CN108773902A - A kind of integral life sewage biochemical treatment system - Google Patents

Abstract

The present invention relates to a kind of integral life sewage biochemical treatment systems, including：Internal layer tank body is arranged in outer layer tank body, and the first chamber for receiving sanitary sewage is formed between internal layer tank body lateral wall and outer layer tank body madial wall, and internal layer tank body is second chamber, and first chamber is connected to second chamber bottom；Sludge pump is connected to second chamber and the sludge for being deposited on internal layer tank base is delivered in first chamber；Aerator is connected to first chamber and second chamber respectively, and so that first chamber and second chamber is respectively formed anaerobic environment and aerobic environment by adjusting aeration quantity；Through the invention, sludge pump pumps the partial sludge that second chamber precipitates to first chamber, required microorganism is provided for the sewage disposal in first chamber, returned sludge, raw water and the mixed liquor of reflux are adequately stirred in first chamber under the action of flow, and effective mixing of sludge and water in first chamber is realized without increasing electric drive blender just.

Description

A kind of integral life sewage biochemical treatment system

Technical field

The present invention relates to sewage treatment field more particularly to a kind of integral life sewage biochemical treatment systems.

Background technology

Currently, existing sanitary sewage integrated processing technique mainly has anaerobic/anoxic aerobic method (Anaerobic-Anoxic- Oxic, abbreviation AAO technique), anaerobic-aerobic Process (Anoxic Oxic, abbreviation AO technique), anaerobic-aerobic technique combination film life Object reactor process (Membrane Bio-Reactor, abbreviation MBR technique) and multistage anaerobic aerobic process；In the prior art Each technique unit be independent cuboid either cylinder equipment, the excessively certain pre-processing device of sanitary sewage well is laggard Enter the substances such as organic matter, nitrogen, the phosphorus in biochemical system removal sewage, water outlet water outlet after sedimentation basin precipitates reaches discharge standard Outer row afterwards；Existing small-sized sanitary sewage integrated treatment facility (processing capacity can reach 60 ton days) is small, without suitable Mixing plant, therefore existing anaerobism, anoxic treatment unit sludge are easy to deposit to pond body or the bottom of box forms anaerobic sludge, Anaerobic sludge cannot be cleared up in time, and final sludge is dead, and process system is not normally functioning, needs frequently to debug, cannot Reach expected treatment effect.

Invention content

The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of integral life sewage life Change processing system, at least one to solve the above technical problems.

The technical solution that the present invention solves above-mentioned technical problem is as follows, a kind of integral life sewage biochemical treatment system, Including：Outer layer tank body, internal layer tank body, sludge pump, aerator, mixed-liquor return pipe and mud return line；Internal layer tank body is arranged In outer layer tank body, the first chamber for receiving sanitary sewage is provided between internal layer tank body lateral wall and outer layer tank body madial wall Room offers second chamber in the middle part of internal layer tank body, and first chamber is connected to second chamber bottom；Sludge pump connects with second chamber It is logical and the sludge for being deposited on internal layer tank base is delivered in first chamber aerator respectively with the by mud return line One chamber is connected to second chamber, and so that first chamber and second chamber is respectively formed anaerobic environment by adjusting aeration quantity and become reconciled Oxygen environment；One end of mixed-liquor return pipe is connected to the top of second chamber, and the other end is connected to the top of first chamber, is used It is directed into first chamber in by the mixed-liquor return at the top of second chamber.

In the above-mentioned technical solutions, the mud discharge that sludge pump is inputted to first chamber is the raw water for entering biochemical device The 0~300% of flow, i.e., return sludge ratio is between 0-300%；Meanwhile between return current ratio of the mixed liquid is 0~300%；It needs Illustrate to be return current ratio of the mixed liquid and return sludge ratio sum of the two can be referred to as total reflux ratio, return sludge ratio goes out with secondary settling tank The mixed liquid concentration that the returned sludge concentration come and reaction tank control is related, and total reflux ratio is related with Denitrification rate, it is determined that dirty After mud reflux ratio and Denitrification rate, return current ratio of the mixed liquid just can determine that, wherein reflux ratio is the ratio of return flow and flow of inlet water Value.

Specifically, integral life sewage biochemical treatment system is the core equipment of integrated sewage disposal technology, every Equipment maximum processing capability is 60t/d；The integrated biochemical treatment of series and parallel can be adjusted according to actual demand when specifically used The quantity of device increases or reduces the treatment scale of sewage plant；Can also put into operation quantity when operation according to actual demand, have Effect reduces energy consumption；Equipment can be made to connect by adjusting device, the case where to cope with influent quality long-term degradation, ensure to reach Expected treatment effect.

