A kind of method for handling kitchen waste water
Technical field
The present invention relates to a kind of methods for handling kitchen waste water.
Background technology
With the rapid economic development in our country, catering trade, tourist industry also grow up therewith, the relevant issues brought are exactly
Come from the pollution of kitchen waste water in the catering trades such as each hotel, the wastewater flow rate of discharge is increasing, makes food and drink waste water
Pollution becoming serious.Due to the vegetable and animals oils containing higher concentration and a large amount of solid suspensions in the waste water, so making
It becomes an important pollution entering the water.Food and drink waste water has the characteristics of BOD, COD concentration are high, and oil content is more, and discharge capacity is big, together
When due in this kind of waste water noxious material it is relatively fewer, the general unprocessed rich battalion for being just directly discharged to water body, causing water body
Fosterization is oil removing for the main problem in sewage from catering business processing, reduces CODCr and turbidity.The processing of kitchen waste water can not only
It preserves the ecological environment, and the burden at municipal sewage treatment station can be mitigated, there is apparent environmental benefit and economic benefit.
The content of the invention
Technical problems to be solved:The object of the present invention is to provide a kind of methods for handling kitchen waste water, can be effectively
The grease in waste water is removed, it is all fine simultaneously for the removal effect of COD in waste water and BOD.
Technical solution:A kind of method for handling kitchen waste water, comprises the following steps:
(1) anaerobism section sludge is taken to be packed into after being mixed with kitchen waste water in anaerobism column, 2~3h, discharge are precipitated after continuously stirring 5~6h
Base sludge;
(2) biofilm packing is added in anaerobism column, starts the continuum micromeehanics in anaerobism column, after water in column is full, reaction 6~
7h;
(3) water handled well is discharged, measures its index.
Further, the biofilm packing is prepared by following component:50~55g of polystyrene adsorption resin, shellac tree
3~5g of fat, 10~18g of sulfydryl silica gel, 3~7g of anionic cellulose, 2~5g of sepiolite clay, peanut hull biologic charcoal 10~
20g, 2~5g of straw alkali lignin, 1~3g of Soy 11 S Globulin, 0.5~1g of cerous sulfate, 20~30g of absolute ethyl alcohol, preparation side
Method is:
The first step:By lac resin and absolute ethyl alcohol mixed dissolution;
Second step:Add in anionic cellulose, sepiolite clay and peanut hull biologic charcoal, be put into ball milling 2 in planetary ball mill~
4h;
3rd step:Add in residual components, 3~4min of microwave treatment, supersonic oscillations 1h under 750~800W of power;
4th step:After absolute ethyl alcohol volatilization to the greatest extent, it is put into double screw extruder to carry out squeezing out at 240~250 DEG C of temperature and makes
Grain to obtain the final product.
Further, biofilm packing accounts for the 10% of anaerobism column volume in the step (2).
Further, extrusion temperature is 245 DEG C in the 4th step in the preparation method of the biofilm packing.
Advantageous effect:This method can remove effectively the grease in waste water, and the removal simultaneously for COD in waste water and BOD is imitated
Fruit is all fine, and highest removal rate respectively reaches 96.2% and 94.3%.
Specific embodiment
Embodiment 1
A kind of method for handling kitchen waste water, comprises the following steps:
(1) anaerobism section sludge is taken to be packed into after being mixed with kitchen waste water in anaerobism column, precipitates 2h after continuously stirring 5h, discharge bottom is dirty
Mud;
(2) biofilm packing is added in anaerobism column, starts the continuum micromeehanics in anaerobism column, after water in column is full, react 6h,
In, the biofilm packing is prepared by following component:Polystyrene adsorption resin 50g, lac resin 3g, sulfydryl silica gel
10g, anionic cellulose 3g, sepiolite clay 2g, peanut hull biologic charcoal 10g, straw alkali lignin 2g, Soy 11 S Globulin
1g, cerous sulfate 0.5g, absolute ethyl alcohol 20g, preparation method are:
The first step:By lac resin and absolute ethyl alcohol mixed dissolution;
Second step:Anionic cellulose, sepiolite clay and peanut hull biologic charcoal are added in, is put into ball milling 2h in planetary ball mill;
3rd step:Add in residual components, microwave treatment 3min, supersonic oscillations 1h under power 750W;
4th step:After absolute ethyl alcohol volatilization to the greatest extent, it is put into double screw extruder and carries out extruding pelletization i.e. at 240 DEG C of temperature
;
(3) water handled well is discharged, measures its index.
