103 results about "Interstitial water" patented technology

The invention discloses an electrolytic filtering / squeezing integrated sludge dewatering machine which comprises a primary squeezing and filtering region, an electrolytic filtering region, an electrolytic squeezing region and an external direct current power source, wherein the primary squeezing and filtering region, the electrolytic filtering region and the electrolytic squeezing region are sequentially arranged with one anther by taking a frame as a carrier. The sludge fallen from a hopper is primarily squeezed and filtered to remove the free water contained in the sludge. A driven upper filter strip and a driven lower filter strip are respectively and externally leaned against an upper squeezing strip and a lower squeezing strip connected the two poles of a direct current power source,so that the sludge clamped between the upper squeezing strip and the lower squeezing strip is electrolyzed, and the interstitial water and the cellular water in the sludge flow to the negative pole when the electric charge flows, i.e. the electrophoresis. The incompletely-dried sludge is carried into the electrolytic squeezing region and is forced under the condition that the sludge is stilled electrolyzed to accelerate the dewatering. By sequentially reducing the diameters of a plurality of the roll shafts and by adopting an installation technology measure that the adjoining roll shafts are installed in a misplaced way up and down, the machine can dewater by sequentially forcing, so that the dryness of a sludge cake is improved. The machine is particularly suitable for treating the biochemical active sludge precipitated by the urban domestic sewage or the industrial sewage.