The beneficial effects of the invention are as follows：A part of sludge precipitated in second chamber is pumped to by using sludge pump In one chamber, necessary microorganism is provided for the sewage disposal process in first chamber, wherein return sludge ratio is 0- Between 300%；By being connected to for first chamber and second chamber bottom, the sludge positioned at bottom is realized in first chamber and The indoor loopy moving of two chambers overcomes existing anaerobism, anoxic treatment unit sludge is easy to deposit to pond body or the bottom of box Formation anaerobic sludge, anaerobic sludge cannot be cleared up in time, and final sludge is dead, process system is not normally functioning, equipment needs A series of problems, such as frequently debugging and expected treatment effect cannot be reached；The is realized by the way that outer layer aerator is arranged One chamber becomes anaerobic pond, and second chamber is realized as aerobic tank, to realize anaerobism by the way that internal layer aerator is arranged Aerobic process method (Anoxic Oxic, abbreviation AO technique) carries out sewage disposal；The integral life sewage biochemical treatment of the present invention System includes two technique units of outer layer tank body and internal layer tank body, and device structure is compact, small, can industrialized production；With it is existing Some integrated sewage treating apparatus are compared, and 20% can be saved by being invested under same size；Realizing can be by adjusting parallel connection Integral life sewage biochemical treatment system quantity increases or reduces the treatment scale of sewage plant, and when operation can also be according to reality Border demand puts into operation quantity, effectively reduces energy consumption, equipment can be made to connect by adjusting device, long to cope with influent quality The case where phase deteriorates, guarantee reach expected treatment effect；It can without installing additional agitating device in addition, also achieving So that sludge and sewage is reached preferable mixed effect, can effectively reduce system energy consumption, and ensures good wastewater treatment efficiency； By change water distribution manner and box shape for compared with the prior art, solve in the case where lacking mixing plant, In anaerobic pond and anoxic pond the problem of sludge settling, and babinet is substantially not present the Dead Core Problems of flow, and babinet has obtained most That changes greatly efficiently uses.

Based on the above technical solution, the present invention can also be improved as follows.

Further, aerator includes being arranged in the outer layer aerator of first chamber bottom and setting in second chamber The internal layer aerator of bottom, outer layer aerator and internal layer aerator are connected by pipeline with air blower.

Specifically, internal layer aerator and outer layer aerator refer to micro-hole aerator or other aerator peace The aerator formed on aeration tube, wherein aeration tube generally in the bottom for being covered with internal layer tank, forms and is similar to cobweb Structure.

Using the advantageous effect of above-mentioned further scheme：The dissolved oxygen realized respectively in first chamber and second chamber is dense The adjusting of degree.

Further, it is provided on the pipeline between outer layer aerator and air blower for maintaining dissolved oxygen in first chamber Concentration is provided on the pipeline between internal layer aerator and air blower in the first regulating valve of first threshold for maintaining second Second regulating valve of the dissolved oxygen concentration in second threshold in chamber.

Specifically, being provided on pipeline between outer layer aerator and air blower for maintaining dissolved oxygen in first chamber First regulating valve of the concentration between 0.4mg/L-0.6mg/L is provided on the pipeline between internal layer aerator and air blower For maintaining second regulating valve of the dissolved oxygen concentration between 2mg/L-4mg/L in second chamber.

Using the advantageous effect of above-mentioned further scheme：It is effectively realized first chamber by the way that the first regulating valve is arranged Become anoxic pond, effectively realized by the second regulating valve of setting becomes aerobic tank by second chamber, works as place in the prior art When reason amount is smaller, anoxic pond is smaller, is not suitable for putting diving mixer, rectangular pool capacity is also easy to produce sludge settling, forms anaerobism Sludge is ultimately forming dead mud, on the one hand the present invention has adjusted satisfaction dirt by the setting of the first regulating valve and the second regulating valve On the other hand the oxygen content concentration of water treatment technology demand effectively provides the sludge in first chamber and second chamber and disturbs Momentum avoids dead mud phenomenon and occurs, while ensure that the uniformity of sludge concentration in aerobic tank and anaerobic pond, improves reaction Efficiency.

