CN106810034A - Earthworm removes the device and minimizing technology of Heavy Metals in Sludge - Google Patents
Earthworm removes the device and minimizing technology of Heavy Metals in Sludge Download PDFInfo
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- CN106810034A CN106810034A CN201710133412.6A CN201710133412A CN106810034A CN 106810034 A CN106810034 A CN 106810034A CN 201710133412 A CN201710133412 A CN 201710133412A CN 106810034 A CN106810034 A CN 106810034A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention relates to the removal device and method of Heavy Metals in Sludge, particularly a kind of earthworm removes the device and minimizing technology of Heavy Metals in Sludge.Be provided with dividing plate between first process chamber and second processing room, dividing plate top is provided with through hole, dividing plate top be provided with can pull thin plate, bottom sludge blanket, earthworm layer and upper strata sludge blanket are disposed with the first process chamber, earthworm layer is blended with culture medium；Sludge is placed in the first process chamber first, the cloth for completing the first process chamber is postponed, and second processing room is arranged；Cover lucifuge insulation case lid；Treat；When Sludge Surface has piled with wormcast, top layer wormcast is struck off；First process chamber earthworm all after transfer, is processed second processing room：Lucifuge insulation case lid is covered, treats that top layer wormcast strikes off, two process chamber reciprocation cycles after Heavy Metals in Sludge is up to standard, change untreated sludge.Heavy metals removal continuous prodution can be shortened process cycle, the sludge that can have conveniently processed is recycled.
Description
Technical field
The present invention relates to the removal device and method of Heavy Metals in Sludge, particularly a kind of earthworm removal Heavy Metals in Sludge
Device and minimizing technology.
Background technology
In recent years, resource recycling turns into the hot issue of social sustainable development, big to what is contained in municipal sludge
The Collection utilization of the fertilizer elements such as amount N, P, K and organic matter has long-range development prospect.And it is same in the engineering of sewage disposal
Sample is had during the heavy metal ion such as more Cu, Zn remain in sludge, and its direct recycling to sludge causes obstruction.
Found in constantly studying, more satisfactory removal effect can be reached using chemical method, but due to the addition of chemical reagent
So that processing cost can be in any more, and side reaction of the different chemical treatment technologies to nutrient is indefinite, is also easy to cause
Secondary pollution, realizes that extensive treatment Shang Yaowu can the phase；Bioanalysis goes removing heavy metals easy to operate, and clearance is high, economic benefit
Substantially, especially the hotter earthworm biological decomposition technology of research not only can be with enriching heavy metal recently, can also be by digestive system
Stabile fertilizer, decomposing organic matter eliminates part germ, removes stink, improves sludge edaphic condition.By earthworm life habit system
About, earthworm go the method for removing heavy metals to exist the cycle is long, the uneven problem of processing region.
The content of the invention
Earthworm active is improved it is an object of the invention to provide one kind, shortens a huge sum of money in the earthworm removal sludge of process cycle
The device and minimizing technology of category.
Device of the invention is adopted the following technical scheme that：
A kind of earthworm removes the device of Heavy Metals in Sludge, including the first process chamber for being set up in parallel and second processing room, and first
Be provided with dividing plate between process chamber and second processing room, dividing plate top is provided with through hole, dividing plate top be provided with can pull it is thin
Plate, the first chamber bottom is provided with the first osculum and the first feed pipe, and second processing room bottom is provided with the second osculum
With the second drainpipe, the first process chamber and second processing room top are incubated case lid equipped with lucifuge；Set gradually in first process chamber
There are bottom sludge blanket, earthworm layer and upper strata sludge blanket, earthworm layer is blended with culture medium；Second processing is disposed with bottom in room
Sludge blanket, culture medium layer and upper strata sludge blanket, culture medium layer are blended with attractant；Upper strata sludge distance in first process chamber
One 10 to 20 centimetres of process chamber top, the upper strata sludge cloth in the upper strata sludge arrangement form of second processing room and the first process chamber
Put mode identical.
Using the device of above-mentioned technical proposal, compared with prior art, the growth conditions that can improve earthworm improves work
Property, expand scope of activities, promote the accumulation rate of heavy metal.
