CN205773865U - A kind of biological wastewater inactivation system - Google Patents

Abstract

A kind of biological wastewater inactivation system, including a temporary storage tank and at least two inactivation tanks, it is equipped with water inlet, sewage draining exit on inactivation tank in temporary storage tank, water-supply-pipe is set in temporary storage tank and connects the water inlet on each inactivation tank, temporary storage tank with inactivation tank on be equipped with air inlet pipe, exhaustor and cleaning pipe and in connect clean pipe cleaning device, air inlet pipe steam-out (SO) generating means, clean and manage external scale remover device and disinfectant solution device, inactivation tank is provided with " L " type transfer tube, tapping into trachea in one end of " L " type transfer tube, the other end is equipped with noiseless steam heater；It is additionally provided with thermometer, pressure transducer and liquid level sensor on temporary storage tank and inactivation tank, and communication connects PLC, air inlet pipe, exhaustor and cleaning pipe are equipped with pneumatic stopping valve, PLC drive connection water inlet water pump and each pneumatic stopping valve；This utility model operating cost is low, safe and reliable, and inactivation is thoroughly, it is achieved that Automated condtrol, reduces the labor intensity of workman.

Description

A kind of biological wastewater inactivation system

Technical field

This utility model relates to biological effluent treatment field, especially a kind of biological wastewater inactivation system.

Background technology

Currently, can produce big in experiment and production process in units such as Biopharmaceutical Enterprises, laboratory or scientific research institutions The active bio waste water of amount, in these biological wastewaters, the antibacterial containing large number of viable and virus, have the biggest hazardness, needs After sterilization processes and kills pathogen, just can enter next stage sewage disposal system.

Traditional processing method to biological wastewater is physical sterilization method, by using a temporary storage tank and at least two to go out Tank alive, and equipped corresponding pipeline, water pump and valve composition biological wastewater inactivation system, ultimate principle is: direct by steam Enter in active bio waste water, utilize high temperature to make the thalline degeneration of antibacterial or coagulase lose activity and make bacterial death, and sick The poison at high temperature chemical bond in DNA, RNA receipts heat that straddles over year causes bond fission, so that virus loses activity.

But, existing biological wastewater inactivation system have the disadvantage in that (1) mainly use each valve of manual operations and Water pump, does not use the pattern of automatic operating, and not only labor intensity is big, needs people at every moment to keep on equipment side, and Not energy-conserving and environment-protective, are easily generated damage operation and inactivation is the most thorough；(2) do not possess real time record function, it is impossible to record operational factor with Judge whether system is in normal running status, thus lack safety guarantee；(3) in inactivation tank, biological wastewater is carried out height During temperature inactivation, steam can not carry out being fully contacted mixing with biological wastewater, leverage inactivation efficiency, and biological wastewater exists Lack mobility during inactivateing, thus be easy to form incrustation scale, when needing follow-up cost substantial amounts of in inactivation tank Between carry out descaling rinsing；(4) either temporary storage tank, or inactivation tank, the most do not accomplish, without dead angle design, to cause in tank interior Inactivation is thorough, especially at the sewage draining exit of tank body, owing to the installation site of valve herein is unreasonable, frequently results in biological useless Water remains in the pipeline between sewage draining exit to valve, and this part biological waste water is difficult to be inactivated by steam, thus Secondary pollution is easily caused after blow-off pipe is discharged into next stage sewage disposal system.(5) do not have in temporary storage tank and inactivation tank Exhaust treatment system is set, when gas does not directly discharge through thorough disinfection sterilization in tank body, easily causes environment dirty Dye, causes serious threat to people's life and health.

Summary of the invention

The purpose of this utility model seeks to solve the problems referred to above problem that current biological waste water inactivation system exists, for this A kind of simple to operate, safe and reliable to operation, inactivation thoroughly and realizes the biological wastewater inactivation system of Automated condtrol.

