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A platform for research: civil engineering, architecture and urbanism
River sediment dredging and dewatering method and system
The invention belongs to the technical field of river regulation, and particularly relates to a river sediment dredging and dewatering method and system.The river sediment dredging and dewatering system comprises a stirring barrel, a sludge settling pond, a liquid homogenizing pond and a liquid outlet pond which are sequentially connected end to end, and the stirring barrel is located at the foremost end and connected with the sludge settling pond through a discharging pipe; the sludge sedimentation tank, the liquid homogenizing tank and the liquid outlet tank are separated by partition plates and are communicated with one another, and the sludge sedimentation tank is communicated with the liquid homogenizing tank through a discharge port; the dredging bottom mud dewatering and drying device adopting cofferdam, pool building, suction, chemical adding and stirring, standing and water draining and curing has continuity and high construction efficiency, whole-process closed treatment is achieved, secondary pollution is effectively avoided, reinforced agglomeration and rapid sedimentation of dredging mud are achieved by adopting an efficient ionic polymeric flocculant, and the quality of the dredged mud is improved. Meanwhile, COD (Chemical Oxygen Demand) and total phosphorus in the water can be synchronously adsorbed and removed, and ammonia nitrogen in the residual water is further removed by adding sodium hypochlorite into the homogenizing tank.
本发明属于河道治理技术领域，具体的说是一种河道底泥疏浚脱水方法及系统，包括首尾依次相连的搅拌桶‑淤泥沉淀池‑液体均质池‑液体出水池，所述搅拌桶位于最前端，并通过出料管与淤泥沉淀池相连，所述淤泥沉淀池、液体均质池和液体出水池之间通过隔板隔开并相互连通，且所述淤泥沉淀池与液体均质池之间通过排出口相连通；采用围堰、建池、抽吸、加药搅拌、静置排水、固化的疏浚底泥脱水干化装置，具有连续性，施工效率高，全程封闭处理，有效避免了二次污染，采用高效的离子性高分子絮凝剂实现了疏浚泥浆的强化成团与快速沉降，同时对水中的COD和总磷可同步吸附去除，在均质池中通过投加次氯酸钠对余水中氨氮进一步去除。
River sediment dredging and dewatering method and system
The invention belongs to the technical field of river regulation, and particularly relates to a river sediment dredging and dewatering method and system.The river sediment dredging and dewatering system comprises a stirring barrel, a sludge settling pond, a liquid homogenizing pond and a liquid outlet pond which are sequentially connected end to end, and the stirring barrel is located at the foremost end and connected with the sludge settling pond through a discharging pipe; the sludge sedimentation tank, the liquid homogenizing tank and the liquid outlet tank are separated by partition plates and are communicated with one another, and the sludge sedimentation tank is communicated with the liquid homogenizing tank through a discharge port; the dredging bottom mud dewatering and drying device adopting cofferdam, pool building, suction, chemical adding and stirring, standing and water draining and curing has continuity and high construction efficiency, whole-process closed treatment is achieved, secondary pollution is effectively avoided, reinforced agglomeration and rapid sedimentation of dredging mud are achieved by adopting an efficient ionic polymeric flocculant, and the quality of the dredged mud is improved. Meanwhile, COD (Chemical Oxygen Demand) and total phosphorus in the water can be synchronously adsorbed and removed, and ammonia nitrogen in the residual water is further removed by adding sodium hypochlorite into the homogenizing tank.
本发明属于河道治理技术领域，具体的说是一种河道底泥疏浚脱水方法及系统，包括首尾依次相连的搅拌桶‑淤泥沉淀池‑液体均质池‑液体出水池，所述搅拌桶位于最前端，并通过出料管与淤泥沉淀池相连，所述淤泥沉淀池、液体均质池和液体出水池之间通过隔板隔开并相互连通，且所述淤泥沉淀池与液体均质池之间通过排出口相连通；采用围堰、建池、抽吸、加药搅拌、静置排水、固化的疏浚底泥脱水干化装置，具有连续性，施工效率高，全程封闭处理，有效避免了二次污染，采用高效的离子性高分子絮凝剂实现了疏浚泥浆的强化成团与快速沉降，同时对水中的COD和总磷可同步吸附去除，在均质池中通过投加次氯酸钠对余水中氨氮进一步去除。
River sediment dredging and dewatering method and system
一种河道底泥疏浚脱水方法及系统
LU CHUN (author) / XU ZUXIN (author) / DONG BIN (author) / ZHANG YUNHUI (author)
2024-11-05
Patent
Electronic Resource
Chinese
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