The preferred scheme of device is：
Dividing plate top be located at through hole side be provided with can pull thin plate, the both sides of dividing plate are respectively provided with locating piece, locating piece
On be provided with detent, detent built with can pull thin plate, can be provided with pull thin plate and match with detent
Convex shoulder, can the top of pull thin plate be provided with positioning wedged block, positioning wedged block is stuck in the upper end of detent.
The first water supply hole is placed with first feed pipe, the second water supply hole is placed with the second feed pipe.
Serpentine-like structure is arranged in the first process chamber and second processing room respectively for first feed pipe and the second feed pipe.
The top of the first process chamber and second processing room is respectively provided with lighting device.
The bottom of the first process chamber and second processing room is respectively provided with feet, bearing metal protection network in feet.
The method of the present invention use technical scheme be：
The method that device removes earthworm, is carried out as follows：
1）Sludge is placed in the first process chamber first, uniform inoculation earthworm, places culture medium, so in earthworm layer on sludge blanket
Afterwards, sludge is sprinkled again in earthworm layer, upper strata sludge thickness is kept for 10 to 12 centimetres, and uniform spreading keeps nature porosity, upper strata
Sludge should ensure that Sludge Surface has 10 to 20 centimetres of distance with the first process chamber top edges；
2）The cloth for completing the first process chamber is postponed, and second processing room is arranged：Bottom sludge is first arranged, on bottom sludge
Attractant is blended while spreading culture medium；Then, sludge blanket is arranged again in culture medium layer, upper strata sludge thickness keeps 10 to 12
Centimetre, uniform spreading keeps nature porosity, upper strata sludge to should ensure that Sludge Surface has 10 with second processing room top edges
To 20 centimetres of distance；
3）Lucifuge insulation case lid is covered, and the temperature of routine observation earthworm active and the first process chamber, moisture and pH value are extraneous
Condition, keeps the stable condition of suitable earthworm growth and breeding, while being sampled survey to sludge total heavy metal amount and single earthworm
Fixed, observation index content and earthworm breed situation；
4）When Sludge Surface has piled with wormcast, top layer wormcast is struck off, if detection Heavy Metal Level In Sludge is below standard,
Sludge is put back to after smashing to pieces；Open lighting device, and extract centre can pull thin plate, protect the first process chamber and second processing room
Hold connected state；Then open water pump be slowly injected into water to the first process chamber, it is ensured that water level reach dividing plate bottommost through hole with
It is lower 1 to 2 centimetre, you can to switch off the pump；
5）After all entering second processing room by the through hole on dividing plate Deng earthworm, at the same time, to sludge in the first process chamber
Uniformly turn over and smash, it manually be transferred to second processing room if finding still to have remaining earthworm, can pull thin plate turn back to, resistance
Disconnected first process chamber and second processing room, then open the first chamber bottom osculum, and the water control in the first process chamber is done；
If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, by step 2）Cloth is carried out to the first process chamber
Put：The new untreated sludge of bottom, training agent base and attractant are inserted, upper strata covers new untreated sludge；If below standard, at first
Reason room uniformly turn over and smashes, then add earthworm culture medium and attractant；
6）First process chamber earthworm all after transfer, is handled as follows to second processing room：
6-1）Lucifuge insulation case lid is covered, and outside the temperature of routine observation earthworm active and second processing room, moisture and pH value
Boundary's condition, keeps the stable condition of suitable earthworm growth and breeding, while being sampled to sludge total heavy metal amount and single earthworm
Determine, observation index content and earthworm breed situation；
6-2）When Sludge Surface has piled with wormcast, top layer wormcast is struck off, if detection Heavy Metal Level In Sludge does not reach
Mark, sludge is put back to after smashing to pieces；Open lighting device, and extract centre can pull thin plate, make the first process chamber and second processing
Room keeps connected state；Then open water pump and be slowly injected into water to second processing room, it is ensured that water level reaches dividing plate bottommost insertion
1 to 2 centimetre below hole, you can switch off the pump；
6-3）After all entering the first process chamber by the through hole on dividing plate Deng earthworm, at the same time, to dirty in second processing room
Mud uniformly turn over and smash, and it is manually transferred into the first process chamber if finding still to have remaining earthworm, can pull thin plate turn back to,
The first process chamber and second processing room are blocked, second processing room bottom drain holes is then opened, by the water control in second processing room
It is dry；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, by step 2）Second processing room is carried out
Arrangement：Insert bottom sludge, culture medium and the attractant of new untreated layer, the untreated sludge in new upper strata；If below standard,
Then add earthworm culture medium and attractant；In this way, two process chamber reciprocation cycles, after Heavy Metals in Sludge is up to standard, change not
Treatment sludge.
