CN206751492U - A kind of device for improving biological deferrization manganese efficiency - Google Patents
A kind of device for improving biological deferrization manganese efficiency Download PDFInfo
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- CN206751492U CN206751492U CN201720321960.7U CN201720321960U CN206751492U CN 206751492 U CN206751492 U CN 206751492U CN 201720321960 U CN201720321960 U CN 201720321960U CN 206751492 U CN206751492 U CN 206751492U
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Abstract
The utility model discloses a kind of device for improving biological deferrization manganese efficiency, the device has the filter column of relatively low thickness of filter bed, use circulation stop formula process for fixation that the dominant bacteria of iron-manganese oxide is carried out into bio-film colonization with connect bacterium amount of the liquid ratio slightly larger than filtrate porosity, filter column is filtered after being cultivated；Its chitosan fluid dressing maturation time is 30 days, and thickness of filter bed can be reduced to 70cm, and maximum rate of filtering can be promoted to 12m/h.The device can shorten filtering layer maturation time, improve the efficiency of biologic filter, can provide technological service and theoretical direction for engineering practice, further promote the extensive use of bioanalysis removing of iron and manganese technology.
Description
Technical field
It the utility model is related to a kind of underground water treating device and method, more particularly to a kind of raising biological deferrization manganese efficiency
Device, belong to water-treatment technology field.
Background technology
Iron manganese content is high in underground water, causes that water body chroma is big, has iron taste, is brought greatly not to people's production and living
Just, or even on health also there is certain influence.It is the practical problem for having to solve to remove the ferrimanganic in underground water, therefore ground
Lower water removing of iron and manganese technology is always the focus that experts and scholars study.At present, removing of iron and manganese method mainly have chemical contact oxidizing process,
Chlorination oxidation ultrafiltration, Fe3+Soak charcoal absorption filtration method, bioactive carbon adsorption filtration method, biological quartz sand filtering layer drop
Filter method etc..Wherein bioanalysis removing of iron and manganese technical matters is simple, need not add chemical agent, energy consumption low, efficiency high, its actual effect
It has been be widely recognized that, and be applied to production practices.But filtering layer bio-film colonization method is answered in biological deferrization manganese current technology
Miscellaneous poorly efficient, chitosan fluid dressing maturation time is longer, and equipment volume is big, and efficiency still has the space of lifting.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of device for improving biological deferrization manganese efficiency, use
The device carries out removing of iron and manganese to underground water, can effectively improve the efficiency of biological deferrization manganese.
The technical solution of the utility model is：
The utility model discloses a kind of device for improving biological deferrization manganese efficiency, the device includes connecting with raw water water inlet pipe
Logical drop water aeration pond, the drop in the drop water aeration pond is highly 40~50cm, and the drop water aeration pond is by water pipe with catchmenting
Groove is connected, and the water leg is connected by water pipe through the first water pump with the water inlet of a filter column, and the bottom of the filter column offers water outlet
Mouthful, the water outlet is communicated with outlet conduit, provided with backwash inlet channel, the backwash inlet channel through the second water pump with
Delivery port connects；The bottom of the filter column is equipped with the bed course for 15~20cm thickness that particle diameter is formed for 0.6~1.2cm cobbles, should
The top of bed course is equipped with particle diameter as filtering layer thick 65~75cm that 0.6~1.6mm manganese sand filtering material is formed, wherein manganese sand filtering material
Surface seeding has iron-oxidizing bacteria kind and manganese oxidizing bacteria kind.
Its further technical scheme is：
The drop in the drop water aeration pond is highly 40cm, and the thickness of the bed course is 15cm, and the thickness of the filtering layer is
70cm。
Be spaced apart from up to down in the side wall of the filter column and be provided with several sample taps, between several sample taps between
13~18cm is divided into, and the sample tap of the top is apart from 10~15cm of over top of filtering layer.
Overfall is further opened with the upper end side wall of the filter column, the position of the overfall is less than the water inlet and height of filter column
Sample tap in the top.
Place is provided with flowmeter between delivery port and the second water pump on the backwash inlet channel.
