CN205222738U - But active carbon effluent disposal system that active carbon on -line regeneration backfilled - Google Patents
But active carbon effluent disposal system that active carbon on -line regeneration backfilled Download PDFInfo
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- CN205222738U CN205222738U CN201520849064.9U CN201520849064U CN205222738U CN 205222738 U CN205222738 U CN 205222738U CN 201520849064 U CN201520849064 U CN 201520849064U CN 205222738 U CN205222738 U CN 205222738U
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- charcoal
- backfill
- gac
- activated carbon
- active carbon
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Abstract
The utility model provides a but active carbon effluent disposal system that active carbon on -line regeneration backfilled, contains inside layer activated carbon filter, activated carbon regeneration system and the active carbon backfill system of laying the active carbon of N, activated carbon filter is close to the bottom position and sets up the sewage water inlet, and be close to top position and set up the water purification delivery port, the activated carbon regeneration system contains active carbon draw -out device, air feeder, saturated activity charcoal conveyor, saturated activity charcoal hoisting device and activated carbon regeneration device, the active carbon draw -out device is in activated carbon layer's lower part position, and its two tip stretch out to beyond the activated carbon filter, and the active carbon draw -out device is equipped with at the part in the activated carbon filter and takes out the charcoal mouth, the first end and the air feeder of active carbon draw -out device are connected, and the second end sets up out the charcoal mouth, play charcoal mouth, saturated activity charcoal conveyor, activated carbon regeneration device, active carbon backfill system connect gradually.
Description
Technical field
The utility model belongs to technical field of sewage treatment equipment, is specifically related to reproducible gac Waste Water Treatment.
Background technology
Due to the needs that industrial expansion and people live, gac has entered the every field of national economy.Gac is the industrial adsorbents that a kind of purposes is extremely wide, it utilizes charcoal, various shell and fat coal etc. as raw material, the adsorptivity of gac comes from the molecular configuration of its uniqueness, there is a lot of hole the inside of gac, the internal structure of this uniqueness just, make gac have excellent adsorptive power, be specially adapted to as purification filtering material, be widely used in sewage and air purification field.Particularly be applied in the sewage disposal of the difficult for biological degradation such as printing and dyeing, chemical industry.Along with the widespread use of gac, in-place regeneration problem after its absorption is saturated becomes increasingly conspicuous, how fast effectively, in-place regeneration gac becomes instantly new research direction easily, domestic and international manufacturer and research institution also all adopt various method to realize the in-place regeneration of gac, but effect is not very desirable or poor practicability always.
As the patent No. is: 201210119762.4 Chinese invention patents being called " a kind of PACT novel process of renewable recycle Powdered Activated Carbon process waste water difficult for biological degradation ".
Provide a kind of PACT novel process of renewable recycle Powdered Activated Carbon process waste water difficult for biological degradation, comprise the following steps:
1) Powdered Activated Carbon precipitated in second pond and biological activated sludge are extracted out;
2) to step 1) extract out Powdered Activated Carbon and biological activated sludge carry out processed;
3) to step 2) Powdered Activated Carbon after the dehydration that obtains and biological activated sludge carry out drying, destructive distillation and activation treatment successively, and the organic substance decomposing of powder electroless plating is volatilized, and biological activated sludge pyrolysis is gac;
4) drop into biochemistry pool as regeneration Powdered Activated Carbon after product abrasive dust step 3) obtained to use.
Further, described step 2) in, the Powdered Activated Carbon after dehydration and biological activated sludge water ratio are less than 80%;
Further, in described step 3), drying temperature is 120,150 DEG C, time of drying is 1h ~ 2h, and pyrolysis temperature is 500,600 DEG C, and retorting time is 0.4h ~ 0.6h, activation is for passing into steam activation, and activation temperature is 800,950 DEG C, and soak time is 0.9h ~ 1.th;
Further, in described step 3), drying, destructive distillation and activation treatment are carried out in regeneration of activated carbon unit;
Further, in described step 3), the inflammable gas that organic substance decomposing volatilizees uses as the fuel gas of regeneration of activated carbon unit.
