Summary of the invention
One of the objects of the present invention is to provide a kind of sewage treatment unit, including at least one set of biochemistry pool and at least oneBiofilm reactor；
The biofilm reactor is placed on the outside of the biochemistry pool, and the biofilm reactor is for the biochemistry poolIn sewage flow through and obtain biochemical treatment, and the water flow after biochemical treatment return the biochemistry pool.
Sewage treatment unit of the present invention, by placing biofilm reactor in the external of the biochemistry pool, so thatSewage in the biochemistry pool flows through the biofilm reactor and further progress biochemical treatment, to improve sewage treatment effectFruit overcame the defect of land occupation both without newly-built biochemistry pool；The beneficial effect without halt production and economy is achieved again.
Illustratively, sewage treatment unit provided by the invention proposes mark transformation for urban wastewater treatment firm, can be from " cityTown Wastewater Treatment discharge standard " the level-one B standard in GB18918-2002 is increased to " urban wastewater treatment firm pollutionObject discharge standard " level-one A standard in GB18918-2002, even in " water environment quality standard " (GB3838-2002)Quasi- IV class.
Typical but certain non-limiting examples, the biochemistry pool includes AO technique, A2O technique, SBR technique, oxidation ditch process, MBROne in optional reaction tank in technique etc..
Preferably, the biofilm reactor includes shell, is set to the disturbance device of the enclosure interior, and fillingIn the intracorporal biofilm packing of the shell；The shell is reaction cavity, is provided at least one water inlet on the shell, untilA few water outlet and at least one gas outlet.
The biofilm reactor structure is simple, only the sewage in the biochemistry pool need to be introduced the water inletCarry out biochemical treatment to entering the intracorporal sewage of the shell by the intracorporal biofilm packing of the shell, and it is to be processed after the completion ofIt is discharged from the water outlet；And the biofilm reactor is a set of independent sewage treatment component, it is convenient to be realized to originalThe advanced treating of sewage in the biochemistry pool.
Preferably, the water inlet is connected to by first pipe with the biochemistry pool, and the water outlet passes through second pipeIt is connected to the biochemistry pool.
The sewage in the biochemistry pool is made to flow through the biomembrane with the second pipe by the first pipe anti-Answer device carry out advanced treating and then it is secondary flow back in the biochemistry pool, not only may be implemented the advanced treating to sewage, but without pairThe biochemistry pool progress is transformed complicatedly, and it is convenient to operate.
As one of optional technical solution, the outlet of the entrance of the first pipe and the second pipe without limitation,Any cell of entire sewage treatment process route can be arbitrarily set to.
Preferably, the import of the first pipe optionally connects with the anoxic pond, the aerobic tank or the anaerobic pondIt connects.
Preferably, the outlet of the second pipe optionally connects with the anoxic pond, the aerobic tank or the anaerobic pondIt connects.
Preferably, the sewage treatment unit includes at least one anoxic pond and at least one aerobic tank, with the anoxicFirst biofilm reactor of pond connection, the second biofilm reactor being connect with the aerobic tank.
The first biofilm reactor of aerobic environment is set as by inside and inside is set as the second of anaerobic environmentBiofilm reactor further improves the wastewater treatment efficiency of the anoxic pond Yu the aerobic tank simultaneously.
Preferably, the biochemistry pool is fixedly installed on ground, and the biofilm reactor on-fixed is set to ground.
Preferably, the biofilm reactor can be designed as the mode mobile relative to the biochemistry pool, can also setIt is calculated as the mode fixed relative to the biochemistry pool.The mode mobile relative to the biochemistry pool can be the biologyMembrane reactor is set as moveable cabinet form；The mode fixed relative to the biochemistry pool can be the biologyMembrane reactor is set as cement pit, and the cement pit is side-by-side or superimposed in biochemistry pool.
Preferably, the biofilm reactor further includes the mobile device for being set to the biofilm reactor bottom, intoThe preferably described mobile device of one step includes at least one scroll wheel.
Preferably, the scroll wheel can be one or more (such as 1,2,3,4 etc.), and can be according to describedThe size of biofilm reactor sets the scroll wheel particular number.
Preferably, the biofilm reactor is detachably connected with the biochemistry pool.
