Hospital sewage treatment system and method

Abstract

The invention discloses a hospital sewage treatment process system and method. A sludge discharge pipeline is arranged at the bottom of a hydrolysis acidification pool, a grating well is connected with a comprehensive adjusting pool through a first lifting pump, the comprehensive adjusting pool is connected with the hydrolysis acidification pool through a second lifting pump, and the hydrolysis acidification pool is connected with a sludge concentration pool and a contact oxidation pool respectively. The invention has the beneficial effects that: pretreated sewage in the hydrolysis acidification pool enters the contact oxidation pool for treatment by a biological film, the biological film is an ecological system composed of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa, algae and the like. Firstly, the biological film adsorbs organic matters in a water layer, the organic matters are decomposed by utilizing aerobic bacteria and then enter an anaerobic layer to be subjected to anaerobic decomposition, meanwhile, flowing water can wash away the aged biological film to grow a new biological film, and the aim of purifying water can be achievedthrough the circulation.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a hospital sewage treatment system and method. Background technique [0002] As my country's economic development has accelerated in recent years, people's material living conditions and medical conditions have continued to improve, people have paid more attention to their own health, and the frequency and demand for medical treatment have increased, resulting in an increase in the amount of hospital sewage. Hospital sewage mainly includes two parts, that is, medical wastewater generated by various departments during operation, and hospital domestic sewage. The main pollutants are organic pollutants, pathogenic microorganisms and viruses. Sewage contains a large number of germs, which has the potential risk of disease transmission, which is likely to cause a variety of infectious diseases and epidemics. Moreover, some pathogenic bacteria have certain resistance to the su...

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Problems solved by technology

[0003] At present, general hospitals mostly use mechanical grille plus chemical treatment to treat sewage. Although the process is simple and the investment is low, the cost of using chemical agents is high, and it cannot effectively remove macromolecular organic substances in sewage. At the same time, a large number of The use of chemical agents has adverse effects on the health of operators, and produces a large amount of sludge containing pathogenic microorganisms and viruses, which is likely to cause secondary pollution to the environment

There are also some hospitals that use biological aerated filters to treat sewage. Although the operation effect is good, it is difficult to remove refractory biodegradable pollutants in the water with a single treatment method, and the maintenance and replacement of filter materials in the later period is expensive, and operation management The high cost brings great difficulty to the operation and management of the hospital

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