A zero-discharge treatment method and special treatment system for refractory reverse osmosis concentrated water
A reverse osmosis concentrated water and treatment system technology, which is applied in the field of zero-discharge treatment methods and special treatment systems for refractory reverse osmosis concentrated water, can solve the problems of cumbersome and complicated treatment steps, inability to achieve zero-discharge treatment, and high cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0039] Such as figure 1 As shown, the patented zero discharge treatment system for refractory reverse osmosis concentrated water provided by the present invention includes an activated carbon adsorption unit, an ultrafiltration-reverse osmosis unit and an electrochemical treatment module.
[0040] Wherein the activated carbon adsorption unit comprises a primary activated carbon filter bed 1 and a secondary activated carbon filter bed 2; the secondary activated carbon filter bed 2 is arranged downstream of the primary activated carbon filter bed 1; the primary activated carbon filter bed 1 and the secondary activated carbon filter bed 2 are both It is set as a funnel-shaped cylinder at the bottom, with a water inlet at the lower end and a water outlet at the upper end of the cylinder, and a powdered activated carbon adsorption layer 3, a primary activated carbon filter bed 1 and a secondary activated carbon filter bed are provided inside the cylinder 2 are countercurrent adsorp...
Embodiment 2
[0052] The refractory reverse osmosis concentrated water is processed through the special treatment system prepared in Example 1, and its specific treatment steps are as follows:
[0053] (1) Adsorption treatment: Start the first water inlet pump, pump the refractory reverse osmosis concentrated water into the primary activated carbon filter bed 1 for adsorption, and the filtered water after the adsorption treatment of the primary activated carbon filter bed 1 flows out from the water outlet and Store in the first water storage tank 8; start the second water inlet pump 9, pump the filtered water in the first water storage tank 8 into the secondary activated carbon filter bed 2, and the filtered water after the adsorption treatment of the secondary activated carbon filter bed 2 from The water outlet flows out and is stored in the second water storage tank 12; the mass ratio of the refractory reverse osmosis concentrated water and powdered activated carbon consumption is 1800-200...
Embodiment 3
[0060] The professional treatment system prepared in Example 1 and the treatment method in Example 2 are used to treat the refractory reverse osmosis concentrated water filtered by double-membrane technology (i.e. ultrafiltration-reverse osmosis) in petrochemical enterprises. The initial COD is 132.0mg / L , pH value is 8.0, the changes of the refractory reverse osmosis concentrated water after each step of treatment and the final treatment results are shown in Table 1 and image 3 shown.
[0061] Table 1 Treatment process and treatment results of refractory reverse osmosis concentrated water with initial concentration of 132.0 mg / L and pH value of 8.0
[0062]
[0063] In Table 1, the effluent COD refers to the chemical oxygen demand in the treated wastewater, and the effluent DOC refers to the dissolved organic carbon in the treated wastewater.
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More