The beneficial effect that this patent of invention is brought is: Powdered Activated Carbon regenerates through drying, destructive distillation and activation treatment along with after biological activated sludge dehydration, biological activated sludge pyrolysis is gac simultaneously, finally obtain regenerating Powdered Activated Carbon, Powdered Activated Carbon will be regenerated and drop into biochemistry pool use, reach the object recycling Powdered Activated Carbon and biological activated sludge, avoid the wasting of resources, decrease the dosage of fresh powder gac simultaneously, greatly reduce the running cost of PACT technique.
Weak point is: need to be extracted out from pond by the saturated Powdered Activated Carbon of absorption with sludge pump, during extraction Powdered Activated Carbon, sewage lagoon needs to drain water, could again put into operation after treating regeneration of activated carbon, backfill, length consuming time, this will cause the sewage lagoon long period stop work and Sewage treatment systems cannot normally be run.The demand that Sewage treatment systems is run continuously cannot be met.
Therefore, need badly and a kind ofly can carry out on-line regeneration process and the Sewage treatment systems that can run continuously to gac.
Summary of the invention
The purpose of this utility model is to provide a kind ofly can carry out on-line regeneration process and the gac Waste Water Treatment that can run continuously to gac, to overcome above-mentioned deficiency, enables gac on-line regeneration, runs continuously, without the need to long-time shutdown.
Realize the utility model object a kind of gac can on-line regeneration backfill gac Waste Water Treatment be achieved in that
A kind of gac can on-line regeneration backfill gac Waste Water Treatment, comprise gac Sewage treatment systems, regeneration of activated carbon system and gac backfill system, it is characterized in that: described gac Sewage treatment systems comprises N number of activated carbon filter 1, N>1, the close bottom position of each activated carbon filter arranges sewage inlet, the close tip position of activated carbon filter arranges water purification water outlet, and the laid inside of activated carbon filter has active carbon layer;
Described regeneration of activated carbon system comprises at least one gac draw-out device, air feeder, saturated activity charcoal e Foerderanlage, saturated activity charcoal lifting gear and active carbon regenerating unit, described gac draw-out device is in the lower position of active carbon layer, its first end and the second end extend out to beyond activated carbon filter, the described gac draw-out device part be in activated carbon filter is provided with takes out charcoal mouth, the first end of described gac draw-out device is connected with air feeder, the second end arranges carbon outleting port, described saturated activity charcoal e Foerderanlage is connected with the carbon outleting port of gac draw-out device and the input aperture of described active carbon regenerating unit respectively, the delivery port of described active carbon regenerating unit is connected with gac backfill system,
Described gac backfill system comprises backfill charcoal lifting gear, backfill charcoal main belt and backfill charcoal travelling belt, the front end of described backfill charcoal lifting gear is connected with the delivery port of active carbon regenerating unit, the rear end of backfill charcoal lifting gear with backfill charcoal main belt and be connected, the end of described backfill charcoal main belt extend to the 1st activated carbon filter top but and the 1st activated carbon filter towards the 2nd activated carbon filter edge between there is certain distance; A backfill charcoal travelling belt is set up in the top of every two adjacent activated carbon filters, described backfill charcoal travelling belt has the first end that can bend downwards, when the first end of described backfill charcoal travelling belt is not bent, the front edge of each first end of backfill charcoal travelling belt and the previous activated carbon filter at its place has certain distance, the rear edge of a rear activated carbon filter at its second end and its place has certain distance; The first end 91 of the 1st backfill charcoal travelling belt extends to the below of the end of backfill charcoal main belt 8, after this, in every two adjacent backfill charcoal travelling belts, the first end 91 of a rear backfill charcoal travelling belt extends to the below of the second end 92 of previous backfill charcoal travelling belt.
In order to obtain better technique effect, the technical solution of the utility model can also be specially following technical characterstic:
1. saturated activity charcoal e Foerderanlage described in is a belting having except water function concurrently.
2. the belting of further, described saturated activity charcoal e Foerderanlage arranges draining hole and/or drainage groove.
3. described in, saturated activity charcoal lifting gear has concurrently except water function travelling belt.
4. the belting of further, described saturated activity charcoal lifting gear arranges draining hole and/or drainage groove.
5. the openings of sizes of taking out charcoal mouth described in is adjustable.