Further, further include for by sewage import first chamber in water inlet pipe and for after second chamber is handled mix It closes liquid to be delivered to next sewage treatment unit respectively and be back to the outlet pipe of first chamber, the outlet of water inlet pipe setting is the The upper end of one chamber and in communication, the entrance of outlet pipe are arranged in the upper end of second chamber and in communication.

Using the advantageous effect of above-mentioned further scheme：By being arranged water inlet pipe in the upper end of first chamber, realize Sanitary sewage is rapidly injected, and contributes to the mixing of sludge in first chamber；By being arranged outlet pipe in second chamber Open end helps to improve effective discharge of supernatant.

Further, the water outlet of sludge pump is connected with mud return line, and the other end of mud return line is connected to water inlet pipe.

Using the advantageous effect of above-mentioned further scheme：By the way that mud return line is arranged, the efficiency of sludge reflux is accelerated.

Further, which is characterized in that downflow weir is provided on the open end madial wall of second chamber, downflow weir upper end is open And be connected to second chamber, outlet pipe is connected to downflow weir.

Using the advantageous effect of above-mentioned further scheme：By the way that downflow weir is arranged and is connected to outlet pipe with downflow weir, It realizes the sewage after treatment and purification to be discharged from upper layer, the concentration that the sewage of discharge contains sludge is relatively low.

Further, further include the outer layer water distributor for being circumferentially positioned at internal layer tank body peripheral side, outer layer water distributor is positioned at first The upper end of chamber, offers multiple osculums on the tube wall on outer layer water distributor face first chamber direction, outer layer water distributor and Water inlet pipe is connected to.

Using the advantageous effect of above-mentioned further scheme：By the way that outer layer water distributor is arranged and by outer layer water distributor and water inlet pipe Connection, improves the uniformity that water is entered via regulating reservoir in first chamber, avoids entire caused by liquid concentration is discharged into The generation of the unstable phenomenon of device, while accelerating the speed of sewage disposal；In addition, also improve sludge and via regulating reservoir into The mixture homogeneity of the water entered avoids the generation of line clogging phenomenon.

Further, it offers in the bottom side of the wall of internal layer tank body and is connected to the multiple of second chamber for being connected to first chamber Mouthful, multiple communication ports around internal layer tank body axis uniform array on the side wall of internal layer tank body.

Using the advantageous effect of above-mentioned further scheme：By by multiple communication port uniform arrays internal layer tank body side wall On, circulation efficiency of the sludge between first chamber and second chamber is improved, the treatment effeciency of sanitary sewage is improved, is reduced The formation at sludge accumulation dead angle.

Further, one end of mixed-liquor return pipe is connected to outlet pipe, and the other end and water inlet pipe of mixed-liquor return pipe connect It is logical, mixed liquor circulating pump is provided on mixed-liquor return pipe.

Using the advantageous effect of above-mentioned further scheme：By the way that mixed-liquor return pipe is arranged, realizes and outlet pipe is discharged A small amount of added in first chamber containing miscellaneous water handle again, by circular treatment again, it is pure to improve that treated Degree, improves water quality, and when the sedimentation basin of outlet pipe connection is not enough to accommodate mixing water, mixed liquor can be in tank body at cycle Reason, reduces the generation of the overflow phenomena of device, improves the safety of entire sewage disposal system, realize sewage disposal Self feed back, by the way that circulating pump is arranged, to be returned to containing miscellaneous lower mixing water to providing in the first cavity via outlet pipe Driving force, improves circulation cycle efficiency.

Further, the quantity of mud return line is multiple, and multiple mud return lines are connected to sludge pump, and multiple sludge return Flow tube around outer layer tank body axis circumferential direction uniform array on the side wall of outer layer tank body open end, mud return line goes out liquid direction It is tangent with outer layer tank body lateral wall.

Using the advantageous effect of above-mentioned further scheme：By the way that mud return line is set as multiple, improve via dirt Dredge pump returns to the efficiency of sludge hydrate in first chamber, while setting mud return line to it and going out liquid direction and outer layer tank body It is tangent, the impact that sludge stream enters in first chamber is slowed down, while the circumferential direction that can also be formed in first chamber circulates, both The expulsion efficiency for improving sludge hydrate increases turbulent water amount in first chamber again, anti-to improve sanitary sewage Answer treatment effeciency.

Further, further include biological rope filler, more biological rope fillers are both provided in first chamber and second chamber.

Using the advantageous effect of above-mentioned further scheme：It is filled out by being both provided with biological rope in first chamber and second chamber Material, by the way that sludge to be attached on biological rope filler, increases the contact area of water and sludge, improves the effect of sewage disposal Rate.

