Treatment process for medical intermediate production waste water

Abstract

The invention discloses a treatment process for medical intermediate production waste water, including sections of a pre-treatment, an anaerobic treatment, an aerobic treatment, and a post-treatment. The pre-treatment includes acid-base neutralization, coagulating sedimentation, and aerating regulation treatment, perforated pipe aerating regulation adopted by regulation pool. An anaerobic biochemical pool and a hydrolysis acidification pool is included in the anaerobic treatment, wherein a soft filler and a multi-face ball filler are installed and anaerobic active sludge is deployed in the anaerobic treatment pool; two stages of aerating biochemical pool are included, wherein a biological filler and a multi-face ball filler are installed, aerobic active sludge is deployed, and micro-porous aerating devices are installed at the bottom to provide oxygen to the aerobic sludge; waste water treated by the aerobic treatment is precipitated at a inclined pipe precipitation pool, a part of macromolecular pollutants are intercepted by a sand filtering pool, and the waste water meeting the standard through detection is discharged into the waste water pipe network in the area. The treatment process has advantages of simple process, convenient operation, low energy consumption, great treatment effect.

Description

1. Technical field [0001] The invention relates to a treatment method for industrial waste water, in particular to a treatment method for production waste water of pharmaceutical intermediates. 2. Background technology [0002] Environmental pollution in today's society is becoming more and more serious, and environmental pollution poses a serious threat to the national economy and people's health. The 2007 China Environmental Status Bulletin shows that in 2007, the total discharge of wastewater in the country was 55.67 billion tons, of which, the discharge of industrial wastewater was 24.65 billion tons, the discharge of domestic sewage was 31.02 billion tons; the discharge of chemical oxygen demand was 13.818 million tons; ammonia nitrogen emissions were 1.323 million tons (among them, industrial emissions were 340,000 tons and domestic emissions were 983,000 tons). In 2007, the total discharge of waste water in the country increased by 3.7% compared with the previous yea...

AI Technical Summary

Problems solved by technology

[0005] Pharmaceutical intermediate wastewater is mainly characterized by the following characteristics: 1) There are many types of pollutants, complex components, and high concentration of wastewater. Residual raw materials that are twice the amount of drug production pollute the environment in the form of wastewater; 2) The impact load is large, and the wastewater produced in batches in a single tank is discharged non-continuously, which greatly changes the composition and water volume of the wastewater; 3) Contains antibiotics to inhibit the growth of microorganisms , poor biodegradability; 4) high chroma; these characteristics have brought difficulty to processing

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