CN105174487A - Composite hydrolysis acidification reactor and technology - Google Patents
Composite hydrolysis acidification reactor and technology Download PDFInfo
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- CN105174487A CN105174487A CN201510465364.1A CN201510465364A CN105174487A CN 105174487 A CN105174487 A CN 105174487A CN 201510465364 A CN201510465364 A CN 201510465364A CN 105174487 A CN105174487 A CN 105174487A
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Abstract
The invention discloses a composite hydrolysis acidification reactor and technology. The reactor comprises a reaction cylinder, a water distribution system, a microorganism dosing system, a sewage input pipe and a sludge pipe. A sludge filling material layer, a filling material biological membrane and a water output region are arranged in the reaction cylinder in order from bottom to top. The water distribution system comprises at least a point-to-point water distributor located at the top inside the reaction cylinder and a plurality of water distribution points distributed at the bottom in the reaction cylinder uniformly. Each water distribution point is connected with the point-to-point water distributor through a water distribution flexible pipe. The microorganism dosing system is located outside the reaction cylinder and is connected with the point-to-point water distributor. The sewage input pipe is connected with the point-to-point water distributor. The sludge pipe is arranged at the bottom inside the reaction cylinder. High-efficiency special microbial agents, the point-to-point water distributor and a sludge membrane symbiotic system are integrated, and a composite hydrolysis acidification tank sewage processing method and device are provided.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of organic wastewater with difficult degradation thereby pretreatment technology and device.
Background technology
For the organic wastewater with difficult degradation thereby had a large capacity and a wide range, adopt single aerobic biochemical process process to be difficult to qualified discharge, and adopt physical chemistry method, working cost is too high again.Utilize hydrolysis acidification method to carry out pre-treatment to organic wastewater with difficult degradation thereby, then the method connecing aerobic treatment is used widely.Such as, publication number is the Chinese invention patent application document of CN102583927A, a kind of micro-oxygen hydrolysis acidification sludge method, the mud of inoculation containing acid-producing bacteria in reactor for hydrolysis and acidification, pass into air to reactor for hydrolysis and acidification discontinuous and carry out pneumatic blending, and assist intermittent type mechanical stirring simultaneously, under maintenance dissolved oxygen DO is the micro-oxygen conditions of 0.4 ~ 0.8mg/L, sludge of sewage treatment plant is hydrolyzed acidifying, mud after acidication process enters settling tank mud-water separation, and supernatant liquor is as the carbon source of Biological Nutrient Removal process.
It is low that acidication pre-treatment has running cost, high to the transformation efficiency of hardly degraded organic substance, and can increase substantially the biodegradability of waste water, discharges carbon source simultaneously, for follow-up denitrification denitrogenation provides favourable condition.Waste water after acidication realizes efficient degradation in follow-up routine biochemistry section.
Hydrolysis acidification method process organic wastewater with difficult degradation thereby is by large quantity research and Practical Project are confirmed.But still there is the short stream of waterpower and dead angle in actual applications, waste water fully can not mix with mud and contacts, the problems such as acidication less effective.In prior art, publication number is that the Chinese invention of CN102531307A application discloses that the hydrolysis reactor that a kind of reinforcement sludge utilizes and technique thereof.The method is upper strata water-distributing device by arranging in reactor shell and lower floor's water-distributing device, form sludge hydrolytic district and solid-liquid displacement zone, increase sludge retention time, strengthening retains sludge hydrolytic, the small organic molecule that sewage and mud synchronous hydrolysis discharge can be used as the high-quality carbon source of follow-up denitrification dephosphorization technique, alleviates municipal effluent denitrogenation dephosphorizing carbon source and lacks problem.
