CN207267828U - A kind of city domestic sewage recycling device - Google Patents

A kind of city domestic sewage recycling device Download PDF

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Publication number
CN207267828U
CN207267828U CN201720443480.8U CN201720443480U CN207267828U CN 207267828 U CN207267828 U CN 207267828U CN 201720443480 U CN201720443480 U CN 201720443480U CN 207267828 U CN207267828 U CN 207267828U
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China
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water
ultrafiltration
devices
domestic sewage
city domestic
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CN201720443480.8U
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Chinese (zh)
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张喜兵
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ZHANGJIAGANG JUNMA STELL CORD CO Ltd
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ZHANGJIAGANG JUNMA STELL CORD CO Ltd
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Abstract

The utility model discloses a kind of city domestic sewage recycling device, belong to technical field of sewage, it includes former pond, ultrafiltration intake pump, self-cleaning filter, plate heat exchanger, ultrafiltration apparatus, ultrafiltration production pond, RO booster pumps, cartridge filter, RO high-pressure pumps, RO devices and reuse pool being sequentially communicated etc..The recycling device carries out advanced treating by the discharge water qualified to sewage treatment plants processing, it is ensured that recycle-water reaches enterprise's industrial water etc. and uses mixedly water quality standard, realizes that the Efficient Cycle of water resource utilizes.

