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A platform for research: civil engineering, architecture and urbanism
Dredged sludge solidification method
The invention discloses a dredged sludge solidification method, and relates to the technical field of sludge solidification. The method comprises the following steps: screening dredged sludge, removing garbage in the sludge, transferring the dredged sludge into a primary sedimentation tank, standing in the primary sedimentation tank to precipitate concentrated sludge in the primary sedimentation tank, transferring the concentrated sludge into a flocculation tank, adding a ferric chloride solution into the flocculation tank, uniformly stirring and mixing to obtain pre-flocculated sludge, pumping the pre-flocculated sludge into a homogenizing tank through a screw pump, adding a ferrous sulfate solution and hydrogen peroxide into the homogenizing tank, continuously stirring and mixing for 1-2hours, and adding a curing agent to obtain pre-cured sludge; conveying the pre-cured sludge to a diaphragm filter press for filter pressing, pressurizing, filter pressing and curing through compressed air, and conveying out the obtained cured sludge for resource reutilization. According to the dredged sludge curing method, the usage amount of the curing agent can be effectively reduced, the curing effect is good, and the strength of the obtained cured sludge is good.
本发明公开了一种疏浚淤泥固化方法，涉及淤泥固化技术领域，具体为将疏浚淤泥进行筛分，去除淤泥中的垃圾，转移至初沉池，在初沉池内静置沉淀初沉池内的浓缩污泥转移至絮凝池，在絮凝池中加入氯化铁溶液，搅拌混合均匀得到预絮凝污泥，将预絮凝污泥通过螺杆泵打至均化池，向均化池内加入硫酸亚铁溶液和双氧水，持续搅拌混合1‑2h，加入固化剂，得到预固化淤泥；将预固化淤泥输送至隔膜压滤机压滤，通过压缩空气加压压滤固化，得到的固化淤泥运出进行资源重复利用。本发明的一种疏浚淤泥固化方法，能够有效降低固化剂的使用量，且固化效果较好，得到的固化淤泥的强度较好。
Dredged sludge solidification method
The invention discloses a dredged sludge solidification method, and relates to the technical field of sludge solidification. The method comprises the following steps: screening dredged sludge, removing garbage in the sludge, transferring the dredged sludge into a primary sedimentation tank, standing in the primary sedimentation tank to precipitate concentrated sludge in the primary sedimentation tank, transferring the concentrated sludge into a flocculation tank, adding a ferric chloride solution into the flocculation tank, uniformly stirring and mixing to obtain pre-flocculated sludge, pumping the pre-flocculated sludge into a homogenizing tank through a screw pump, adding a ferrous sulfate solution and hydrogen peroxide into the homogenizing tank, continuously stirring and mixing for 1-2hours, and adding a curing agent to obtain pre-cured sludge; conveying the pre-cured sludge to a diaphragm filter press for filter pressing, pressurizing, filter pressing and curing through compressed air, and conveying out the obtained cured sludge for resource reutilization. According to the dredged sludge curing method, the usage amount of the curing agent can be effectively reduced, the curing effect is good, and the strength of the obtained cured sludge is good.
本发明公开了一种疏浚淤泥固化方法，涉及淤泥固化技术领域，具体为将疏浚淤泥进行筛分，去除淤泥中的垃圾，转移至初沉池，在初沉池内静置沉淀初沉池内的浓缩污泥转移至絮凝池，在絮凝池中加入氯化铁溶液，搅拌混合均匀得到预絮凝污泥，将预絮凝污泥通过螺杆泵打至均化池，向均化池内加入硫酸亚铁溶液和双氧水，持续搅拌混合1‑2h，加入固化剂，得到预固化淤泥；将预固化淤泥输送至隔膜压滤机压滤，通过压缩空气加压压滤固化，得到的固化淤泥运出进行资源重复利用。本发明的一种疏浚淤泥固化方法，能够有效降低固化剂的使用量，且固化效果较好，得到的固化淤泥的强度较好。
Dredged sludge solidification method
一种疏浚淤泥固化方法
LI JIE (author) / LI YUEFENG (author) / WANG YANG (author) / SU YUANYUAN (author) / DAI JIALIANG (author) / YING JIAJUN (author) / XU GANG (author)
2020-11-13
Patent
Electronic Resource
Chinese
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