The biofilm reactor be convenient to move or be connected to it is any required be further processed on the device of sewage orIn unit.
Preferably, the biofilm packing the intracorporal filling rate of the shell be 60~85% (such as 63%, 65%,70%, 75%, 80%, 85% etc.), preferably 65%~75%.
65%~75% biofilm packing filling rate can make the biofilm packing be maintained at the state of limitation of movement,On the one hand wastewater treatment efficiency is further increased compared to other filling rates, on the other hand can promotes the biomembrane in aerationBiomass loosening, particle sedimentation and the outer layer biofilm detachment deposited on filler includes biomass, sedimented particle in a liquidAnd the sludge of the outer layer biomembrane to fall off facilitates discharge.
Preferably, the specific gravity of the biofilm packing be 0.9~1.2 (such as 1.0,1.0,1.1 etc.), preferably 0.92~0.98。
The specific gravity scope of application of biofilm packing provided by the invention is wide, the life for enabling to more water treatment efficiencies excellentObject film is for carrying out sewage treatment in the biofilm reactor.
Preferably, specific surface area >=200m of the biofilm packing2/m3(such as 220m2/m3、240m2/m3、260m2/m3、280m2/m3、300m2/m3、320m2/m3、340m2/m3、360m2/m3、390m2/m3、410m2/m3、440m2/m3、460m2/m3、490m2/m3、520m2/m3、540m2/m3、560m2/m3、600m2/m3、620m2/m3、640m2/m3、660m2/m3、700m2/m3、720m2/m3、740m2/m3、800m2/m3Deng), preferably 600~700m2/m3。
Preferably, the porosity of the biofilm packing be 50%~90% (such as 55%, 60%, 65%, 70%,75%, 80%, 85%, 90% etc.), preferably 70%~80%.
Preferably, the biofilm packing is unsymmetric structure.
On the one hand the biofilm packing of unsymmetric structure is easier so that the biofilm packing is maintained at limitation of movementState；Meanwhile it being also capable of forming the more gaps of relative populations and gap, be conducive to the operation of aeration process.
Preferably, the disturbance device includes the aerator for providing gas velocity, the water feed apparatus for providing water speed, provides powerAgitating device, in plug flow device any one or at least two combination, preferably provide the aerator of gas velocity.
Preferably, the disturbance device is aerator, specifically includes the micro-pore aeration for being provided at least one solarization air capDevice or boring aeration pipe, or both combination.
Preferably, the aerator can be micro-hole aerator or boring aeration pipe, it is preferable that the aerator is to wearHole aeration tube has at least one solarization air cap.
Preferably, the aerator be boring aeration pipe, the solarization air cap aperture downward, preferred aperture direction and groundVertical direction angle be 0~90 ° (such as 15 °, 30 °, 50 °, 60 °, 75 ° etc.), further preferred 45 °.
For example, the quantity of the solarization air cap is one or more (such as 4,5,6,8,10,20 etc.), it canThe particular number of solarization air cap to be arranged according to specific needs.
Preferably, the aperture of the solarization air cap be≤10mm (such as 10mm, 9mm, 8mm, 7mm, 6mm, 5mm, 4mm, 3mm,1mm etc.), preferably 1~5mm.
Preferably, the spacing of the solarization air cap is 10~15mm (such as 10mm, 11mm, 12mm, 13mm, 14mm, 15mmDeng).
The range of choice of the solarization air cap number of the aerator, the aperture of solarization air cap and aeration pitch of holes can be into oneStep offer and the biofilm reactor size and the matched selection of the biofilm packing, to further increase sewage treatmentEfficiency.
Preferably, the case top is provided with gas outlet.
Preferably, the water inlet and the water outlet are arranged in when the biofilm reactor carries out water treatment procedureBelow liquid level.
Preferably, the aerator is set to the bottom of the shell.
Preferably, the top of the shell is arranged in the water inlet and the water outlet.
Preferably, the water inlet and the water outlet are oppositely arranged.
The water outlet, water inlet and the position of gas outlet can be oppositely arranged, and guarantee path that sewage flows through as far as possibleLong, sewage can come into full contact with the biofilm packing, to guarantee wastewater treatment efficiency.