The processing method of above-mentioned technical proposal, because earthworm is placed in circular treatment in two process chambers, earthworm is entered by water
Row is driven, and the effect for passing through attractant, realizes the fanout free region transfer of earthworm, by increasing capacitance it is possible to increase activity of the earthworm in sludge,
Improve the efficiency of enriching heavy metal；This processing method can be used in the continuous prodution of heavy metals removal, shorten process cycle, together
When the sludge that can conveniently process recycle.
The preferred scheme of processing method is：
Step 4）In top layer earthworm excrement, if detection is up to standard, be can be directly used for after smashing to pieces fertilising, if detection after heavy metal not
It is up to standard, put back to after smashing to pieces.
15 centimetres of bottom sludge thickness in first process chamber and second processing room, earthworm layer and training in the first process chamber
Support 5 centimetres of the mixed layer thickness of base, 10 centimetres of upper strata sludge thickness.
Attractant uses carbohydrate essence.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is can pull thin plate and partition plate connecting structure schematic diagram.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the B direction views of Fig. 2.
Fig. 5 is the arrangement schematic diagram in two process chambers.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment describe in detail the present invention：
In the present embodiment, the first process chamber 1, the first osculum 2, the first feed pipe 3, the second feed pipe 4, the second osculum 5,
Two process chambers 6, dividing plate 7, through hole 8 can pull thin plate 9, lighting device 10, insulation case lid 11, feet 12, Chain Link Fence
13,
First process chamber 1 and both the concordant settings side by side of second processing room 6,6 are set between the first process chamber 1 and second processing room
There is dividing plate 7, dividing plate 7 blocks the first process chamber 1 and second processing room 2 completely；The top of dividing plate 7 is provided with uniform through hole 8,
Through hole 8 is arranged in several rows ordered series of numbers, and uniform through hole 8 occupies about the position of the top half of dividing plate 7.
The top of dividing plate 7 be located at through hole 8 side be provided with can pull thin plate 9, can the one side of pull thin plate 9 be close to dividing plate
7 one side is set, and the both sides of dividing plate 7 are respectively provided with locating piece 701, and detent 702 is provided with locating piece 701, is positioned recessed
Groove 702 built with can pull thin plate 9, the convex shoulder 902 matched with detent 702 can be provided with pull thin plate 9, can pull
The top of thin plate 9 is provided with positioning wedged block 901, and positioning wedged block 901 is stuck in the upper end of detent 701.
The bottom high of locating piece 701 is less than the upper tip edge of dividing plate 7, after positioning wedged block 901 is placed on locating piece 901, with
The upper top of dividing plate 7 connects edge flush.
The bottom of first process chamber 1 is provided with the first osculum 2 and the first feed pipe 3, and the bottom of the first osculum 2 is equipped with the
One blocks, and has been evenly arranged the first water supply hole on the first feed pipe 3, and the first feed pipe 3 is tortuous or serpentine configuration is arranged in
The bottom of first process chamber 3, one end of the first feed pipe 3 is stretched out the outside of the first process chamber 1 and is connected with the first supply-water pump.
The bottom of second processing room 6 is provided with the second osculum 6 and the second feed pipe 4, and the bottom of the second osculum 5 is equipped with the
Two block, and have been evenly arranged the second water supply hole on the second feed pipe 4, and the second feed pipe 4 is tortuous or serpentine configuration is arranged in
The bottom of second processing room 6, one end of the second feed pipe 4 is stretched out the outside of second processing room 6 and is connected with the second supply-water pump.