But although said hydrolyzed technique adopts two-layer water-distributing device, owing to adopting perforation water distributor water distribution, still existing can not water distribution uniformity, there is the problems such as the short stream of waterpower and dead angle, causes acidication less effective.Simultaneously when without water inlet, the suspended sludge layer in pond can be deposited in bottom hydrolytic tank owing to not having the support effect of ascending current, forms anaerobic environment, is unfavorable for the steady running of hydrolysis acidification pool.
In addition, in prior art, publication number is that the Chinese invention of CN102633358A discloses an a kind of hole one pipe flow lifting type hydrolysis acidification pool.The method is by arranging a hole one tubular type water distribution system, and the flooding quantity achieving hydrolysis acidification pool constituent parts area is substantially identical, solves a difficult problem for uniformity of water distribution.Due to general all containing poisonous and hazardous material in difficult-degradation organic sewage, restraining effect can be produced to the microorganism in hydrolysis acidification pool, and then affect the acidication effect of sewage.
Summary of the invention
For current for most of hydrolysis acidification pool due to hazardous and noxious substances in high concentrated organic wastewater and hardly degraded organic substance ratio higher and cause the present situation of acidication less effective, efficient obligate microbiobacterial agent, point-to-point water distribution system and Activated sludge-biofilm system organically combine by the present invention, propose a kind of composite hydrolysis acidification pool sewage water treatment method and device.
A kind of composite hydrolysis acidification reactor, comprising:
Reacting cylinder body, set gradually sludge media layer, filler biological rete and exhalant region in this reacting cylinder body from the bottom to top, exhalant region sets out mill weir;
Water distribution system, this water distribution system comprises at least one the point-to-point water distributor being positioned at reacting cylinder body inner top and the some cloth water spots being uniformly distributed in reacting cylinder body inner bottom part, and each cloth water spot is all hose connection to point-to-point water distributor by corresponding water distribution;
Microorganism dosing system, is positioned at reacting cylinder body outer and be connected with described point-to-point water distributor;
Sewage water inlet pipe, is connected to point-to-point water distributor;
Shore pipe, is arranged at the bottom in reacting cylinder body.
The present invention is directed at present for most of hydrolysis acidification pool due to hazardous and noxious substances in high concentrated organic wastewater and hardly degraded organic substance ratio higher and cause the present situation of acidication less effective, by efficient obligate microbiobacterial agent, point-to-point water distribution system and Activated sludge-biofilm system organically combine, after first sewage mix with the efficient obligate microbiobacterial agent added, again by point-to-point water distributor and cloth water tube hose by sewage quantity uniformly distributing to reactor bottom, rise from reactor bottom equably, according to entering suspended sludge layer and filler biological rete, first through Physical entrapment and the acidication effect of suspended sludge layer, evenly hydrolytic tank is flowed out by the zig-zag effluent weir being arranged on hydrolytic tank top again after filler biological rete facultative microbe Degradation.
Preferably, described point-to-point water distributor comprises: the device body be communicated with sewage water inlet pipe; And the water outlet be uniformly distributed in bottom device body, water outlet connects cloth water tube hose.
Further preferably, described device body is provided with inhalant region, inhalant region arranged outside annular exhalant region, and top, annular exhalant region is closed by cutting dirty net; Described sewage water inlet pipe is connected to inhalant region, described water outlet evenly arrange with exhalant region bottom.
Further, separated by water distributor effluent weir between described inhalant region and exhalant region.
Sewage sends into the inhalant region of point-to-point water distributor, and by effluent weir overflow to annular exhalant region, water outlet is positioned at the bottom of annular exhalant region, filters by cutting dirty net when annular exhalant region is entered in overflow, prevents the foreign material blocking cloth water tube hose in sewage.
Cloth water tube hose top is connected with the water outlet of point-to-point water distributor, cloth water tube hose bottom be evenly arranged in pond base fabric water spot and be connected, cloth water tube hose adopts hydraucone to be connected with pond base fabric water spot, and namely the water outlet of cloth water tube hose adopts enlarging design.
