Coking wastewater advanced treatment composite reagent and application thereof
A technology for coking wastewater and advanced treatment, which is applied in water/sewage treatment, natural water treatment, water/sewage multi-stage treatment, etc. It can solve the problems of membrane system pollution, restricting the application of membrane separation technology, and high pollution of coking wastewater. Achieve the effect of reducing suspended solids, COD and turbidity stabilization, and improving the phenomenon of membrane fouling
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Embodiment 1
[0034] (1) Configuration of composite drugs:
[0035] Decarbon softener: mixed from powder activated carbon with the quality ratio of 1.5: 1;
[0036] Combined concrete: Aluminum chloride and polymeric sulfate is mixed according to the mass ratio of 30: 1.
[0037] (II) Application: This implementation case is the implementation of engineering directly, and the dicycle water is sequentially entered into a decarbon-carbon softener contact reaction unit, a combination of a coagulant reaction unit, a flocculation unit, a sludge precipitation unit, and a pool. Among them, the residence time of the decarbon softener contact reaction unit is 0.45 h, the residence time of the combined concrete reaction unit is 0.15 h, the residence time of the flocculation unit and the sludge precipitation unit is 0.25 h and 0.85 h, respectively.
[0038] The decarbon softener investment is 600 mg / L, the combined concrete dosage is 420 mg / L, the anionic polyacrylamide (PAM-) is 1.2 mg / L, the formed...
Embodiment 2
[0043] (1) Configuration of composite drugs:
[0044] Decarbon softener: mixed from powder activated carbon with cooked lime in accordance with 1: 1 mass ratio;
[0045] Combined concrete: Based on the mass ratio of polymerized chloride and polymer sulfate according to 6: 1.
[0046] (II) Application: This implementation case is the implementation of engineering directly, and the dicycle water is sequentially entered into a decarbon-carbon softener contact reaction unit, a combination of a coagulant reaction unit, a flocculation unit, a sludge precipitation unit, and a pool. Among them, the residence time of the decarbon softening agent in contact reaction unit is 0.4 h, the residence time of the combined concrete reaction unit is 0.15 h, the residence time of the flocculation unit and the sludge precipitate unit is 0.25 h and 0.85 h, respectively.
[0047] The decarbel softener investment is 1200 mg / L, the combined concrete dosage is 1200 mg / L, the anionic polyacrylamide (PAM-)...
Embodiment 3
[0052] (1) Configuration of composite drugs:
[0053] Decarbon softener: mixed by powder activated carbon with the quality ratio of 5: 1;
[0054] Combined concrete: Based on polymerized aluminum chloride and polymeric sulfate in accordance with the mass ratio of 50: 1.
[0055] (II) Application: This implementation case is the implementation of engineering directly, and the dicycle water is sequentially entered into a decarbon-carbon softener contact reaction unit, a combination of a coagulant reaction unit, a flocculation unit, a sludge precipitation unit, and a pool. Among them, the residence time of the decarbon softener contact reaction unit is 2 h, the residence time of the combined concrete reaction unit is 0.5 h, the residence time of the flocculation unit and the sludge precipitate unit is 0.25 h and 0.85 h, respectively.
[0056] The decarbon softener investment is 800 mg / L, the combined concrete dosage is 960 mg / L, the anionic polyacrylamide (PAM-) investment is 1.2...
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Abstract
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