Treatment process of medical intermediate production wastewater

A technology for the production of waste water and treatment process, which is applied in biological water/sewage treatment, neutralized water/sewage treatment, water/sewage treatment, etc. It can solve the problems of high civil engineering cost of direct biochemical treatment, low efficiency of direct biochemical treatment, environment and Adverse effects of human survival and other issues, to achieve the effect of improving the effect of wastewater treatment, improving the effect of solid-liquid separation, and saving civil engineering costs

Inactive Publication Date: 2022-03-04
浙江环之美环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Along with the production of pharmaceutical intermediates, various kinds of wastewater will be produced. Compared with ordinary wastewater, the production wastewater of pharmaceutical intermediates has complex components, high COD concentration, high salinity, etc., and is biologically toxic. deal with
If discharged without treatment, it will have adverse effects on the environment and human survival
Direct biochemical treatment has high civil construction costs and high operating costs; pharmaceutical intermediate production wastewater is biologically toxic, and the treatment efficiency of direct biochemical treatment is low

Method used

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  • Treatment process of medical intermediate production wastewater

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Experimental program
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Effect test

Embodiment 1

[0022] A Pharmaceutical Co., Ltd. in Zhejiang mainly produces pharmaceutical intermediates and has multiple product production lines. The main products are enalapril, lisinopril, sitagliptin intermediates and rivaroxaban intermediates. Wastewater 50t / d; Water flushing pump wastewater, ground and equipment cleaning wastewater, maintenance wastewater, waste gas spray wastewater, cooling wastewater, domestic sewage, initial rainwater, and pure water preparation wastewater are used as low-concentration wastewater, totaling 300 tons. The concentrations of COD, BOD5, ammonia nitrogen and toluene in high concentration wastewater are 63500mg / L, 25600mg / L, 153mg / L and 24.7mg / L; the concentrations of COD, BOD5, ammonia nitrogen and toluene in low concentration wastewater are 2330mg / L, 1100mg / L L, 28mg / L and 4.2mg / L.

[0023] Please refer to the refractory 100t high-concentration wastewater produced by the processes in each workshop, which is collected into the high-concentration adjustm...

Embodiment 2

[0026] The refractory 100t high-concentration wastewater produced by the process in each workshop is collected into the high-concentration adjustment tank. The wastewater in the high-concentration adjustment tank is pumped to the oxidation tank, and acid is added to adjust and use Fenton oxidation to remove part of the organic matter. The amount of Fenton added to the wastewater is 0.3% of the weight, and improve the B / C value of wastewater by destroying complex organic matter, and the effluent from the oxidation tank flows into the first coagulation sedimentation tank; The flocculant is aluminum sulfate; the coagulant is activated silicic acid, and the addition of the flocculant and the coagulant is 0.05% and 0.01% of the waste water quality; a large amount of alum flowers are produced, and some organic matter is removed by adsorption to remove SS and Insoluble organic matter, the supernatant flows into the comprehensive wastewater regulating tank and mixes with low-concentrat...

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Abstract

The invention is applicable to the field of sewage treatment in environmental engineering, and provides a treatment process of medical intermediate production wastewater, which comprises the following operation steps: carrying out split-flow treatment on wastewater to divide the wastewater into high-concentration wastewater and low-concentration wastewater, treating the high-concentration wastewater by Fenton, treating the tail-end wastewater by an MBR membrane tank, and treating the tail-end wastewater by an MBR membrane tank. The solid-liquid separation effect can be improved; according to the invention, quality-based flow division is carried out at the wastewater source, so that the construction cost and the operation cost can be saved through wastewater flow division, and the wastewater treatment effect can be improved; the high-concentration wastewater is subjected to Fenton pretreatment, so that the biotoxicity is reduced, the B / C is improved, and the subsequent biochemical treatment capacity is greatly improved; in the tail end process, the MBR membrane tank is used for replacing a sedimentation tank, so that the solid-liquid separation effect can be improved, the sludge age is increased, the degradation efficiency of refractory organic matters is improved, and the area and civil engineering cost are saved; the problems of high cost and low efficiency in the prior art are solved.

Description

technical field [0001] The invention belongs to the field of environmental engineering sewage treatment, and in particular relates to a treatment process for pharmaceutical intermediate production wastewater. Background technique [0002] The pharmaceutical industry is an important link in economic development, which not only affects the level of economic development, but also affects the daily life and health of human beings. In human survival activities, different drugs are needed to deal with different diseases, which requires the production of various drugs, and the production of pharmaceutical intermediates is an indispensable link in drug production, which means that it is necessary to produce various pharmaceutical intermediates. Along with the production of pharmaceutical intermediates, various kinds of wastewater will be produced. Compared with ordinary wastewater, the production wastewater of pharmaceutical intermediates has complex components, high COD concentrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/32C02F103/34
CPCC02F9/00C02F1/56C02F1/5236C02F1/66C02F1/281C02F3/305C02F3/34C02F3/30C02F3/1268C02F1/722C02F1/72C02F2101/16C02F2101/32C02F2209/08C02F2103/343
Inventor 袁太阳陶旭峰王微陈瑛
Owner 浙江环之美环保科技有限公司
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