Preferably, all-pair point water distributor is evenly distributed on the top in reacting cylinder body.Magnitude setting adjusts according to the volume size of reacting cylinder body, and the cloth water spot of reacting cylinder body inner bottom part is connected with corresponding point-to-point water distributor by cloth water tube hose.
Preferably, described microorganism dosing system comprises:
Expansion for microorganism culturing is equipped puts;
Be arranged on the line mixer on inlet channel;
Connect to expand to be equipped with and put the drug feeding pipeline with line mixer.
The microorganism device that spreads cultivation adds high-effective microorganism microbial inoculum to line mixer by drug feeding pipeline, enters the point-to-point water distributor being located at reactor for hydrolysis and acidification cylindrical shell top with sewage after fully being mixed by high-effective microorganism microbial inoculum again.
Preferably, described reacting cylinder body is also provided with reflux pump outward, and the water absorption tube of this reflux pump is arranged in exhalant region, and the rising pipe of reflux pump is arranged on the bottom in reacting cylinder body.
Further, the water absorption tube of reflux pump with perforated pipe arranged in form in being positioned on the reacting cylinder body inwall below effluent weir; The rising pipe of reflux pump with perforated pipe arranged in form bottom reacting cylinder body.
By the reflux pump that is arranged on reactor outside by reactor top sewage backflow to reactor bottom (namely below suspended sludge layer), thus avoid flooding quantity little or do not intake time reactor in upflow velocity is low, mud can not form suspended layer defect; Reflux pump reflux pump when normal water yield water inlet can not be opened.
When suspended sludge layer sludge concentration exceedes set(ting)value, excess sludge is discharged by shore pipe.Described shore pipe is perforated pipe.
Preferably, the ratio of the vertical height between described suspended sludge layer and filler biological rete is 1:1-1:1.5.Suspended sludge layer and filler biological rete is formed in reactor shell, suspended sludge layer is mainly by Physical entrapment and the acidication effect of active sludge, packing layer is mainly by being attached to the biomembranous facultative microbe Degradation on filler, and filler adopts hydrolysis acidification pool customary filler; The high-effective microorganism microbial inoculum simultaneously added also provide enhanced the acidication effect of active sludge and biomembranous facultative microbe Degradation, significantly improves acidication effect.
The present invention also provides a kind of composite hydrolysis acidification technique, preferably adopts reactor of the present invention to carry out, comprises the steps:
Microbiobacterial agent mixes in the point-to-point water distributor in rear feeding reactor with treatment sewage, sewage is evenly laid in the bottom of reactor by point-to-point water distributor by cloth water tube hose and the equally distributed cloth water spot of reactor bottom, sewage rises, according to entering suspended sludge layer and filler biological rete from reactor bottom equably; The effluent weir of sewage after acidication through exhalant region, reactor top evenly flows out; When suspended sludge layer sludge concentration exceedes set(ting)value, excess sludge is discharged by shore pipe.
Preferably, when suspended sludge concentration gets rid of excess sludge more than during 8000mg/L.
Preferably, when treatment sewage flooding quantity is not enough to the sludge suspension making suspended sludge layer, by the recycle pump of reactor outside by the sewage backflow of exhalant region to reactor bottom, backflow sewage quantity is 0-1:1 with the ratio for the treatment of sewage flooding quantity.
Preferably, in reactor, sewage upflow velocity is 0.5-1.5m/h; The residence time of sewage in reactor is 6-24h.Further preferably, in reactor, sewage upflow velocity is 1.0-1.2m/h; The residence time of sewage in reactor is 14-24h;
Preferably, sludge retention time is 10-30d.
