5 results about "Settling" patented technology

The invention discloses a method and a system for modularized combined treatment of high-difficulty organic waste water, and the treatment system comprises: a primary settling tank, an adjusting tank, a reinforced flocculation tank, a precipitation separation tank, a secondary flocculation settling tank, a buffering water tank, a pH adjusting tank, a primary honeycomb microelectrolytic tank, a flocculation settling tank, a secondary honeycomb microelectrolytic tank, an intermediate tank, a heat exchanger, a microwave catalytic oxidation device, a secondary catalytic oxidation pot, and a re-oxidation filter pipe. The treatment method adopts a combined technical scheme of a multistage honeycomb iron carbon microelectrolytic module, a reinforced flocculation module and a microwave electro-catalytic oxidation module; the invention has the characteristics of high applicability, good treatment effect, and unit modularization; the modules can be combined and cascaded freely according to the waste water condition, and thus different waste water treatment effect requirements and waste water quantity requirements are adapted; the operation cost is low; the sludge amount is low; no secondary pollution is caused; and the method is an environment-friendly high-difficulty waste water treatment method.

The traditional waste water treating process with added denitriding and dephosphorizing functions includes: throwing chemical dephosphorizing agent in the last section of settling pit, water outlet of the primary settling tank, or the aerobic section and outlet of the aerobic pond, and refluxing 30-60 % of active sludge and partial residual sludge to the primary settling tank to make traditional waste water treating process possess dephosphorizing function; connecting serially aerobic zeolite biofitering pond to the last section of the second settling pond to eliminate ammonia nitrogen with zeolite and chemical and biological synergistic regeneration to maintain the stable adsorption capacity of zeolite. The present invention is suitable for upgrading waste water treating yard, and has low cost.

The invention relates to a device for speeding up sludge settling by using vertical static electric field, which pertains to the technical field of sludge settling. The device essentially comprises a settling device and a static electric field generating device, wherein, the static electric field generating device comprises a DC power source, an anode and a cathode. The cathode is arranged at the upper part of the settling device and dipped under liquid level, the anode is arranged at the inner bottom part of the settling device, and both the cathode and the anode are connected with the DC power source by power lines. The settling device is used for holding sludge to be settled. The device can also speed up the settlement of the sludge under the effects of relatively low voltage and current, thus improving the settling efficiency of the sludge and providing feasible evidences for the improvement of the secondary settling technique of sewage treatment.

The invention discloses an apparatus and method for treating electroplating plant area sewage. The apparatus comprises a settling box, a settling cavity is arranged in the settling box, a first connecting tube intercommunicated with the settling cavity penetrates through the sidewall of the settling box, a second connecting tube intercommunicated with the settling cavity penetrates through the sidewall of one end, away from the first connecting tube, of the settling box, the sidewall of one end, away from the settling box, of the second connecting tube is connected with a stirring box, a stirring cavity is arranged in the stirring box, the second connecting tube penetrates through the sidewall of the stirring box and extends into the stirring cavity, two stirring rods penetrate through thesidewall of the upper end of the stirring box, the lower ends of the two stirring rods penetrate through the sidewall of the upper end of the stirring box and extend into the stirring cavity, and theouter sidewalls of sections, located in the stirring cavity, of the two stirring rods are provided with a plurality of fixing devices. The apparatus has the advantages of reasonable structural design, simplicity in operation, and ensuring of normal discharge of treated sewage by sufficiently treating the sewage.

The invention discloses a composite type anti-settling plate basis with railing gaps in a bottom plate and a manufacturing method thereof. The anti-settling plate basis is composed of the bottom plate and connecting beams, the surface of the basic bottom plate is in the shape of railing gaps, the width of gaps between every two adjacent steel plates is 0.1-0.3 time as wide as the width of the steel plates, the width of the gaps is equal or unequal, and upward or downward skirt plates may be arranged on the two sides of the bottom plate. The manufacturing method processes comprise basic bottom plate manufacturing and skirt plate and connecting beam welding on the basic bottom plate, wherein the basic bottom plate is formed by the steel plates which are arrayed and arranged, the gap left between the adjacent steel plates constitutes the railing gap of the basic bottom plate, and then the skirt plates and the connecting beams are welded on the bottom plate. The composite type anti-settling plate basis with railing gaps in the bottom plate and the manufacturing method thereof have the advantages that the manufacturing method is simple, the manufacturing cycle is short, the welding work amount is small, the manufacturing cost is low, and compared with a normal anti-settling plate basis, carrying capacity of the manufactured anti-settling plate basis improves 10%-50% on the basis that the structural rigidity is guaranteed.