Description

A kind of city domestic sewage recycling device
Technical field
It the utility model is related to city domestic sewage recovery and reuse technology field, and in particular to a kind of city domestic sewage Recycling device.
Background technology
With the large-scale development in city and the sharp increase of urban population, city domestic sewage quantity rises year by year.In face of people Requirement for living environment quality increasingly lift inevitable requirement with city image shaping, solve the problems, such as city domestic sewage It is extremely urgent.Sanitary sewage is the chief component of municipal sewage, the sanitary sewage in most cities be after simply and easy treat just Discharged, fail to flow through river to sewage and be for further processing, this also just exacerbates the further deterioration of downstream water environment.
Existing city dweller's residence area, Administrative Area, easy to manage, caused sanitary sewage passes through drainage To sewage treatment plant, sanitary sewage centralized collection is handled, is directly discharged after sewage treatment plant's processing is qualified, directly discharge can make It is relatively low into water resource waste, recovery utilization rate.City domestic sewage is a kind of metastable water resource of water quality, if it is possible to will City domestic sewage processing tail water is used for the urban reclaimed waters such as industrial water, agricultural irrigation water, municipal Afforestation Landscape water, that Substantial amounts of water resource can be saved, is benefited the nation and the people.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of city domestic sewage to recycle again Using device, which carries out advanced treating by the discharge water qualified to sewage treatment plants processing, really Guarantor's recycle-water reaches enterprise's industrial water etc. and uses mixedly water quality standard, realizes that the Efficient Cycle of water resource utilizes.
To solve the above problems, technical solution is as follows used by the utility model:
A kind of city domestic sewage recycling device, its former pond for including being sequentially communicated, ultrafiltration intake pump, from clear Wash filter, plate heat exchanger, ultrafiltration apparatus, ultrafiltration production pond, RO booster pumps, cartridge filter, RO high-pressure pumps, RO devices and Reuse pool;The lower part in the ultrafiltration production pond is connected with backwashing pump, and the backwashing pump is connected with ultrafiltration apparatus, described anti- Wash between pump and ultrafiltration apparatus and be provided with ultrafiltration chemicals dosing plant;Antisludging agent is provided between the RO booster pumps and cartridge filter Device, reducing agent device and non oxidizing bactericide device;RO Membrane cleaning devices are connected with the RO devices, the RO films are clear Cleaning device includes RO cleanings water tank, RO flushing water pumps, the cleaning filter being sequentially communicated, and the cleaning filter passes through dissolving It is connected with RO devices;The self-cleaning filter, ultrafiltration apparatus, the concentrated water of the backwash water of RO devices and RO devices pass through dirt Water return duct is delivered to sewage disposal system.
As the utility model preferred embodiment, the RO Membrane cleanings device further includes what is connected with the dissolving Compressed steam device, is provided with one way stop peturn valve and flow in the connecting pipe between dissolving and the compressed steam device Meter.
As the utility model preferred embodiment, pressure indicator is provided with the dissolving;The dissolving Solenoid valve is provided with connecting pipe between RO devices.
As the utility model preferred embodiment, unidirectional stop is provided with the water outlet connecting pipe of the backwashing pump Return valve.
As the utility model preferred embodiment, the plate heat exchanger is vapour-water plate heat exchanger.
As the utility model preferred embodiment, the self-cleaning filter is high-efficiency fiber filter.
As the utility model preferred embodiment, the ultrafiltration membrane in the ultrafiltration apparatus is PDVF hollow-fibre membranes, Aperture is 0.01~0.1 μm.
Compared with prior art, the beneficial effects of the utility model are:
The recycling device of the utility model by the qualified discharge water of city domestic sewage processing by carrying out depth Processing, using ultrafiltration with the reverse osmosis treatment process being combined, it is ensured that recycle-water reaches enterprise's industrial water etc. and uses mixedly water quality standard, Water after advanced treating can directly be allocated utilization, green as urban road cleaning water, agricultural irrigation water, municipal administration Change landscape water, recovery utilization rate is high, realizes that the Efficient Cycle of water resource utilizes, may advantageously facilitate raw sewage disposal receiving water body Quality recovery, finally so that water resource environment be improved and recover.The utility model advanced technology, treatment effect It is reliable and stable, operational administrative is simple, energy saving, floor space is small, construction investment save it is low with operating cost.
Brief description of the drawings
Fig. 1 is the structure diagram of city domestic sewage recycling device described in the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
It is a kind of city domestic sewage recycling device described in the utility model, it includes connecting successively with reference to Fig. 1 Logical former pond, ultrafiltration intake pump, self-cleaning filter, plate heat exchanger, ultrafiltration apparatus, ultrafiltration production pond, RO booster pumps, protect Pacify filter, RO high-pressure pumps, RO devices and reuse pool.
Wherein, former pond is used to store the qualified discharge water of sewage disposal system processing.It is raw water that ultrafiltration intake pump, which is used for, The conveying increase power of (discharge water).Self-cleaning filter is used to intercept the foul in raw water, when water is flowed through from filter, Foul can be gradually accumulated in the filtering surface of strainer in water, so as to pressure difference occur between causing inlet tube and outlet tube, when pressure difference reaches pre- If backwash starts during value, resulting backwash water is flowed in sewage disposal system via sewage backflow pipe;Preferably, from clear It is high-efficiency fiber filter to wash filter.Plate heat exchanger is for constant at 25 DEG C or so by water temperature heating, to ensure in the winter time Water flux is supplied required by reaching when temperature is relatively low;Preferably, plate heat exchanger is vapour-water plate heat exchanger.Ultrafiltration apparatus is used In removing particulate, colloid, bacterium, virus, heat source, protein and larger molecular organics in water, water is set to be purified, as anti- The pre-processing device of osmosis system, can effectively remove colloidal solid, the impurity such as organic matter in water removal;Preferably, ultrafiltration fills Ultrafiltration membrane in putting is PDVF hollow-fibre membranes, and aperture is 0.01~0.1 μm.Ultrafiltration production pond is used to store ultra-filtration water.RO Booster pump is used to increase power for the conveying of ultra-filtration water.Cartridge filter is used to ensure anti-without large granular impurity breakdown in water Permeable membrane element.RO high-pressure pumps are used to provide power resources for the operation of reverse osmosis unit.RO devices are as most important desalination Device, most of soluble salt point, colloid, organic matter and microorganism in water are removed using the characteristic of reverse osmosis membrane.Reuse Pond is used for the water outlet for storing RO devices.
