Advanced purification treatment system for high concentrated organic wastewater

Abstract

The invention relates to a deep purification treatment system for high-concentration organic wastewater. The system comprises a grid, an aeration adjustment pool, a coagulation pool, a primary precipitation pool, an anaerobic pool, a hydrolysis acidification pool, an aerobic biofilter, a secondary precipitation pool, deep oxidation equipment, a sludge pool and a recycling water storage pool; through coagulation and primary precipitation, partial organic pollutants and suspended particulate matters in wastewater are removed; through anaerobic, anoxic and aerobic multistage mutual function, firstly, large-molecule organic matters are degraded to small-molecule organic matters; the small-molecule organic matters are decomposed to inorganic oxide and water through aerobic microorganism; the residual organic molecules in the water which are different to have biological decomposition under usual condition are subjected to further oxidation treatment through the deep oxidation equipment; the deep oxidation equipment preferentially selects a photocatalytic oxidation purifier with ozone input; through the oxidation function of ozone under catalysis of an photocatalyst, outlet water formed finally has high purification degree and no biological pollution and can be used as recycled water; and the deep purification treatment system is suitable for treating various wastewater with high concentration and organic pollution.

Description

technical field [0001] The invention relates to a purification system for high-concentration organic waste water, and the purified effluent can reach the reuse standard of reclaimed water. Background technique [0002] The treatment of organic wastewater generally adopts various biological treatment methods, mainly including aerobic biological treatment, hydrolytic acidification treatment under anoxic state and anaerobic biological treatment under anaerobic state. Due to the relatively high degree of purification of aerobic treatment, The content of pollutants is low, which is selected for most treatment systems, while anaerobic biological treatment and hydrolytic acidification biological treatment are beneficial to degrade large organic molecules that are difficult to aerobic biochemical into small molecules, and the sludge is relatively small, usually for large-scale treatment systems Selected and combined with aerobic biological treatment to form a group treatment system,...

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Problems solved by technology

[0002] The treatment of organic wastewater generally adopts various biological treatment methods, mainly including aerobic biological treatment, hydrolytic acidification treatment under anoxic state and anaerobic biological treatment under anaerobic state. Due to the relatively high degree of purification of aerobic treatment, The content of pollutants is low, which is selected for most treatment systems, while anaerobic biological treatment and hydrolytic acidification biological treatment are beneficial to degrade large organic molecules that are difficult to aerobic biochemical into small molecules, and the sludge is relatively small, usually for large-scale treatment systems Selected and combined with aerobic biological treatment to form a group treatment system, the selection and cooperation of these treatment technologies have their own characteristics, and have their advantages and adaptability in different occasions, but one of these pure biological treatment methods The common defect is that there are some organic molecules that are difficult to biodegrade. Even if the hydraulic retention time and the treatment process are increased, the effect is limited. The degree of purification of the effluent is not high, and it is usually not suitable for recycling, resulting in waste of water resources.

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