Water treatment method for instant synthesis of laminated bis-hydroxide
A technology of double hydroxide and hydroxide, applied in the field of water treatment, to achieve the effect of wide concentration range and simple process flow
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[0013] The water suitable for processing in this embodiment includes: containing anions, such as CrO 4 2- , SeO 4 2- , AsO 4 2- 、PO 4 3- , SO 4 2- , F - Such as industrial wastewater or drinking water, the substances suitable for purification and removal include: pollutants in wastewater existing in the form of anions or substances harmful to human body in drinking water. The specific processing steps are:
[0014] a. The water that needs to be purified first enters the dosing reaction tank, and magnesium and aluminum compounds are added to meet the chemical components required for the synthesis of LDH, and they are mixed evenly. The aluminum compound to be added is any kind of soluble aluminum salt or aluminum compound, or their mixture. Including aluminum-containing chlorides, nitrates, sulfates, metaaluminates, etc. Aluminum compounds that can be used as additives include aluminum-containing solid salts and aluminum-containing solutions. The magnesium compound ...
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