6. further, be also provided with and take out charcoal mouth opening adjusting device for regulating the openings of sizes of taking out charcoal mouth.
7. gac draw-out device described in is a hollow pipe, and on it, charcoal mouth is taken out in setting.
8. also comprise flow monitoring device and automatic control device, described flow monitoring device is installed on the sewage inlet place of charcoal canister, described automatic control device and gac draw-out device, air feeder, saturated charcoal e Foerderanlage, saturated activity charcoal lifting gear, active carbon regenerating unit, backfill charcoal lifting gear, backfills charcoal main belt and backfills charcoal travelling belt and be electrically connected.
9. also comprise the bending mechanism 93 of a backfill charcoal travelling belt first end, for making the first end bending of backfill charcoal travelling belt and launching return.
Adopt technical solutions of the utility model gac can on-line regeneration backfill gac Waste Water Treatment, tool has the following advantages:.
1. by the belting that the becomes end bent backfill charcoal conveyor belt design backfilling apparatus as gac, backfill charcoal is transported exactly and exactly and be backfilling into each activated carbon filter, multiple activated carbon filter is run and in-place regeneration becomes possibility simultaneously.
2. saturated activity charcoal lifting gear described in has concurrently except water function travelling belt, can not only transport and need the saturated activity charcoal of regeneration to regenerating unit, in transport process, the water drop in saturated activity charcoal can be removed again, reduce the water ratio of saturated activity charcoal, reduce the energy waste of regenerative process, improve regeneration efficiency, energy-saving and emission-reduction;
3. saturated activity charcoal lifting gear described in has concurrently except water function travelling belt, can not only transport and need the saturated activity charcoal of regeneration to regenerating unit, in transport process, the water drop in saturated activity charcoal can be removed again, make in system without the need to arranging special water removal device, make system architecture simple, equipment is few, takes up an area little, reduce the operation expense of hardware and investment in land cost and equipment, be convenient to the popularization of in-place regeneration system.
4. adopt travelling belt to transport and backfill, system run all right, failure rate is low.
5. be provided with flow monitoring device and automatic control device, the traffic conditions of sewage inlet 11 is monitored by flow monitoring device, when flow is reduced to a certain set(ting)value, automatic control system will start regeneration of activated carbon and backfill program, reduce manual maintenance workload and cost.
6. level of automation is high, can non-stop run, without the need to quitting work because changing gac.
accompanying drawing illustrates:
Fig. 1 be gac of the present utility model can on-line regeneration backfill gac Waste Water Treatment side-view
Fig. 2 be gac of the present utility model can on-line regeneration backfill gac Waste Water Treatment in front view
Fig. 3 is that gac described in Fig. 2 can the vertical view of gac Waste Water Treatment of on-line regeneration backfill
In figure, 1 is activated carbon filter, and 11 is the sewage inlet of activated carbon filter, and 12 is the water purification water outlet of activated carbon filter, and 13 is flow monitoring device; 2 is gac draw-out device, and 21 is the first end of gac draw-out device, 22 be the second end 22,23 of gac draw-out device for taking out charcoal mouth, 24 is carbon outleting port; Saturated activity charcoal e Foerderanlage, 3 is air feeder, 4 is saturated activity charcoal e Foerderanlage, 5 is saturated activity charcoal lifting gear, and 6 is active carbon regenerating unit, and 7 is backfill charcoal lifting gear, 8 is backfill charcoal main belt, 9 is backfill charcoal travelling belt, and 91 is the first end backfilling charcoal travelling belt, and 92 is the second end backfilling charcoal travelling belt.
embodiment:
embodiment one:
As shown in Fig. 1 ~ 3, a kind of gac of the present utility model can on-line regeneration backfill gac Waste Water Treatment, comprise gac Sewage treatment systems, regeneration of activated carbon system and gac backfill system, also comprise flow monitoring device 13 and automatic control device (not shown), the active carbon layer of described activated carbon filter laid inside is filled by granular active carbon and is formed.Described gac Sewage treatment systems comprises N number of activated carbon filter 1, N>1, the close bottom position of each activated carbon filter 1 arranges sewage inlet 11, and the close tip position of activated carbon filter arranges water purification water outlet 12, and the laid inside of activated carbon filter has active carbon layer;
As shown in Figure 2, described gac backfill system comprises backfill charcoal lifting gear 7, backfill charcoal main belt 8 and backfill charcoal travelling belt 9.
