NL1023299C2 - Dry formulation for use in chemical toilets comprises a nitrate, a thiol-neutralizing preservative and a pH buffer - Google Patents
Dry formulation for use in chemical toilets comprises a nitrate, a thiol-neutralizing preservative and a pH buffer Download PDFInfo
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- NL1023299C2 NL1023299C2 NL1023299A NL1023299A NL1023299C2 NL 1023299 C2 NL1023299 C2 NL 1023299C2 NL 1023299 A NL1023299 A NL 1023299A NL 1023299 A NL1023299 A NL 1023299A NL 1023299 C2 NL1023299 C2 NL 1023299C2
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- nitrate
- preservative
- thiol
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- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 238000009472 formulation Methods 0.000 title claims abstract description 33
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910002651 NO3 Inorganic materials 0.000 title claims abstract description 22
- 239000003755 preservative agent Substances 0.000 title claims abstract description 16
- 230000002335 preservative effect Effects 0.000 title claims abstract description 16
- 239000000126 substance Substances 0.000 title claims abstract description 16
- 239000006174 pH buffer Substances 0.000 title claims abstract 5
- 239000002699 waste material Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 241000894006 Bacteria Species 0.000 claims abstract description 3
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 3
- 241000233866 Fungi Species 0.000 claims abstract 2
- 239000000843 powder Substances 0.000 claims abstract 2
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical group OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 claims description 17
- 229960003168 bronopol Drugs 0.000 claims description 14
- 125000003396 thiol group Chemical class [H]S* 0.000 claims description 11
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 4
- 239000002304 perfume Substances 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 16
- 239000002253 acid Substances 0.000 claims 15
- 150000003839 salts Chemical class 0.000 claims 15
- 150000007513 acids Chemical class 0.000 claims 9
- 230000003139 buffering effect Effects 0.000 claims 9
- 230000003472 neutralizing effect Effects 0.000 claims 9
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 3
- 239000011575 calcium Substances 0.000 claims 3
- 229910052791 calcium Inorganic materials 0.000 claims 3
- 239000011777 magnesium Substances 0.000 claims 3
- 229910052749 magnesium Inorganic materials 0.000 claims 3
- 235000010333 potassium nitrate Nutrition 0.000 claims 3
- 239000004323 potassium nitrate Substances 0.000 claims 3
- 239000007864 aqueous solution Substances 0.000 claims 2
- 125000002091 cationic group Chemical group 0.000 claims 2
- XIBIADJKGLWYMV-UHFFFAOYSA-N 1-bromo-2-nitropropane-1,3-diol Chemical compound OCC(C(O)Br)[N+]([O-])=O XIBIADJKGLWYMV-UHFFFAOYSA-N 0.000 claims 1
- 239000003945 anionic surfactant Substances 0.000 claims 1
- 239000007853 buffer solution Substances 0.000 claims 1
- 239000003093 cationic surfactant Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 14
- 235000019645 odor Nutrition 0.000 description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 210000003608 fece Anatomy 0.000 description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000010871 livestock manure Substances 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000008237 rinsing water Substances 0.000 description 4
- 230000000855 fungicidal effect Effects 0.000 description 3
- 239000008240 homogeneous mixture Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000035943 smell Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229960004106 citric acid Drugs 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- YFNXWBPNBVLTMB-UHFFFAOYSA-N 2-bromo-2-nitro-1,4-dioxane Chemical compound [O-][N+](=O)C1(Br)COCCO1 YFNXWBPNBVLTMB-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000248349 Citrus limon Species 0.000 description 1
- 241000605739 Desulfovibrio desulfuricans Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000007979 citrate buffer Substances 0.000 description 1
- 229960002303 citric acid monohydrate Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 230000007483 microbial process Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- VZORGPCQYCYZLZ-UHFFFAOYSA-E nonasodium;2-hydroxypropane-1,2,3-tricarboxylate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O VZORGPCQYCYZLZ-UHFFFAOYSA-E 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
- A61L9/05—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating specially adapted to be released by contact with a liquid, e.g. for toilets
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Detergent Compositions (AREA)
Abstract
Description
a >a>
Droge formulering voor chemische toiletten.Dry formulation for chemical toilets.
