Efficient phosphorus removal method for domestic sewage
A domestic sewage and high-efficiency technology, applied in water/sewage treatment, chemical instruments and methods, flotation water/sewage treatment, etc., can solve problems such as easy to flow away with water, loss of raw materials, inconvenient recovery of adsorbents, etc., to achieve removal Good phosphorus adsorption performance, low cost, and the effect of increasing biochemical performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0036] Preparation of modified ceramsite
[0037] Pretreatment: Dry the dredged bottom mud to a moisture content of 30-35%, remove impurities, then dry at 105°C for 4 hours, then pulverize, pass through a 100-mesh sieve to obtain bottom mud powder, and set aside; Dehydrate the suspended matter, leave it standing for 24 hours, dry at 105°C for 2 hours, pass through a 100-mesh sieve after crushing, and obtain a dry powder of the suspended matter; dry the auxiliary materials and pore-forming agent at 80°C for 2-3 hours, pass through 100 Mesh sieve, spare;
[0038] Activation: Weigh magnesium chloride and deionized water to prepare a 2mol / L magnesium chloride solution, weigh 100g of bottom mud powder and soak in 30ml of magnesium chloride solution, filter after soaking for 24 hours, dry at 105°C for 12 hours, pulverize, and pass through a 100-mesh sieve , to obtain activated sediment powder.
[0039] Molding: Weigh 80g of activated sediment powder, add 10g of suspended matter dry ...
Embodiment 1
[0048] Pretreatment: after the solid-liquid separation of the domestic sewage through the grid channel and the grit chamber, it flows into the adjustment tank, and the water quality is adjusted and mixed in the adjustment tank;
[0049] Air flotation, hydrolysis and acidification: Transfer the adjusted sewage into the air flotation tank equipped with an air flotation machine, and put PAM into the air flotation tank according to the addition amount of 600mg / L, remove the suspended matter by air flotation, and transfer the effluent to the acidification tank. After staying for 4 hours, under the action of anaerobic bacteria and facultative anaerobic bacteria, the organic matter with large molecular weight and difficult to handle is decomposed into small molecular inorganic matter, and part of the organic matter is removed at the same time;
[0050] Biological treatment: Transfer the effluent from the acidification tank to the anoxic tank, control the dissolved oxygen in the anoxic...
Embodiment 2
[0054] Pretreatment: after the solid-liquid separation of the domestic sewage through the grid channel and the grit chamber, it flows into the adjustment tank, and the water quality is adjusted and mixed in the adjustment tank;
[0055] Air flotation, hydrolysis and acidification: Transfer the adjusted sewage into the air flotation tank equipped with an air flotation machine, and put PAM into the air flotation tank according to the addition amount of 400mg / L, remove the suspended matter through air flotation, and transfer the effluent to the acidification tank. After staying for 4 hours, under the action of anaerobic bacteria and facultative anaerobic bacteria, the organic matter with large molecular weight and difficult to handle is decomposed into small molecular inorganic matter, and part of the organic matter is removed at the same time;
[0056] Biological treatment: Transfer the effluent from the acidification tank to the anoxic tank, control the dissolved oxygen in the a...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More