The described front end of backfill charcoal lifting gear 7 is connected with the delivery port 62 of active carbon regenerating unit, the rear end of backfill charcoal lifting gear 7 with backfill charcoal main belt 8 and be connected, the end of described backfill charcoal main belt 8 extend to the 1st activated carbon filter top but and the 1st activated carbon filter towards the 2nd activated carbon filter edge between there is certain distance; A backfill charcoal travelling belt is set up in the top of every two adjacent activated carbon filters, described backfill charcoal travelling belt has the first end that can bend downwards, the bending mechanism 93 also comprising a backfill charcoal travelling belt first end is connected with automatic control device and is controlled by it, for making the first end bending of backfill charcoal travelling belt and launching return.When the first end of described backfill charcoal travelling belt is not bent, the front edge of each first end of backfill charcoal travelling belt and the previous activated carbon filter at its place has certain distance, the rear edge of a rear activated carbon filter at its second end and its place has certain distance; The first end 91 of the 1st backfill charcoal travelling belt extends to the below of the end of backfill charcoal main belt 8, after this, in every two adjacent backfill charcoal travelling belts, the first end 91 of a rear backfill charcoal travelling belt extends to the below of the second end 92 of previous backfill charcoal travelling belt.When the first end 91 of described backfill charcoal travelling belt 9 bends downwards, the gac that it is accepted will be received in corresponding activated carbon filter.
Described flow monitoring device is installed on sewage inlet 11 place of activated carbon filter, described automatic control device with gac draw-out device 2, air feeder 3, saturated charcoal e Foerderanlage 4, saturated activity charcoal lifting gear 5, active carbon regenerating unit 6, backfill charcoal lifting gear 7, backfill charcoal and carry and fill 8 and put and backfill charcoal travelling belt and be electrically connected.
Described regeneration of activated carbon system comprises at least one gac draw-out device 2, air feeder 3, saturated activity charcoal e Foerderanlage 4, saturated activity charcoal lifting gear 5 and active carbon regenerating unit 6, described gac draw-out device 2 is in the lower position of active carbon layer, two end 21 and 22 extend out to beyond activated carbon filter, described gac draw-out device 2 part be in activated carbon filter is provided with takes out charcoal mouth 23, the first end 21 of described gac draw-out device is connected with air feeder, the second end 22 arranges carbon outleting port 24, described saturated activity charcoal e Foerderanlage 4 is connected with the carbon outleting port 24 of gac draw-out device and the input aperture 61 of described active carbon regenerating unit 6 respectively, the delivery port 62 of described active carbon regenerating unit is connected with backfill charcoal lifting gear 7, described saturated charcoal e Foerderanlage 4 is a belting having except water function concurrently.
In order to obtain better technique effect, the belting of the saturated charcoal e Foerderanlage 4 in the present embodiment arranges draining hole and/or drainage groove.And described saturated activity charcoal lifting gear 5 is also have concurrently except water function travelling belt, draining hole and/or drainage groove also can be set so that drop is except the moisture in saturated activity charcoal thereon.
In the present embodiment, described gac draw-out device 2 is hollow pipes, and on it, charcoal mouth 23 is taken out in setting, described in take out the openings of sizes of charcoal mouth 23 adjustable.Charcoal mouth opening adjusting device is taken out for regulating the openings of sizes of taking out charcoal mouth by arranging in practical application.In actual applications, several tapers can be set in the bottom of described activated carbon filter, near the vertex of a cone position of each taper, gac draw-out device 2 be set, to extract saturated charcoal equably.
