Method for treating waste water containing multiple mixed organophosphorus scale and corrosion inhibitors
A scale and corrosion inhibitor, organophosphorus technology, which is applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of poor removal of organic phosphorus and unstable operation. , narrow scope of application, etc., to achieve good flocculation effect, reduce operation steps, and facilitate the operation.
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Embodiment 1
[0029] Example 1: A wastewater treatment method containing multiple mixed organic phosphorus scale and corrosion inhibitors, the steps are as follows:
[0030] The result of water quality analysis before wastewater treatment is that the total phosphorus concentration is 3mg / L, and the total concentration of three organic phosphorus ATMP, HEDP, PBTCA scale and corrosion inhibitors added is 22mg / L, of which the phosphorus of the three scale and corrosion inhibitors The content ratio is 1:1:1.
[0031] Take 100mL of wastewater in a beaker, add 0.038g of solid calcium hydroxide to the wastewater at room temperature to adjust the wastewater pH to 12. After fully stirring, quickly add 1mL of currently used 100g / L ferrous sulfate solution , Stir well, and then add 2mL, 1g / L PAM to accelerate flocculation and sedimentation. After standing for 30 minutes, the precipitate in the solution was filtered, and the discharged supernatant was treated wastewater. The measured phosphorus concentrati...
Embodiment 2
[0032] Embodiment 2: A wastewater treatment method containing multiple mixed organic phosphorus scale and corrosion inhibitors, the steps are as follows:
[0033] The result of water quality analysis before wastewater treatment is that the total phosphorus concentration is 3mg / L, and the total concentration of three organic phosphorus ATMP, HEDP, PBTCA scale and corrosion inhibitors added is 18mg / L, of which the phosphorus of the three scale and corrosion inhibitors The content ratio is 3:2:1.
[0034] Take 100mL of wastewater in a beaker, add 0.04g of solid calcium hydroxide to the wastewater at room temperature to adjust the wastewater pH to 12. After fully stirring, quickly add 1mL of currently used 100g / L ferrous sulfate solution , Stir well, and then add 2mL, 1g / L PAM to accelerate flocculation and sedimentation. After standing for 30 minutes, the precipitate in the solution was filtered, and the discharged supernatant was treated wastewater. The measured phosphorus concentra...
Embodiment 3
[0035] Embodiment 3: A wastewater treatment method containing multiple mixed organic phosphorus scale and corrosion inhibitors, the steps are as follows:
[0036] The result of water quality analysis before wastewater treatment is that the total phosphorus concentration is 3mg / L, and the total concentration of three organic phosphorus ATMP, HEDP, PBTCA scale and corrosion inhibitors added is 18mg / L, of which the phosphorus of the three scale and corrosion inhibitors The content ratio is 4:1:1.
[0037] Take 100mL of wastewater in a beaker, add 0.042g of solid calcium hydroxide to the wastewater under normal temperature conditions to adjust the wastewater pH to 12. After fully stirring, quickly add 1mL of the 100g / L ferrous sulfate solution currently used , Stir well, and then add 2mL1g / L PAM to accelerate flocculation and sedimentation. After standing for 30 minutes, the precipitate in the solution was filtered, and the discharged supernatant was treated wastewater. The measured p...
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