Advanced anaerobic digestion sludge deep dehydration conditioning method based on particle size control, application of advanced anaerobic digestion sludge deep dehydration conditioning method and floc particles

The invention belongs to the field of sludge treatment and disposal, and particularly relates to an advanced anaerobic digestion sludge deep dehydration conditioning method based on particle size control, application thereof and floc particles. The advanced anaerobic digestion sludge deep dehydratio...

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Bibliographische Detailangaben
Hauptverfasser: WANG WEI, WEN YANG, LIU YAO, ZHAO YAWEI, FU XINGMIN, HAN JUN, WANG JIAWEI, SUN JILU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention belongs to the field of sludge treatment and disposal, and particularly relates to an advanced anaerobic digestion sludge deep dehydration conditioning method based on particle size control, application thereof and floc particles. The advanced anaerobic digestion sludge deep dehydration conditioning method comprises the following steps: (1) uniformly mixing advanced anaerobic digestion sludge with a first cation organic flocculant to obtain non-hard muddy flocculation particles; (2) uniformly mixing the muddy flocculation particles with aggregate; (3) uniformly mixing the obtained mixture with an inorganic agent; (4) adjusting the particle size of the floc particles by adopting a second organic flocculant; and (5) carrying out plate-frame dehydration so as to reduce the water content to 60% or below. By adopting a mode of combining organic flocculation nucleation with a particle size skeleton, the use amount of an inorganic agent is effectively reduced, so that the conductivity of the mud cake i