Described microbiobacterial agent can adopt sewage treatment area to commonly use microbiobacterial agent, can be such as by photosynthetic bacterium, the microbiobacterial agent of yeast and other bacterial classifications composition, preferably, its composition of high-effective microorganism microbial inoculum of the present invention is mainly Crimson rhodospirillum (Rhodospirillumrubrum), Rhodopseudomonas palustris (Rhodopseudomonaspalustris), the unicellular bacterium of spherical red vacation (Rhodopseudomonassphaeroides), the green unicellular bacterium of red vacation (Rhodopseudomonasviridis), green sulfur bacteria, purple sulfur bacteria, the combination of one or more in purple nonsulfur bacteria.High-effective microorganism microbial inoculum is once inoculated when debugging, normal when running by the device amplification culture that spreads cultivation, and continuously or interval add to hydrolysis acidification pool, dosage is 0.1 ~ 5 ‰ (weight ratio) of the process water yield.
The advantage of composite hydrolysis acidification reactor of the present invention and technique thereof is:
(1) the high-effective microorganism microbial inoculum that the present invention adds can tolerate hazardous and noxious substances higher in sewage, and the saltiness wherein tolerated is 1 ~ 3%; Can active sludge obviously in facilitation of hydrolysis acidification pool, biomembranous hardly degraded organic substance acidication effect, COD clearance can improve more than 20%; The excess sludge generation more than 20% of hydrolysis acidification pool can be reduced.
(2) reactor shell top of the present invention is provided with point-to-point water distributor, total Water can be divided into some flows equably and be assigned to equably on each cloth water tube hose, and being delivered to the cloth water spot of reactor bottom by cloth water tube hose; This water distributor can configure quantity and cloth water spot according to practical factor adjustment such as the sizes of hydrolytic tank, convenient, flexible.Conventional art generally adopts single-point to intake or perforated pipe water distribution, is difficult to accomplish that water distribution is even, and then can cause the short stream of waterpower, forms waterpower dead band.Sewage can be dispensed to reactor bottom by arranging point-to-point water distributor and corresponding cloth water tube hose etc. by the present invention uniformly, accomplish water distribution uniformity completely, thus avoid the defect in the short stream of the uneven waterpower caused of water distribution, waterpower dead band, improve utilization rate of tank volume.
(3) reactor of the present invention adopts top water inlet, by water distributor and cloth water tube hose, the water yield is uniformly distributed to reactor bottom, sewage is again from the uniform up-flow of reactor bottom to reactor top, and finally from the effluent weir water outlet on reactor top, hydraulic flow state in reactor is upflowing, the backwater effect of ascending current can make the mud of reactor form suspended sludge layer, and then improves acidication effect.Pulling flow type can be avoided or fall that muddy water in streaming hydrolytic tank can not fully contact, the defect of hydrolysis effect difference.
(4) composite hydrolysis reactor of the present invention, refer to that reactor middle and lower part is suspended sludge layer, reactor middle and upper part is filler biological rete, hydrolysis reactor contains " compound " effects such as the biomembranous facultative microbe degraded that the Physical entrapment of active sludge in suspended sludge layer, acidication and filler biological rete adhere to and the high-effective microorganism microbial inoculum added to organic degraded, improves the decomposition rate of larger molecular organics.Traditional hydrolysis reactor generally only has the effect of active sludge or only has the biomembranous effect of double oxygen.
(5) microbiobacterial agent, point-to-point water distribution system and Activated sludge-biofilm system are organically combined in the present invention, cooperatively interact between three the common treatment effect improving sewage.
(6) reflux pump being arranged on reactor outside of the present invention, less or open when not intaking at flooding quantity, thus avoid flooding quantity little or do not intake time reactor in upflow velocity is low, mud can not form suspended layer defect.
(7) advantage of the present invention is that treatment process is simple, and can realize water distribution uniformity, strong shock resistance, hardly degraded organic substance acidication effect is good, and carbon source output speed is fast, and working cost is low, is easy to apply.