Due to the first process chamber 1 and second processing room 6, both are concordant side by side is set, therefore, both top is equipped with same
Individual lucifuge is incubated case lid 11, and the insulation case lid 11 is breathed freely light tight；Top in first process chamber 1 and second processing room 6（On four sides
Inwall on be respectively provided with lighting device 10）Position close to insulation case lid 11 is respectively provided with lighting device 10；Lighting device 10
Can be that, in order to prevent during primary vaccination earthworm, earthworm repels new environment and climbs out of device using small bulb etc.
Four corners bottom of the first process chamber 1 and second processing room 2 is respectively provided with square feet 12, and square backing plate is used
Four prisms cylinder, bearing metal protection network 13 in feet 12, the effect of Chain Link Fence 13 is to protect the first feed pipe 3 and with the
The external part of two feed pipes 4 and the base plate to two process chambers play supporting role；Chain Link Fence 13 and two process chambers
Base areas sum it is equal.
Bottom sludge blanket 101, earthworm layer 102 and upper strata sludge blanket 103, earthworm layer are disposed with first process chamber 1
102 are blended with culture medium, and culture medium is a little；Bottom sludge blanket 102, culture medium layer 202 are disposed with second processing room 6
With upper strata sludge blanket 203, culture medium layer 202 is blended with attractant, and attractant uses carbohydrate essence；It is upper in first process chamber 1
20 centimetres of the first process chamber of distance top of layer sludge blanket 101, the upper strata sludge blanket 202 of second processing room 6 is apart from second processing room 6
20 centimetres of top.
Embodiment 1：
The method for removing earthworm, based on foregoing processing unit, is carried out as follows：
1st, sludge is placed in the first process chamber 1 first, the uniform inoculation earthworm layer 102 on bottom sludge blanket 101, in earthworm layer
102 place culture medium, and culture medium is using a little（The dosage of culture medium accounts for the 10% of earthworm weight）, the effect of culture medium is to make
The vigorous breeding of earthworm simultaneously adapts to sludge environment.Then, upper strata sludge 103 is sprinkled again in earthworm layer 102, upper strata sludge blanket 103 is thick
Degree is kept for 10 centimetres, and uniform spreading keeps nature porosity, upper strata sludge blanket 103 to should ensure that Sludge Surface and the first process chamber 1
There is 20 centimetres of distance in top edges；The earthworm layer cm of 102 thickness 5；The cm of bottom sludge blanket thickness 15.
2nd, the cloth for completing the first process chamber 1 is postponed, and second processing room 6 is arranged：Bottom sludge blanket 201 is first arranged,
A small amount of attractant is blended while spreading culture medium on bottom sludge blanket（The mass ratio of culture medium and attractant is 2：1, the two matter
Amount sum accounts for the 10% to 15% of earthworm quality）,；Then, sludge blanket is arranged again in culture medium layer, upper strata sludge thickness keeps
13.5 centimetres, uniform spreading keeps nature porosity, upper strata sludge to should ensure that Sludge Surface is deposited with second processing room top edges
In 20 centimetres of distance.The cm of culture medium layer thickness 1.5, the cm of bottom sludge blanket thickness 15.
3rd, lucifuge insulation case lid 11, and the temperature of routine observation earthworm active and the first process chamber 1, moisture and pH are covered
The external conditions such as value, keep the stable condition of suitable earthworm growth and breeding, while entering to sludge total heavy metal amount and single earthworm
Line sampling is determined, and observation index content and earthworm breed situation.
4th, when wormcast discharges inactive or Sludge Surface and piled with wormcast, illustrate that earthworm has reached a kind of relatively steady
Fixed inertia weather, need to be driven to excite earthworm active to it.Top layer wormcast is struck off, if weight in detection sludge
Tenor is below standard, and sludge is put back to after smashing to pieces；Open lighting device 10, and extract centre can pull thin plate 9, make at first
Reason room 1 and second processing room 6 keep connected state；Then water pump is opened by the first feed pipe 3 to slow in the first process chamber 1
Injection water, it is ensured that water level is reached 1 to 2 centimetre below the edge of dividing plate bottommost through hole 8, you can switched off the pump.