Indien een fecaliën/urine mengsel tijdelijk opgeslagen wordt, zoals in een chemisch toilet, zullen na verloop van tijd hinderlijke geuren ontstaan. S.F. Spoelstra (1980) beschreef dat stankcomponenten in waterige mest ontstaan door vele anaërobe microbiële processen. Het 5 is goed om in dit verband onderscheid te maken tussen anaëroob en anoxisch. Met anaëroob wordt de afwezigheid van zowel zuurstof als nitraat bedoeld, anoxisch betekent dat er geen opgelost zuurstof (02) meer is maar wel gebonden zuurstof als nitraat (N03). Het gebruik van nitraten als geurreducerend mestadditief is al lange tijd bekend (Cole et all. 1976). De aanwezigheid van voldoende nitraat voorkomt onder andere de reductie van 10 sulfaat tot (waterstofsulfide.If a faeces / urine mixture is stored temporarily, such as in a chemical toilet, annoying odors will arise over time. S.F. Spoelstra (1980) described that odor components in aqueous manure arise from many anaerobic microbial processes. It is good to distinguish between anaerobic and anoxic in this context. By anaerobic is meant the absence of both oxygen and nitrate, anoxically means that there is no longer dissolved oxygen (O2) but there is bound oxygen as nitrate (NO3). The use of nitrates as an odor-reducing fertilizer additive has been known for a long time (Cole et al. 1976). The presence of sufficient nitrate prevents, among other things, the reduction of sulfate to (hydrogen sulfide).
EP0559272 (ingetrokken) door Norsk hydro beschrijft het gebruik van nitraat in mest om emissie van gassen, voornamelijk zwavelwaterstof, uit mest te beperken.EP0559272 (withdrawn) by Norsk hydro describes the use of nitrate in manure to limit emissions of gases, mainly hydrogen sulphide, from manure.
Omdat er in een afvaltank geen sprake is van een homogeen mengsel en nitraat niet de al aanwezige geurstoffen neutraliseert, is alleen nitraat meestal niet voldoende om IS stankvorming te voorkomen of stank te bestrijden. Calciumnitraat is algemeen verkrijgbaar als plantenmeststof in een vloeibare 50% oplossing en vast in de vorm van kalksalpeter korrels. Kalksalpeter bevat naast Calciumnitraat ook een gering percentage Ammoniumnitraat en kristalwater. Bij de denitrificatie wordt o.a. carbonaat gevormd dat, afhankelijk van de pH, neer kan slaan als Calciumcarbonaat, beter bekend als kalkaanslag. 20 Traditionele additieven om stank en drukopbouw in chemische toiletten te voorkomen zijn gebaseerd op formaldehyde en andere conserveermiddelen zoals: quatemaire ammonium zouten, glutaaraldehyde, bronopol, zinkzouten en vele anderen. Aldehyden behoren tot de meest effectieve middelen omdat deze naast een bactericide en fungicide werking ook aanwezige geur chemisch neutraliseren door een complex met de gereduceerde 25 verbindingen, zoals mercaptanen en ammonia, aan te gaan. Belangrijk nadeel van formaldehyde is de schadelijkheid en de mogelijke relatie met het ontstaan van kanker.Because there is no homogeneous mixture in a waste tank and nitrate does not neutralize the odor substances already present, only nitrate is usually not sufficient to prevent IS smells or to combat odors. Calcium nitrate is generally available as a plant fertilizer in a 50% liquid solution and solid in the form of calcium nitrate granules. In addition to calcium nitrate, lime nitrate also contains a small percentage of ammonium nitrate and crystal water. During denitrification, carbonate is formed which, depending on the pH, can precipitate as calcium carbonate, better known as lime scale. Traditional additives to prevent odors and build up of pressure in chemical toilets are based on formaldehyde and other preservatives such as: quaternary ammonium salts, glutaraldehyde, bronopol, zinc salts and many others. Aldehydes are among the most effective agents because, in addition to a bactericidal and fungicidal action, these also chemically neutralize odor present by entering into a complex with the reduced compounds such as mercaptans and ammonia. A major disadvantage of formaldehyde is the harmfulness and the possible relationship with the development of cancer.
