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Deep oxidation treatment method of steroid hormone drug wastewater

A steroid hormone and deep oxidation technology, which is applied in the direction of oxidized water/sewage treatment, water/sewage treatment, natural water treatment, etc., can solve the problems of difficult large-scale use, high cost, and difficult recovery of TiO2, and achieves simple methods and low cost. The effect of low and large practical value

Active Publication Date: 2015-03-25
JIANGNAN UNIV
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  • Summary
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AI Technical Summary

Problems solved by technology

But doped TiO 2 It is not easy to recycle in actual use, its cost is high, and it is difficult to use on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Preparation of the catalyst: under ice-bath conditions, the TiCl 4 Add to ice water dropwise, and then add FeCl with a molar ratio of 1% to the titanium source 3 ·6H 2 O, heated to reflux for 4 hours, aged for 2 hours, then centrifuged the obtained light yellow substance, dried at 80°C after washing, and then roasted at 450°C for 3 hours to obtain Fe-doped TiO 2 . 0.3g Fe doped TiO 2 Mix with 6g Φ2 activated carbon in 100mL water and stir for 1h, filter and absorb Fe doped TiO 2 The activated carbon was dried at 80°C.

[0013] (2) Catalytic degradation: Take 4g of the above-mentioned activated carbon and add it to a 1000mL flask, take a 400mL biochemical effluent sample with a COD of 2 and a pH value of 360mg / L and add it to a 1000mL flask, and quantitatively add chlorine dioxide and sodium hypochlorite. 0.02mol in a 1000mL flask, the total amount of oxidant added was 0.06mol / L, and stirred for 60 minutes. After the reaction was completed, the activated carbon ...

Embodiment 2

[0015] (1) Preparation of the catalyst: under ice-bath conditions, the TiCl 4 Added dropwise to ice water, and then added FeCl with a molar ratio of 2% to the titanium source 3 ·6H 2 O, heated to reflux for 4h, aged for 2h, then centrifuged the obtained light yellow substance, washed and dried at 80°C, and then roasted at 550°C for 2h to obtain Fe-doped TiO 2 . 0.3g Fe doped TiO 2 Mix with 12g Φ2 activated carbon in 100mL water and stir for 1h, filter and absorb Fe doped TiO 2 The activated carbon was dried at 80°C.

[0016] (2) Catalytic degradation: Take 10g of the above-mentioned activated carbon and add it to a 1000mL flask, take a 400mL biochemical effluent sample with a pH value of 2 and a COD of 360mg / L and add it to a 1000mL flask, add 0.03mmol of chlorine dioxide and pass Put ozone in a 1000mL flask, add a total of 0.06mol / L of oxidant (ozone is calculated by the amount of active oxygen), stir for 40min, filter out the activated carbon after the reaction, take a ...

Embodiment 3

[0018] (1) Preparation of the catalyst: under ice-bath conditions, the TiCl 4 Add dropwise to ice water, and then add FeCl with a molar ratio of 3% to the titanium source 3 ·6H 2 O, heated to reflux for 4 hours, aged for 2 hours, then centrifuged the obtained light yellow substance, dried at 80°C after washing, and then roasted at 350°C for 3 hours to obtain Fe-doped TiO 2 . 0.3g Fe doped TiO 2 Mix with 30g Φ2 activated carbon in 100mL water and stir for 3h, filter and absorb Fe-doped TiO 2 The activated carbon was dried at 80°C.

[0019] (2) Catalytic degradation: Take 20 g of the above-mentioned activated carbon and add it to a 1000 mL flask, take a 400 mL biochemical effluent sample with a pH value of 2 and a COD of 360 mg / L and add it to a 1000 mL flask, quantitatively add chlorine dioxide and peroxide Put 0.02 mol of hydrogen in a 1000 mL flask, add 0.06 mol / L of oxidant in total, stir for 50 min, filter out activated carbon after the reaction, take water samples to ...

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Abstract

The invention relates to a deep oxidation treatment method of steroid hormone drug wastewater, and belongs to the technical field of wastewater treatment. According to the deep oxidation treatment method, a current catalyst is used for the deep treatment process of the steroid hormone drug wastewater and carries out the degradation treatment on the steroid hormone drug wastewater by being matched with a multiple-oxidizing agent combining technology. Compared with a general deep oxidation treatment method, the deep oxidation treatment method of the steroid hormone drug wastewater, which is disclosed by the invention, can be used for enhancing the COD removal ratio by more than 50% and solving the problem that effluent water is difficult to degrade after the steroid hormone drug wastewater is subjected to biochemical treatment, thereby having the advantages of simplicity, low cost, good degradation effect and higher practical value.

Description

technical field [0001] The invention relates to a deep oxidation treatment method for steroid hormone drug wastewater, belonging to the technical field of wastewater treatment. Background technique [0002] After the pretreatment stage and the biochemical treatment stage of the steroid hormone drug wastewater, the chemical oxygen demand (COD) removal rate of the wastewater can reach a high level, but the effluent COD is still difficult to meet the discharge standard. In view of the fact that steroid hormone wastewater will show a strong endocrine disrupting effect under extremely low concentration conditions, the potential harm of this type of wastewater to the ecological environment and human health cannot be ignored. Therefore, it is very important to study the deep oxidation treatment of steroid hormone wastewater whose COD has not reached the standard after pre-treatment, so as to destroy the structure of residual steroid hormone drugs and eliminate the harm of wastewate...

Claims

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Application Information

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IPC IPC(8): C02F1/72B01J23/745
CPCB01J23/745C02F1/722C02F1/725C02F1/766C02F1/78C02F2101/30C02F2103/026C02F2103/343
Inventor 刘湘夏晓峰朱洁莲
Owner JIANGNAN UNIV
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