The invention also discloses a kind of method for improving biological deferrization manganese efficiency, this method comprises the steps：
(a) device is built：Raw water water inlet pipe is connected with drop height for 40~50cm drop water aeration pond, then will
Drop water aeration pond is connected by water pipe with water leg, the water inlet of the first water pump is connected by water pipe with water leg, by first
The delivery port of water pump is connected by water pipe with the water inlet of filter column；In the bottom of filter column, laying particle diameter is 0.6~1.2cm pebble shapes
Into the thick bed courses of 15~20cm, be what 0.6~1.6mm manganese sand filtering material was formed in the top laying particle diameter of the bed course of the bed course
Filtering layer thick 65~75cm；Water outlet in filter column bottom connects an exhalant canal, and backwash inlet channel is gone out with this
The mouth of a river is connected, and the second water pump and flowmeter are set on the backwash inlet channel；
(b) bio-film colonization is carried out to manganese sand filtering material：Isolated and purified from ripe manganese sand surface and obtain iron-oxidizing bacteria kind and manganese oxygen
Change strain, bacterium solution then is made through expanding to cultivate in the strain of acquisition, the obtained bacterium solution is slightly larger than manganese sand according to liquid ratio
Filtrate porosity connects bacterium amount by bacterium solution circulation inoculation in manganese sand filtering material surface, inoculation circulation 7~8 days, daily 2~3 times, every time
Residence time is 8~12 hours；
(c) cultivating filter columns：After bio-film colonization terminates, after being aerated by drop water aeration pond in water leg is put aside
Underground water raw water is initially passed through in filter column with 1~1.2m/h slow rate, gradually slightly carried later by the effect of the first water pump
Filtering velocity is risen, the filtering velocity before manganese sand filtering material maturation wherein in filtering layer is not higher than 3m/h, and its back washing strength is 10~11L/ (m2·
S), 1.5~2.0min of time, cycle are 5~6 days；Manganese sand filtering material culture after running 28~30 days altogether in filter column is ripe；
(d) the biological deferrization manganese of underground water：The underground after being aerated by drop water aeration pond in water leg will be put aside
Water raw water is by the effect of the first water pump, and with 6~12m/h speed by filter column, its back washing strength is 12~13L/ (m2·
S), 2.5~3.0min of time, cycle are 3~4 days.
Its further technical scheme is：
The drop of drop water aeration pond described in step (a) is highly 40cm, and the thickness of the bed course is 15cm, the filtering layer
Thickness be 70cm.
Liquid ratio described in step (b) is VBacterium solution：VFiltrate=1:3~4.
The slow rate that the initial speed that underground water raw water is passed through filter column in step (c) is 1m/h is passed through in filter column, is backwashed
Intensity is 10L/ (m2S), time 2.0min, cycle are 5 days；Manganese sand filtering material culture after running 30 days altogether in filter column is ripe.
Back washing strength described in step (d) is 12L/ (m2S), time 3.0min.
Relative to prior art, advantageous effects of the present utility model are：
The device has the filter column of relatively low thickness of filter bed, using circulation stop formula process for fixation by the dominant bacteria of iron-manganese oxide
Kind carries out bio-film colonization with the bacterium amount that connects of the liquid ratio slightly larger than filtrate porosity, and filter column is filtered after being cultivated；Its biology
Filtering layer maturation time is 30 days, and to ferrimanganic fluctuation of concentration strong adaptability, thickness of filter bed can be reduced to 70cm, and maximum rate of filtering can be lifted
To 12m/h；At filtering layer 10cm, iron is trace in water outlet, and manganese content is reduced to below 0.05mg/L at filtering layer 55cm, efficiently
Demanganization band is between 25~40cm of filtering layer；Work as Fe2+When concentration is more than 1.5mg/L, there is the dissolution phenomenon of manganese, reason is Fe2+With
Manganese sand (MnO2) redox reaction occurs；DO consumption actual value is less than theoretical value, and biologic filter removing of iron and manganese is not required to aeration of being eager to excel；
During removing of iron and manganese, water body ORP is constantly raised, and when ORP is increased to 349mV, iron is removed；When ORP is increased to 422mV, manganese
It is removed.The apparatus and method can shorten filtering layer maturation time, improve the efficiency of biologic filter, can be provided for engineering practice
Technological service and theoretical direction, further promote the extensive use of bioanalysis removing of iron and manganese technology.
Brief description of the drawings
Fig. 1 is the structural representation of device described in the utility model；
Fig. 2 is the utility model specific embodiment water outlet Fe2+、Mn2+Changes of contents figure；
Fig. 3 is the utility model specific embodiment water outlet DO, ORP variation diagram；
Fig. 4 is the removal effect figure that the utility model specific embodiment connects iron before and after bacterium；
Fig. 5 is the removal effect figure that the utility model specific embodiment connects manganese before and after bacterium；
Wherein：
1- drop water aerations pond；2- water legs；
The water pumps of 3- first；4- filter columns；
The water inlet of 5- filter columns；The delivery port of 6- filter columns；
7- outlet conduits；8- backwashes inlet channel；
The water pumps of 9- second；10- bed courses；
11- filtering layers；12- sample taps；
13- overfalls；14- flowmeters.
