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A pharmaceutical wastewater treatment device with high efficiency resource recovery and low energy consumption and its operation method

A technology for resource recovery and pharmaceutical wastewater, applied in energy wastewater treatment, natural water treatment, multi-stage water treatment, etc., can solve the problems of poor biogas quality, adding a large amount of carbon sources, poor applicability, etc., and achieve improved shock load resistance , Improve the ability of acid production, increase the effect of stability

Active Publication Date: 2019-07-26
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: in the existing pharmaceutical wastewater treatment process, the pH value of the hydrolytic acidification effluent is low, which affects the subsequent methane production, and the effect of converting particulate pollutants into dissolved organic matter is not ideal, resulting in methane production. In the stage, the gas production per unit volume is low, the quality of biogas is poor, and the granular sludge formation process is slow. The subsequent denitrification process requires a large amount of carbon source, which leads to unstable operation of the pharmaceutical wastewater treatment process and low carbon resource recovery efficiency. Due to the shortcomings of technical means such as high energy consumption, complex operation and management, and poor applicability to international projects, a pharmaceutical wastewater treatment device and its operation method with high-efficiency resource recovery and low energy consumption are provided, which can effectively improve the wastewater treatment efficiency on the basis of ensuring the improvement of wastewater treatment efficiency. The resource recovery rate of the pharmaceutical wastewater treatment process reduces the energy consumption of the treatment process, the operation and management are convenient, and the process operation is stable

Method used

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  • A pharmaceutical wastewater treatment device with high efficiency resource recovery and low energy consumption and its operation method
  • A pharmaceutical wastewater treatment device with high efficiency resource recovery and low energy consumption and its operation method
  • A pharmaceutical wastewater treatment device with high efficiency resource recovery and low energy consumption and its operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: This example uses a set of small-scale test equipment. The pharmaceutical wastewater to be treated is taken from the effluent of a fermentation pharmaceutical enterprise workshop. The wastewater is orange and has a variety of organic substances. The influent volume is 30L / d, and the influent COD is 14500-17000mg / L , pH6.2-6.9, turbidity 179-226mg / L.

[0032] The structure of the small test device is as follows: figure 1 As shown, it is a pharmaceutical wastewater treatment device with high-efficiency resource recovery and low energy consumption, mainly including air flotation tank 1, regulating tank 2, acid dosing tank 3, alkali dosing tank 4, enhanced hydrolysis acidification tank 5, micron calcium silicate Dosing tank 6, high-efficiency methane production tank 8, anoxic tank 11, aerobic tank 12, biogas collection and treatment device 13, secondary sedimentation tank 14, coagulation sedimentation tank 15, PAC dosing tank 16, control device 19 and power suppl...

Embodiment 2

[0041] Example 2: The difference from Example 1 is that the pharmaceutical wastewater to be treated is taken from the mixed effluent of a certain pharmaceutical company workshop, the wastewater is orange-red, and there are many kinds of organic matter. .7-7.2, turbidity 148-169mg / L.

[0042] The structure of the small test device is as follows:figure 1 As shown, it is a pharmaceutical wastewater treatment device with high-efficiency resource recovery and low energy consumption, mainly including air flotation tank 1, regulating tank 2, acid dosing tank 3, alkali dosing tank 4, enhanced hydrolysis acidification tank 5, micron calcium silicate Dosing tank 6, high-efficiency methane production tank 8, anoxic tank 11, aerobic tank 12, biogas collection and treatment device 13, secondary sedimentation tank 14, coagulation sedimentation tank 15, PAC dosing tank 16, control device 19 and power supply; Air flotation tank 1, regulating tank 2, enhanced hydrolysis acidification tank 5, h...

Embodiment 3

[0051] Example 3: This example adopts a pilot test device. The pharmaceutical wastewater to be treated is the fermentation wastewater of an anticancer drug. The influent COD18500-21900mg / L, pH6.4-6.7, SS764-1128mg / L, and the influent water volume is 4m3 / d .

[0052] The structure of the pilot test device is as follows: figure 1 As shown, it is a pharmaceutical wastewater treatment device with high-efficiency resource recovery and low energy consumption, mainly including air flotation tank 1, regulating tank 2, acid dosing tank 3, alkali dosing tank 4, enhanced hydrolysis acidification tank 5, micron calcium silicate Dosing tank 6, high-efficiency methane production tank 8, anoxic tank 11, aerobic tank 12, biogas collection and treatment device 13, secondary sedimentation tank 14, coagulation sedimentation tank 15, PAC dosing tank 16, control device 19 and power supply; Air flotation tank 1, regulating tank 2, enhanced hydrolysis acidification tank 5, high-efficiency methane p...

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Abstract

The invention discloses a pharmaceutical wastewater treatment device with high-efficiency resource recovery and low energy consumption and an operation method thereof. pool, coagulation sedimentation tank, acid dosing tank, alkali dosing tank, micron-scale calcium silicate dosing tank, control device and power supply; the top of the enhanced hydrolysis acidification tank is equipped with a diversion pipe, and the middle is equipped with Fixed packing, with micron-scale calcium silicate dosing tube and uniform water distributor at the bottom, combined packing in the middle of the high-efficiency methane production tank, fixed soft packing at the top, and a uniform water distributor at the bottom; For the treatment of pharmaceutical wastewater, under the premise of ensuring the improvement of COD and TN removal rate, it can improve the hydrolytic acidification function of the hydrolysis acidification tank, enhance the biogas production capacity and operation stability of the methane production tank, reduce the residence time of wastewater, and reduce the denitrification of the anoxic tank Additional carbon source required.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a pharmaceutical wastewater treatment device with high-efficiency resource recovery and low energy consumption and an operating method thereof. Background technique [0002] Pharmaceutical wastewater has complex components, various types of organic pollutants, high concentration, deep color, high content of suspended solids, high COD concentration and large fluctuations in influent COD. It is one of the more difficult industrial wastewater to treat. . The threat of pharmaceutical wastewater to the ecological environment and human health is becoming more and more serious. With the strict control of the pharmaceutical industry's sewage discharge and the special discharge standards required by different sensitive areas, local governments have also issued a series of energy-saving and emission-reduction policies. And planning, there are higher requirements for the efflu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C12M1/107C12P5/02C02F103/34
CPCC02F1/24C02F1/40C02F1/5236C02F1/66C02F3/02C02F3/28C02F3/286C02F3/34C02F9/00C02F2001/007C02F2103/343C02F2301/08C12M21/04C12M23/36C12M25/14C12M29/06C12P5/023C02F1/001C02F1/006C02F1/008C02F1/5245C02F1/68C02F3/2826C02F3/302C02F2209/06C02F2209/42Y02E50/30Y02W10/30
Inventor 胡海冬马思佳任洪强许柯
Owner NANJING UNIV
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