Accompanying drawing explanation
Fig. 1 is composite hydrolysis acidification apparatus structure diagrammatic cross-section;
Fig. 2 is composite hydrolysis acidification apparatus structure floor map;
Described in figure, Reference numeral is as follows:
1-sewage water inlet pipe 2-line mixer 3-spreads cultivation device
4-drug feeding pipeline 5-point-to-point water distributor 6-filler biological rete
7-cloth water spot 8-suspended sludge layer 9-cloth water tube hose
10-reflux pump 11-reflux pump water absorption tube 12-reflux pump rising pipe
13-shore pipe 14-mud discharging mouth 15-effluent weir
16-rising pipe 17-reacting cylinder body 5-1-inhalant region
5-2-water distributor effluent weir 5-3-cuts dirty net 5-4-annular exhalant region
5-5-water outlet
Embodiment
As depicted in figs. 1 and 2, a kind of composite hydrolysis acidification reactor, comprise reacting cylinder body 17, the bottom even of reacting cylinder body arranges cloth water spot 7, and the top of cloth water spot 7 is suspended sludge layer 8, is filler biological rete 6 above suspended sludge layer, the ratio of the vertical height between suspended sludge layer and filler biological rete is 1:1-1:1.5, be the exhalant region of reacting cylinder body above filler biological rete, the inwall of exhalant region is arranged the effluent weir 15 of annular, effluent weir place sets out water pipe 16.Reacting cylinder body inner top (i.e. top, exhalant region) arranges point-to-point water distributor 5, point-to-point water distributor comprises device body, in device body, center is inhalant region 5-1, inhalant region is communicated with sewage water inlet pipe 1, inhalant region surrounding is annular exhalant region 5-4, separated by water distributor effluent weir 5-2 between inhalant region and annular exhalant region, the top of annular exhalant region is closed by cutting dirty net 5-3, the bottom even of annular exhalant region sets out mouth of a river 5-5, water outlet quantity is corresponding with the cloth water spot of bottom, connected one to one by cloth water tube hose between water outlet and cloth water spot, cloth water tube hose and cloth water spot junction are hydraucone.
A set of microorganism dosing system is set outside reacting cylinder body, comprise expand equipped put 3, line mixer 2 and drug feeding pipeline 4, expand equipped expansion of putting for microbiobacterial agent to join, line mixer is located on sewage water inlet pipe, expands equipped putting and is connected by drug feeding pipeline 4 between line mixer.
Arrange a reflux pump 10 outside reacting cylinder body, loop pump water absorption tube is perforated pipe, is positioned on the inwall of the exhalant region of reacting cylinder body, and is positioned at the below of effluent weir 15, and reflux pump rising pipe 12 is positioned at below suspended sludge layer, adopts perforated pipe.
Also be provided with shore pipe 13 bottom reacting cylinder body, shore pipe 13 adopts perforated pipe, reacting cylinder body base wall is offered mud discharging mouth 14.
The technique of above-mentioned composite hydrolysis acidification reactor for treatment sewage is adopted to comprise the following steps:
(1) treatment sewage and high-effective microorganism microbial inoculum enter the point-to-point water distributor being located at reactor for hydrolysis and acidification cylindrical shell top after line mixer mixes;
(2) sewage after mixing and high-effective microorganism microbial inoculum by point-to-point water distributor and cloth water tube hose by sewage quantity uniformly distributing to reactor bottom, sewage rises from reactor bottom equably, according to entering suspended sludge layer and filler biological rete, the upflow velocity controlling sewage in reactor is 0.5-1.5m/h;
(3) be provided with zig-zag effluent weir in reactor top surrounding, the sewage after acidication evenly flows out through effluent weir;
(4) be provided with perforated sludge discharge pipe bottom reactor shell, when suspended sludge layer sludge concentration is higher, excess sludge discharged by perforated sludge discharge pipe;
(5) by the reflux pump that is arranged on reactor outside by reactor top sewage backflow to reactor bottom, thus avoid flooding quantity little or do not intake time reactor in upflow velocity is low, mud can not form suspended layer defect; Reflux pump reflux pump when normal water yield water inlet can not be opened.