Top layer earthworm excrement in step 4, if detection is up to standard, can be directly used for fertilising after smashing to pieces, if a huge sum of money after detection
Category is below standard, is put back to after smashing to pieces.
5th, etc. after earthworm almost all enters second processing room 6 by the through hole 8 on dividing plate 7, at the same time, at first
Sludge uniformly turn over and smash in reason room 1, and it is manually transferred in second processing room 6 if finding still to have remaining earthworm, can
Pull thin plate 9 is turned back to, and blocks the first process chamber 1 and second processing room 6, then opens the first osculum of bottom of the first process chamber 1
2, the water control in the first process chamber 1 is done；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, press
The first process chamber of step 2 pair 1 is arranged：The new untreated sludge of bottom, training agent base and attractant are inserted, upper strata covering is not located newly
Reason sludge；If below standard, earthworm culture medium and attractant are added；First process chamber is carried out uniformly to turn over and is smash.
6th, after the earthworm of the first process chamber 1 all shifts, second processing room is handled as follows：
6-1, cover lucifuge insulation case lid 11, and the temperature of routine observation earthworm active and second processing room 6, moisture and pH value
Etc. external condition, the stable condition of suitable earthworm growth and breeding is kept, while being carried out to sludge total heavy metal amount and single earthworm
Sampling is determined, and observation index content and earthworm breed situation.
6-2, whne wormcast discharge inactive or Sludge Surface piled with wormcast when, top layer wormcast is struck off, if inspection
Survey Heavy Metal Level In Sludge is below standard, and sludge is put back to after smashing to pieces；Open lighting device 11, and extract centre can pull thin plate
9, the first process chamber 1 and second processing room 6 is kept connected state；Then the second water pump is opened by the second feed pipe 4 to the
Two process chambers 6 are slowly injected into water, it is ensured that water level is reached 1 to 2 centimetre below the bottommost through hole of dividing plate 7, you can close the second water
Pump.
6-3, etc. earthworm almost all by the through hole on dividing plate 7 enter the first process chamber 4 after, at the same time, to second
Sludge uniformly turn over and smash in process chamber 6, and it is manually transferred to the first process chamber 1 if finding still to have remaining earthworm, can
Pull way-board 9 is turned back to, and blocks the first process chamber 1 and second processing room 6, then opens the second row of the bottom of second processing room 6
Water hole 5, the water control in second processing room 6 is done；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery.So
Afterwards, second processing room 6 is arranged by step 2：Bottom sludge, culture medium and the attractant of new untreated layer are inserted, newly
The untreated sludge in upper strata；If below standard, earthworm culture medium and attractant are added；In this way, two process chamber reciprocation cycles,
After Heavy Metals in Sludge is up to standard, untreated sludge is changed.
Additionally, in whole processing method operating process, can be determined by preliminary experiment for sludge and earthworm inoculum concentration,
I.e. before experiment starts, the homotype earthworm of the sludge quantity of different gradients and different gradients is placed in same indoor culture, with culture
Heavy metal removing rate is detected after time, heavy metal removing rate one group of gradient of highest is chosen, the amount of inserting of sludge during as experiment
With the inoculum concentration of earthworm, wherein the amount of earthworm experiment when should ensure that to be 1.8 to 2.0 times of preliminary experiment.
Embodiment 2：
The minimizing technology of the device based on earthworm removal Heavy Metals in Sludge, is carried out as follows：
1st, sludge is placed in the first process chamber 1 first, the uniform inoculation earthworm layer 102 on bottom sludge blanket 101, in earthworm layer
102 place culture medium, and culture medium is using a little（The dosage of culture medium accounts for the 10% of earthworm weight）, the effect of culture medium is to make
The vigorous breeding of earthworm simultaneously adapts to sludge environment.Then, upper strata sludge 103 is sprinkled again in earthworm layer 102, upper strata sludge blanket 103 is thick
Degree is kept for 10 centimetres, and uniform spreading keeps nature porosity, upper strata sludge blanket 103 to should ensure that Sludge Surface and the first process chamber 1
There is 20 centimetres of distance in top edges；The earthworm layer cm of 102 thickness 5；The cm of bottom sludge blanket thickness 15.
