CN2453001Y

CN2453001Y - Spiral tpye anaerobic sludge bed reactor

Info

Publication number: CN2453001Y
Application number: CN 00230445
Authority: CN
Inventors: 陶志国; 陶畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-20
Filing date: 2000-07-20
Publication date: 2001-10-10
Anticipated expiration: 2010-07-20

Abstract

The utility model provides a spiral type anaerobic sludge reactor. Spiral boards are used for enclosing a spiral water channel in a sealed reactor, the water channel is divided into a plurality of reaction areas by baffle plates, and the bottom of each reaction area is provided with a sludge returning ditch. The utility model can be used for disposing various kinds of waste water, and has the advantages of wide adaptability, high treatment efficiency, little sludge remnant, good concentration and dehydration property of sludge, returned sludge, long-term storage, small size, closed running, less investment and easy technology. The volume of the utility model disposing the waster water with the same quantity can be reduced by more than 90%, the odour problem is solved, and the output water quality can completely reach the state standard of effluent discharge.

Description

Spiral anaerobic mud bed reactor

The utility model relates to a kind of waste disposal plant, especially a kind of spiral anaerobic mud bed reactor.

The anaerobic biological treatment waste water technology has had more than 100 year history, and former people just use septic tank and two settling tank to handle waste water, and treatment effect is relatively poor, and waste material need stop long time.Outstanding along with energy problem, the requirement that develops energy-efficient waste water treatment process is urgent further.

Many countries begin to greatly develop the anaerobic waste water reactor in the 60 to 70's, and anaerobic filter is typically arranged, upflow anaerobic sludge blanket reactor, anaerobism coherent film expanded bed, downstriker fixed-film reactor, anaerobic fluidized bed etc.These are called as, and s-generation anaerobic reactor has solved anaerobion poor growth (characteristics of anaerobic process itself) and biomass is easily washed out unfavorable factors such as (weakness of traditional anaerobic reactor) and mud layering by liquid.

Along with people constantly study and practice anaerobic technique, obtained very big development and progress in recent years.Heating and whipping appts in traditional reactor, have been increased, overcome and had only the segment space decomposing organic matter, make microorganism and organism can obtain uniform contact, improved the ability of anaerobion degradation of organic substances greatly, shortened organism and stablized the required time.

If adopt local mud heating, then easily overheated, influence the normal activity of anaerobion, thereby increase the water ratio of mud; Though the external heating in pond is easy to control, equipment is complicated.Stirring means has mechanical stirring and biogas to stir, but no matter be that mechanical stirring or biogas stir, owing to stir the interior mud of high speed reactor can not be concentrated, Digestive system can not separate, so in order to carry out solid-liquid separation, the reactor of not adorning whipping appts of often connecting again one comes separating digesting liquid, thereby has increased the equipment and the fund of treatment unit.

The purpose of this utility model provides that a kind of volume is little, processing efficiency is high, less investment, technology are easily grasped, can be realized closed running, solve bad-smell problem, surplus sludge volume is few, but returned sluge long storage, applied range, effluent quality can reach the spiral anaerobic mud bed reactor of discharging standards fully.

The utility model is achieved in that the reactor arc center of top in sealing has gas skirt, (5 feed reactor center and arrive the bottom down water inlet pipe, last reaction zone has water shoot (10), surround the spirrillum water channel with spiral plate (3) in the reactor, and water channel being divided into several reaction zones (7) with baffle plate (4), mud backflow ditch (2) is all established in each reaction zone bottom.

Advantage of the present utility model is remarkable:

1. applied range, energy consumption is low.

2. surplus sludge volume is few, and sludge concentration and dewatering is good, and returned sluge, but long storage has overcome the blockage problem of anaerobic filter.

3. nitrogen phosphorus nutrition requirement is less, BOD: N: P is 100: 2.5: 0.5, and anaerobic treatment has certain germicidal action.

4. to handling complicated all kinds of waste water adaptability is arranged more, and the processing efficiency height.

