Re-modelling of an Activated Sludge Treatment Plant for Treatment Capacity Expansion and Biological Nutrient Removal

摘要

The subject innovation provides a remodeling device for increase the capacity of existing sewage treatment device for active slurry and improves for advanced treatment. The subject innovation is a primary settling tank, aeration tank, and the second method as the settling tank existing remodeling the active slurry apparatus for sewage treatment consisting of the first to install a canvas partition wall that is movable in the center of the sedimentation tank the primary settling tank internal anaerobic and anoxic division, partition, and the anaerobic tank, the inlet and the sewage, the anoxic tank has a primary sedimentation tank in a sewage treatment anaerobic tank to enter the flow through the top and the left and right gaps of the canvas, the partition wall; Aeration tank to transport the sikimyeo given up when supplied to the wastewater treatment in the collapsed tank, for supplying the sewage to the activated secondary clarifier the other hand, activated sewage (MLSS) in part in the anoxic tank via internal recycle pump removable; The secondary both ends to the center of the secondary settling tank side wall of the settling tank and a predetermined enough to install an open oxidation ditch partition wall, and divided into two sides, oxidation ditch inclined plate settling device to a side space of the secondary settling tank defined by the oxidation ditch bulkhead spacing installed to the secondary settling tank is installed to give an induced the precipitation of sludge and the sewage circulating in the secondary settling tank in the other side space divided by the partition wall in the longitudinal direction of the oxidation ditch oxidation ditch the partition wall; That is configured to be characterized.