Embodiment
In order to better understand technological means of the present utility model, and can be practiced according to the content of specification,
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail, following examples are used
In explanation the utility model, but it is not limited to the scope of the utility model.
The apparatus structure of raising biological deferrization manganese efficiency employed in this specific embodiment is referring to shown in accompanying drawing 1.The dress
Put middle aeration and use drop water aeration mode, be provided with the drop water aeration pond 1 connected with raw water water inlet pipe, the drop in the apparatus
The drop of aeration tank is highly 40cm.Drop water aeration pond is connected by water pipe with water leg 2, the water level residing for water leg 2 is low
In drop water aeration pond 1, water leg 2 is connected with the water inlet of the first water pump 3 by water pipe, then by water pipe by the first water pump 3
Delivery port connected with the water inlet 5 of filter column 4.The diameter of filter column 4 is arranged to 10cm, a height of 120cm in the device；With particle diameter
0.6~1.2cm cobble is layed in the bottom of filter column 4, bed course thickness 15cm for bed course 10；With 0.6~1.6mm of particle diameter Guangxi
Mashan manganese sand is that the top of filtrate laying bed course 10 forms filtering layer 11,11 thick 70cm of the filtering layer.In filter column in this specific embodiment
Side wall on be spaced apart be provided with 5 sample taps from up to down, number consecutively 1#, 2#, 3#, 4#, 5#, connected two sample taps it
Between, so can be in diverse location apart from the over top 10cm of filtering layer 11 at intervals of 15cm, the sample tap 1# of the top
Sample tap is sampled to determine the ferrimanganic concentration at different filtering layers in water outlet.In this specific embodiment in the upper end side wall of filter column
Overfall is further opened with, the position of the overfall for the water inlet less than filter column but is higher than 1# sample taps.In the upper end side of filter column 4
Overfall 13, water inlet 5 of the position less than filter column of the overfall and the 1# sample taps higher than the top are offered on wall.Filter column
4 bottom offers delivery port 6, and outlet conduit 7 is communicated with delivery port 6, can be set on outlet conduit according to being actually needed
Flowmeter and valve.In addition backwash inlet channel 8 is also communicated with delivery port 6, the backwash inlet channel 8 is provided with the
Two water pumps 9, water after filter is extracted by the second water pump 9, and backwashed on inlet channel 8 between the water pump 9 of delivery port 6 and second
Place is provided with flowmeter 14 and the valve that is arranged as required to, and wherein valve is closer to the one end of delivery port 6.
After the building of finishing device, bio-film colonization is carried out to the manganese sand filtering material in filter column 4.It is specially：From ripe manganese sand
It is state of the art that surface, which isolates and purifies and obtains iron-oxidizing bacteria kind and manganese oxidizing bacteria kind, the method isolated and purified, herein
Repeat no more, high concentration, high activity bacterium solution then is made through expanding to cultivate in the strain of acquisition, by the obtained bacterium solution according to liquid
Material compares VBacterium solution：VFiltrate=1:3 (being slightly larger than manganese sand filtering material porosity) connect bacterium amount by bacterium solution circulation inoculation in manganese sand filtering material surface, often
Its circulation 2 times, each residence time are 12 hours, inoculation circulation 7 days, because strain growth breeding is most fast in this 7 days.
Regulation culture and operational factor, the initially underground after savings being aerated by drop water aeration pond 1 in water leg 2
Water raw water is passed through filter column with 1m/h slow filtering velocity, later gradual small elevation filtering velocity.Filtering velocity most very much not surpasses before chitosan fluid dressing maturation
3m/h is crossed, back washing strength is 10L/ (m2S), time 2min, cycle 5d；Back washing strength is after chitosan fluid dressing maturation
12L/(m2S), time 3min, cycle are 3~4d.The operating condition of filter column is controlled under 6,8,10,12m/h, is fetched water per 24h
Sample measure iron, the concentration of manganese, investigate the influence to removing of iron and manganese effect of iron manganese content, filtering velocity and thickness of filter bed, at the same investigate DO,
ORP change.
The experimental result of this specific embodiment is referring to following.
First, the quick startup optimization of biologic filter
The timeliness of biologic filter is improved, its key is that can chitosan fluid dressing maturation time shorten.Filter column is after water flowing, filter
The filtrate on top gradually becomes yellow at layer 10cm, and bottom gradually becomes black, and this is due to after filter column elder generation iron removaling caused by demanganization.