Further, second chamber inside bottom has the internal layer tank bottom of conical wall, the downside of internal layer tank bottom to lower recess It is provided with sludge discharge pipe at tip, regulating switch valve is provided on sludge discharge pipe.

Using the advantageous effect of above-mentioned further scheme：By setting in conical wall the bottom of second chamber to Layer tank bottom, high by periphery and center bottom structure realize biological sludge in intermediate aggregation, pass through sludge discharge pipe timing Discharge, while according to process requirements and field condition by the sludge reflux to first chamber of a part, that is, from aerobic tank It is back in anoxic pond, remainder is entered by sludge discharge pipe in sludge-tank.

Description of the drawings

Fig. 1 is a kind of front view of integral life sewage biochemical treatment system of the present invention；

Fig. 2 is a kind of vertical view of integral life sewage biochemical treatment system shown in FIG. 1；

Fig. 3 is a kind of integral life sewage biochemical treatment system front view structure in other embodiments of the present invention Figure.

In attached drawing, parts list represented by the reference numerals are as follows：

1, water inlet pipe, 2, outer layer water distributor, 3, communication port, 4, outer layer aerator, 5, mixed-liquor return pipe, 6, sludge returns Flow tube, 7, internal layer tank bottom, 8, sludge pump, 9, mixed liquor circulating pump, 10, downflow weir, 11, outlet pipe, 12, internal layer aerator, 13, the first regulating valve, 14, biological rope filler, the 15, second regulating valve, 16, second chamber, 17, outer layer tank body, the 18, first chamber Room, 19, internal layer tank body.

Specific implementation mode

The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in the present embodiment, including：Outer layer tank Body 17, internal layer tank body 19, sludge pump 8, aerator, mixed-liquor return pipe 5 and mud return line 6；The setting of internal layer tank body 19 exists In outer layer tank body 17, it is provided between 17 madial wall of 19 lateral wall of internal layer tank body and outer layer tank body for receiving sanitary sewage first The middle part of chamber 18, internal layer tank body 19 offers second chamber 16, and first chamber 18 is connected to 16 bottom of second chamber；Sludge pump 8 entrance is connected to by pipeline with 16 bottom of second chamber, and sludge pump 8 is connected to second chamber 16 and will be deposited on internal layer tank body The sludge of 19 bottoms is delivered to by mud return line 6 in first chamber 18, until the sludge content deposited in first chamber 18 Reach predetermined value；Aerator is connected to first chamber 18 and second chamber 16 respectively, and makes the first chamber by adjusting aeration quantity Room 18 and second chamber 16 are respectively formed anaerobic environment and aerobic environment；One end of mixed-liquor return pipe 6 and second chamber 16 Top is connected to, and the other end is connected to the top of first chamber 18, for importing the mixed-liquor return at 16 top of second chamber To first chamber 18.

In the above-mentioned technical solutions, return sludge ratio is between 0-300%, meanwhile, return current ratio of the mixed liquid is 0~300% Between；It should be noted that return current ratio of the mixed liquid and return sludge ratio sum of the two can be referred to as total reflux ratio, return sludge ratio Related with the mixed liquid concentration for returned sludge concentration and the reaction tank control that secondary settling tank comes out, total reflux ratio has with Denitrification rate Close, it is determined that after return sludge ratio and Denitrification rate, just can determine that return current ratio of the mixed liquid, wherein reflux ratio be return flow and into The ratio of water flow；Wherein, sludge pump can be used variable frequency pump or install flow control valve on sludge return pipe and realizes, mix The circulating pump for closing liquid reflux equally may be used variable frequency pump or install flow control valve on mixed-liquor return pipeline and realizes.

Specifically, internal layer tank body 19 by welding, rivet or be bolted and be fixed in outer layer tank body 17, the secondth chamber Body can be cylindrical or any one prismatic, it is preferred that first chamber 18 is cylinder, and second chamber 16 is for section The cylindrical chamber of circular ring shape；The aeration tube in the prior art that internal layer aerator 12 and outer layer aerator 4 refer to, also known as compresses Air aeration, principle is to be transported to air in the aerator for being located at bottom of pond by gas pipeline using air blower, with gas Bubble form disperse escapes, and oxygen is dissolved in water in gas-liquid interface；Integral life sewage biochemical treatment system is integrated dirty The core equipment of water technology, every equipment maximum processing capability are 60t/d；It can be according to actual demand tune when specifically used The quantity of the integrated biochemical treatment apparatus of whole series and parallel increases or reduces the treatment scale of sewage plant；It can also root when operation It puts into operation quantity according to actual demand, effectively reduces energy consumption；Equipment can be made to connect by adjusting device, to cope with water inlet water The case where matter long-term degradation, guarantee reach expected treatment effect.