Concrete scheme of the present utility model is: a kind of biological wastewater inactivation system, including a temporary storage tank and at least two Inactivation tank, is equipped with water inlet, sewage draining exit in temporary storage tank on inactivation tank, temporary storage tank arranges water-supply-pipe and connects each inactivation tank On water inlet, and be provided with on water-supply-pipe into water water pump, ball valve and pneumatic stopping valve, it is characterized in that: described temporary storage tank with go out Live and be equipped with air inlet pipe, exhaustor and cleaning pipe on tank, and connect the cleaning dress cleaning pipe in being provided with in temporary storage tank with inactivation tank Put, air inlet pipe steam-out (SO) generating means, clean and manage external scale remover device and disinfectant solution device, in inactivation tank, be provided with " L " Type transfer tube, one end of " L " type transfer tube taps into trachea in vertically arranging, horizontally disposed the stretching to of the other end inactivates pot bottom also Be provided with noiseless steam heater in exit, noiseless steam heater is near the end socket of inactivation tank wherein side；Described inactivation Tank is provided with recirculated water entrance, has been sequentially connected in series by circulating water pipe and changes the sewage draining exit from recirculated water entrance to inactivation tank Hot device and water circulating pump are to constitute cooling recirculation system, and the heat transferring medium entrance of heat exchanger leads to the connection of supercooled water transfer pipeline certainly Carry out water pipe system, peripheral hardware blow-off pipe on circulating water pipe；Described temporary storage tank is additionally provided with thermometer, pressure transducer on inactivation tank And liquid level sensor, air inlet pipe, exhaustor, cleaning pipe, circulating water pipe, cooling water transfer pipeline and blow-off pipe are equipped with gas Dynamic stop valve, the equal communication of described thermometer, pressure transducer and liquid level sensor connects PLC, PLC and water inlet Water pump, water circulating pump and each pneumatic stopping valve constitute drive connection.

Equipped with touch screen and buzzer in this utility model, touch screen carries out communication with PLC and is connected, buzzer Drive connection is constituted with PLC.

In temporary storage tank, it is provided with breather A described in this utility model, each inactivation tank is provided with breather B, ventilation Pipe A passes through pipeline connection each breather B, and equipped with relief valve on each breather B.

Inactivate described in this utility model and be furnished with heat-insulation layer on the outer wall of tank, temporary storage tank and inactivation tank are equipped with people Hole.

It is provided with ring flange and switch valve described in this utility model at sewage draining exit, ring flange offers what concentric was arranged Circular deep gouge, the entrance of switch valve matches with circular deep gouge, and is set with abutted flange on the entrance outer wall of switch valve, right Acting flange is connected by bolt and ring flange are fixing.

Water pump of intaking described in this utility model is composed in parallel to constitute the using and the reserved by two, and water circulating pump is by two also Joint group become to constitute the using and the reserved, every water inlet water pump, water circulating pump place pipeline on be respectively arranged with ball valve.

Being provided with drainage screen in this utility model in temporary storage tank, drainage screen correspondence is arranged in the entrance side of water-supply-pipe.

In this utility model, the tail end of the exhaustor external pipeline in temporary storage tank and inactivation tank is equipped with exhaust gas filter.

This utility model has the advantage that

(1) this utility model simple in construction, design ingenious, use PLC achieve each water in inactivation system Pump and the Automated condtrol of pneumatic stopping valve, it is achieved that the unmanned of inactivation system and production operation expeditiously, reduce Energy consumption, greatly reduces the labor intensity of operating cost and workman；

(2) this utility model achieved by PLC temperature involved when inactivation system is run, pressure, Liquid level and the real time record of other parameter index, and it is shown to user by touch screen, in this, as judging that system is properly functioning Foundation；

(3) this utility model is by arranging " L " type transfer tube and noiseless steam heater in inactivation tank, is guaranteeing steam It is fully contacted while mixing with biological wastewater so that biological wastewater back and forth refluxes in inactivation tank, the most not only improves Inactivation efficiency, and prevent biological wastewater when inactivateing, incrustation scale in biological wastewater condenses on the inwall of inactivation tank, Thus substantially reduce the workload of follow-up descaling rinsing；

(4) this utility model all uses in temporary storage tank and inactivation tank and designs without dead angle, the especially sewage draining exit to tank body Structure improve, effectively prevent the residual of biological wastewater, it is ensured that inactivation is thoroughly；

(5) this utility model configures heat-insulation layer on inactivation tank and ensure that scattering and disappearing of heat in inactivation process, so that it is guaranteed that Inactivating efficacy；

(6) in this utility model temporary storage tank and inactivation tank between breather on relief valve is set, it is ensured that inactivation tank When biological wastewater is carried out inactivation treatment, in the range of the pressure in tank body maintains calibration value, improve the peace that system is run Quan Xing；

(7) this utility model is by external exhaust gas filter at the exhaustor of temporary storage tank and inactivation tank so that in tank body Gas arrange in air the most again, in case causing environmental pollution, and people's life and health is threatened.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is control structure block diagram of the present utility model；

Fig. 3 is the partial enlarged drawing in Fig. 1 at K.