(6) high-effective microorganism microbial inoculum is once inoculated when debugging, normal when running by the device amplification culture that spreads cultivation, and continuously or interval add to line mixer, dosage is 0.5 ~ 5 ‰ of the process water yield.
(7) residence time of sewage in described reactor shell is 6-24h, and the residence time of mud is 10-30d, and the sewage quantity of backflow is 0-1 with the ratio of flooding quantity.
Embodiment 1
Use process of the present invention based on the wastewater from chemical industry of production petrochemical industry step product, the water yield is 900m
3/ d, influent quality is as follows: COD
cr3500mg/L, BOD
5716mg/L, ammonia nitrogen 25mg/L, pH7.8, saltiness are 1.1%.
First this waste water evenly entered by equalizing tank and be arranged on hydrolysis acidification pool top water inlet pipe, and simultaneously the high-effective microorganism device that spreads cultivation adds to line mixer by drug feeding pipeline; Sewage mixes rear gravity flow and enters two point-to-point water distributors with high-effective microorganism microbial inoculum; High-effective microorganism microbial inoculum adopts interval to add, and within general one week, adds once, and dosage is 0.2 ‰ of the process water yield.Through point-to-point water distributor, sewage is distributed into 24 bursts of impartial water yields, and is delivered to 24 the cloth water spots be evenly laid at the bottom of pond by the cloth water tube hose of φ 50, sewage rises uniformly bottom hydrolytic tank, and upflow velocity is 1.0m/h.Successively through suspended sludge layer and filler biological rete in sewage uphill process, wherein suspended sludge layer height is 3.5m, and carrier biofilm layer height is 4m.Sewage is first through Physical entrapment and the acidication effect of suspended sludge layer, evenly hydrolytic tank is flowed out by the zig-zag effluent weir being arranged on hydrolytic tank top again after filler biological rete facultative microbe Degradation, the residence time of sewage in hydrolytic tank is 24h, after hydrolytic tank process, COD
crobvious decline, the biodegradability of sewage significantly improves, and hydrolytic tank effluent quality is COD
cr1050mg/L, BOD
5345mg/L, ammonia nitrogen 19mg/L, pH7.3, its B/C reaches 0.33, is conducive to the further process of follow-up aerobic biochemical pool.
Because the fluctuation of this construction waste water water yield is comparatively large, hydrolytic tank night at general night without water inlet or flooding velocity less.The situation low suspension mud that common hydrolytic tank is not being intake can be deposited on bottom hydrolytic tank, and the time is longer can form anaerobic state.This engineering at hydrolytic tank outer setting reflux pump by reactor top sewage backflow to reactor bottom, thus avoid mud can not form the defect of suspended layer; Reflux pump selects low lift in-line pump, and arranges dual-purpose one times, can according to the flooding quantity size adjustment backflow water yield, and maximum quantity of reflux is identical with design wastewater influent amount.Reflux pump reflux pump when normal water yield water inlet can not be opened.
The row's of being provided with perforated sludge discharge pipe bottom hydrolytic tank, when sludge concentration in hydrolytic tank is more than 8000mg/L, discharges hydrolytic tank by excess sludge.In hydrolytic tank, sludge retention time is 20 ~ 25d.
Embodiment 2
Use treatment of dyeing and printing of the present invention, the water yield is 2200m
3/ d, influent quality is as follows: COD
cr1325mg/L, BOD
5291mg/L, ammonia nitrogen 7mg/L, colourity 512 times, pH9.2.
