BE1011422A4 - An anaerobic flake-supporting agent for the improvement of the functioning of an anaerobic water purification system - Google Patents
An anaerobic flake-supporting agent for the improvement of the functioning of an anaerobic water purification system Download PDFInfo
- Publication number
- BE1011422A4 BE1011422A4 BE9600147A BE9600147A BE1011422A4 BE 1011422 A4 BE1011422 A4 BE 1011422A4 BE 9600147 A BE9600147 A BE 9600147A BE 9600147 A BE9600147 A BE 9600147A BE 1011422 A4 BE1011422 A4 BE 1011422A4
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- anaerobic
- reactor
- grandos
- slurry
- Prior art date
Links
Classifications
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/547—Tensides
-
- 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
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
This relates to a supplementary product that can improve the functioning of anaerobic reactors in water purification. The supplementary product induces the formation of good anaerobic granular slurry that is easier to hold in the reactor. The supplementary product comprises a broad spectrum of co-nutrients through which the growth of the slurry granules is advanced. In addition to this, the RACOD fraction and the Grandos Ylv-reducing capacity results in an improved and more robust granule, which increases the slurry stability. Grandos improves the conditions for better stability in the granular slurry, enabling it to be held in the reactor in a more efficient manner in spite of the production of bio-gas and the flow of the water to be purified through the reactor.
Description
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CLAIMS 1. - Een biostimulerend toeslagprodukt, Grandos, dat een goede groei van het anaëroob korrelslib verzekert. Het toeslagprodukt zorgt voor grotere en beter gevormde korrels, zodat deze beter kunnen bezinken en waardoor het anaerobe slib gemakkelijker in de reaktor te houden is. De werking berust op de kombinatie van drie principes zoals navolgend vermeld. Deze kombinatie van een snelverzurend koolhydraatmengsel, een llv-verlagende kapaciteit en een spektrum van conutriënten, is uniek en in alle opzichten nieuw.
2. - Een toeslagprodukt, Grandos, dat een gegarandeerd snel verzurend koolhydraat-mengsel inhoud. RACOD genaamd, dat de groei van anaëroob korrelslib bevordert. De RACOD-fraktie stimuleert de groei van hydrofiele acidogenen, die zieh aan de buitenkant van de korrels bevinden en hierdoor stabielere korrels gevormd worden. De RACOD-fraktie is meetbaar op basis van een verzuringstest beschreven in de literatuur.
3. - Een toeslagprodukt, Grandos, dat een'YLv-verlagende kapaciteit heeft zoals kan aangetoond worden met de kontakthoek-methode of andere methodes die gas-vioeistof-interfase interaktie meten. Een verlaging van de oppervlaktespanning van de reaktorvloeistof heeft tot gevolg dat er steviger slibkorrels gevormd worden en een stabieler proces bekomen wordt.
4. - Een toeslagprodukt, Grandos, dat een spektrum van minerale en organische co-nutrienten bevat, zoals een produktanalyse kan aantonen. Het toeslagprodukt verbetert hierdoor de algemene mikrobiële aktiviteit en verhoogt aldus de zuiveringskapaciteit.
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Het is belangrijk de omstandigheden waarbij een goede korrel- vorming optreedt te optimaliseren. Grandos is een toeslagprodukt dat deze omstan- digheden beïnvloedt, waardoor het een invloed heeft op de korrelvorming en de samenstelling van de slibkorrel. Het is dus een bio-stimulerend supplement.
Grandos bevat een breed spektrum van essentiële minerale nutrienten, wat bevorderlijk is voor de korrelvorming. De verschillende bakteriën kunnen, onder de geschikte omstandigheden, optimaal groeien. Hierdoor worden meer glykokalyxen gevormd en zitten de bakteriën meer in elkaar verweven waardoor de densiteit van de slibkorrels hoger is en de mechanische weerstand en strukturele stabiliteit verbetert, waardoor het slib beter in de reaktor kan gehouden worden.
Een ander belangrijk gegeven in de korrelslibvorming is de aanwezigheid van een voldoende hoeveelheid energierijke en snel verzurende koolhydraatfraktie. Niet voorverzuurde waters geven eerder aanleiding tot korrelvorming in vergelijking met waters waar de koolhydraten reeds omgezet zijn naar vluchtige vetzuren. Grandos bevat een RACOD-fraktie (Rapidly Acidifiable COD) die een positieve invloed heeft op de groei van de hydrofiele acidogenen die zich in de buitenlaag van de slibkorrels nestelen ; binnenin de korrels bevinden zich dan de hydrofobe methanogenen en acidogenen. Door deze hydrofiele buitenlaag is er minder interaktie met het opstijgend biogas, wat de stabiliteit van het slib verhoogt.
Ook door een vermindering van de oppervlaktespanning van de reaktorvloeistof kan het korrelslib beter in de reaktor gehouden worden. Het toeslagprodukt, Grandos, bevat een'YLv-verlagende kapaciteit waardoor grotere slibkorrels bekomen worden met de hydrofiele acidogenen in de buitenlaag van de slibkorrels. Hierdoor gaat het slib minder snel floteren en kan het slib beter in de reaktor gehouden worden.
Het is dus duidelijk dat Grandos de werking van anaërobe reaktoren kan verbeteren door de omstandigheden te kreëren waarbij een goede korrelslibvorming plaatsgrijpt en aldus een stabieler slib bekomen wordt. Het toeslagprodukt heeft op drie vlakken een positieve invloed op het in de reaktor houden van het slib. ondanks de produktie van biogas en de stroom van het te zuiveren afvalwater doorheen de reaktor.