The lower part in ultrafiltration production pond is connected with backwashing pump, and backwashing pump is connected with ultrafiltration apparatus, and backwashing pump is filled with ultrafiltration Ultrafiltration chemicals dosing plant is provided between putting.When raw water is after ultrafiltration intake pump sequentially enters self-cleaning filter and plate heat exchanger Into ultrafiltration apparatus, the colloid in water removal is removed, enters ultrafiltration production pond afterwards, by backwashing pump and the linkage of ultrafiltration chemicals dosing plant to super Filter is backwashed, and resulting backwash water is flowed in sewage disposal system via sewage backflow pipe.The water outlet of backwashing pump One way stop peturn valve is provided with mouth connecting pipe, to prevent the aqueous reflux of ultrafiltration apparatus water inlet to ultrafiltration from producing in pond.
Antisludging agent device, reducing agent device and non oxidizing bactericide dress are provided between RO booster pumps and cartridge filter Put.The effect of antisludging agent device is to add efficient scale inhibitor special in reverse osmosis forward direction main pipe, reverse osmosis to prevent Concentrated water side produce fouling.Reducing agent device is used to add reducing agent into main pipe, its chlorine residue requirement of intaking is less than 0.1ppm, To go the chlorine residue in water removal, so as to protect reverse osmosis membrane to be damaged from chlorine residue.Using sewage as the RO systems of source water, easily produce Microbial contamination, non oxidizing bactericide device are used to periodically add non oxidizing bactericide, are sterilized with regular impact.
After water quality after hyperfiltration treatment meets reverse osmosis inflow requirement, reverse osmosis, moisture is carried out into RO devices Sub and minimal amount of small molecular weight material is discharged water in reuse pool, otherwise intransitable concentrated water is passed through by film layer through pipeline Flowed to by sewage backflow pipe in sewage disposal system.RO Membrane cleaning devices are connected with RO devices, which includes RO cleanings water tank, RO flushing water pumps, the cleaning filter being sequentially communicated.RO flushing water pumps are used in the RO water tanks of reverse osmosis water outlet The lifting of hydraulic pressure, for RO devices before each run or before shutting down backwash reverse osmosis membrane surface, reverse osmosis to ensure Flushing work pressure and flushing water flow needed for apparatus system membrane component;Cleaning filter to meet the cleaning of RO devices and The filtering of medicament.RO cleaning water tanks are connected by connecting pipe with reuse pool, and are provided with one way stop peturn valve in the connecting tube. Cleaning filter is connected by dissolving with RO devices, and compressed steam device is communicated with dissolving, is provided with dissolving For detecting the pressure indicator of pressure inside the tank, unidirectional stop is provided with the connecting pipe between dissolving and compressed steam device Return valve and flowmeter.Solenoid valve is provided with connecting pipe between dissolving and RO devices.The work of RO Membrane cleaning devices is former Reason is as follows:First cleaned in RO in water tank and add medicament preparation cleaning solution, open cleaning pump, the RO cleaning solutions cleaned in water tank are sent Enter to clean filter, be sent into after filtering in dissolving, while open compressed steam device, make steam with cleaning solution in molten gas Mixed in tank, it is heated to 25-30 DEG C to cleaning solution, be conducive to improve the cleaning performance of reverse osmosis membrane, work as dissolving Interior pressure reaches optimal mixed effect (i.e. gas is sufficiently mixed with cleaning solution, and it is existing microgranular to be sufficiently mixed rear gas), will Gas and liquid mixture is sent into RO devices.Since there is narrow runner, gas-liquid mixed between the diaphragm and diaphragm of reverse osmosis membrane Into after air stream enter runner, minute gas is under pressure extruding liquid, collision is produced in membrane surface, so that diaphragm produces vibration.Generally The pollutant of reverse osmosis membrane is also attached to the membrane surface on runner both sides, therefore since the vibration of diaphragm causes the pollutant of attachment Produce cracking and produced with film surface and separate and float, and then reacted and decomposed with the active ingredient of cleaning solution, after decomposition Particulate matter be back to together with the backwash water with pressure by sewage backflow pipe in sewage disposal system.Certainly, also can be in RO Cleaning water tank in set spiral type heated rod cleaning solution is fully heated, in conjunction with room temperature compressed air make cleaning solution and Compressed air is mixed into gas liquid mixture.
Embodiment 1:
Using recycling device described in the utility model to the sanitary sewage of certain city domestic sewage treatment plant at The qualified discharge water of reason carries out advanced treating, and before processing detects the indices of raw water in former pond, and the results are shown in Table 1:
1 raw water index table of table
Sequence number Project name Unit Index
1 pH 6~9
2 CODcr mg/L ≤20
3 TP mg/L ≤0.3
4 NH3-N mg/L ≤0.5
5 TN mg/L ≤12
6 Electrical conductivity us/cm ≤600
After the city domestic sewage recycling device processing of the utility model, recycle-water in reuse pool is detected Indices, the results are shown in Table 2:
2 recycle-water index table of table
Sequence number Project name Unit Index
1 pH 6~9
2 CODcr mg/L ≤10
3 TP mg/L ≤0.15
4 NH3-N mg/L ≤0.5
5 TN mg/L ≤2
6 Electrical conductivity us/cm ≤40
By Tables 1 and 2 as it can be seen that CODcr, TP, TN of recycle-water after the utility model is handled and electrical conductivity etc. It is greatly lowered, the water quality for meeting the urban reclaimed waters such as industrial water, agricultural irrigation water, municipal Afforestation Landscape water will Ask, recovery utilization rate is high, realizes that the Efficient Cycle of water resource utilizes.
The above embodiment is only the preferred embodiment of the utility model, it is impossible to is protected with this to limit the utility model Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to In the utility model scope claimed.

