CN106430664A - Hotel kitchen garbage oil-water separator - Google Patents
Hotel kitchen garbage oil-water separator Download PDFInfo
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- CN106430664A CN106430664A CN201510476560.9A CN201510476560A CN106430664A CN 106430664 A CN106430664 A CN 106430664A CN 201510476560 A CN201510476560 A CN 201510476560A CN 106430664 A CN106430664 A CN 106430664A
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Abstract
The invention relates to a hotel kitchen garbage oil-water separator of the environmental protection field. According to the distribution pattern and characteristics of grease in kitchen garbage, the device and method provided by the invention is composed of three parts: gravity oil floating, microflotation oil skimming, coarse graining and the like, floating oil is skimmed automatically at the gravity oil separation section, emulsified oil, dispersed oil and the like float through microflotation to realize separation of smaller granular grease and water, after treatment, the two-stage treated oily wastewater is further subjected to a coarse graining process, so that micro grease aggregates into large particle size grease on an oil accumulation material and then floats to be skimmed, thus realizing separation from water. The device can effectively separate grease in sewage and reduce the organic loading of subsequent sewage treatment, at the same time the separated grease can be made into biodiesel, soap raw materials and the like so as to increase the resource recycling efficiency. The method is technically feasible, economical and convenient, can achieve automatic operation, and is not affected by seasonal temperature difference.
Description
Technical field
This is the present invention relates to the waste water fat separator device of the oily-water seperating equipment of field of Environment Protection and method, especially catering industry and method.
Background technology
Urban catering service trade develops rapidly, leads to changing food waste to produce in a large number, contains the sewage of a large amount of high concentration animal and plant fats in rubbish.And such oil-polluted water is different from hydrocarbon-containifirst petroleum waste water, because oils and fatss are through high-temperature process and violent stirring, mixing, its composition in sewage and existence form are complex.To city domestic sewage pipe network, oils and fatss are easily attached on and easily make line clogging on tube wall this kind of direct discharging of waste water, and are difficult to dredge, and to Municipal, administration section causes great burden.Oil wastewater, when follow-up sewage treatment plant is processed, can cause oxygenation difficulty in oxidation pond, and microbial activity is suppressed, and causes to process load reduction, effluent quality is deteriorated.
Upper oil slick larger for particle diameter often can only be separated from water by conventional gravity oil removal method, and Bubble-floating Method removal dissolved oil and other effects is poor, and the method that both is commonly used tends not to high efficiency separation oils and fatss.Some are processed, and processing equipment floor space is big, and equipment investment is big, and processing cost is higher.Some adopt microbial decomposition oils and fatss technology, put into microorganism toward in waste water, and the metabolism using microorganism is cut grease, but because course of reaction is long, produce foul gass after decomposition and affect atmospheric environment, after particularly oils and fatss decompose, cannot recycle, cause the waste of oil resource.
Content of the invention
For solving the above problems, the present invention proposes a kind of kitchen garbage, waste-water oils and fatss integral separation device and method,
The present invention provides a kind of hotel's kitchen waste material rubbish oil water separator being related to field of Environment Protection.This device is made up of pipe-line mixer 1, gravity oil separation tank 2, micro- air supporting skimmer tank 9, oil and water separation bygranulation tank 12 etc..
Pipe-line mixer 1 is connected with gravity oil separation tank 2 bottom, the corrugated plating 3 being 40～60 ° built with inclination angle in oil separation tank 2, gravity oil separation tank 3 top is provided with oil skimmer 4, it is fixed on gravity oil separation tank 3 with fixing bolt 19, oil skimmer 4 is driven by motor 20, and whether it is started and controlled with oil survey meter 5, and gravity oil separation tank 2 bottom is provided with steam pipe 17, steam pipe 17 connects external steam source steam generator 18, equipped with temperature sensor in gravity oil separation tank 2.
Waste water in gravity oil separation tank 2 is flow automatically air supporting skimmer tank 9 in a subtle way by downflow weir 8, and oil skimmer 11 is installed on the top of micro- air supporting oil skimmer, and gas release device 10 is installed in bottom.
The water outlet of micro- air supporting skimmer tank 9 is from inflow coarse tank 12; oil and water separation bygranulation tank 12 includes horizontal tube 13 and vertical tube 15; vertical tube 15 is perpendicular to horizontal tube 12; horizontal tube 12 is located at the middle part of vertical tube 15; riser upper portions are provided with oil skimmer 21; micro- air supporting skimmer tank water outlet flows in the horizontal tube 13 of coarse tank, filled modified polypropylene amide filtrate 14 in horizontal tube 13, filled modified polypropylene 16 in vertical tube 15.
By PLC centralized Control, control node has motor, oil survey meter, temperature sensor, vapour source etc. to system.