2nd, the cloth for completing the first process chamber 1 is postponed, and second processing room 6 is arranged：Bottom sludge blanket 201 is first arranged,
Blend a small amount of attractant while spreading culture medium on bottom sludge blanket, the mass ratio of culture medium and attractant is 2：1, the two matter
Amount sum accounts for the 15% of earthworm quality；Then, sludge blanket is arranged again in culture medium layer, upper strata sludge thickness is kept for 13.5 lis
Rice, uniform spreading keeps nature porosity, upper strata sludge to should ensure that Sludge Surface has 20 lis with second processing room top edges
The distance of rice.The cm of culture medium layer thickness 1.5, the cm of bottom sludge blanket thickness 15.
3rd, lucifuge insulation case lid 11, and the temperature of routine observation earthworm active and the first process chamber 1, moisture and pH are covered
The external conditions such as value, keep the stable condition of suitable earthworm growth and breeding, while entering to sludge total heavy metal amount and single earthworm
Line sampling is determined, and observation index content and earthworm breed situation.
4th, when Sludge Surface has piled with wormcast, illustrate that earthworm has reached a kind of metastable inertia weather,
Need to it be driven to excite earthworm active.Top layer wormcast is struck off, it is dirty if detection Heavy Metal Level In Sludge is below standard
Mud is put back to after smashing to pieces；Open lighting device 10, and extract centre can pull thin plate 9, make the first process chamber 1 and second processing room
6 keep connected state；Then water pump is opened by the first feed pipe 3 to being slowly injected into water in the first process chamber 1, it is ensured that water level reaches
2 centimetres below to the edge of dividing plate bottommost through hole 8, you can switch off the pump.
Top layer earthworm excrement in step 4, if detection is up to standard, can be directly used for fertilising after smashing to pieces, if a huge sum of money after detection
Category is below standard, is put back to after smashing to pieces.
5th, etc. after earthworm all enters second processing room 6 by the through hole 8 on dividing plate 7, at the same time, to the first process chamber
Sludge uniformly turn over and smash in 1, and it is manually transferred in second processing room 6 if finding still to have remaining earthworm, can pull
Thin plate 9 is turned back to, and blocks the first process chamber 1 and second processing room 6, then opens the first osculum of bottom 2 of the first process chamber 1, will
Water control in first process chamber 1 is done；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, by step
2 pairs of the first process chambers 1 are arranged：Insert the new untreated sludge of bottom, training agent base and attractant, the new untreated dirt of upper strata covering
Mud；If below standard, earthworm culture medium and attractant are added；First process chamber is carried out uniformly to turn over and is smash.
6th, after the earthworm of the first process chamber 1 all shifts, second processing room is handled as follows：
6-1, cover lucifuge insulation case lid 11, and the temperature of routine observation earthworm active and second processing room 6, moisture and pH value
Etc. external condition, the stable condition of suitable earthworm growth and breeding is kept, while being carried out to sludge total heavy metal amount and single earthworm
Sampling is determined, and observation index content and earthworm breed situation.
6-2, when Sludge Surface has piled with wormcast, top layer wormcast is struck off, if detection Heavy Metal Level In Sludge
Below standard, sludge is put back to after smashing to pieces；Open lighting device 11, and extract centre can pull thin plate 9, make the He of the first process chamber 1
Second processing room 6 keeps connected state；Then the second water pump is opened to be slowly injected into second processing room 6 by the second feed pipe 4
Water, it is ensured that water level is reached 1 to 2 centimetre below the bottommost through hole of dividing plate 7, you can close the second water pump.
6-3, etc. earthworm all by the through hole on dividing plate 7 enter the first process chamber 4 after, at the same time, to second processing
Sludge uniformly turn over and smash in room 6, and it is manually transferred to the first process chamber 1 if finding still to have remaining earthworm, can pull
Way-board 9 is turned back to, and blocks the first process chamber 1 and second processing room 6, then opens the second osculum of the bottom of second processing room 6
5, the water control in second processing room 6 is done；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery.Then, press
Step 2 is arranged to second processing room 6：Insert bottom sludge, culture medium and the attractant of new untreated layer, new upper strata
Untreated sludge；If below standard, earthworm culture medium and attractant are added；In this way, two process chamber reciprocation cycles, treat sludge
After middle heavy metal is up to standard, untreated sludge is changed.
