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

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...

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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

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