Fixed bed capable of realizing supporting bed regeneration and regeneration process thereof

Abstract

The invention discloses a fixed bed capable of realizing supporting bed regeneration and a regeneration process thereof. The fixed bed comprises a tank body with an accommodating space, an inert resinlayer and a base resin layer are arranged in the tank body from top to bottom; wherein a first free space and a second free space which are stacked up and down are formed between the inert resin layer and the base resin layer, the second free space is used for adding resin to form an adaptive resin layer, and the first free space and the second free space are used for providing required spaces for complete expansion of the base resin layer and the adaptive resin layer. According to the fixed bed, when the water quality deteriorates, resin can be added into the second free space to form an adaptive resin layer, so that the fixed bed adapts to water quality change, the operation period is kept unchanged, the periodic water production amount is maintained, the production stability is high, and the adaptability is high.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a fixed bed capable of bed regeneration and a regeneration process thereof. Background technique [0002] The existing co-current operation and counter-current regeneration full-chamber beds are designed according to the amount of resin to be filled under the given water quality conditions. Fill the bed with resin. [0003] However, with the intensification of water pollution and the gradual reduction of groundwater level due to over-exploitation, the quality of groundwater is getting worse and worse, or limited by the integrity of water quality data collection, the worst local water quality data cannot be obtained as a design basis. , the existing full-chamber bed designed according to the initial water quality data may not be able to fully meet the needs of use. When the deterioration of the influent water quality exceeds the design standard, the operating cycle of the...

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Problems solved by technology

[0002] The existing co-current operation and counter-current regeneration full chamber bed are all designed according to the amount of resin to be filled under the given water quality conditions. Once the bed is made, it cannot be fully filled later. bed filled with resin

[0003] However, with the intensification of water pollution and the gradual reduction of the groundwater level due to overexploitation, the water quality of the groundwater is getting worse, or the worst local water quality data cannot be obtained as a design basis due to the completeness of water quality data collection. , the existing full-cell bed designed according to the initial water quality data may not fully meet the use requirements. When the deterioration of the influent water quality exceeds the design standard, the operating cycle of the full-cell bed will be shortened, and under the same operating cycle conditions The quality of the final effluent water will become poor, making the production not stable enough and the production efficiency reduced

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