GB2353991A - Producing fertiliser from leachate - Google Patents
Producing fertiliser from leachate Download PDFInfo
- Publication number
- GB2353991A GB2353991A GB9921176A GB9921176A GB2353991A GB 2353991 A GB2353991 A GB 2353991A GB 9921176 A GB9921176 A GB 9921176A GB 9921176 A GB9921176 A GB 9921176A GB 2353991 A GB2353991 A GB 2353991A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leachate
- fertiliser
- production
- biologically
- solids fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000001471 micro-filtration Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229940057324 biore Drugs 0.000 claims 1
- 238000004064 recycling Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 1
- 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000021536 Sugar beet Nutrition 0.000 description 1
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
A process for the production of a fertiliser comprises the steps of treating a leachate biologically and then subjecting same to filtration, the solid fraction being collected for use as a fertiliser.
Description
2353991 A RECYCLING PROCESS The present invention relates to a recycling
process. More particularly, the present invention relates to a process for recycling leachate to produce a fertiliser, namely, a substance which when added to soil or water increases its productivity.
Industrial and commercial waste is sometimes disposed of in landfill sites. Whilst a landfill site is operational, incident rainfall may enter the site and consequently, mix with the waste. On doing so, such rainfall is likely to become contaminated to form a leachate.
Leachate is an industrial waste and, in the UK, is subject to control under the Waste Management Licensing Regulations 1994. In this connection, it is a requirement of a landfill site that the leachate is maintained below a maximum permissible level within the site and as a result thereof, it is necessary to remove the leachate from the landfill site from time to time, At present, the options for leachate, disposal involve extraction and removal of such leachate to another facility for treatment, for example, after extraction such leachate may be taken to a plant sewage works for treatment before being discharged into a river. It will be appreciated by persons in the field that the removal and extraction of leachate from a landfill site is time consuming and moreover, expensive.
According to the present invention there is provided a process for the production of fertiliser comprising the steps of treating a leachate biologically and then subjecting same to filtration, the resulting solids fraction being collected for use as a fertiliser.
It is believed that for the first time the present invention provides a process for the recycling of leachate to produce a fertiliser. In this connection, 2 our research, which has been assessed by the Environment Agency and ADAS Consultants, the latter formerly being part of the Ministry of Agriculture, has established that a fertiliser produced by the process of the present invention had beneficial effects on a sugar beet crop, as same provided an alternative source of sodium and boron and moreover, compared favourably with the application of these nutrients from conventional supplies.
In a preferred embodiment, the leachate, subsequent to biological treatment, is subjected to microfiltration, namely, a pressure driven process involving the separation of a solution into two phases (permeate and concentrate) by the passage of the liquid through a membrane with a solids retention range between 0.8 and 3.0 micrometers.
In a preferred embodiment, the leachate is treated biologically by passing same through a bioreactor that includes a population of microorganisms that use the contaminants in the leachate as a source of food.
One, non-limiting, example of a process in accordance with the present invention will now be described below.
The leachate was removed from the landfill site by the utilisation of conventional pumping apparatus.
Once extracted, the leachate was passed through a bioreactor. The resulting effluent was then passed through microfiltration apparatus to produce two fractions, namely, the filtrate (having a particle size below 0.8microns) and the solids or sludge fraction (having a particle size above 0.8 microns). The filtrate fraction was discharged back to the landfill site in line with the concept of flushing the bioreactor and the solids or sludge fraction was stored for use as a fertiliser.
3
Claims (5)
1 A process for the production of fertiliser comprising the steps of treating a leachate biologically and then subjecting same to filtration, the resulting solids fraction being collected for use as a fertiliser.
2. A process for the production of fertiliser as claimed in claim 1, wherein the leachate subsequent to being treated biologically is subjected to microfiltration.
3. A process for the production of fertiliser as claimed in claim 2, wherein the solids fraction has a particle size above 0.8microns.
4. A process for the production of fertiliser as claimed in claim 1, 2 or 3, wherein the biological treatment involves passing the leachate through a bioreactor.
5. A method of producing a fertiliser substantially as hereinbefore described.
5. A process for the production of fertiliser substantially as hereinbefore described.
Amendments to the claims have been filed as follows CLAIMS 1 - A method of producing a fertiliser comprising the steps of treating a leachate, obtained from a landfill site, biologically and then subjecting same to filtration, the resulting solids fraction being collected.
2. The method of claim 1, wherein the leachate subsequent to being treated biologically is subjected to microfiltration.
3. The method of claim 2, wherein the solids fraction has a particle size above 0.8microns.
4. The method of claim 1, 2 or 3, wherein the biological treatment involves passing the leachate through a biore.actor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9921176A GB2353991B (en) | 1999-09-09 | 1999-09-09 | The production of a fertiliser from leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9921176A GB2353991B (en) | 1999-09-09 | 1999-09-09 | The production of a fertiliser from leachate |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9921176D0 GB9921176D0 (en) | 1999-11-10 |
| GB2353991A true GB2353991A (en) | 2001-03-14 |
| GB2353991B GB2353991B (en) | 2001-08-15 |
Family
ID=10860543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9921176A Expired - Fee Related GB2353991B (en) | 1999-09-09 | 1999-09-09 | The production of a fertiliser from leachate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2353991B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4368120A (en) * | 1979-12-31 | 1983-01-11 | Leonard P. Martone | Effluent treatment system |
| EP0426933A1 (en) * | 1989-09-28 | 1991-05-15 | FOSTER WHEELER ITALIANA S.p.A. | Method and plant for the treatment of leachate from sanitary landfills for municipal solid waste and similar wastes |
| WO1991007354A1 (en) * | 1989-11-15 | 1991-05-30 | Irving Ainsworth (Holdings) Limited | Water treatment method |
-
1999
- 1999-09-09 GB GB9921176A patent/GB2353991B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4368120A (en) * | 1979-12-31 | 1983-01-11 | Leonard P. Martone | Effluent treatment system |
| EP0426933A1 (en) * | 1989-09-28 | 1991-05-15 | FOSTER WHEELER ITALIANA S.p.A. | Method and plant for the treatment of leachate from sanitary landfills for municipal solid waste and similar wastes |
| WO1991007354A1 (en) * | 1989-11-15 | 1991-05-30 | Irving Ainsworth (Holdings) Limited | Water treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2353991B (en) | 2001-08-15 |
| GB9921176D0 (en) | 1999-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20090514 AND 20090520 |
|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20130909 |