The second object of the present invention is to providing a kind of application method of sewage treatment unit, specifically comprise the following steps:
(1) place biofilm reactor is corresponding with biochemistry pool, be connected to the biofilm reactor and the biochemistry pool itBetween water route；
(2) sewage in the biochemistry pool is sent and carries out biochemical treatment into the biofilm reactor；
(3) water after the biofilm reactor biochemical treatment is back in the biochemistry pool.
Preferably, biochemistry pool described in step (1) include anoxic pond, aerobic tank, in anaerobic pond any one or at leastTwo combinations.
Preferably, aerator is set in the biofilm reactor, and the aerator rises gas in backwash processSpeed >=2m3/(m2Such as 2.5m h),3/(m2·h)、3.0m3/(m2·h)、3.5m3/(m2·h)、4.0m3/(m2·h)、4.5m3/(m2·h)、5.0m3/(m2·h)、5.5m3/(m2·h)、6.0m3/(m2·h)、6.5m3/(m2·h)、7.0m3/(m2·h)、8.0m3/(m2H) etc., backwash aeration time is 0.3h~3h (such as 1.0h, 1.5h, 2.0h, 2.5h, 3.0h), and backwash exposesThe time interval of gas is 1~10 day (such as 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days etc.).
After the biochemical treatment process of the biofilm reactor carries out a period of time, deposited on the biofilm packingBiomass is more and more with particle, after general biochemical treatment 1~10 day, opens the aeration that the aerator carries out backwashJourney, that is, the time interval being aerated are 1~10 day；Regulate and control suitable rising gas velocity and aeration time in aeration process, so that instituteIt states biomembrane to flow in biofilm reactor, mutually collide, the biomass deposited on filler and particle etc. loosen completely, are de-It falls, and is discharged with sewage；After aeration process, continue to repeat biochemical treatment process.
Preferably, the biofilm reactor under aerobic environment, aeration time be 0.5~3h (1.0h, 1.5h, 2.0h,2.5h, 3.0h), the time interval of the aeration is 3~5 days (4 days, 5 days etc.).
Preferably, the biofilm reactor under anaerobic environment, aeration time is 0.5~1h, between the time of the aerationIt is divided into 1~2 day.
The third object of the present invention is to provide a kind of purposes of sewage treatment unit, and the sewage treatment unit is at waterReason factory proposes mark transformation, and the mark that mentions of preferably urban wastewater treatment firm is transformed.
It is described to propose mark transformation and mean not stop production in original sewage disposal system, not be transformed and not newly-built ask in the case of,Higher more is reached to improve the treatment effect of water outlet to a step biochemical treatment more than sewage by adding biofilm reactorHarsh standard.
It should be noted that sewage treatment unit provided by the invention, which can choose, mentions mark for ground sewage treatment plantTransformation is newly-built, and can be used for underground sewage treatment works proposes mark transformation or newly-built, also can choose for optional new skillThe mark that mentions of art and any sewage treatment plant in the prior art is transformed or is created.
What the four of the object of the invention were to provide a kind of water treatment plant mentions mark remodeling method, and described method includes following steps:
(1) biofilm reactor is set in the external of water treatment plant's biochemistry pool, and is connected to the biofilm reactorWith the water route between the biochemistry pool；
(2) pending water in the biochemistry pool is made to flow into the biofilm reactor, it is raw through the biofilm reactorTreated water is obtained after change processing, the biochemistry pool is flowed back into the treated water again；
(3) treated water flowed back in the biochemistry pool in step is continued flow through to the subsequent processing list of the water treatment plantMember, so that completes water process mentions mark.
Preferably, biofilm packing is filled in the biofilm reactor, the filling rate of the biofilm packing is 60~85%, the water process amount of the biofilm reactor be the total treating capacity of the biochemistry pool 10% or more (such as 10%,12%, 15%, 18%, 20% etc.).
For above-mentioned biofilm reactor water process amount we without limitation, for example 8% can also be with, preferably 10% and withOn.