US5109805 door Laporte industries beschrijft een kattenbakvulling waaraan 2-bromo-2-nitro- 1,3-propanediol (Bronopol) is toegevoegd als effectief stank reductiemiddel.US5109805 by Laporte Industries describes a cat litter to which 2-bromo-2-nitro-1,3-propanediol (Bronopol) has been added as an effective odor reducing agent.
Naast de conserverende werking die Bronopol heeft, zou het molecuul in staat zijn de 30 oxidatie van thiolgroepen te katalyseren waardoor een actieve deodoriserende werking ontstaat. De belangrijkste zwavelhoudende stankstoffen, zoals mercaptanen, bevatten inderdaad thiol (R-S-H). Een tweede positief effect is dat Bronopol onder (zwak) alkalische omstandigheden geringe hoeveelheden formaldehyde afsplitst die, zoals reeds opgemerkt, stankmoleculen chemisch neutraliseren. Een derde effect is de hoge gevoeligheid van 35 desulfaterende bacteriën zoals Desuifovibrio vulgaris en D. desulfuricans voor Bronopol (MICIn addition to the preservative effect that Bronopol has, the molecule would be able to catalyze the oxidation of thiol groups, resulting in an active deodorizing effect. The most important sulfur-containing odors, such as mercaptans, do indeed contain thiol (R-S-H). A second positive effect is that Bronopol splits off small amounts of formaldehyde under (weak) alkaline conditions which, as already noted, chemically neutralize odor molecules. A third effect is the high sensitivity of desulfating bacteria such as Desuifovibrio vulgaris and D. desulfuricans to Bronopol (MIC
Η 6-12,5 ppm). Het is duidelijk dat Bronopol of een structuurverwante stof zoals bromonitrodioxaan als eerste keus actieve stof aangemerkt kan worden voor het gebruik als stankbestrijder in vloeibare mest.Η 6-12.5 ppm). It is clear that Bronopol or a structure-related substance such as bromonitrodioxane can be regarded as the first-choice active substance for use as a stink fighter in liquid manure.
Η EP0637577 (ingetrokken) door Agrolinz beschrijft de combinatie van een nitraat met een I 5 biocide in een middel om emissies uit mest te beperken. Hierbij wordt het effect van het I nitraat in belangrijke mate verbeterd door toevoeging van een conserveermiddel.0 EP0637577 (withdrawn) by Agrolinz describes the combination of a nitrate with an I 5 biocide in a means to limit emissions from manure. The effect of the nitrate is hereby considerably improved by the addition of a preservative.
I EP0923952 A1 door Thetford Corporation beschrijft een vloeibare formulering voor gebruik in o.a. chemische toiletten met een combinatie van nitraat en een conserveermiddel.EP0923952 A1 by Thetford Corporation describes a liquid formulation for use in, among other things, chemical toilets with a combination of nitrate and a preservative.
I WO9706834 door Thetford Corporation beschrijft een granulair nitraat product waarbij de I 10 nitraatkorrels benat worden met parfum en hierna behandeld met een droogmiddel om een vrij vloeiend homogeen product te verkrijgen.WO9706834 by Thetford Corporation discloses a granular nitrate product wherein the nitrate grains are wet with perfume and then treated with a drying agent to obtain a free-flowing homogeneous product.
I Bij het reizen met een caravan, camper dient de hoeveelheid gewicht/volume zoveel mogelijk I beperkt te blijven in verband met het gevaar van overbelading. Eén droog product, zoals de I aangeboden formulering, dat zowel voor het spoelwater als afvaltank van het ingebouwde I 15 chemisch toilet gebruikt kan worden heeft dus belangrijke voordelen. Bovendien kan een I droog product niet bevriezen. Hierdoor kan het in de winter worden gebruikt of in de caravan I of camper worden opgeslagen.I When traveling with a caravan or motorhome, the amount of weight / volume should be limited as far as possible because of the risk of overloading. One dry product, such as the formulation offered, that can be used for both the rinsing water and the waste tank of the built-in chemical toilet has important advantages. Moreover, a dry product cannot freeze. This means it can be used in the winter or stored in the caravan I or camper.
