Antibiotic wastewater deep treatment device and treatment method

A technology of antibiotic wastewater and advanced treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Effect, strong degradation ability, good effect

Active Publication Date: 2012-07-18
BEIJING TANSI ENVIRONMENTAL PROTECTION TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the traditional process of H 2 o 2 If the one-time dosage is too large, it is easy to treat Fe first. 2+ Oxidized to Fe 3+ , resulting in H 2 o 2 and Fe 2+ A lot of waste of reagents, and cause a large amount of sludge

Method used

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  • Antibiotic wastewater deep treatment device and treatment method
  • Antibiotic wastewater deep treatment device and treatment method
  • Antibiotic wastewater deep treatment device and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] At room temperature, take the effluent from a pharmaceutical company treated by anaerobic and aerobic tanks, the pH of the wastewater is 6.5-7.0, the COD is about 250mg / L-350mg / L, the BOD5 is 14-16mg / L, and the BOD5 / COD is 0.05 Left and right, organic wastewater that is difficult to biodegrade.

[0038]The raw water first passes through the coagulation and sedimentation device 2, and flocculants and coagulants are added to the raw water. The coagulant PAC is formulated into a solution of 5% by weight, and the dosage is 300mg / L. 1min, the speed is 270r / min, the flocculation stage is 10min, the speed is 50r / min. After the water quality is stable, the water will flow out, and the water quality will change as follows:

[0039]

[0040] Use H in conditioning tank 4 2 SO 4 The pH value of waste water is adjusted to 3, enters Fenton reaction device 8 again, adds Fenton medicament (H 2 o 2 The concentration of the solution is 30%, the dosage is 300mg / L, the H 2 o 2 w...

Embodiment 2

[0053] At room temperature, take the effluent from a pharmaceutical company treated by anaerobic and aerobic tanks, the pH of the wastewater is 5.8-6.7, the COD is about 180mg / L-240mg / L, the BOD5 is 6-8mg / L, and the BOD5 / COD is 0.03 Left and right, organic wastewater that is difficult to biodegrade.

[0054] The raw water first passes through the coagulation and sedimentation device 2, and flocculants and coagulants are added to the raw water. The coagulant PAC is prepared into a solution of 5% by weight, and the dosage is 200mg / L. The flocculation stage is 15 minutes and the rotation speed is 30 r / min. After the water quality is stable, the water will flow out, and the water quality will change as follows:

[0055]

[0056] Use H in conditioning tank 4 2 SO 4 The pH value of waste water is adjusted to 2.5, enters Fenton reaction device 8 again, adds Fenton medicament (H 2 o 2 The concentration of the solution is 30%, the dosage is 500mg / L, the H 2 o 2 with FeSO 4...

Embodiment 3

[0060] At room temperature, take the effluent from a pharmaceutical company treated by anaerobic and aerobic tanks, the pH of the wastewater is 6.8-7.6, the COD is about 320mg / L-470mg / L, the BOD5 is 20-25mg / L, and the BOD5 / COD is 0.07 Left and right, organic wastewater that is difficult to biodegrade.

[0061] The raw water first passes through the coagulation and sedimentation device 2, and flocculants and coagulants are added to the raw water. The coagulant PAC is formulated into a solution of 5% by weight, and the dosage is 400mg / L; the model of flocculant PAM is TH201; The flocculation stage is 12 minutes and the rotation speed is 40 r / min. After the water quality is stable, the water will flow out, and the water quality will change as follows:

[0062]

[0063]

[0064] Use H in conditioning tank 4 2 SO 4 The pH value of waste water is adjusted to 3.5, enters Fenton reaction device 8 again, adds Fenton medicament (H 2 o 2 The concentration of the solution is ...

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Abstract

The invention discloses an antibiotic wastewater deep treatment device which comprises a coagulation and precipitation device, a regulating pool, a Fenton reaction device, a resin reaction pool and a resin precipitation and separation pool, wherein a flocculating agent and coagulant aid storage and feeding device is attached to the coagulation and precipitation device; and a pH regulating device and a pH monitoring device are attached to the regulating pool. The invention also discloses an antibiotic wastewater treatment method which comprises the following steps of: leading antibiotic wastewater to be treated into the coagulation and precipitation pool, and throwing a flocculating agent and a coagulating agent into the coagulation and precipitation pool; performing static precipitation, yielding water after water quality is stabilized, and leading the water into the regulating pool; regulating the pH value of the antibiotic wastewater to 2.5-3.5; leading the water out of the regulating pool into the resin reaction pool through the Fenton reaction device, and adopting 100-150 times of resin treatment amount in the resin reaction pool, wherein the hydraulic retention time is 15-20 min; and entering the resin precipitation and separation pool, and draining water. Each part of the device operates independently, and the device is simple and convenient to operate and easy to control and regulate.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular, the invention relates to a device capable of advanced treatment of antibiotic wastewater and a treatment method. Background technique [0002] At present, the pharmaceutical industry is one of the 12 industries that the national environmental protection plan should focus on. The discharge standards for antibiotic production wastewater are becoming increasingly stringent. Many companies can no longer meet the current discharge standards on the basis of the original treatment process. Subsequent transformation of some processes is carried out, and low-cost and effective technologies are sought to achieve the purpose of advanced wastewater treatment and discharge. Among various advanced treatment technologies, the classic Fenton process in advanced oxidation technology has attracted much attention because of its strong oxidation ability, non-selective oxidation of pollutants, and wide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 姚宏张士超王钰楷许建民田盛
Owner BEIJING TANSI ENVIRONMENTAL PROTECTION TECHCO
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