Gac of the present utility model can the principle of work of gac Waste Water Treatment of on-line regeneration backfill be described below:
Gac of the present utility model can on-line regeneration backfill gac Waste Water Treatment in, sewage arranges sewage inlet 11 by being arranged on enter in granular active carbon filtering pool near bottom position, the water purification water outlet 12 that water after process is arranged from the close tip position being located at activated carbon filter is discharged, and flow monitoring device 13 is set at sewage inlet 11 place, the traffic conditions of sewage inlet 11 is monitored by flow monitoring device 13, when flow is reduced to a certain set(ting)value, illustrate that the gac bottom activated carbon filter needs regeneration close to saturated, now automatic control system is by startup regeneration and backfilling process, described gac draw-out device 2 extracts the saturated activity charcoal bottom activated carbon filter, the saturated activity charcoal extracted out is sent in active carbon regenerating unit 6 and is regenerated after the draining of saturated activity charcoal e Foerderanlage 4 and lifting, after regeneration gac be transported to the top of activated carbon filter by backfill charcoal main belt 8, when supplementing gac to first activated carbon filter, bending mechanism 93 action by automatic control device controls of the first end of first backfill charcoal travelling belt 9, first first end backfilling charcoal travelling belt 9 is bent downwards, the gac of main belt end falls into first activated carbon filter, after first activated carbon filter supplements, the bending mechanism 93 of the first end of first backfill charcoal travelling belt 9 makes first first end return backfilling charcoal travelling belt 9 by automatic control device control action, gac is sent on a backfill charcoal travelling belt, when second activated carbon filter needs supplementary gac, the first end of first backfill charcoal travelling belt 9 launches return, now, the first end of second backfill charcoal travelling belt 9 bends downwards, the gac of the second end end of first backfill charcoal travelling belt 9 falls into second activated carbon filter, after second activated carbon filter supplements, the bending mechanism 93 of the first end of second backfill charcoal travelling belt 9 makes second first end backfilling charcoal travelling belt 9 launch return by automatic control device control action, so, posterior activated carbon filter carries out gac when supplementing, all first ends 91 being in the backfill charcoal travelling belt of its front end all keep launching return state and are not bent gac to be transported to the top needing the activated carbon filter supplemented, and first end 91 bending being in the backfill charcoal travelling belt above it makes gac do not fallen into filter tank by accepting, thus complete described activated carbon filter is filled.The level of automation of native system is high, can non-stop run, and accuracy rate is high, without the need to quitting work because changing gac, and can reduce manual maintenance workload and cost.
The utility model gac the gac Waste Water Treatment of on-line regeneration backfill can have excellent energy-conserving and environment-protective advantage, has great economic and social benefit.
Above embodiment only for illustration of the technical solution of the utility model, but not is limited; Although embodiment of the present utility model has been described in detail the utility model.But for a person skilled in the art, still can modify to the technical solution of the utility model or carry out equivalent replacement to it, these amendments any or replacement all belong to the scope of the utility model technical scheme required for protection.
Claims (10)
1. a gac can the gac Waste Water Treatment of on-line regeneration backfill, comprise gac Sewage treatment systems, regeneration of activated carbon system and gac backfill system, it is characterized in that: described gac Sewage treatment systems comprises N number of activated carbon filter (1), N > 1, the close bottom position of each activated carbon filter (1) arranges sewage inlet (11), the close tip position of activated carbon filter arranges water purification water outlet (12), and the laid inside of activated carbon filter has active carbon layer;
Described regeneration of activated carbon system comprises at least one gac draw-out device (2), air feeder (3), saturated activity charcoal e Foerderanlage (4), saturated activity charcoal lifting gear (5) and active carbon regenerating unit (6), described gac draw-out device (2) is in the lower position of active carbon layer, its first end (21) and the second end (22) extend out to beyond activated carbon filter, described gac draw-out device (2) part be in activated carbon filter is provided with takes out charcoal mouth (23), the first end (21) of described gac draw-out device is connected with air feeder (3), the second end (22) arranges carbon outleting port (24), described saturated activity charcoal e Foerderanlage (4) is connected with the carbon outleting port (24) of gac draw-out device and the input aperture (61) of described active carbon regenerating unit (6) respectively, the delivery port (62) of described active carbon regenerating unit is connected with gac backfill system,
Described gac backfill system comprises backfill charcoal lifting gear (7), backfill charcoal main belt (8) and backfill charcoal travelling belt (9), the front end of described backfill charcoal lifting gear (7) is connected with the delivery port (62) of active carbon regenerating unit, the rear end of backfill charcoal lifting gear (7) with backfill charcoal main belt (8) and be connected, the end of described backfill charcoal main belt (8) extend to the 1st activated carbon filter top but and the 1st activated carbon filter towards the 2nd activated carbon filter edge between there is certain distance;
A backfill charcoal travelling belt is set up in the top of every two adjacent activated carbon filters, described backfill charcoal travelling belt has the first end that can bend downwards, when the first end of described backfill charcoal travelling belt is not bent, the front edge of each first end of backfill charcoal travelling belt and the previous activated carbon filter at its place has certain distance, the rear edge of a rear activated carbon filter at its second end and its place has certain distance; The first end (91) of the 1st backfill charcoal travelling belt extends to the below of the end of backfill charcoal main belt (8), after this, in every two adjacent backfill charcoal travelling belts, the first end (91) of a rear backfill charcoal travelling belt extends to the below of the second end (92) of previous backfill charcoal travelling belt.
