Reclaimed water recycling treatment technology
A treatment process and technology for reclaimed water, applied in the field of water treatment, can solve the problems of fouling of security filters, fouling of reverse osmosis membranes, substandard water inflow of reverse osmosis devices, etc., and achieve the effect of preventing clogging and prolonging service life.
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Embodiment 1
[0028] This embodiment provides a treatment process for reuse of reclaimed water. The process uses circulating water and sewage as raw water, and performs ozone aeration treatment before the raw water enters the reuse water tank, oxidizes and sterilizes, and oxidizes ferrous ions in the water body. into ferric ions to remove dissolved carbon dioxide in water.
[0029] The treatment process of reclaimed water reuse in this embodiment avoids adjusting the water body to alkaline conditions in the subsequent treatment process of reclaimed water reuse to remove dissolved carbon dioxide in the water body, thereby avoiding or reducing the generation of silica colloids or gels, Thus, the condition of acidic water inflow to the reverse osmosis membrane of the reverse osmosis device used in the follow-up treatment process of reclaimed water is satisfied, the clogging of the reverse osmosis membrane is prevented, and the service life of the reverse osmosis membrane is prolonged. Replenis...
Embodiment 2
[0031] Such as figure 1 As shown, the present embodiment provides a treatment process for reclaimed water, comprising the following steps:
[0032] The circulating water sewage 6 is used as raw water, and before the raw water enters the reuse water tank 8, ozone aeration treatment is performed to oxidize and sterilize, and ferrous ions in the water body are oxidized to ferric ions. Preferably, the concentration of iron ions in the circulating water sewage 6 is 0.3-1.0 mg / L. Add ozone aeration treatment before entering the reuse water tank 8, utilize the oxidation and sterilization properties of ozone, pass ozone into the raw water for sterilization, and remove dissolved carbon dioxide in the water body. The silicon dioxide in the circulating water sewage 6 in this embodiment exceeds the standard.
[0033] The treatment process of reclaimed water reuse in this embodiment avoids adjusting the water body to alkaline conditions in the subsequent treatment process of reclaimed wa...
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