I De aangeboden formulering kan overigens ook gebruikt worden in losse kubusvormige I chemische toiletten die in gebruik zijn in tenten, vouwwagens, boten, tuinhuisjes en elke 20 andere toepassing van het chemisch toilet. Daarnaast is de aangeboden formulering I geschikt voor gebruik in bouw- of evenementtoiletten mits deze over een eigen fecaliëntank I beschikken . Hoewel afvaltanks in deze toiletten meestal belangrijk groter zijn dan de tanks I van draagbare chemische toiletten en de vast ingebouwde toiletten in caravans en campers, zijn deze belucht met een constante toevoer van zuurstof als gevolg, waardoor relatief I 25 minder actieve stoffen nodig zijn.The formulation offered can, incidentally, also be used in loose cubical I chemical toilets that are used in tents, folding trailers, boats, gazebos and any other application of the chemical toilet. In addition, the offered formulation I is suitable for use in construction or event toilets provided that they have their own sewage tank I. Although waste tanks in these toilets are usually considerably larger than the tanks I of portable chemical toilets and the permanently built-in toilets in caravans and motorhomes, they are aerated with a constant supply of oxygen as a result, whereby relatively less active substances are required.
I Diverse mengsels van Bronopol met nitraat (Kalksalpeter) bleken niet stabiel. Dit uitte zich I onder andere door het ontstaan van een sterke chloorgeur en een verkleuring van in I sommige formuleringen aanwezige kleurstof. Het toevoegen van een citroenzuur/citraat I mengsel in een verhouding van 1:1 aan een basis formulering van Bronopol en Kalksalpeter 30 bleek de droge formulering niet alleen te stabiliseren maar tevens te leiden tot een onverwachte verbetering van de geurreductie. Zonder hierbij aan theorie gebonden te willen zijn, zou de stabiliserende werking op de pH verantwoordelijk kunnen zijn voor de verbeterde werking en de stabiliteit van het granulaat. Ook bleek de citroenzuur/citraat buffer het ontstaan van kalkaanslag in de afvaltank in belangrijke mate te voorkomen. Een geringe 35 hoeveelheid van een vloeibare surfactant kon worden toegevoegd zonder dat er droogmiddel « 3 nodig was om de formulering "vloeiend” te houden hierdoor is de aangeboden formulering ook geschikt als spoelwater additief.I Various mixtures of Bronopol with nitrate (Calcium nitrate) were found to be unstable. This manifested itself, among other things, by the development of a strong chlorine odor and a discoloration of the coloring agent present in some formulations. Adding a citric acid / citrate I mixture in a ratio of 1: 1 to a basic formulation of Bronopol and Calcium nitrate was found not only to stabilize the dry formulation but also to lead to an unexpected improvement in odor reduction. Without wishing to be bound by theory, the stabilizing effect on the pH could be responsible for the improved effect and the stability of the granulate. The citric acid / citrate buffer also appeared to prevent the formation of scale deposits in the waste tank to a significant extent. A small amount of a liquid surfactant could be added without the need for desiccant to keep the formulation "fluid", which means that the formulation offered is also suitable as a rinsing water additive.
Spoelwateradditieven voor chemische toiletten moeten het water tegen bederf beschermen en bevatten surfactanten om een goede spoeling over de plastic toiletpot te geven.Flushing water additives for chemical toilets must protect the water against spoilage and contain surfactants to give a good flush over the plastic toilet bowl.
5 Bronopol heeft een goede antibacteriële werking maar een relatief zwak fungicide werking. De gevonden formulering blijkt een betere fungicide werking te hebben dan verwacht op basis van de Bronopol concentratie en hoewel wederom niet gebonden te willen zijn aan theorie, zou het nitraat in de formulering verantwoordelijk kunnen zijn voor dit effect Een zeer geringe hoeveelheid oppervlakteactieve stof bleek voldoende voor een prima spoeling 10 en het uiteenvallen van fecaliën en toiletpapier.Bronopol has a good antibacterial effect but a relatively weak fungicidal effect. The found formulation appears to have a better fungicidal effect than expected based on the Bronopol concentration and although again not wanting to be bound by theory, the nitrate in the formulation could be responsible for this effect. A very small amount of surfactant proved sufficient a good flush 10 and the breakup of faeces and toilet paper.