The advantageous effect of the present embodiment is：A part of sludge precipitated in second chamber 16 is taken out by using sludge pump 8 It send to first chamber 18, provides necessary microorganism for the sewage disposal process in first chamber 18, wherein sludge returns Ratio is flowed between 0-300%；By being connected to for first chamber 18 and 16 bottom of second chamber, realizes the sludge positioned at bottom and exist Loopy moving in first chamber 18 and second chamber 16 overcomes existing anaerobism, anoxic treatment unit sludge is easy deposition To pond body or the bottom of box form anaerobic sludge, anaerobic sludge cannot be cleared up in time, final sludge death, process system cannot A series of problems, such as normal operation, equipment need frequent debugging and cannot reach expected treatment effect；By the way that outer layer is arranged Aerator 4 realize first chamber 18 become anaerobic pond, by be arranged internal layer aerator 12 realize second chamber 16 at For aerobic tank, sewage disposal is carried out to realize anaerobic-aerobic Process (Anoxic Oxic, abbreviation AO technique)；The present invention Integral life sewage biochemical treatment system include 19 two technique units of outer layer tank body 17 and internal layer tank body, device structure is tight It gathers, is small, it can industrialized production；Being invested compared with existing integrated sewage treating apparatus, under same size can save 20%；Sewage plant can be increased or reduce by adjusting integral life sewage biochemical treatment system quantity in parallel by realizing Treatment scale, when operation can also put into operation quantity according to actual demand, effectively reduce energy consumption, can be by adjusting dress Setting makes equipment connect, and the case where to cope with influent quality long-term degradation, guarantee reaches expected treatment effect；In addition, also realizing Not having to install additional agitating device can make sludge and sewage reach preferable mixed effect, can effectively reduce system Energy consumption, and ensure good wastewater treatment efficiency；By changing water distribution manner and box shape for compared with the prior art, It solves in the case where lacking mixing plant, in anaerobic pond and anoxic pond the problem of sludge settling, and babinet is not deposited substantially In the Dead Core Problems of flow, babinet has obtained maximumlly efficiently using.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Aerator include be arranged 18 bottom of first chamber outer layer aerator 4 and internal layer in 16 bottom of second chamber is set Aerator 12, outer layer aerator 4 and internal layer aerator 12 are connected by pipeline with air blower.

Specifically, internal layer aerator 12 and outer layer aerator 4 refer to micro-hole aerator or other aeration Device is mounted on the aerator formed on aeration tube, wherein aeration tube generally in the bottom for being covered with internal layer tank, forms and is similar to spider The structure of spider web.

Using the advantageous effect of above-described embodiment：The dissolved oxygen realized respectively in first chamber 18 and second chamber 16 is dense The adjusting of degree.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Further, it is provided on the pipeline between outer layer aerator 4 and air blower for maintaining dissolved oxygen concentration in first chamber 18 It is provided in the first regulating valve 13 of first threshold, the pipeline between internal layer aerator 12 and air blower for maintaining second Second regulating valve 15 of the dissolved oxygen concentration in second threshold in chamber 16.

In the above-described embodiments, it is provided on the pipeline between outer layer aerator 4 and air blower for maintaining the first chamber First regulating valve 13 of the dissolved oxygen concentration between 0.4mg/L-0.6mg/L in room 18, internal layer aerator 12 and air blower it Between pipeline on be provided with for maintaining second regulating valve of the dissolved oxygen concentration between 2mg/L-4mg/L in second chamber 16 15。

Specifically, mechanical ball valve can be used in the first regulating valve 13 and the second regulating valve 15, electromagnetic gas can also be used Regulating valve has higher the degree of automation when using electromagnetic gas regulating valve.

