Diversion and digestion circulating pool for carbon-rich sediments in riverway

Abstract

The river channel carbon-rich sediment diversion digestion circulating pool comprises a pool body, a slurry inlet and a slurry outlet are formed in the two ends in the pool body respectively, a diversion aeration area and a settling area are sequentially formed in an inner cavity of the pool body in the direction from the slurry inlet to the slurry outlet, and a plurality of diversion walls are arranged in the diversion aeration area at intervals in the direction from the slurry inlet to the slurry outlet; the flow guide walls are arranged in a staggered mode to form an S-shaped slurry circulation channel, and plug-flow aerators for pushing slurry to flow are arranged between every two adjacent flow guide walls and between the slurry inlet and the adjacent flow guide wall respectively. The device can be used for efficiently digesting carbon-rich sediment bottom mud in a small conditioning pond, can also be applied to a large mud storage pond in a bottom mud treatment plant, not only accelerates the flowing of mud in the large mud storage pond, but also has a certain conditioning effect on the mud, and avoids the influence of sedimentation on the subsequent treatment effect.

Description

technical field [0001] The invention relates to the field of water environment treatment, in particular to a channel carbon-rich sediment diversion and digestion circulation tank. Background technique [0002] At present, in the treatment of river dredging sediment, there is little advanced treatment of carbon-rich sediment sediment. Generally, it enters the concentration and dehydration link after simple pretreatment, and the organic matter contained in it is rarely treated. The pool body is generally composed of reinforced concrete structure, and the overall investment is relatively large. However, dredging and sediment treatment projects are often staged, and the sediment treatment plants are all temporarily built. Therefore, it is debatable how to effectively control investment and carry out advanced treatment of carbon-rich sediments without affecting the effect. [0003] In addition, a large-area mud storage tank is often set up in the bottom mud treatment plant. This...

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Problems solved by technology

However, the dredging and sediment treatment projects are often staged, and the sediment treatment plants are all in the form of temporary construction. Therefore, it is debatable how to effectively control investment and conduct advanced treatment of carbon-rich sediments without affecting the effect.

[0003] In addition, a large-area mud storage tank is often set up in the bottom sludge treatment plant. This tank has the characteristics of large area, large amount of mud storage, and complex mud components. The fluidity of the mud in it is poor, and it often enters the subsequent processing unit. The mud concentration is low, all of which are deposited at the front of the mud storage tank

Generally, after a certain period of time in the sediment treatment plant, it is necessary to manually or mechanically carry out secondary mixing and mixing, which is time-consuming and laborious and the effect is not good.

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