Additionally, in whole processing method operating process, can be determined by preliminary experiment for sludge and earthworm inoculum concentration,
I.e. before experiment starts, the homotype earthworm of the sludge quantity of different gradients and different gradients is placed in same indoor culture, with culture
Heavy metal removing rate is detected after time, heavy metal removing rate one group of gradient of highest is chosen, the amount of inserting of sludge during as experiment
With the inoculum concentration of earthworm, wherein the amount of earthworm experiment when should ensure that to be 1.8 to 2.0 times of preliminary experiment.
Claims (10)
1. a kind of earthworm removes the device of Heavy Metals in Sludge, including the first process chamber for being set up in parallel and second processing room, its
It is characterised by：Dividing plate is provided between first process chamber and second processing room, dividing plate top is provided with through hole, and dividing plate top sets
Be equipped with can pull thin plate, the first chamber bottom is provided with the first osculum and the first feed pipe, and second processing room bottom is set
There are the second osculum and the second drainpipe, the first process chamber and second processing room top are incubated case lid equipped with lucifuge；First treatment
Interior is disposed with bottom sludge blanket, earthworm layer and upper strata sludge blanket, and earthworm layer is blended with culture medium；In second processing room according to
Secondary to be provided with bottom sludge blanket, culture medium layer and upper strata sludge blanket, culture medium layer is blended with attractant；It is upper in first process chamber
10 to 20 centimetres of layer sludge the first process chamber of distance top, in the upper strata sludge arrangement form of second processing room and the first process chamber
Upper strata sludge arrangement it is identical.
2. earthworm according to claim 1 removes the device of Heavy Metals in Sludge, it is characterised in that：Dividing plate top is located at and passes through
The side of through hole be provided with can pull thin plate, the both sides of dividing plate are respectively provided with locating piece, detent are provided with locating piece, fixed
Position groove built with can pull thin plate, can be provided with the convex shoulder matched with detent on pull thin plate, can pull thin plate
Top is provided with positioning wedged block, and positioning wedged block is stuck in the upper end of detent.
3. earthworm according to claim 1 removes the device of Heavy Metals in Sludge, it is characterised in that：Arranged on first feed pipe
The first water supply hole is furnished with, the second water supply hole is placed with the second feed pipe.
4. earthworm according to claim 1 removes the device of Heavy Metals in Sludge, it is characterised in that：First feed pipe and
Serpentine-like structure is arranged in the first process chamber and second processing room to two feed pipes respectively.
5. earthworm according to claim 1 removes the device of Heavy Metals in Sludge, it is characterised in that：First process chamber and
Lighting device is respectively provided with the top of two process chambers.
6. earthworm according to claim 1 removes the device of Heavy Metals in Sludge, it is characterised in that：First process chamber and
The bottom of two process chambers is respectively provided with feet, bearing metal protection network in feet.