Using the advantageous effect of above-described embodiment：It is effectively realized first chamber 18 by the way that the first regulating valve 13 is arranged Become anoxic pond, effectively realized by the second regulating valve of setting 15 becomes aerobic tank by second chamber 16, in the prior art When treating capacity is smaller, anoxic pond is smaller, is not suitable for putting diving mixer, and rectangular pool capacity is also easy to produce sludge settling, is formed Anaerobic sludge is ultimately forming dead mud, on the one hand the present invention is adjusted by the setting of the first regulating valve 13 and the second regulating valve 15 Meet the oxygen content concentration of sewage treatment process demand, on the other hand effectively in first chamber 18 and second chamber 16 Sludge provides disturbance quantity, avoids dead mud phenomenon and occurs, while ensure that the uniform of sludge concentration in aerobic tank and anaerobic pond Property, improve reaction efficiency.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Further include for sewage to be imported to water inlet pipe 1 in first chamber 18 and for distinguishing treated the mixed liquor of second chamber 16 It is delivered to next sewage treatment unit and is back to the outlet pipe 11 of first chamber 18, the outlet of water inlet pipe 1 is arranged first The upper end of chamber 18 and in communication, the entrance of outlet pipe 11 are arranged in the upper end of second chamber 16 and in communication.

Using the advantageous effect of above-described embodiment：By being arranged water inlet pipe 1 in the upper end of first chamber 18, life is realized Sewage living is rapidly injected, and contributes to the mixing of sludge in first chamber 18；By being arranged outlet pipe 11 in second chamber 16 open end helps to improve effective discharge of supernatant.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, The water outlet of sludge pump is connected with mud return line 6, and the other end of mud return line 6 is connected to water inlet pipe 1.

Using the advantageous effect of above-described embodiment：By the way that mud return line 6 is arranged, the efficiency of sludge reflux is accelerated.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, It is characterized in that, be provided with downflow weir 10 on the open end madial wall of second chamber 16,10 upper end of downflow weir is open and with second Chamber 16 is connected to, and outlet pipe 11 is connected to downflow weir 10.

Specifically, downflow weir 10 refers to being fixed with doughnut-shaped steel plate point by the open end madial wall weldering in second chamber 16 It is separated out the annular compartment for the upper end opening being isolated with second chamber 16, it is most upper when the water level in second chamber 16 gradually rises The water of layer overflows in downflow weir 10, thus the height of 10 madial wall of downflow weir will be less than the height of outer layer tank body 17.

Using the advantageous effect of above-described embodiment：By downflow weir 10 is set and by outlet pipe 11 and downflow weir 10 even It is logical, it realizes the sewage after treatment and purification and is discharged from upper layer, the concentration that the sewage of discharge contains sludge is relatively low.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Further include the outer layer water distributor 2 for being circumferentially positioned at 19 peripheral side of internal layer tank body, outer layer water distributor 2 is located at the upper of first chamber 18 It holds, multiple osculums, 2 He of outer layer water distributor is offered on the tube wall in 2 face first chamber of outer layer water distributor, 18 bottom direction Water inlet pipe 1 is connected to.

Specifically, outer layer water distributor 2 is ring pipe made of one whole round stainless steel tube or plastic tube bending.

Using the advantageous effect of above-described embodiment：By the way that outer layer water distributor 2 is arranged and by outer layer water distributor 2 and water inlet pipe 1 Connection, improves the uniformity that water is entered via regulating reservoir in first chamber 18, avoids whole caused by liquid concentration is discharged into The generation of the unstable phenomenon of a device, while accelerating the speed of sewage disposal；In addition, also improving sludge and via regulating reservoir The mixture homogeneity of the water of entrance avoids the generation of line clogging phenomenon.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Multiple communication ports 3 for being connected to first chamber 18 and second chamber 16 are offered in the bottom side of the wall of internal layer tank body 19, it is multiple Communication port 3 around internal layer tank body 19 axis uniform array on the side wall of internal layer tank body 19.

Specifically, the shape of intercommunicating pore is round, ellipse either polygon, it is connected in a kind of preferred embodiment For Kong Weicong first chambers 18 towards the through-hole of 16 gradual necking of second chamber, such benefit is that liquid flow velocity gradually adds Soon, the efficiency of wastewater treatment in second chamber 16 is helped to improve.

Using the advantageous effect of above-described embodiment：By by 3 uniform array of multiple communication ports internal layer tank body 19 side wall On, circulation efficiency of the sludge between first chamber 18 and second chamber 16 is improved, the treatment effeciency of sanitary sewage is improved, Reduce the formation at sludge accumulation dead angle.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, One end of mixed-liquor return pipe 5 is connected to outlet pipe 11, and the other end of mixed-liquor return pipe 5 is connected to water inlet pipe 1, and mixed liquor returns Mixed liquor circulating pump 9 is provided in flow tube 5.