In figure: 1 temporary storage tank, 2 inactivation tanks, 3 water inlets, 4 sewage draining exits, 5 water-supply-pipes, 6 water inlet water pumps, 7 water circulating pumps, 8 air inlet pipe, 9 exhaustors, 10 cleaning pipes, 11 cleaning devices, 12 steam raising plants, 13 Scale remover device, 14 disinfectant solution devices, 15 " L " type transfer tube, 16 noiseless steam heaters, 17 PLC, 18 touch screens, 19 buzzers, 20 breather A, 21 breather B, 22 recirculated water entrances, 23 circulating water pipes, 24 heat exchangers, 26 running water pipe systems, 27 blow-off pipes, 28 blowdown ponds, 29 heat-insulation layers, 30 manholes, 31 Ring flange, 32 switch valves, 33 circular deep gouges, 34 abutted flanges, 35 drainage screens, the pneumatic cut-off of F1, F2～F19 Valve, J1, J2～J11 ball valve, S1, S2 relief valve, PL1, PL2, PL3 exhaust gas filter, T1, T2, T3 thermometer, H1, H2, H3 liquid level sensor, P1, P2, P3 pressure transducer.

Detailed description of the invention

Seeing Fig. 1-2, this utility model includes a temporary storage tank 1 and two inactivation tanks 2, and wherein two inactivation tanks 2 are respectively It is labeled as 1# inactivation tank and 2# inactivates tank, and two are used alternatingly, use intermittent mode to run.In temporary storage tank 1 and inactivation Be equipped with water inlet 3, sewage draining exit 4 on tank 2, temporary storage tank 1 is arranged water-supply-pipe 5 connect two inactivation tank on water inlets 3, and Water-supply-pipe 5 is provided with into water water pump 6, ball valve and pneumatic stopping valve, and concrete pipeline is as follows: water inlet water pump 6 is composed in parallel by two To constitute the using and the reserved, corresponding equipped with ball valve J6, J7, in temporary storage tank 1 to water inlet water on the pipeline at two water inlet water pump places Water-supply-pipe 5 between pump 6 is provided with ball valve J5 parallel with one another and pneumatic stopping valve F9, and in the water inlet of docking 1# inactivation tank Pneumatic stopping valve F10 is installed on the water-supply-pipe 5 of mouth 3, the water-supply-pipe 5 of the water inlet 3 of docking 2# inactivation tank installs pneumatic section Only valve F11.It is equipped with air inlet pipe 8, exhaustor 9 and cleans pipe 10 on described temporary storage tank 1 and inactivation tank 2, and in temporary storage tank 1 and 1# Inactivation tank and 2# inactivate in being equipped with in tank and connect the cleaning device 11 cleaning pipe 10, air inlet pipe 8 steam-out (SO) generating means 12, and At the inlet end of air inlet pipe 8 equipped with ball valve J4, corresponding on the pipeline of air inlet pipe 8 to temporary storage tank 1,1# inactivation tank and 2# inactivation tank Equipped with pneumatic stopping valve F1, F2, F3；The tail end of exhaustor 9 external pipeline on temporary storage tank 1,1# inactivation tank and 2# inactivation tank divides Not corresponding equipped with exhaust gas filter PL1, PL2, PL3, and on the exhaustor 9 corresponding with 1# inactivation tank and 2# inactivation tank respectively Equipped with pneumatic stopping valve F18, F19, the cleaning pipe 10 external scale remover device 13 of temporary storage tank 1,1# inactivation tank and 2# inactivation tank with Disinfectant solution device 14, is equipped with " L " type transfer tube 15, in one end of " L " type transfer tube 15 is vertically arranged in two inactivation tanks 2 Tapping into trachea 8, the other end is arranged in parallel and stretches to inactivate bottom tank 2 and be provided with noiseless steam heater 16, nothing in exit Sound steam heater is near the end socket of inactivation tank 2 wherein side；Temporary storage tank 1 is additionally provided with thermometer T1, pressure transducer P1 And liquid level sensor H1,1# inactivation tank is additionally provided with thermometer T2, pressure transducer P2 and liquid level sensor H2, inactivates at 2# Be additionally provided with thermometer T3, pressure transducer P3 and liquid level sensor H3 on tank, described thermometer T1～T3, pressure transducer P1～ P3 and the equal communication of liquid level sensor H1～H3 connect PLC 17, and the real-time data transmission being used for collecting is to PLC control Device 17, PLC 17 respectively with water inlet water pump 6 and pneumatic stopping valve F1, F2, F3, F4, F5, F6, F9, F10, F11, F18, F19 constitutes drive connection.