Claims (6)

  1. A kind of 1. city domestic sewage recycling device, it is characterised in that:Including be sequentially communicated former pond, ultrafiltration water inlet Pump, self-cleaning filter, plate heat exchanger, ultrafiltration apparatus, ultrafiltration production pond, RO booster pumps, cartridge filter, RO high-pressure pumps, RO devices and reuse pool;The lower part in the ultrafiltration production pond is connected with backwashing pump, and the backwashing pump is connected with ultrafiltration apparatus It is logical, it is provided with ultrafiltration chemicals dosing plant between the backwashing pump and ultrafiltration apparatus;Set between the RO booster pumps and cartridge filter It is equipped with antisludging agent device, reducing agent device and non oxidizing bactericide device;RO Membrane cleaning devices are connected with the RO devices, The RO Membrane cleanings device includes RO cleanings water tank, RO flushing water pumps, the cleaning filter being sequentially communicated, the cleaning filter It is connected by dissolving with RO devices;The RO Membrane cleanings device further includes the compressed steam dress connected with the dissolving Put, one way stop peturn valve and flowmeter are provided with the connecting pipe between dissolving and the compressed steam device;It is described certainly clear The concentrated water for washing filter, ultrafiltration apparatus, the backwash water of RO devices and RO devices is delivered to sewage disposal by sewage backflow pipe System.
  2. 2. city domestic sewage recycling device according to claim 1, it is characterised in that:Set on the dissolving It is equipped with pressure indicator;Solenoid valve is provided with connecting pipe between dissolving and the RO device.
  3. 3. city domestic sewage recycling device according to claim 1, it is characterised in that:The backwashing pump goes out One way stop peturn valve is provided with the connecting pipe of the mouth of a river.
  4. 4. city domestic sewage recycling device according to claim 1, it is characterised in that:The plate heat exchanger For vapour-water plate heat exchanger.
  5. 5. city domestic sewage recycling device according to claim 1, it is characterised in that:The self-cleaning filtering Device is high-efficiency fiber filter.
  6. 6. city domestic sewage recycling device according to claim 1, it is characterised in that:In the ultrafiltration apparatus Ultrafiltration membrane be PDVF hollow-fibre membranes, aperture is 0.01~0.1 μm.
CN201720443480.8U 2017-04-25 2017-04-25 A kind of city domestic sewage recycling device Active CN207267828U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720443480.8U CN207267828U (en) 2017-04-25 2017-04-25 A kind of city domestic sewage recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720443480.8U CN207267828U (en) 2017-04-25 2017-04-25 A kind of city domestic sewage recycling device

Publications (1)

Publication Number Publication Date
CN207267828U true CN207267828U (en) 2018-04-24

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110327784A (en) * 2019-05-23 2019-10-15 岳阳林纸股份有限公司 A kind of method for disinfection of cartridge filter and reverse osmosis membrane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110327784A (en) * 2019-05-23 2019-10-15 岳阳林纸股份有限公司 A kind of method for disinfection of cartridge filter and reverse osmosis membrane

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