Counted by Bacteria Culture, the bacterial population exponentially of filter material surface attachment increases.After filtering layer bacterization biofilm culture 30d,
The ferrimanganic concentration of measure water outlet is all trace and stably, illustrates that now filtering layer is ripe.With it is of the prior art ripe when
Between 60~90d compare, using above-mentioned bio-film colonization method, connect bacterium amount and culture parameters, chitosan fluid dressing maturation time substantially shortens,
It is ageing to be improved.
2nd, Fe2+Influence of the concentration to demanganization effect
The dissolution phenomenon of the manganese occurred at filtering layer 10cm, analysis reason is probably by Fe2+With manganese sand (MnO2) change
Learn caused by reacting.This reaction again may be with Fe2+The height of concentration is relevant.In water inlet Fe2+Concentration is respectively 0,0.5,1.0,
1.5th, in the case that 2.0mg/L, other conditions such as pH, DO are as consistent as possible, the Mn in different filtering layer depth water outlets is determined2+It is dense
Degree, as a result as shown in table 1.
1 different Fe of table2+Along the demanganization situation of filtering layer depth under concentration
As shown in Table 1, as Fe in water inlet2+During concentration height (being more than 1.5mg/L), manganese content is higher than in water outlet at filtering layer 10cm
There is the dissolution phenomenon of manganese in water inlet, and works as Fe2+Concentration is not in then this phenomenon when low (being less than 1.0mg/L).This explanation
The dissolution phenomenon of manganese is really and Fe2+The height of concentration is relevant.Work as Fe2+Can be rapidly under biocatalysis during low concentration
Aoxidized, have little time and MnO by dissolved oxygen2Reaction, so being not in the dissolution phenomenon of manganese.Only work as Fe2+When concentration is high, Fe2+Quilt
Dissolved oxygen just has the Fe of part while oxidation2+With manganese sand surface MnO2Generation redox reaction, cause the dissolution phenomenon of manganese.
3rd, during removing of iron and manganese DO, ORP change
In inlet flow-patterm 6.70,12 DEG C of water temperature, Fe2+3.02mg/L、Mn2+Under 2.22mg/L, filtering velocity 6m/h, determine respectively not
With the iron manganese content of water outlet, DO and ORP at filtering layer, Fig. 2, Fig. 3 are as a result seen.
Bioanalysis removing of iron and manganese is a process of biological cell membrane surface enzymatic oxidation low price reproducibility ferrimanganic.No matter cross
How complicated journey is, energy and electron transmission What gives, but electron acceptor is finally the dissolved oxygen in water.Kept according to electron exchange
Perseverance calculates theoretical oxygen consumption value, has following formula establishment：
c(O2)=0.143c (Fe2+)+0.29c(Mn2+)
When water inlet contains Fe2+3.02mg/L, containing Mn2+During 2.22mg/L, the theoretical oxygen consumption of iron-manganese oxide is calculated by above formula
It is worth for 1.08mg/L.From Fig. 2, Fig. 3, after chitosan fluid dressing removes complete ferrimanganic, actual dissolved oxygen content is reduced
0.75mg/L, oxygen consumption actual value are less than theoretical value, and analysis is probably due to part Mn2+It is adsorbed on bacterium surface and forms absorption
With desorbing dynamic process, adsorbance, which is more than desorption quantity, causes actual oxygen demand to be less than theoretical value.It can also be seen that from Fig. 3
During ferrimanganic is removed, water body ORP is constantly raised.Because Fe2+、Mn2+Fe is oxidized to respectively3+、Mn4+, [Fe3 +]/[Fe2+] and [Mn4+]/[Mn2+] value it is increasing, so ORP is constantly raised.When ORP is increased to 349mV from 278mV,
Fe2+It is removed；When ORP is increased to 422mV from 349mV, Mn2+It is removed.It is possible thereby to iron is predicted according to ORP change
The removal situation of manganese.
4th, filtering layer connects the removal effect of ferrimanganic before and after bacterium
To determine whether the removing of iron and manganese in manganese sand filter blanket filtration test is that bio-catalytical oxidation is playing a major role, investigate
Manganese sand filter blanket is connect before bacterium with connecing the removing of iron and manganese effect after bacterium maturation.In the case of other conditions are as consistent as possible, different filters are determined
Fe in water outlet at layer2+、Mn2+Concentration, as a result see Fig. 4 and Fig. 5.
As shown in Figure 4, for iron removaling, connect after bacterium that iron-holder is dropped to by 4.76mg/L of intaking in water at filtering layer 10cm
Trace, clearance nearly 100%；And before connecing bacterium, in filtering layer same position, removal effect is only 11%, during at 25cm filtering layers still
There is Fe2+Detection.As shown in Figure 5, for demanganization, connect after bacterium that manganese content is declined by 2.43mg/L of intaking in water at 55cm filtering layers
For trace, clearance 100%；And before connecing bacterium, manganese content is still 1.63mg/L during at 55cm filtering layers, and now clearance is only
39.6%.After filtering layer connects bacterium maturation as can be seen here, its removing of iron and manganese positive effect is better than connect bacterium before, this explanation ferrimanganic oxidation it is main
It is to be that bio-catalytical oxidation acts on.