Seeing Fig. 2, equipped with touch screen 18 and buzzer 19 in the present embodiment, touch screen 18 is carried out with PLC 17 Communication connects, and touch screen 18 has configuration interface, temperature in real time display temporary storage tank 1,1# inactivation tank and 2# inactivation tank, The on off state of liquid level, pressure information and each water pump and pneumatic stopping valve, and for operator select manual operation mode and Automatic control mode and input other relevant control instruction；Described buzzer 19 constitutes drive connection, buzzing with PLC 17 Device 19, when liquid level, temperature and the air pressure of tank interior are beyond typical set value, sends warning under the control of PLC 17 Instruction.

In temporary storage tank 1, be provided with breather A20 described in the present embodiment, 1# inactivation tank and 2# inactivation tank all on be provided with logical Trachea B21, breather A20 are by the breather B21 on pipeline connection two inactivation tank and right on corresponding breather B21 Should be equipped with relief valve S1, S2.

The present embodiment is provided with recirculated water entrance 22 on 1# inactivation tank, the row from recirculated water entrance 22 to 1# inactivation tank It has been sequentially connected in series heat exchanger 24 with water circulating pump 7 to constitute cooling recirculation system, heat exchanger by circulating water pipe 23 between dirty mouth 4 The heat transferring medium entrance of 24 leads to supercooled water transfer pipeline connection running water pipe system 26, peripheral hardware blow-off pipe on circulating water pipe 23 27, blow-off pipe 27 leads to the blowdown pond 28 of next stage sewage disposal system；Equipped with pneumatic stopping valve on circulating water pipe 23 F12, F13, water circulating pump 7 is composed in parallel to constitute the using and the reserved by two, corresponding on the pipeline at two water circulating pump places Equipped with ball valve J8, J9, equipped with pneumatic stopping valve F7 and ball valve J1 on cooling water transfer pipeline, equipped with pneumatic on blow-off pipe 27 Stop valve F14.

2# inactivation tank is configured with the cooling recirculation system identical with structure on 1# inactivation tank, is arranged on this cooling circulation Ball valve J10, J11 in system respective line, and pneumatic stopping valve F8, F15, F16, F17 are as it is shown in figure 1, described pneumatic cut-off Valve F7, F8, F12～F17 all constitute drive connection with PLC 17.

Inactivate described in the present embodiment and be furnished with heat-insulation layer 29 on the outer wall of tank 2, temporary storage tank 1 and inactivation tank 2 are equipped with Manhole 30, in order to the disposition of biological wastewater in observation tank body, and facilitate staff that the device in tank body is overhauled.

See Fig. 3, the present embodiment is provided with ring flange at the sewage draining exit 4 of temporary storage tank 1 and 1# inactivation tank and 2# inactivation tank 31 with switch valve 32, ring flange 31 offers the circular deep gouge 33 that concentric is arranged, the entrance of switch valve 32 and circular deep gouge 33 match, and are set with abutted flange 34 on the entrance outer wall of switch valve 32, and abutted flange 34 is by bolt and ring flange 31 fixing connections.The outlet of the switch valve in temporary storage tank 1 connects blowoff line, the switch on 1# inactivation tank and 2# inactivation tank The outlet of valve connects cooling recirculation system circulating water pipe 23.

Being provided with drainage screen 35 in the present embodiment in temporary storage tank 1, drainage screen 35 correspondence is arranged in the entrance side of water-supply-pipe 5, To prevent the impurity blocking water-supply-pipe 5 in biological wastewater, it is ensured that the biological wastewater in temporary storage tank 1 is under the effect of water inlet water pump 6 It is drawn in 1# inactivation tank and 2# inactivation tank and carries out inactivation treatment.