As typical but non-limiting example, original sewage treatment plant includes being sequentially connected since water inlet placeCoarse rack, fine fack, primary sedimentation tank, anaerobic pond, anoxic pond, aerobic tank, and close to water outlet secondary settling tank, original to thisWhen sewage treatment plant carries out proposing mark transformation, it is anti-that the biomembrane is connected beside the anoxic pond of biochemical treatment unit or aerobic tankDevice is answered, makes the former sewage for carrying out biochemical treatment by anoxic pond and aerobic tank, again flows through the biofilm reactor and obtainAdvanced treating then proceedes to be back in anoxic pond or the aerobic tank of the biochemical unit, and continues through original secondary settling tank,Final outflow water reaches level-one A standard or even quasi- IV in " urban wastewater treatment firm pollutant emission standard " GB18918-2002Class (GB3838-2002).And during proposing mark transformation herein, original sewage treatment plant is without stopping production, being not necessarily to transformation, and nothingIt need to create.
Compared with prior art, the invention has the following beneficial effects:
(1) sewage treatment unit of offer according to an embodiment of the invention, by the outside of the biochemistry poolThe biofilm reactor is placed, so that the sewage in the biochemistry pool flows through the biofilm reactor and further progress is rawChange processing, improves wastewater treatment efficiency, and final discharge is made to reach " urban wastewater treatment firm pollutant emission standard "Level-one A standard or even quasi- IV class (GB3838-2002) in GB18918-2002, the process are both not necessarily to newly-built biochemistry pool, overcomeThe defect of land occupation；The beneficial effect without halt production and economy is achieved again.
(2) biofilm reactor operational mode according to an embodiment of the invention is flexible, can be according to different pollutionsThe removal demand of object, by biofilm reactor flexible arrangement.Such as it can be by controlling the oxygen concentration in the biofilm reactorIt is matched with the anoxic pond or aerobic tank, with enhanced sewage treatment effect.Anaerobic environment is provided for the biofilm reactor, is hadThe heterotroph bacterium colony that high concentration is formed on sharp biofilm packing in the inner, carries out denitrification, removes the total nitrogen in sewage；Aerobic environment is provided for the biofilm reactor, favorably forms the aerobic bacteria bacterium colony of high concentration on filler in the inner, is carried outNitrification removes the ammonia nitrogen in sewage.
(3) the intracorporal biofilm packing of biofilm reactor shell according to an embodiment of the invention is filled out using be suitable forRate is filled, the biofilm packing can be made to be in the state of limitation of movement, on the one hand obtained compared to the superior water of fluidized bedTreatment effect, and be conducive to the realization of aeration process.
Specific embodiment
Of the invention for ease of understanding, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementationExample is only to aid in the understanding present invention, should not be regarded as a specific limitation of the invention.
Fig. 1 is the overlooking structure diagram of sewage treatment unit A1.As shown in Figure 1, the specific embodiment of the invention one mentionsA kind of sewage treatment unit A1, including at least one set of biochemistry pool 100 and at least one biofilm reactor 200 are supplied；The lifeObject membrane reactor 200 is placed in parallel in the outside of the biochemistry pool 100, and the biofilm reactor 200 supplies the biochemistry pool 100In sewage flow through and obtain biochemical treatment, and the water flow after biochemical treatment return the biochemistry pool 100.
The schematic view of the front view of Fig. 2 sewage treatment unit A2.As shown in Fig. 2, the specific embodiment of the invention two providesA kind of sewage treatment unit A2 the difference is that only that the biofilm reactor 200 stacks with specific embodiment oneIn the top of the biochemistry pool 100.
Fig. 3 is the structural schematic diagram of sewage treatment unit A3.As shown in figure 3, the specific embodiment of the invention three providesA kind of sewage treatment unit A3, including at least one set of biochemistry pool 100 and at least one biofilm reactor 200；The biomembraneReactor 200 is placed in parallel in the outside of the biochemistry pool 100, and the biofilm reactor 200 is in the biochemistry pool 100Sewage flows through and obtains biochemical treatment, and the water flow after biochemical treatment returns the biochemistry pool 100.The biochemistry pool 100 includes suitableAnaerobic pond 103, anoxic pond 101 and the aerobic tank 102 of secondary connection, the biofilm reactor 200 are connected with 300 He of first pipeThe import of second pipe 400, the first pipe 300 is connect with anoxic pond 101, the import of outlet and biofilm reactor 200Connection.The import of the second pipe 400 is connect with the outlet of biofilm reactor 200, and outlet is connect with anoxic pond 101.
