Sludge treatment process
The invention belongs to the field of environmental protection and particularly relates to a sludge treatment process. The sludge treatment process comprises the following steps: (1) carrying out impurity removal: filtering garbage from sludge by using multiple stages of grilles; (2) carrying out pr...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention belongs to the field of environmental protection and particularly relates to a sludge treatment process. The sludge treatment process comprises the following steps: (1) carrying out impurity removal: filtering garbage from sludge by using multiple stages of grilles; (2) carrying out pretreatment: carrying out pretreatment on the sludge by using three stages of sludge sedimentation tanks, so as to obtain sludge in the sludge sedimentation tank of a first stage, the sludge sedimentation tank of a second stage and the sludge sedimentation tank of a third stage, sludge slurry subjected to sedimentation by the three stages of sludge sedimentation tanks and supernatant; (3) carrying out curing treatment: carrying out dehydrating curing on the sludge in the sludge sedimentation tanks of the first, second and third stages and the sludge slurry by separately adopting mixing curing and dehydrating curing methods, so as to obtain sludge cured soil A and sludge cured soil B; (4) carrying out stacking aging: |
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