In the present embodiment, temporary storage tank 1 is horizontal monolayer non-pressure vessel, and the design condition that should meet is as follows: (1) design pressure: In tank: 0.1MPa;(2) design temperature: in tank: 100 DEG C；(3) operating temperature: in tank: 100 DEG C;(4) operating pressure: in tank: 0.09MPa;(5) nominal volume: 2000L；Total measurement (volume) is 2300L, inner diameter of steel flue 1200mm, and height is 1850mm, coefficient: 90%；(6) equipment liner material: SUS304；(7) standard, regulation: NB/T47003.1-2009 " steel welding normal pressure is manufactured and designed Container " design, manufacture, check and accept；Ra3.2 μm it is polished to, without dead angle health convenient for cleaning in the tank of temporary storage tank 1；Tank body outer surface It is polished to Ra0.8 μm.

In the present embodiment, 1# inactivation tank and 2# inactivation tank are horizontal pressure vessel, and the design condition that should meet is as follows: (1) sets Meter pressure: in tank: 0.3MPa;(2) design temperature: in tank: 150 DEG C；(3) operating temperature: in tank: 146 DEG C;(4) work pressure Power: in tank: 0.25MPa;(5) temperature fluctuation: ± 2 DEG C；(6) temperature homogeneity: ± 2 DEG C；(7) nominal volume: 1000L；Always Volume is 1250L, inner diameter of steel flue 1000mm, and height is 1530mm, a diameter of 1100mm of heat-insulation layer 29, coefficient: 850%； (8) equipment liner material: SUS304；(9) heating-up time: be raised to 125 DEG C from 20 DEG C, need 45min;(10) manufacture and design standard, Regulation: GB150-2011 " GB150-1998 " designs, manufactures, checks and accepts；It is polished in the tank of 1# inactivation tank and 2# inactivation tank Ra3.2 μm, without dead angle health convenient for cleaning；Tank body outer surface is polished to Ra0.8 μm.

In the present embodiment, the temperature-sensing probe of liquid level sensor H1, H2, H3 uses 304 rustless steels to make, and surface finish Process, there is dirt corrosion-resistant, resistance to；Heatproof more than 130 DEG C, reliability is high；Meanwhile, three liquid level sensors possess continuously Signal output gather and under, in, upper tribute signal output function, and when super liquid level, PLC 17 control buzzer 19 Send warning instruction.

In running order at 1# inactivation tank, when 2# inactivation tank stands by, work process of the present utility model is such as Under:

(1) biological wastewater inactivation treatment: biological wastewater enters to tank interior, level sensing from the water inlet 3 of temporary storage tank 1 Liquid level is monitored and by Monitoring Data transmission to PLC 17 by device H1 in real time, when the water level in temporary storage tank 1 reaches to set During water level (60%-70% of tank body internal volume), PLC 17 controls pneumatic stopping valve F9, the F10 on water-supply-pipe 5 and opens, and Control wherein water inlet water pump 6 startup optimization, the biological wastewater in temporary storage tank 1 is transported in 1# inactivation tank；Then open Ball valve J4, PLC 17 controls pneumatic stopping valve F2 and opens, and the high-temperature steam in steam raising plant 12 is passed through by pipeline To 1# inactivation tank, and carry out being fully contacted mixing with biological wastewater under the effect of noiseless steam heater 16, biology is given up Pathogen in water carries out high-temperature inactivation, and meanwhile, biological wastewater moves in circles under the promotion of steam in 1# inactivation tank Ground backflow, effectively prevent the generation of fouling；During inactivation, when 1# inactivation tank internal gas pressure exceedes setting value, safety Valve S1 opens, and is entered to temporary storage tank 1 by the gas of excess, to guarantee that the air pressure in 1# inactivation tank maintains certain scope In.

(2) cooling: PLC 17 controls the cooling recirculation system startup optimization being equipped with on 1# inactivation tank, to through going out Live process after biological wastewater lower the temperature, be specially open ball valve J1, PLC 17 control pneumatic stopping valve F7, F12, F13 opens and controls water circulating pump 7 startup optimization, and running water pipe system 26 is continually fed into tap water with to biology to heat exchanger 24 Waste water is lowered the temperature, and when the temperature of biological wastewater is reduced to 40 DEG C, controls pneumatic stopping valve F7, F12, F13 and closes, pneumatic section Only valve F14 opens, biological wastewater from blow-off pipe 27 row to the blowdown pond 28 of next stage sewage disposal system.