5. volume is little, handles the waste water of isodose, and volume can reduce in more than 90%.

6. can realize closed running, solve bad-smell problem, and less investment, technology is easier to grasp.

Through all kinds of waste water that the utility model was handled, effluent quality can reach discharging standards fully.

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model transverse section vertical view.

Fig. 3 is the utility model reaction zone schematic perspective view.

Spiral anaerobic mud bed reactor is the anaerobic reactor that screw is housed.Spiral anaerobic reactor by Chi Ding, pond body and pond at the bottom of three parts form, generally use material manufacturings such as steel plate material, thick iron sheet, after the processing of leakproof corrosion resistant, use, also available steel bar concrete casting forms.Chi Ding is configured with two kinds of fixed cap and floating covers, and that the pond Bottom Shape has is flat, at the bottom of the arcuate bottom, ladder etc.Usually adopt fixed cap Chi Ding, fixed cap is equipped with gas skirt as the curved top of an arc in the Chi Dingzhong.Screw is that pond each size of body is determined in design according to the pond body.

A, centrifugal district 11 (heart area), it is installed in the centre bottom of reactor, plays stirring action under impact of water.

B, water feed apparatus, the function of water feed apparatus 5 mainly are the heart area of waste water being delivered to helical reactors, and this is one of key of the efficient operation of reactor.

C, reaction zone, comprising Sludge Bed district 1 and spiral sludge suspension floor district 7, organism is mainly here decomposed by anerobe, and this is the main position of reactor.

D, disengaging zone, the disengaging zone is made up of settling region, helical baffle 3, backflow ditch 2, and its function is the biogas of mixture slaking liquid, mud and liquid separately.Mud is got back to reaction zone from the settling region through the helical baffle ditch of going into to reflux, and biogas enters collection chamber after separating.The separating effect of disengaging zone will directly influence the treatment effect of reactor.

E, discharging device 10, its effect are that settling region water surface treated water is discharged reactor.

F, collection chamber 6, air chamber claim that also its effect of gas skirt is to collect biogas.

G, biotic district 9 are provided with fixedly wadding by specification stage casing on reactor.

The center of screw is to determine that by the pond body optimum size dresses up a cylindrical shape with spiral plate 3, this is the heart area of screw reactor, can the cylinder diameter size also is related to feed liquid play stirring action under impact of water, it is installed in the centre bottom of reactor, water inlet pipe 5 directly gets off to the bottom from the top, water is delivered to centrifugal district stir (under the impact of water) feed liquid is fully contacted mixing.

Press design specification circle curl water channel from heart area 11 super helix plates 3, and water channel is divided into several reaction zones 7 with baffle plate 4, mud backflow ditch 2 is all arranged at the bottom of each reaction zone, when feed liquid runs to first reaction zone from centrifugal district through spiral channel, the acidifying feed liquid begins DeR, good mud granule is got back to the center Sludge Bed by bottom backflow ditch, thereby increases sludge concentration.Collect collection chamber when producing biogas, feed liquid runs to bio-reaction zone thus, the biotic district is the zone that first reaction zone is surrounded, the biotic district is exactly by specification fixedly wadding to be set in the stage casing of this reactor, microorganism just breeds in wadding, thereby improves impact-resistant ability and Treatment Stability.

Through the processing of what reaction zone, the feed liquid turnover panel is to the disengaging zone, and it upwards sends into collection chamber 6 to biogas, and activity sludge reflux is to the mud central section, with new feed liquor hybrid reaction, consumption.At last, treating water is discharged by the top of this disengaging zone.Last reaction zone has water shoot 10.

Claims

1, a kind of spiral anaerobic sludge reactor, the reactor arc center of top that comprises sealing has gas skirt, water inlet pipe (5) feeds reactor center and arrives the bottom down, last reaction zone has water shoot (10), it is characterized in that: surround the spirrillum water channel with spiral plate (3) in the reactor, and water channel being divided into several reaction zones (7) with baffle plate (4), mud backflow ditch (2) is all established in each reaction zone bottom.