This waste water first enter be arranged on hydrolytic tank top simultaneously the high-effective microorganism device that spreads cultivation add to line mixer by chemical feed pipe way; Sewage mixes rear gravity flow and enters four point-to-point water distributors with high-effective microorganism microbial inoculum; High-effective microorganism microbial inoculum adopts interval to add, and within general one week, adds once, and dosage is 0.1 ‰ of the process water yield.Through point-to-point water distributor, sewage is distributed into 24 bursts of impartial water yields, and is delivered to 24 the cloth water spots be evenly laid at the bottom of pond by the cloth water tube hose of φ 50, sewage rises uniformly bottom hydrolytic tank, and upflow velocity is 1.2m/h.Successively through suspended sludge layer and filler biological rete in sewage uphill process, wherein suspended sludge layer height is 4m, and carrier biofilm layer height is 4m.Sewage is first through Physical entrapment and the acidication effect of suspended sludge layer, evenly hydrolytic tank is flowed out by the zig-zag effluent weir being arranged on hydrolytic tank top again after filler biological rete facultative microbe Degradation, the residence time of sewage in hydrolytic tank is 14h, after hydrolytic tank process, COD
crobvious decline, the biodegradability of sewage significantly improves, and hydrolytic tank effluent quality is COD
cr535mg/L, BOD
5172mg/L, ammonia nitrogen 5mg/L, pH7.9, colourity 128 times, its B/C reaches 0.32, is conducive to the further process of follow-up aerobic biochemical pool.
Because the fluctuation of this construction waste water water yield is comparatively large, hydrolytic tank night at general night without water inlet or flooding velocity less.The situation low suspension mud that common hydrolytic tank is not being intake can be deposited on bottom hydrolytic tank, and the time is longer can form anaerobic state.This engineering at hydrolytic tank outer setting reflux pump by reactor top sewage backflow to reactor bottom, thus avoid mud can not form the defect of suspended layer; Reflux pump selects low lift in-line pump, and arranges four-function one times, can according to the flooding quantity size adjustment backflow water yield, and maximum quantity of reflux is identical with design wastewater influent amount.Reflux pump reflux pump when normal water yield water inlet can not be opened.
The row's of being provided with perforated sludge discharge pipe bottom hydrolytic tank, when sludge concentration in hydrolytic tank is more than 8000mg/L, discharges hydrolytic tank by excess sludge.Sludge retention time in hydrolytic tank is 15 ~ 20d.
Claims (10)
1. a composite hydrolysis acidification reactor, is characterized in that, comprising:
Reacting cylinder body, set gradually sludge media layer, filler biological rete and exhalant region in this reacting cylinder body from the bottom to top, exhalant region sets out mill weir;
Water distribution system, this water distribution system comprises at least one the point-to-point water distributor being positioned at reacting cylinder body inner top and the some cloth water spots being uniformly distributed in reacting cylinder body inner bottom part, and each cloth water spot is all hose connection to point-to-point water distributor by corresponding water distribution;
Microorganism dosing system, is positioned at reacting cylinder body outer and be connected with described point-to-point water distributor;
Sewage water inlet pipe, is connected to point-to-point water distributor;
Shore pipe, is arranged at the bottom in reacting cylinder body.
2. composite hydrolysis acidification reactor according to claim 1, it is characterized in that, described point-to-point water distributor comprises: the device body be communicated with sewage water inlet pipe; And the water outlet be uniformly distributed in bottom device body, water outlet connects cloth water tube hose.
3. composite hydrolysis acidification reactor according to claim 2, it is characterized in that, described device body is provided with inhalant region, inhalant region arranged outside annular exhalant region, and top, annular exhalant region is closed by cutting dirty net; Described sewage water inlet pipe is connected to inhalant region, described water outlet evenly arrange with exhalant region bottom.
4. composite hydrolysis acidification reactor according to claim 1, it is characterized in that, described microorganism dosing system comprises:
Expansion for microorganism culturing is equipped puts;
Be arranged on the line mixer on inlet channel;
Connect to expand to be equipped with and put the drug feeding pipeline with line mixer.