It specify that in above-mentioned experimental result and suitably connect bacterium amount, culture and operational factor are further optimized, chitosan fluid dressing
Maturation time foreshortens to 30d, and to high ferrimanganic concentration and high filtering velocity strong adaptability, thickness of filter bed can be reduced to 70cm, maximum rate of filtering
12m/h can be promoted to；Specify that the rule that ferrimanganic removes, be removed along filtering layer depth iron between 0~10cm, manganese 10~
It is removed between 55cm, efficient demanganization band is at 25~40cm of filtering layer；Fe2+When concentration is more than 1.5mg/L, exist between iron and manganese
Redox reaction, cause the dissolution phenomenon of manganese；DO consumption actual value is less than theoretical value in experiment, and bioanalysis removing of iron and manganese is not required to
It is eager to excel and is aerated.During removing of iron and manganese, ORP is constantly raised.When ORP is increased to 349mV, iron is removed；When ORP is increased to 422mV
When, manganese is removed.
Described above is only preferred embodiment of the present utility model, is not limited to the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out some improvement and modification, these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (5)
- A kind of 1. device for improving biological deferrization manganese efficiency, it is characterised in that：Including the drop water aeration connected with raw water water inlet pipe Pond (1), the drop in the drop water aeration pond is highly 40~50cm, and the drop water aeration pond is connected by water pipe with water leg (2), The water leg is connected by water pipe through the first water pump (3) with the water inlet (5) of a filter column (4), and the bottom of the filter column offers out The mouth of a river (6), the water outlet are communicated with outlet conduit (7), provided with backwash inlet channel (8), the backwash inlet channel Connected through the second water pump (9) with delivery port (6)；The bottom of the filter column (4) is equipped with particle diameter and formed for 0.6~1.2cm cobbles The thick bed courses (10) of 15~20cm, the top of the bed course be equipped with particle diameter for 0.6~1.6mm manganese sand filtering material formed 65~ Filtering layer (11) thick 75cm, the surface seeding of wherein manganese sand filtering material have iron-oxidizing bacteria kind and manganese oxidizing bacteria kind.
- 2. the device according to claim 1 for improving biological deferrization manganese efficiency, it is characterised in that：The drop water aeration pond (1) drop is highly 40cm, and the thickness of the bed course (10) is 15cm, and the thickness of the filtering layer (11) is 70cm.
- 3. the device according to claim 1 for improving biological deferrization manganese efficiency, it is characterised in that：The side of the filter column (4) Be spaced apart from up to down on wall and be provided with several sample taps (12), between several sample taps at intervals of 13~18cm, and Over top 10~15cm of the sample tap (12) of the top apart from filtering layer (11).
- 4. the device according to claim 3 for improving biological deferrization manganese efficiency, it is characterised in that：The filter column (4) it is upper Overfall (13) is further opened with the wall of side, the position of the overfall is less than the water inlet (5) of filter column and taking higher than the top Sample mouth.
- 5. the device according to claim 1 for improving biological deferrization manganese efficiency, it is characterised in that：The backwash water inlet pipe Place is provided with flowmeter (14) between delivery port (6) and the second water pump (9) on road (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720321960.7U CN206751492U (en) | 2017-03-29 | 2017-03-29 | A kind of device for improving biological deferrization manganese efficiency |
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|---|---|---|---|
| CN201720321960.7U CN206751492U (en) | 2017-03-29 | 2017-03-29 | A kind of device for improving biological deferrization manganese efficiency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745665A (en) * | 2017-03-29 | 2017-05-31 | 珠海京工检测技术有限公司 | A kind of device and method for improving biological deferrization manganese efficiency |
| CN108423839A (en) * | 2018-02-11 | 2018-08-21 | 北京理工大学珠海学院 | A kind of method of chitosan fluid dressing removing of iron and manganese |
-
2017
- 2017-03-29 CN CN201720321960.7U patent/CN206751492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745665A (en) * | 2017-03-29 | 2017-05-31 | 珠海京工检测技术有限公司 | A kind of device and method for improving biological deferrization manganese efficiency |
| CN108423839A (en) * | 2018-02-11 | 2018-08-21 | 北京理工大学珠海学院 | A kind of method of chitosan fluid dressing removing of iron and manganese |
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