Embodiment 2
A kind of method for handling kitchen waste water, comprises the following steps:
(1) anaerobism section sludge is taken to be packed into after being mixed with kitchen waste water in anaerobism column, 2.5h is precipitated after continuously stirring 5.5h, discharges bottom
Portion's sludge;
(2) biofilm packing is added in anaerobism column, starts the continuum micromeehanics in anaerobism column, after water in column is full, react 6.5h,
Wherein, the biofilm packing is prepared by following component:Polystyrene adsorption resin 52g, lac resin 4g, sulfydryl silica gel
14g, anionic cellulose 5g, sepiolite clay 3g, peanut hull biologic charcoal 15g, straw alkali lignin 3g, Soy 11 S Globulin
2g, cerous sulfate 0.7g, absolute ethyl alcohol 25g, preparation method are:
The first step:By lac resin and absolute ethyl alcohol mixed dissolution;
Second step:Anionic cellulose, sepiolite clay and peanut hull biologic charcoal are added in, is put into ball milling 3h in planetary ball mill;
3rd step:Add in residual components, microwave treatment 3min, supersonic oscillations 1h under power 780W;
4th step:After absolute ethyl alcohol volatilization to the greatest extent, it is put into double screw extruder and carries out extruding pelletization i.e. at 245 DEG C of temperature
;
(3) water handled well is discharged, measures its index.
Embodiment 3
A kind of method for handling kitchen waste water, comprises the following steps:
(1) anaerobism section sludge is taken to be packed into after being mixed with kitchen waste water in anaerobism column, precipitates 3h after continuously stirring 6h, discharge bottom is dirty
Mud;
(2) biofilm packing is added in anaerobism column, starts the continuum micromeehanics in anaerobism column, after water in column is full, react 7h,
In, the biofilm packing is prepared by following component:Polystyrene adsorption resin 55g, lac resin 5g, sulfydryl silica gel
18g, anionic cellulose 7g, sepiolite clay 5g, peanut hull biologic charcoal 20g, straw alkali lignin 5g, Soy 11 S Globulin
3g, cerous sulfate 1g, absolute ethyl alcohol 30g, preparation method are:
The first step:By lac resin and absolute ethyl alcohol mixed dissolution;
Second step:Anionic cellulose, sepiolite clay and peanut hull biologic charcoal are added in, is put into ball milling 4h in planetary ball mill;
3rd step:Add in residual components, microwave treatment 4min, supersonic oscillations 1h under power 800W;
4th step:After absolute ethyl alcohol volatilization to the greatest extent, it is put into double screw extruder and carries out extruding pelletization i.e. at 250 DEG C of temperature
;
(3) water handled well is discharged, measures its index.
Comparative example 1
A kind of method for handling kitchen waste water, comprises the following steps:
(1) biofilm packing is added in anaerobism column, starts the continuum micromeehanics in anaerobism column, after water in column is full, react 6h,
In, the biofilm packing is prepared by following component:Polystyrene adsorption resin 50g, lac resin 3g, sulfydryl silica gel
10g, anionic cellulose 3g, sepiolite clay 2g, peanut hull biologic charcoal 11g, straw alkali lignin 2g, Soy 11 S Globulin
1g, cerous sulfate 0.5g, absolute ethyl alcohol 20g, preparation method are:
The first step:By lac resin and absolute ethyl alcohol mixed dissolution;
Second step:Anionic cellulose, sepiolite clay and peanut hull biologic charcoal are added in, is put into ball milling 2h in planetary ball mill;
3rd step:Add in residual components, microwave treatment 3min, supersonic oscillations 1h under power 750W;
4th step:After absolute ethyl alcohol volatilization to the greatest extent, it is put into double screw extruder and carries out extruding pelletization i.e. at 230 DEG C of temperature
;
(2) water handled well is discharged, measures its index.
Comparative example 2
A kind of method for handling kitchen waste water, comprises the following steps:
(1) anaerobism section sludge is taken to be packed into after being mixed with kitchen waste water in anaerobism column, precipitates 2h after continuously stirring 5h, discharge bottom is dirty
Mud;
(2) start the continuum micromeehanics in anaerobism column, after water in column is full, react 6h;
(3) water handled well is discharged, measures its index.
Table 1
Name of product |
Oil content (mg/L) |
COD removal rates (%) |
BOD removal rates (%) |
Embodiment 1 |
9.64 |
95.7 |
94.1 |
Embodiment 2 |
9.36 |
95.9 |
94.2 |
Embodiment 3 |
9.19 |
96.2 |
94.3 |
Comparative example 1 |
18.35 |
85.3 |
81.9 |
Comparative example 2 |
29.78 |
9.4 |
0.6 |
Note:Oil content is 69.3mg/L in raw wastewater, and COD concentration and BOD concentration are respectively 1212.32mg/L, 1024.68mg/L
The partial properties index of water is seen the above table after the method for the present invention processing, it will be seen that this method can remove effectively
Grease in waste water, all fine simultaneously for the removal effect of COD in waste water and BOD, highest removal rate respectively reaches
96.2% and 94.3%.