5. composite hydrolysis acidification reactor according to claim 1, it is characterized in that, described reacting cylinder body is also provided with reflux pump outward, and the water absorption tube of this reflux pump is arranged in exhalant region, and the rising pipe of reflux pump is arranged on the bottom in reacting cylinder body.
6. composite hydrolysis acidification reactor according to claim 1, it is characterized in that, the ratio of the vertical height between described suspended sludge layer and filler biological rete is 1:1-1:1.5.
7. a composite hydrolysis acidification technique, is characterized in that, comprises the steps:
Microbiobacterial agent mixes in the point-to-point water distributor in rear feeding reactor with treatment sewage, sewage is evenly laid in the bottom of reactor by point-to-point water distributor by cloth water tube hose and the equally distributed cloth water spot of reactor bottom, sewage rises, according to entering suspended sludge layer and filler biological rete from reactor bottom equably; The effluent weir of sewage after acidication through exhalant region, reactor top evenly flows out; When suspended sludge layer sludge concentration exceedes set(ting)value, excess sludge is discharged by shore pipe.
8. composite hydrolysis acidification technique according to claim 7, it is characterized in that, when treatment sewage flooding quantity is not enough to the sludge suspension making suspended sludge layer, by the recycle pump of reactor outside by the sewage backflow of exhalant region to reactor bottom, backflow sewage quantity is 0-1:1 with the ratio for the treatment of sewage flooding quantity.
9. composite hydrolysis acidification technique according to claim 7, it is characterized in that, in reactor, sewage upflow velocity is 0.5-1.5m/h.
10. composite hydrolysis acidification technique according to claim 7, it is characterized in that, the residence time of sewage in reactor is 6-24h, and sludge retention time is 10-30d.
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|---|---|---|---|
| CN201510465364.1A CN105174487B (en) | 2015-07-31 | A kind of composite hydrolysis acidification reactor and technique |
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|---|---|---|---|
| CN201510465364.1A CN105174487B (en) | 2015-07-31 | A kind of composite hydrolysis acidification reactor and technique |
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| CN105174487A true CN105174487A (en) | 2015-12-23 |
| CN105174487B CN105174487B (en) | 2018-06-01 |
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| CN108275768A (en) * | 2017-01-06 | 2018-07-13 | 中国石化工程建设有限公司 | Hydrolysis acidification reaction tank/device and hydrolysis acidification technique |
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| CN114180721A (en) * | 2021-12-23 | 2022-03-15 | 湖南子宏生态科技股份有限公司 | Breeding wastewater and sewage treatment device and technology |
| CN115417499A (en) * | 2022-09-20 | 2022-12-02 | 上海泓济环保科技股份有限公司 | Hydrolysis acidification reactor and working method thereof |
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| CN108275768A (en) * | 2017-01-06 | 2018-07-13 | 中国石化工程建设有限公司 | Hydrolysis acidification reaction tank/device and hydrolysis acidification technique |
| CN107098464A (en) * | 2017-03-27 | 2017-08-29 | 山东大学 | Industrial wastewater biochemistry pretreatment running gear and its application method |
| CN109650537A (en) * | 2019-01-24 | 2019-04-19 | 浙江省环境保护科学设计研究院 | A kind of hydrolysis device and technique of multiple spot up-flow water inlet water distribution |
| CN109650537B (en) * | 2019-01-24 | 2023-08-18 | 浙江省环境保护科学设计研究院 | Multi-point up-flow type water inlet and distribution hydrolysis device and process |
| CN114180721A (en) * | 2021-12-23 | 2022-03-15 | 湖南子宏生态科技股份有限公司 | Breeding wastewater and sewage treatment device and technology |
| CN114180721B (en) * | 2021-12-23 | 2023-10-31 | 湖南子宏生态科技股份有限公司 | Cultivation wastewater and sewage treatment device and technology |
| CN115417499A (en) * | 2022-09-20 | 2022-12-02 | 上海泓济环保科技股份有限公司 | Hydrolysis acidification reactor and working method thereof |
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