Specifically, mixed liquor circulating pump 9 is water pump in the prior art, the corrosion-resistant and strong pump housing of durability against pollution is selected.

Using the advantageous effect of above-described embodiment：By the way that mixed-liquor return pipe 5 is arranged, realizes and outlet pipe 11 is discharged It adds in first chamber 18 containing miscellaneous water and handles again on a small quantity, by circular treatment again, it is pure to improve that treated Degree, improves water quality, and when the sedimentation basin that outlet pipe 11 connects is not enough to accommodate mixing water, mixed liquor can recycle in tank body Processing, reduces the generation of the overflow phenomena of device, improves the safety of entire sewage disposal system, realize sewage disposal Self feed back；It is returning to first containing miscellaneous lower mixing water via outlet pipe 11 by the way that mixed liquor circulating pump 9 is arranged Driving force is provided in cavity, improves circulation cycle efficiency.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, The quantity of mud return line 6 is multiple, and multiple mud return lines 6 are connected to outlet pipe 11, and multiple mud return lines 6 are around outer layer For the axis circumferential direction uniform array of tank body 17 on the side wall of 17 open end of outer layer tank body, mud return line 6 goes out liquid direction and outer Layer 17 lateral wall of tank body is tangent.

Using the advantageous effect of above-described embodiment：By the way that mud return line 6 is set as multiple, improve via sludge pump 8 return to the efficiency of sludge hydrate in first chamber 18, while setting mud return line 6 to it and going out liquid direction and outer layer tank body 17 is tangent, slows down the impact that sludge stream enters in first chamber 18, while can also form the circumferential cycle in first chamber 18 Flowing, had not only improved the expulsion efficiency of sludge hydrate but also had increased the turbulent water amount in first chamber 18, to improve Sanitary sewage reaction treatment efficiency.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, Further include biological rope filler 14, more biological rope fillers 14 are both provided in first chamber 18 and second chamber 16.

Specifically, biological rope filler 14 is referred in a kind of immersion mounted model bio-carrier, waste water fluid stream and life Object rope, which is in contact, to be gradually formed biomembrane that anaerobism-from inside to outside and oxygen-aerobic microbiological formed on biological rope (water body is in Aerobic state), with the gradual increase of biomembrane, internal anaerobic organism film aging falls off, and follows this back and forth, makes the pollution in waste water It is removed under anaerobism of the object in biomembrane and oxygen, aerobic microbiological effect.

Using the advantageous effect of above-described embodiment：It is filled out by being both provided with biological rope in first chamber 18 and second chamber 16 Material 14, by the way that sludge to be attached on biological rope filler 14, increases the contact area of water and sludge, improves sewage disposal Efficiency.

As depicted in figs. 1 and 2, a kind of integral life sewage biochemical treatment system in some optional embodiments, 16 inside bottom of second chamber has the internal layer tank bottom 7 of conical wall to lower recess, is provided at the downside tip of internal layer tank bottom 7 Sludge discharge pipe is provided with regulating switch valve on sludge discharge pipe.

Using the advantageous effect of above-described embodiment：By the internal layer for setting the bottom of second chamber 16 to conical wall Tank bottom 7, high by periphery and center bottom structure realize biological sludge in intermediate aggregation, pass through sludge discharge pipe timing Discharge, while according to process requirements and field condition by the sludge reflux to first chamber 18 of a part, that is, from aerobic Pond is back in anoxic pond, and remainder is entered by sludge discharge pipe in sludge-tank.

The entrance of a kind of integral life sewage biochemical treatment system in some optional embodiments, water inlet pipe 1 connects It is connected to regulating reservoir, the sewage for needing to purify is provided for being integrated metaplasia work biochemical wastewater treatment system；The outlet of outlet pipe 11 It is connected with sedimentation basin, for treated that mixing water is further processed only via integral life sewage biochemical treatment system Change.

In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ", " specific example " or The description of " some examples " etc. means that specific method, device or feature described in conjunction with this embodiment or example are contained in this hair In bright at least one embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to Identical embodiment or example.Moreover, specific features, method, apparatus or the feature of description can be in any one or more realities It applies and can be combined in any suitable manner in example or example.In addition, without conflicting with each other, those skilled in the art can incite somebody to action The feature of different embodiments or examples and different embodiments or examples described in this specification is combined.

