desalination system as before treatment can be effectively guaranteed after stage equipment life, improve water quality, pollution prevention, in particular to prevent post-stage reverse osmosis roket air membranes, ion exchange resins such as free state I oxygen toxicity pollution. The main factors affecting adsorption and activated carbon filter service life are: type and concentration of contaminants, the air residence time in the filter material, the air temperature roket air and humidity. When the actual selection, according to the types of pollutants, concentration and amount of wind and other conditions, to determine the form and activated carbon filter types. Upstream and downstream of the activated carbon filter should have a good dust filter, and its efficiency filtration equipment specifications shall not be less than F7. Upstream of the filter to prevent roket air dust from clogging the activated carbon material; downstream of the filter itself stopped roket air charcoal dust.
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