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CLAIMS 1. - A biostimulating aggregate, Grandos, which ensures good growth of the anaerobic granular sludge. The additive product ensures larger and better shaped granules, so that they can settle better and which makes it easier to keep the anaerobic sludge in the reactor. The operation is based on the combination of three principles as stated below. This combination of a fast-acidifying carbohydrate mixture, an Lvv-lowering capacity and a spectrum of conutrients, is unique and new in every way.
2. - An additive, Grandos, which contains a guaranteed fast-acidifying carbohydrate mixture. Called RACOD, which promotes the growth of anaerobic granular sludge. The RACOD fraction stimulates the growth of hydrophilic acidogens, which are located on the outside of the granules, thereby forming more stable granules. The RACOD fraction is measurable based on an acidification test described in the literature.
3. An additive, Grandos, which has an YLv-lowering capacity as can be demonstrated by the contact angle method or other methods that measure gas-liquid interphase interaction. A decrease in the surface tension of the reactor liquid results in firmer sludge granules being formed and a more stable process being obtained.
4. - An additive product, Grandos, which contains a spectrum of mineral and organic co-nutrients, as a product analysis can demonstrate. The additive product hereby improves the general microbial activity and thus increases the purification capacity.
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It is important to optimize the conditions under which good grain formation occurs. Grandos is an additive that influences these conditions, which has an influence on the grain formation and the composition of the sludge grain. So it is a bio-stimulant supplement.
Grandos contains a wide spectrum of essential mineral nutrients, which is beneficial for the grain formation. The different bacteria can grow optimally under the appropriate conditions. As a result, more glycocalyxes are formed and the bacteria are more interwoven, so that the density of the sludge granules is higher and the mechanical resistance and structural stability improves, so that the sludge can be better kept in the reactor.
Another important fact in the granular sludge formation is the presence of a sufficient amount of energy-rich and rapidly acidifying carbohydrate fraction. Non-acidified waters are more likely to give rise to grain formation compared to waters where the carbohydrates have already been converted into volatile fatty acids. Grandos contains a RACOD (Rapidly Acidifiable COD) fraction which has a positive influence on the growth of the hydrophilic acidogens that settle in the outer layer of the sludge granules; inside the granules are then the hydrophobic methanogens and acidogens. Due to this hydrophilic outer layer, there is less interaction with the rising biogas, which increases the stability of the sludge.
The grain sludge can also be better kept in the reactor by reducing the surface tension of the reactor liquid. The aggregate, Grandos, contains an YLv-lowering capacity, whereby larger sludge granules are obtained with the hydrophilic acidogens in the outer layer of the sludge granules. As a result, the sludge floats less quickly and the sludge can be better kept in the reactor.
It is thus clear that Grandos can improve the performance of anaerobic reactors by creating the conditions under which good granular sludge formation takes place and thus a more stable sludge is obtained. The additive product has a positive effect in three areas on keeping the sludge in the reactor. despite the production of biogas and the flow of the wastewater to be purified through the reactor.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9600147A BE1011422A4 (en) | 1996-02-21 | 1996-02-21 | An anaerobic flake-supporting agent for the improvement of the functioning of an anaerobic water purification system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9600147A BE1011422A4 (en) | 1996-02-21 | 1996-02-21 | An anaerobic flake-supporting agent for the improvement of the functioning of an anaerobic water purification system |
Publications (1)
Publication Number | Publication Date |
---|---|
BE1011422A4 true BE1011422A4 (en) | 1999-09-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE9600147A BE1011422A4 (en) | 1996-02-21 | 1996-02-21 | An anaerobic flake-supporting agent for the improvement of the functioning of an anaerobic water purification system |
Country Status (1)
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BE (1) | BE1011422A4 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2041483A5 (en) * | 1969-04-25 | 1971-01-29 | Realisations Tech | Treatment of used water |
EP0299369A2 (en) * | 1987-07-17 | 1989-01-18 | Henkel Kommanditgesellschaft auf Aktien | Decentralized clarification process |
DE4223945A1 (en) * | 1992-07-21 | 1994-01-27 | Rhenus Wilhelm Reiners Gmbh & | Accelerating microbiological purificn. of waste water - contg coolant lubricants by addn of phospholipid to water |
EP0646549A1 (en) * | 1993-10-01 | 1995-04-05 | CAFFARO S.p.A. Società per l'Industria Chimica ed Elettrochimica | Process for treating industrial wastewater with flocculants constituted by nitrates or basic nitrates of trivalent metals |
-
1996
- 1996-02-21 BE BE9600147A patent/BE1011422A4/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2041483A5 (en) * | 1969-04-25 | 1971-01-29 | Realisations Tech | Treatment of used water |
EP0299369A2 (en) * | 1987-07-17 | 1989-01-18 | Henkel Kommanditgesellschaft auf Aktien | Decentralized clarification process |
DE4223945A1 (en) * | 1992-07-21 | 1994-01-27 | Rhenus Wilhelm Reiners Gmbh & | Accelerating microbiological purificn. of waste water - contg coolant lubricants by addn of phospholipid to water |
EP0646549A1 (en) * | 1993-10-01 | 1995-04-05 | CAFFARO S.p.A. Società per l'Industria Chimica ed Elettrochimica | Process for treating industrial wastewater with flocculants constituted by nitrates or basic nitrates of trivalent metals |
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Date | Code | Title | Description |
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RE | Patent lapsed |
Effective date: 20050228 |
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RE | Patent lapsed |
Effective date: 20050228 |