(3) cleaning: optional unlatching ball valve J2, PLC 17 controls pneumatic stopping valve F4, F5 and opens, and disinfectant solution fills Put 14 to be passed through disinfectant solution and carried out Chemical cleaning by cleaning device 11 in temporary storage tank 1 and 1# inactivation tank；Also optional unlatching ball valve J3, PLC 17 controls pneumatic stopping valve F4, F5 and opens, and scale remover device 13 is passed through in temporary storage tank 1 and 1# inactivation tank and removes Dirt agent is carried out descaling rinsing by cleaning device 11.

(4) vapor sterilization, opens ball valve J4, and PLC 17 controls pneumatic stopping valve F1, F2 and opens, and high-temperature steam leads to Enter disinfection to temporary storage tank 1 and 1# inactivation tank, the gas after having disinfected, in temporary storage tank 1 and 1# inactivation tank Discharge outside tank body after again passing by the secondary sterilization process of exhaust gas filter PL1, PL2.

Claims (8)

1. a biological wastewater inactivation system, including a temporary storage tank and at least two inactivation tanks, in temporary storage tank and inactivation tank It is equipped with water inlet, sewage draining exit, temporary storage tank arranges water-supply-pipe and connects the water inlet on each inactivation tank, and set on water-supply-pipe Have into water water pump, ball valve and pneumatic stopping valve, it is characterized in that: described temporary storage tank is equipped with air inlet pipe, exhaustor on inactivation tank With clean pipe, and temporary storage tank with inactivation tank in be provided with in connect clean pipe cleaning device, air inlet pipe steam-out (SO) generating means, Clean and manage external scale remover device and disinfectant solution device, in inactivation tank, be provided with " L " type transfer tube, one end of " L " type transfer tube Tapping into trachea in vertically arranging, horizontally disposed the stretching to of the other end inactivates pot bottom and is provided with noiseless steam-water mixing in exit Device, noiseless steam heater is near the end socket of inactivation tank wherein side；Described inactivation tank is provided with recirculated water entrance, from recirculated water Entrance follows with composition cooling to being sequentially connected in series heat exchanger and water circulating pump by circulating water pipe between the sewage draining exit on inactivation tank Loop systems, the heat transferring medium entrance of heat exchanger lead to supercooled water transfer pipeline connection running water pipe system, on circulating water pipe outside If blow-off pipe；Described temporary storage tank is additionally provided with thermometer, pressure transducer and liquid level sensor, air inlet pipe, row on inactivation tank It is equipped with pneumatic stopping valve on trachea, cleaning pipe, circulating water pipe, cooling water transfer pipeline and blow-off pipe；Described thermometer, pressure Sensor and the equal communication of liquid level sensor connect PLC, PLC and water pump of intaking, water circulating pump and each is pneumatic Stop valve constitutes drive connection.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: equipped with touch screen and buzzer, Touch screen carries out communication with PLC and is connected, and buzzer constitutes drive connection with PLC.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: be provided with breather A in temporary storage tank, Each inactivation tank is provided with breather B, breather A and passes through pipeline connection each breather B, and fill on each breather B There is relief valve.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: be furnished with on the outer wall of described inactivation tank Heat-insulation layer, is equipped with manhole in temporary storage tank and inactivation tank.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: be provided with ring flange at described sewage draining exit With switch valve, ring flange offering the circular deep gouge that concentric is arranged, the entrance of switch valve matches with circular deep gouge, and Being set with abutted flange on the entrance outer wall of switch valve, abutted flange is connected by bolt and ring flange are fixing.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: described water inlet water pump is by two parallel connections Composition is to constitute the using and the reserved, and water circulating pump is composed in parallel to constitute the using and the reserved by two, at every water inlet water pump, recirculated water It is respectively arranged with ball valve on the pipeline at pump place.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: be provided with drainage screen in temporary storage tank, Drainage screen correspondence is arranged in the entrance side of water-supply-pipe.

A kind of biological wastewater inactivation system the most according to claim 1, is characterized in that: the row in temporary storage tank and inactivation tank The tail end of trachea external pipeline is equipped with exhaust gas filter.