Bottom sludge elution floating platform on basis of magnetic coagulation and loading processes

Abstract

The invention relates to a bottom sludge elution floating platform on the basis of magnetic coagulation and loading processes. The bottom sludge elution floating platform comprises a floating platform, a magnetic coagulation and loading device, an aeration disturbance device and a control room. The bottom sludge elution floating platform has the advantages that bottom sludge elution can be carriedout on large-volume water bodies by the aid of the magnetic coagulation and loading processes, and platform structures are optimized; the magnetic coagulation and loading processes have the characteristics of compact structures, the bottom sludge elution floating platform which is a product is designed to be modular and is convenient to detach and transport, and accordingly the operation efficiency and effects can be effectively improved; the bottom sludge elution floating platform can effectively adapt to various water areas and landforms, depths and environments, magnetic seeds in separatedfloc can be recycled, filter-press is carried out on sludge deposits, the sludge deposits are bagged and transported, and accordingly secondary pollution can be prevented.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a sediment elution floating platform based on magnetic coagulation and loading technology. Background technique [0002] In the past two decades, with the increasing eutrophication of natural lakes, rivers, landscape water and other water bodies, the water quality has continued to deteriorate; the water body has accumulated a large amount of sediment all year round, and the sediment contains a large amount of pollutants, including N, P and other nutrients and heavy metal pollutants. These pollutants have seriously damaged the water ecological environment and affected human health. [0003] At present, the treatment methods for sediment are mainly divided into three categories: 1. Physical restoration technology, which uses engineering technology to eliminate sediment pollution, mainly including dredging, water diversion, and sand filling and covering; 2. Aeratio...

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Problems solved by technology

These pollutants have seriously damaged the water ecological environment and affected human health.

[0003] At present, the treatment methods for sediment are mainly divided into three categories: 1. Physical restoration technology, which uses engineering technology to eliminate sediment pollution, mainly including dredging, water diversion, and sand filling and covering; 2. Aeration, adding aluminum salts, iron Coagulants such as salt inhibit the release of endogenous phosphorus, and the aeration method has the disadvantage of a small and uneven oxygenation range, and this method can only improve the black and odor phenomenon of the water body. In order to inhibit the eutrophication of the water body and achieve clear water quality, often It is necessary to add chemical agents to inhibit the release of endogenous phosphorus, thereby polluting the water body and affecting the aquatic ecology; 3. Bioremediation technology, which uses organisms to degrade water pollutants, eliminate sediment pollution, and reduce endogenous phosphorus loads. Bioremediation technology is slow to take effect, with obvious hysteresis, and most of them are still in the experimental stage, which is not suitable for large-scale promotion

[0004] Therefore, physical restoration technology is usually adopted in practice. For the method of dredging rivers in physical restoration technology, the equipment routinely used in the prior art is the sediment elution floating platform, which has the following disadvantages: 1. The traditional flocculation and sedimentation process is used in The processing process takes up a lot of space, and the processing flow per unit space is small; 2. The settlement is completely dependent on gravity, and the settlement efficiency is low; 3. The adaptability is poor, and it cannot respond to the complex and changeable site environment in time

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