Membrane chemical reactor, water treatment system and water treatment method using the same
A membrane chemical reactor and reactor technology, applied in the field of water treatment, can solve the problem of high energy consumption
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Embodiment 1
[0050] In a coal chemical liquid zero discharge project, the reverse osmosis concentrated water of the reuse device has a conductivity of 10,000-20,000 μs / cm. The indicators and treatment results of various pollutants in the wastewater are shown in Table 1.
[0051] The waste water is treated as follows:
[0052] 1) First add lime (concentration 5%), sodium hydroxide (concentration 40%) and magnesium (concentration 5%) to the wastewater, then add sodium carbonate (concentration 10%) to the wastewater, and according to the situation Add sodium hydroxide (pH interlocking), react in the primary reaction tank 20 for 30min;
[0053] 2) After the dosing reaction, the wastewater is pumped into the membrane chemical reactor 10, further reacted in the deep reaction zone 113, and filtered through the filter membrane 122 to remove a large amount of suspended particles (mainly calcium, Precipitation and complexes of magnesium and silicon), the residue is discharged from the reactor with ...
Embodiment 2
[0057] A zero-discharge project of adipic acid wastewater in a coal chemical industry has a conductance of 10,000-25,000 μs / cm. The indicators and treatment results of various pollutants in the wastewater are shown in Table 2.
[0058] The waste water is treated as follows:
[0059] 1) First add sodium hydroxide (concentration 40%) to the wastewater, then add sodium carbonate (concentration 10%) to the wastewater, and add sodium hydroxide (pH interlocking) according to the situation, in the primary reaction tank 20 Medium reaction 30min;
[0060]2) After the dosing reaction, the wastewater is pumped into the membrane chemical reactor 10, further reacted in the deep reaction zone 113, and filtered through the filter membrane 122 to remove a large amount of suspended particles (mainly calcium , magnesium, silicon precipitation and complex), the residue is discharged from the reactor with a solid content of 5% to 10% during the slag discharge process.
[0061] Table 2:
[0062...
Embodiment 3
[0064] A certain catalyst wastewater contains 100-30000mg / L of ultrafine coal powder, which is difficult to remove by ordinary mixed sedimentation. Ordinary ultrafiltration is used, and the fouling of ordinary ultrafiltration is serious, which has a great impact on the quality of the final product.
[0065] The waste water is treated as follows:
[0066] 1) First add PAC to the wastewater, the dosage is 3mg / L, and use the water inlet pipe to add;
[0067] 2) Then the waste water enters the membrane chemical reactor 10 for further treatment, the turbidity of the product water is less than 0.5, and the dope is discharged with a solid content of 10-20%.
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