Combined system for removing antibiotic from pharmacy waste water by using hydroxyl radical

Abstract

The invention provides a combined system for removing antibiotic from pharmacy waste water by using hydroxyl radical and relate to radical chemistry and water treatment application. The combined system is provided with a hydroxyl radical solution generation device, a first liquid hydraulic cavitation mixing and dissolving device, a second liquid hydraulic cavitation mixing and dissolving device, agrille pool, an adjusting pool, a coagulating pool, a primary settling tank, a secondary settling tank, an SBR biochemical reaction pool, first to third mechanical pumps, first to fourth water flow meters, first to tenth electromagnetic valves and first to fifth unit water outlet valves. Water chromaticity, COD and total organic carbon can be reduced while the antibiotic in the waste water is removed; in the treated waste water, the chromaticity is less than 30 degrees, BOD5 is less than 10 mg/L, COD is less than 50 mg/L, ammonium nitrogen is less than 5 mg/L, the total organic carbon is lessthan 15 mg/L, and various indexes meet the requirement of 'Pharmacy Industry Water Pollutant Discharge Standard'. The system has the advantages of being high in pollutant treating effect, high in decomposition speed, low in occupied area, high in automation degree, and the like.

Description

technical background [0001] The invention relates to the application of free radical chemistry and water treatment, in particular to a combined system for removing antibiotics in pharmaceutical wastewater by hydroxyl radicals. Background technique [0002] With the development of the modernization of pharmaceutical technology, my country's pharmaceutical industry has developed rapidly. In terms of antibiotic pharmaceuticals, my country is already in the leading position in the world. More than 300 domestic enterprises produce more than 70 varieties of antibiotics, which account for 20% to 30% of the world's output. China has become one of the world's major producers of antibiotic preparations. [0003] At the same time of rapid development, the discharge of pharmaceutical wastewater has become more and more prominent. As one of the main types, antibiotic pharmaceutical wastewater is a kind of high-concentration organic wastewater with high chroma, refractory biodegradatio...

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Problems solved by technology

However, due to the high cost of advanced oxidation technology and the complexity of some pro

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