Fig. 4 is the structural schematic diagram of sewage treatment unit A4.As shown in figure 4, the specific embodiment of the invention four providesA kind of sewage treatment unit A4 the difference is that only that the biofilm reactor 200 is connected with specific embodiment threeThe import of first pipe 300 and second pipe 400, the first pipe 300 is connect with aerobic tank 102, is exported anti-with biomembraneThe import of device 200 is answered to connect.The import of the second pipe 400 is connect with the outlet of biofilm reactor 200, outlet with it is aerobicPond 102 connects.
Fig. 5 is the structural schematic diagram of sewage treatment unit A5.As shown in figure 5, the specific embodiment of the invention five providesA kind of sewage treatment unit A5, with specific embodiment three the difference is that only the sewage treatment unit A5 include firstBiofilm reactor 201 and the second biofilm reactor 202, first biofilm reactor 201 connect with the anoxic pond 101It connects, second biofilm reactor 202 is connect with the aerobic tank 102, and in 201 cavity of the first biofilm reactorBottom is provided with the first aerator 221, and bottom is provided with the second aerator 222 in second biofilm reactor 202.
Position of first aerator 221 in the first biofilm reactor 201 described in the specific embodiment of the inventionIt sets and can be bottom, middle part or top, position of second aerator 222 in the second biofilm reactor 202 is also possible toBottom, middle part or top, those skilled in the art can select according to the professional knowledge and actual conditions of grasp.
Fig. 6 is the structural schematic diagram of biofilm reactor 200.In sewage treatment unit A1~A5, the biomembrane is anti-Device 200, the first biofilm reactor 201, the second biofilm reactor 202 is answered to can be understood as structure having the same.
As shown in fig. 6, the biofilm reactor 200 includes shell 210, the aeration dress being set in the shell 210220 are set, and the biofilm packing 230 being filled in the shell 210；It is reaction cavity, the shell in the shell 210At least one water inlet 211 is provided on 210, at least one water outlet 212 and at least one gas outlet 213；The water inletMouth 211 is connected to by first pipe 300 with the biochemistry pool 100, and the water outlet 212 passes through second pipe 400 and the lifeChange pond 100 to be connected to.
Gas outlet 213 is provided at the top of the shell 210 of the biofilm reactor 200；The water inlet 211 is arranged in instituteState at the upper one third of the height of shell 210, the water outlet 212 be arranged in the height of the shell 210 upper three/At two, and the water inlet 211 and the water outlet 212 are arranged at the biofilm reactor 200 and carry out water treatment procedureWhen liquid level below；The aerator 220 is set to the bottom of the shell 210.
The aerator 220 can be the boring aeration pipe；The opening direction of solarization air cap side perpendicular to the groundTo angle be 45 °, the number of the solarization air cap 223 is 60, aperture Wei≤10mm, preferably 3~5mm；The solarization air cap 223Spacing be 10~15mm.
The biochemistry pool 100 is generally fixedly installed on ground, optionally implementation, the biofilm reactor200 on-fixeds are set to ground, and the biofilm reactor 200 is detachably connected with the biochemistry pool 100.
The aerator 220, which could alternatively be, provides the water feed apparatus of water speed, the agitating device for providing power, plug-flow dressIn setting any one or at least two combination, such as blender, impeller or make wave pump etc..