The present invention also provide oil-water separation in a kind of kitchen garbage, waste-water method it is characterised in that：
Kitchen garbage, waste-water enters gravity oil separation tank 2 by pipe-line mixer 1, waste water uniformly rises along corrugated plating, upflow velocity is 5～15m/h, gravity oil separation tank height/diameter ratio is between 5: 1～3: 1, particle diameter is more than 10 μm of upper oil slick and dispersed oil is gathered in gravity oil separation tank surface, the electronic oil skimmer 4 that gravity oil separation tank 12 upper end is installed will accumulate in the upper oil slick on gravity oil separation tank surface and dispersed oil is skimmed into oil trap 6, and the oils and fatss in oil trap are from inflow accumulator tank 7.Whether oil skimmer is started and is controlled with oil survey meter 5, when oil survey meter detects surface oil timesharing, starts oil skimmer, and oil skimmer is operated with the speed that 5～25m/ divides, and can adjust rotating speed according to oil content.Gravity oil interceptor bottom is installed steam pipe and is provided thermal source, keeps the temperature between 25～45 DEG C, it is to avoid oil condensation solidification, when exceeding this temperature, voluntarily steam off source.
Waste water after gravity oil separation tank 12 flows into micro- air supporting skimmer tank 9 through downflow weir 8, the gas release device of its bottom discharges the bubble that particle diameter is 0.1～1mm, during bubble floating, oil emulsion, dispersed oil etc. float to liquid surface with bubble, then exclude in oil trap 6 by oil skimmer 11, oil skimmer 11 is also controlled by oil survey meter 5.In air flotation tank, hydraulic detention time is 20～60min, and gas-water ratio is 80～200: 1.
Micro- air supporting skimmer tank water outlet is from the horizontal tube 13 flowing into coarse tank 12, filled modified polypropylene amide filtrate 14 in horizontal tube, compactedness is 60～85%, particle diameter of filter medium 1～10mm, horizontal tube is perpendicular to coarse tank vertical tube 15, and vertical tube is bisected into two parts by horizontal tube, dissolved oil, the oil emulsion that part does not remove, dispersed oil etc. is adsorbed by coarse filtrate, condense into oarse-grained oil film, then enter vertical tube with water (flow) direction, filled modified polypropylene 16 in vertical tube, in vertical tube, compactedness is 45～70%, modified polypropene is in net tubular, a diameter of 3～the 5cm of net cylinder heart, net cylinder overall diameter is 8～10cm.The horizontal flow velocity in waste water ground is 30～100m/h, and vertical flow velocity is 5～15m/h, and in vertical tube, the oil fraction of waste water floats, and upper oil slick is skimmed in oil trap 6 by oil skimmer 21, and the waste water after removing oil flows into water treatment system from the bottom of vertical tube.
Described coarse treatment process is that small particle oils and fatss in kitchen waste water are carried out advanced treating; in the coarse tank of built-in modified polyacrylamide filtrate; less for particle diameter dissolved oil and oil emulsion are condensed into by big particle diameter elaioleucite by the adsorption of filtrate and form oil film; oil film float up to top discharge, and water through bottom discharge outlet to water treatment system.Described coarse filtrate-modified polyacrylamide filtrate, has oleophylic, oil resistant, hydrophobic property, and in horizontal water inlet tube, water outlet direction and fuel-displaced direction are arranged in vertical tube coarse process tank.
The oil-water separation being carried out with apparatus and method of the present invention is good, cost bottom, the oils and fatss separated can be back to chemical plant as the raw material making biodiesel it can also be used to manufacture soap etc., the fat content of kitchen waste water is processed the discharge standard reaching national regulation simultaneously.
Brief description
Fig. 1 is kitchen waste water fat separator device planar structure schematic diagram.
Specific embodiment
Illustrate the application example of this device and method below in conjunction with the accompanying drawings.Xining Qinghai clean god food garbage processes the interval that company limited implements 60m3/d according to this kitchen waste water oils and fatss separation method principle
The processing meanss run, fat content is 50000mg/l, is drawn into gravity oil separation tank (1m × 4m) by water pump, and upflow velocity is 4m/h, and oil skimmer rotating speed is 10m/min, and water outlet grease concentration is 500mg/l；Gravity oil separation tank water outlet enters air supporting skimmer tank (2m × 2m × 1m) in a subtle way, hydraulic detention time 30min through downflow weir, and steam-water ratio is 100: 1, and water outlet grease concentration is 50mg/l；Micro- air supporting skimmer tank water outlet enters oil and water separation bygranulation tank (horizontal tube：1m × 1m, vertical tube：1m × 1m); in the horizontal tube of oil and water separation bygranulation tank tank, the filling rate of modified polyacrylamide is 60%, and in vertical tube, (overall diameter is 8cm, a diameter of 3cm of heart to filled modified polypropylene net cylinder;), oil and water separation bygranulation tank water outlet grease concentration be below 1mg/l.
Ton water process expense is 0.2 yuan, the recyclable 50 kilograms of oils and fatss of water per ton.
