33results about How to "Reduce backwash water consumption" patented technology

The invention discloses an integrated water treatment purifier which comprises a shell (1) with an inner chamber, wherein the upper part of the shell is connected with a water outlet pipe (2), the lower part of the shell is connected with a mud outlet pipe (4), and the inner chamber of the shell (1) is provided with a flocculation reaction device (5); the flocculation reaction device (5) comprises a water inlet pipe section (5a) and a reactor body (5b), wherein the inner chamber of the reactor body is provided with flocculated packing (5c), the lower part of the reactor body is provided with an upper tapered flow guide component (6), an inclined plate assembly (7) is formed on the outside of the periphery of the reactor body (5b), a lower chamber (1a) is formed in the inner chamber of the shell by the inclined plate assembly, the bottom of the lower chamber (1a) is a concentrated mud collection zone, a filter layer (8) is arranged above the inclined plate assembly (7), a middle chamber (1b) and an upper chamber (1c) are formed in the inner chamber of the shell by the filter layer (8), and the upper chamber (1c) is communicated with the water outlet pipe (2). The integrated water treatment purifier integrates flocculation, sedimentation, filtering and concentrated mud collection, and has the advantages of no mutual interference of functional zones, simple and compact structure and small floor area, which is favorable for enhancing the water quality of output water.

The invention relates to the field of chemical water production in power plants, and discloses a method for regenerating a desalting mixed bed. In the method, the liquid level in a mixed bed tank reduces to the top of a resin layer before the resin layer is subjected to hydrodynamic backwashing layering, and compressed air is introduced into the mixed bed tank to perform air washing, so the resinis effectively loosened, the water injection pressure of the subsequent backwashing step is reduced, the backwashing layering effect is enhanced, the backwashing layering time is significantly shortened, and the consumption of backwashing water in the resin backwashing layering process is reduced. After the resin is backwashed with water, the control of the concentrations and the flow amounts of aregeneration alkali solution and a regeneration alkali solution can significantly reduce the consumptions of the regeneration alkali solution and the regeneration alkali solution in the resin regenerating process and greatly shortens the regeneration time of the desalting mixed bed. The water production volume of the desalting mixed bed in a single period is high, and the outlet water of the regenerated desalting mixed bed has excellent quality.

The invention relates to the field of water treatment, in particular to a multi-medium filter backwashing technology. The multi-medium filter backwashing technology is characterized by adopting the following steps of: carrying out minor gas washing for 10-20 seconds until a filter material can just not flow out of a water outlet, falling on a bed, and carrying out gas washing for 240 seconds; carrying out minor backwashing for 50-60 seconds until water is filled in the filter and can just not flow out of the filter, pausing for 180 seconds, and carrying out backwashing for 600 seconds; and pausing for 300 seconds, and carrying out forward washing for 900 seconds. The multi-medium filter backwashing technology has the advantages of shortening bed falling time and backwashing technology time and increasing the efficiency by 50% or so; gas at the bottom of the filter and in the center of the filter material is discharged through minor backwashing so as to prevent filter material loss; a series of problems of backwashing strength control difficulty, filter material mixing, great filter material loss amount and the like are solved, and the quality of produced water is ensured; the amount of backwashing water is reduced, energy sources are saved, and the cost is reduced; and the full automatic control operation of the technology process is realized.

The invention discloses an aerating biological filter pool in the water disposal device domain, which comprises the following parts: filter pool within aerating device and filtering device, water inlet pipe on the bottom of filter pool, backwash drainage pipe on the bottom of filter pool, pulse air-chamber to interconnect bottom of filter pool through backwash inlet pipe and vent pipe, wherein the vent pipe lies in one end of water sealing pipe in the pulse air-chamber; the other end of vent pipe connects gas-water separator, whose top possesses connection pipe with bottom interconnecting the bottom of pulse air-chamber through connection pipe.

The present invention relates to a filter characterizing mutually arranged filter elements, and is especially tilting plate type filtering pool for use in water works. The tilting plate type filtering pool consists of filtering pool, reverse flush system, filtering system, sewage draining system and water influent and effluent system. The reverse flush system includes reverse flush valve, flushing air valve, water and air distributing transverse pipes, water distributing longitudinal pipes and air distributing longitudinal pipes; the filtering system includes anthracite layer, quartzite layer, coarse sand layer and pebble layer; the water influent and effluent system includes overflow weir plate, water effluent valve and water canal; and the sewage draining system includes tilting plate valve and canal. The present invention has less reverse flush water amount, short reverse flush time, high water effluent quality, low cost and other advantages.