Embodiment 12:
A kind of water treatment plant mentions mark remodeling method, includes the following steps:
(1) first biofilm reactor 201 and the second biofilm reactor 202 are put respectively as the water process100 side of biochemistry pool of factory, the water treatment plant are in the same manner as in Example 1；And it by first biofilm reactor 201 and gives birth toThe anoxic pond 101 for changing pond 100 is connected to, and second biofilm reactor 202 is connected to (i.e. with the aerobic tank 102 of biochemistry pool 100Sewage treatment unit A5)；First biofilm reactor 201 and the first biofilm reactor 202 use each independentlyBiofilm reactor in Fig. 6；Biofilm packing in first biofilm reactor 201 and the second biofilm reactor 202230 filling rate is all 75%, and specific gravity is all 0.98, and specific surface area is all 700m2/m3, porosity is all 80%, and is all non-Symmetrical structure；
(2) disengaging taps are opened, the pending water in the anoxic pond 101 is made to flow into first biofilm reactor201, after 201 biochemical treatment of the first biofilm reactor, the anoxic pond 101 is flowed back to again；And make simultaneously it is described goodPending water in oxygen pond 102 flows into second biofilm reactor 202, biochemical through second biofilm reactor 202After processing, the aerobic tank 102 is flowed back to again；Control disengaging water flow velocity keeps first biofilm reactor 201 and second rawThe water process amount of object membrane reactor 202 is respectively the anoxic pond 101 and the 15% of 102 water process amount of aerobic tank；
(3) the first aerator 221 and the second aerator 222 are opened, controlling aeration quantity respectively is that the first biomembrane is anti-Device 201 is answered to provide anaerobic environment, i.e. DO≤0.5mg/L；There is provided aerobic environment for the second biofilm reactor 202, i.e. 4mg/L >DO>2mg/L；
(4) after the anoxic biochemical treatment in the first biofilm reactor 201 carries out 1~2 day, the first aerator is adjusted221 start aeration process, and rising gas velocity is 10m3/(m2H), terminate aeration process after aeration process carries out 0.5~1h；AndAfter the aerobic treatment in the second biofilm reactor 202 carries out 3~5 days, adjusts the second aerator 222 and start to be aeratedProcess, rising gas velocity are 10m3/(m2H), terminate aeration process after aeration process carries out 0.5~3h；
(5) circulation step (3) and step (4).
Performance test:
(1) ammonia nitrogen, gravimetric method are tested according to state environment protecting standard-Na's reagent (HJ533-2009)(GB11901-89) survey suspended matter (SS), Hash reagent fast detection method survey COD and TN, test raw sewage treatment plant it is initial intoWater index and final outflow water index；The initial water inlet of raw sewage treatment plant is NH4- N=44.7mg/L, TN=50mg/L, SS=149.8mg/L, COD=210.8mg/L, two stage treatment technique are three sections of AO techniques.
(2) the final outflow water index in 1~embodiment of testing example 12, test result see the table below after the same method1。
Table 1
Remarks: quasi- IV class standard is " water environment quality standard " GB3838-2002.
Level-one A and level-one B standard are " urban wastewater treatment firm pollutant emission standard " GB18918-2002.
By the sewage of embodiment 1-12 processing it can be seen from upper table 1, effluent quality has certain difference, causes thisThe principal element of a little differences is filling rate, specific gravity, porosity and the specific surface area etc. of biofilm packing in biofilm reactor.AndComparative example 1~7 is as can be seen that the filling rate of the biofilm packing is higher, and corresponding biomass and volumetric loading improve, outIt is aqueous can be better.But it is found that after the filling rate of biofilm packing is more than 85%, excessively high is filled out for comparative example 6 and embodiment 7The effect that rate will make filler that can not mutually collide, be formed fluidisation in backwash process is filled, causes the biomembrane of aging can not be from filling outIt falls off on material, therefore not only water treatment efficiency declines, but also increases energy consumption when aeration backwash.It can be seen that from embodiment 1,8Specific surface area and porosity is bigger, and outlet effect is better.Because the increase of filler surface product can provide for the growth of microorganismSpace increases micro organism quantity, to improve the efficiency of removal pollutant；And porosity is bigger, can not only retain suspended matter,Also it is not easy to block, reduces backwash cycle, energy saving.It can be seen that specific gravity is in 0.92-0.98 model from embodiment 1,8,9 and 10Outlet effect is best when enclosing, this is because filler is suspended state within the scope of this, in backwash under same aeration intensity, generatesFluid effect it is more preferable.Good backwash process is conducive to falling off for aging biomembrane, and it is dirty to improve processing for the growth of neoformation filmThe efficiency of water.In addition, comparative example 1,11 and 12, it is possible to find when providing aerobic environment for component, removal ammonia nitrogen can be strengthened, beWhen component provides anaerobic environment, removal total nitrogen can be strengthened, it can be according to different sewage plant demands, flexibly with of the present inventionSewage treatment unit.
The Applicant declares that the present invention is explained by the above embodiments detailed process equipment and process flow of the invention,But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely onProcess equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention,Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within of the inventionWithin protection scope and the open scope.