Initial rainwater treatment process based on super-magnetic coagulating sedimentation technology
A technology of initial rainwater and treatment process, applied in flocculation/sedimentation water/sewage treatment, runoff/rainwater treatment, multi-stage water treatment, etc., can solve problems such as enrichment and plant growth threats
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Embodiment 1
[0020] The initial rainwater treatment process adopts the super magnetic coagulation sedimentation technology. The sewage passes through the grid to remove the particulate matter in the river and reduce the load of the magnetic loading system; then the wastewater is lifted to the magnetic loading system through the lift pump, and the flocculant is first added to the wastewater. The suspended solids are destabilized into small flocs, and then modified magnetic seeds are added to increase the density of the flocs. At the same time, coagulants are added to increase the volume of the flocs and improve their sedimentation performance. When the sedimentation performance is improved , and finally the wastewater passes through the magnetic loading system, and the effluent reaches the standard and returns to the river; the sedimentation sludge is separated from the modified magnetic seeds through the cyclone recovery system, and the modified magnetic seeds are recycled, and the sludge en...
Embodiment 2
[0027] Adopt embodiment to use domestic sewage, adopt the primary rainwater treatment process of supermagnetic coagulation sedimentation technology to carry out domestic sewage treatment, specifically:
[0028] The coagulant used is 45 parts of acid-soluble fly ash, 25 parts of high-iron bauxite, 28 parts of diatomite, 15 parts of aluminum sulfate, and 18 parts of ferric chloride. Grind the raw materials into fine particles, and roast at 800°C for 5 hours; mix the mixed material calcined at high temperature with 2mol / L industrial hydrochloric acid (the ratio of the mixed material to industrial hydrochloric acid is 1g:7mL), and condense and reflux after mixing 1.5h, after cooling, add it to the sewage treatment process according to the dosage of 0.5mg / L.
[0029] The modified magnetic species used is obtained by organically modifying the surface of common magnetic species with polyvinyl alcohol. First, the common magnetic species Fe 3 o 4 Add it to 70% acetone aqueous solutio...
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