The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of integral life sewage biochemical treatment system, which is characterized in that including：Outer layer tank body (17), internal layer tank body (19), sludge pump (8), aerator, mixed-liquor return pipe (5) and mud return line (6)；

Internal layer tank body (19) setting is in the outer layer tank body (17), internal layer tank body (19) lateral wall and the outer layer The first chamber (18) for receiving sanitary sewage, the middle part of the internal layer tank body (19) are provided between tank body (17) madial wall Second chamber (16) is opened up, the first chamber (18) is connected to the second chamber (16) bottom；

The sludge pump (8) be connected to the second chamber (16) and will be deposited on internal layer tank body (17) bottom sludge it is logical The mud return line (6) is crossed to be delivered in first chamber (18)；

The aerator is connected to the first chamber (18) and the second chamber (19) respectively, and by adjusting aeration quantity The first chamber (18) and the second chamber (19) is set to be respectively formed anaerobic environment and aerobic environment；

One end of the mixed-liquor return pipe (5) is connected to the top of the second chamber (16), and the other end and described first The top of chamber (18) is connected to, for the mixed-liquor return at the top of second chamber (16) to be directed into first chamber (18).

2. a kind of integral life sewage biochemical treatment system according to claim 1, which is characterized in that the aeration dress It sets including being arranged in the outer layer aerator (4) of the first chamber (18) bottom and setting at the second chamber (16) bottom The internal layer aerator (12) in portion, the outer layer aerator (4) and the internal layer aerator (12) pass through pipeline and drum Wind turbine connects.

3. a kind of integral life sewage biochemical treatment system according to claim 2, which is characterized in that the outer layer exposes It is provided on pipeline between device of air (4) and the air blower for maintaining the first chamber (18) interior dissolved oxygen concentration to exist The first regulating valve (13) of first threshold is arranged on the pipeline between the internal layer aerator (12) and the air blower useful In maintain the interior dissolved oxygen concentration of the second chamber (16) second threshold the second regulating valve (15).

4. a kind of integral life sewage biochemical treatment system according to claim 1, which is characterized in that further include being used for By water inlet pipe (1) that sewage imports in the first chamber (18) and for conveying second chamber (16) processing mixed liquor respectively To next sewage treatment unit and it is back to the outlet pipes (11) of the first chamber (18), the outlet of the water inlet pipe (1) It is arranged in the upper end of the first chamber (18) and in communication, the entrance of the outlet pipe (11) is arranged in the second chamber (16) upper end and in communication.

5. a kind of integral life sewage biochemical treatment system according to claim 4, which is characterized in that second chamber Be provided with downflow weir (10) on the open end madial wall of room (16), downflow weir (10) upper end it is open and with the second chamber (16) it is connected to, the outlet pipe (11) is connected to the downflow weir (10).

6. a kind of integral life sewage biochemical treatment system according to claim 4, which is characterized in that further include surrounding Outer layer water distributor (2) in internal layer tank body (19) peripheral side is set, and the outer layer water distributor (2) is located at the first chamber (18) upper end offers multiple drainings on the tube wall on first chamber (18) direction described in outer layer water distributor (2) face Hole, the outer layer water distributor (2) are connected to the water inlet pipe (1).

7. a kind of integral life sewage biochemical treatment system according to claim 1, which is characterized in that the internal layer tank Multiple being connected to for being connected to the first chamber (18) and the second chamber (16) is offered in the bottom side of the wall of body (19) Mouthful (3), multiple communication ports (3) around the internal layer tank body (19) axis uniform array in the side of the internal layer tank body (19) On wall.

8. a kind of integral life sewage biochemical treatment system according to claim 4, which is characterized in that the mixed liquor One end of return duct (5) is connected to the outlet pipe (11), the other end and the water inlet pipe of the mixed-liquor return pipe (5) (1) it is connected to, mixed liquor circulating pump (9) is provided on the mixed-liquor return pipe (5).

9. according to a kind of integral life sewage biochemical treatment system of claim 1 to 8 any one of them, which is characterized in that The quantity of the mud return line (6) is multiple, and multiple mud return lines (6) are connected to the sludge pump (8), multiple The mud return line (6) around the outer layer tank body (17) axis circumferential direction uniform array in outer layer tank body (17) open end Side wall on, the mud return line (6) go out liquid direction and the outer layer tank body (17) lateral wall is tangent.

10. according to a kind of integral life sewage biochemical treatment system of claim 1 to 8 any one of them, which is characterized in that Further include biological rope filler (14), the more biologies are both provided in the first chamber (18) and the second chamber (16) Rope filler (14).