7. the method that the device in a kind of utilization right 1 to 6 described in any one removes earthworm, is carried out as follows：
1）Sludge is placed in the first process chamber first, uniform inoculation earthworm, places culture medium, so in earthworm layer on sludge blanket
Afterwards, sludge is sprinkled again in earthworm layer, upper strata sludge thickness is kept for 10 to 12 centimetres, and uniform spreading keeps nature porosity, upper strata
Sludge should ensure that Sludge Surface has 10 to 20 centimetres of distance with the first process chamber top edges；
2）The cloth for completing the first process chamber is postponed, and second processing room is arranged：Bottom sludge is first arranged, on bottom sludge
Attractant is blended while spreading culture medium；Then, sludge blanket is arranged again in culture medium layer, upper strata sludge thickness keeps 10 to 12
Centimetre, uniform spreading keeps nature porosity, upper strata sludge to should ensure that Sludge Surface has 10 with the first process chamber top edges
To 20 centimetres of distance；
3）Lucifuge insulation case lid is covered, and the temperature of routine observation earthworm active and the first process chamber, moisture and pH value are extraneous
Condition, keeps the stable condition of suitable earthworm growth and breeding, while being sampled survey to sludge total heavy metal amount and single earthworm
Fixed, observation index content and earthworm breed situation；
4）When wormcast discharges inactive or Sludge Surface and piled with wormcast, top layer wormcast is struck off, if detection sludge
Middle content of beary metal is below standard, and sludge is put back to after smashing to pieces；Open lighting device, and extract centre can pull thin plate, make first
Process chamber and second processing room keep connected state；Then open water pump and be slowly injected into water to the first process chamber, it is ensured that water level reaches
1 to 2 centimetre below to dividing plate bottommost through hole, you can switch off the pump；
5）After all entering second processing room by the through hole on dividing plate Deng earthworm, at the same time, to sludge in the first process chamber
Uniformly turn over and smash, it be manually transferred to second processing room if finding still to have remaining earthworm, can pull way-board turn back to,
The first process chamber and second processing room are blocked, the first chamber bottom osculum is then opened, by the water control in the first process chamber
It is dry；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, by step 2）First process chamber is carried out
Arrangement：The new untreated sludge of bottom, training agent base and attractant are inserted, upper strata covers new untreated sludge；If below standard, to first
Process chamber uniformly turn over and smash, then add earthworm culture medium and attractant；
6）First process chamber earthworm all after transfer, is handled as follows to second processing room：
6-1）Lucifuge insulation case lid is covered, and outside the temperature of routine observation earthworm active and second processing room, moisture and pH value
Boundary's condition, keeps the stable condition of suitable earthworm growth and breeding, while being sampled to sludge total heavy metal amount and single earthworm
Determine, observation index content and earthworm breed situation；
6-2）When Sludge Surface has piled with wormcast, top layer wormcast is struck off, if detection Heavy Metal Level In Sludge does not reach
Mark, sludge is put back to after smashing to pieces；Open lighting device, and extract centre can pull thin plate, make the first process chamber and second processing
Room keeps connected state；Then open water pump and be slowly injected into water to second processing room, it is ensured that water level reaches dividing plate bottommost insertion
1 to 2 centimetre below hole, you can switch off the pump；
6-3）After all entering the first process chamber by the through hole on dividing plate Deng earthworm, at the same time, to dirty in second processing room
Mud uniformly turn over and smash, and it is manually transferred into the first process chamber if finding still to have remaining earthworm, can pull thin plate turn back to,
The first process chamber and second processing room are blocked, second processing room bottom drain holes is then opened, by the water control in second processing room
It is dry；If after Heavy Metals in Sludge detection is up to standard, taking out soil and drying recovery, then, by step 2）Second processing room is carried out
Arrangement：Insert bottom sludge, culture medium and the attractant of new untreated layer, the untreated sludge in new upper strata；If below standard,
Then add earthworm culture medium and attractant；In this way, two process chamber reciprocation cycles, after Heavy Metals in Sludge is up to standard, change not
Treatment sludge.
8. the method that device according to claim 7 removes earthworm, it is characterised in that：Step 4）In top layer earthworm excrement, such as
Fruit detects up to standard, and fertilising is can be directly used for after smashing to pieces, if heavy metal is below standard after detection, is put back to after smashing to pieces.
9. the method that device according to claim 1 removes earthworm, it is characterised in that：First process chamber and second processing room
15 centimetres interior of bottom sludge thickness, earthworm layer and 5 centimetres of the mixed layer thickness of culture medium, upper strata sludge in the first process chamber
10 centimetres of thickness.
10. the method that device according to claim 7 removes earthworm, it is characterised in that：Attractant uses carbohydrate essence.
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| CN112642858A (en) * | 2020-12-04 | 2021-04-13 | 张宁 | Soil remediation ecological net and remediation method thereof |
| CN113475466A (en) * | 2021-07-22 | 2021-10-08 | 广东省科学院生态环境与土壤研究所 | Method for breeding deep-habitat earthworms |
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