Claims (6)
1. a kind of hotel kitchen waste material rubbish oil water separator it is characterised in that：Device is mainly made up of pipe-line mixer (1), gravity oil separation tank (2), micro- air supporting skimmer tank (9), oil and water separation bygranulation tank (12)；Pipe-line mixer (1) is connected with gravity oil separation tank (2) bottom, the corrugated plating (3) being 40～60 ° built with inclination angle in gravity oil separation tank (2), oil separation tank top is provided with oil skimmer (4), and whether it starts and controlled by oil survey meter (5)；Steam pipe (17) is installed in gravity oil separation tank (2) bottom, and steam pipe connects external steam source steam generator (18), and gravity oil separation tank has temperature sensor in (2)；Waste water in gravity oil separation tank passes through downflow weir (8) gravity flow air supporting skimmer tank (9) in a subtle way, and micro- air supporting skimmer tank top is provided with oil skimmer (11), and gas release device (10) is installed in bottom；Oil and water separation bygranulation tank (12) includes horizontal tube (13) and vertical tube (15); vertical tube (15) is perpendicular to horizontal tube (12); riser upper portions are provided with oil skimmer (21); the water outlet of micro- air supporting skimmer tank (9) is from the horizontal tube (13) flowing into oil and water separation bygranulation tank (12); filled modified polypropylene amide filtrate (14) in horizontal tube (13), filled modified polypropylene (16) in vertical tube (15).
2. whether a kind of hotel kitchen waste material rubbish oil water separator, the wherein startup of oil skimmer (4,11,21) are controlled by oil survey meter (5).
3. a kind of hotel kitchen waste material rubbish oil water separator it is characterised in that：Kitchen garbage, waste-water enters gravity oil separation tank (2) by pipe-line mixer (1), waste water uniformly rises along corrugated plating, upflow velocity is 5～15m/h, gravity oil separation tank height/diameter ratio is between 5: 1～3: 1, particle diameter is more than 10 μm of upper oil slick and dispersed oil is gathered in gravity oil separation tank surface, the oils and fatss on described gravity oil separation tank surface are skimmed into oil trap (6) by the oil skimmer that gravity oil separation tank upper end is installed, and the oils and fatss in oil trap flow in accumulator tank (7) certainly；Whether oil skimmer starts and controls with by point survey meter (5), when oil survey meter detects surface oil timesharing, starts oil skimmer, and oil skimmer is operated with the speed that 5～25m/ divides, can be according to oil
Divide content adjustment rotating speed, gravity oil removal pot bottom is installed steam pipe and provided thermal source, keeps the temperature at
Between 25～45 DEG C, it is to avoid oil condensation solidification, when exceeding this temperature, voluntarily steam off source；Waste water after gravity oil separation tank (12) flows into micro- air supporting skimmer tank (9) through downflow weir (8), the gas release device release bubble of its bottom, during bubble floating, oil emulsion, dispersed oil floats to liquid surface with bubble, then exclude in oil trap (6) by oil skimmer (11), micro- air supporting skimmer tank water outlet is from the horizontal tube (13) flowing into coarse tank (12), dissolved oil, the oil emulsion that part does not remove, dispersed oil is adsorbed by filtrate, condense into oarse-grained oil film, then enter vertical tube with water (flow) direction, in vertical tube, the oil fraction of waste water floats, upper oil slick is skimmed in oil trap (6) by oil skimmer (21), waste water after removing oil flows into water treatment system from the bottom of vertical tube.
4. a kind of oil-water separation method of kitchen garbage, waste-water as claimed in claim 2, in wherein said micro- air supporting skimmer tank, hydraulic detention time is 20～60min, and gas-water ratio is the bubble diameter of 80～200: 1, q gas release device release is 0.1～1mm.
5. a kind of oil-water separation method of kitchen garbage, waste-water as claimed in claim 2; wherein in the horizontal retort of oil and water separation bygranulation tank, the compactedness of modified polyacrylamide is 60～85%; particle diameter of filter medium 1～10mm; in vertical tube, the compactedness of modified polypropene is 45～70%; modified polypropene is in net tubular; a diameter of 3～the 5cm of net cylinder heart, net cylinder overall diameter is 8～10cm.
6. a kind of oil-water separation method of kitchen garbage, waste-water as claimed in claim 2, wherein waste water are 30～100m/h through its horizontal flow velocity during oil and water separation bygranulation tank, and vertical flow velocity is 5～15m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476560.9A CN106430664A (en) | 2015-08-06 | 2015-08-06 | Hotel kitchen garbage oil-water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476560.9A CN106430664A (en) | 2015-08-06 | 2015-08-06 | Hotel kitchen garbage oil-water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106430664A true CN106430664A (en) | 2017-02-22 |
Family
ID=58092132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476560.9A Withdrawn CN106430664A (en) | 2015-08-06 | 2015-08-06 | Hotel kitchen garbage oil-water separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106430664A (en) |
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2015
- 2015-08-06 CN CN201510476560.9A patent/CN106430664A/en not_active Withdrawn
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170222 |
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| WW01 | Invention patent application withdrawn after publication |