2. gac according to claim 1 can on-line regeneration backfill gac Waste Water Treatment, it is characterized in that: described saturated activity charcoal e Foerderanlage (4) is a belting having except water function concurrently.
3. gac as claimed in claim 1 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: the bending mechanism (93) also comprising a backfill charcoal travelling belt first end, for making the first end bending of backfill charcoal travelling belt and launching return.
4. gac as claimed in claim 2 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: the belting of described saturated activity charcoal e Foerderanlage (4) arranges draining hole and/or drainage groove.
5. gac as claimed in claim 1 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: described saturated activity charcoal lifting gear (5) has the travelling belt except water function concurrently.
6. gac as claimed in claim 1 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: the belting of described saturated activity charcoal lifting gear (5) arranges draining hole and/or drainage groove.
7. gac as claimed in claim 1 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: described in take out the openings of sizes of charcoal mouth (23) adjustable.
8. the gac as described in claim 1 or 6 can the gac Waste Water Treatment of on-line regeneration backfill, it is characterized in that: be also provided with and take out charcoal mouth opening adjusting device and take out the openings of sizes of charcoal mouth (23) for regulating.
9. the gac as described in claim 1 or 6 can on-line regeneration backfill gac Waste Water Treatment, it is characterized in that: described gac draw-out device (2) is a hollow pipe, takes out charcoal mouth (23) described in it is arranged.
10. a kind of gac as claimed in claim 1 can on-line regeneration backfill gac Waste Water Treatment, it is characterized in that: also comprise flow monitoring device (13) and automatic control device, described flow monitoring device (13) is installed on sewage inlet (11) place of activated carbon filter, described automatic control device (10) and gac draw-out device (2), air feeder (3), saturated charcoal e Foerderanlage (4), saturated activity charcoal lifting gear (5), active carbon regenerating unit (6), backfill charcoal lifting gear (7), backfill charcoal main belt (8) and backfill charcoal travelling belt (9) electrical connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520849064.9U CN205222738U (en) | 2015-10-30 | 2015-10-30 | But active carbon effluent disposal system that active carbon on -line regeneration backfilled |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520849064.9U CN205222738U (en) | 2015-10-30 | 2015-10-30 | But active carbon effluent disposal system that active carbon on -line regeneration backfilled |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629962A (en) * | 2015-10-30 | 2017-05-10 | 新大陆科技集团有限公司 | Active carbon wastewater treatment system capable of performing online regeneration backfill on active carbon |
| CN109205727A (en) * | 2018-11-07 | 2019-01-15 | 无锡四方集团有限公司 | The Processes and apparatus of active carbon former address displacement desorption and regeneration after activated carbon adsorption organic matter soluble in water and adsorption saturation |
-
2015
- 2015-10-30 CN CN201520849064.9U patent/CN205222738U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629962A (en) * | 2015-10-30 | 2017-05-10 | 新大陆科技集团有限公司 | Active carbon wastewater treatment system capable of performing online regeneration backfill on active carbon |
| CN109205727A (en) * | 2018-11-07 | 2019-01-15 | 无锡四方集团有限公司 | The Processes and apparatus of active carbon former address displacement desorption and regeneration after activated carbon adsorption organic matter soluble in water and adsorption saturation |
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