Sewage treatment device and sewage treatment method

Abstract

The invention discloses a sewage treatment device, which comprises a sewage storage device, a photocatalytic oxidation device, a settlement treatment device and a pH-value adjustment device. The photocatalytic oxidation device is communicated with the sewage storage device through a second channel, the photocatalytic oxidation device comprises a first water tank, a photocatalytic oxidation plate and an ultraviolet lamp; the photocatalytic oxidation plate is arranged in the water tank and the ultraviolet lamp can be used for irradiating the photocatalytic oxidation plate; the settlement treatment device is communicated with the photocatalytic oxidation device through a third channel and comprises a second water tank and a first reagent storage room communicated with the second water tank through a fifth channel; an alkaline reagent is stored in the first reagent storage room; the pH-value adjustment device is communicated with the settlement treatment device through a fourth channel and comprises a third water tank and a second reagent storage room communicated with the third water tank through a sixth channel; and an acidic reagent is stored in the second reagent storage room. By adoption of the sewage treatment device, treatment of sewage with complex pollutant components is realized. The invention also provides a sewage treatment method.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a sewage treatment device. The invention also provides a sewage treatment method. Background technique [0002] With the development of the world, the pressure of water resource shortage is increasing. To investigate the root cause of the water crisis, people are increasingly aware that the social cycle of water exceeds the range that the natural cycle of water can carry. Therefore, only by fully respecting the natural law of water movement and rationally using water resources can the water cycle in the upstream area not affect the water body function of the downstream water area, and the social cycle will not damage the objective law of natural cycle, so as to maintain or restore the good health of the city and even the watershed. The water environment is an effective way for the sustainable use of water resources. This requires us to change from the one-way...

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Problems solved by technology

[0003] It is relatively easy to remove suspended solid pollutants in sewage in modern sewage treatment, but after removing suspended solid pollutants in sewage, water pollution components also include organic matter, heavy metals, acid-base and bacteria, etc., although the market has already There are many kinds of sewage treatment equipment, but generally they only treat inorganic sewage or organic sewage such as heavy metals, and the pollution components that can be treated are relatively simple. For example, the Chinese patent, the patent number is 201010030145.8, and the patent name is "a biological laboratory "Waste liquid treatment method", the equipment mainly uses centrifuge, filter membrane or heating evaporation to realize solid-liquid separation, and then uses ultraviolet light or ozone to sterilize, only removes solid pollutants, bacteria and viruses in suspended state in sewage, for Heavy metals and acid and alkali have no effect; Chinese patent, patent number is 201020590744.0, and the patent name is "a kind of industrial comprehensive wastewater advanced treatment device", which mainly uses precipitation, nitrification, denitrification, flocculation and other means to realize the suspension of solid pollutants and The treatment of nitrogen-containing organic matter that can be degraded by microorganisms, but it cannot remove heavy metals, acid-base, bacteria, viruses and other pollution components.

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