Niet beperkend voorbeeld van een formulering: 24,5 gram Bronopol 0,5 gram afwasmiddel Dreft citroen (anionogene, nietionogene surfactanten en parfum) 25 gram Natrium tri citraat IS 25 gram citroenzuur mono hydraat mengen tot een homogeen mengsel is verkregen 925 gram Kalksalpeter (Norsk hydro) mengen tot een homogeen mengsel is verkregen van 1000 gram.Non-limiting example of a formulation: 24.5 grams Bronopol 0.5 grams dishwashing liquid Dreft lemon (anionic, nonionic surfactants and perfume) 25 grams Sodium tri citrate IS Mix 25 grams citric acid monohydrate until a homogeneous mixture is obtained 925 grams Calcium nitrate (Norsk hydro) until a homogeneous mixture of 1000 grams is obtained.
In deze formulering werd bewust géén parfum gebruikt met als doel de werking van de 20 formulering zelf beter te kunnen beoordelen. Van deze formulering werd 60 gram gedoseerd in de opvangtank van een Porta Potti® kubusvormig toilet (ca 20 liter) waarna ca. 2 liter water werd toegevoegd. Ook werd 60 gram van de formulering in het spoelwater (15 liter) gedoseerd waarbij opviel dat al tijdens het vullen het granulaat nagenoeg geheel was opgelost. Het gehele gezin (man, vrouw, meisje (11) en jongen (8)) maakte een aantal 25 weken gebruik van het toilet in een verwarmde badkamer voor zowel ontlasting als urine. Resultaat' Het spoelwater gaf een prima benatting van de plastic Porta Potti® toiletpot en bleef volkomen helder en fris. Tijdens gebruik was er geen afvalgeur te ruiken. Na gemiddeld 3-4 dagen was het toilet vol en zelfs bij het leegmaken was er slechts een milde afvalgeur te bespeuren. De vorming van kalkaanslag kon in zeer belangrijke mate worden 30 voorkomen.In this formulation deliberately no perfume was used with the aim of being able to better assess the effect of the formulation itself. 60 grams of this formulation were dosed into the collection tank of a Porta Potti® cubic toilet (approx. 20 liters), after which approx. 2 liters of water were added. 60 grams of the formulation was also metered into the rinsing water (15 liters), whereby it was noticed that the granulate had already almost completely dissolved during filling. The entire family (male, female, girl (11) and boy (8)) used the toilet in a heated bathroom for a period of 25 weeks for both faeces and urine. Result 'The rinsing water gave a good wetting of the plastic Porta Potti® toilet bowl and remained completely clear and fresh. There was no smell of waste during use. After an average of 3-4 days the toilet was full and even when emptied, there was only a mild smell of waste. The formation of scale deposits could be prevented to a very important extent.
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Claims (27)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1023299A NL1023299C2 (en) | 2003-04-29 | 2003-04-29 | Dry formulation for use in chemical toilets comprises a nitrate, a thiol-neutralizing preservative and a pH buffer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1023299A NL1023299C2 (en) | 2003-04-29 | 2003-04-29 | Dry formulation for use in chemical toilets comprises a nitrate, a thiol-neutralizing preservative and a pH buffer |
| NL1023299 | 2003-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL1023299C2 true NL1023299C2 (en) | 2004-11-01 |
Family
ID=33550404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1023299A NL1023299C2 (en) | 2003-04-29 | 2003-04-29 | Dry formulation for use in chemical toilets comprises a nitrate, a thiol-neutralizing preservative and a pH buffer |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL1023299C2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509254A (en) * | 1966-06-13 | 1970-04-28 | Zevel Corp | Deodorizing and bactericidal compositions |
| US4007262A (en) * | 1973-04-05 | 1977-02-08 | Bowers Wayne E | Odor control compositions for use in chemical toilet systems |
| WO1997006834A1 (en) * | 1995-08-16 | 1997-02-27 | Thetford Corporation | Nitrate deodorant composition |
| WO1998027261A2 (en) * | 1996-12-17 | 1998-06-25 | The Procter & Gamble Company | Animal care system and litter with reduced malodor impression |
| EP0923952A1 (en) * | 1997-11-28 | 1999-06-23 | Thetford Corporation | Enhanced nitrate deodorant composition |
-
2003
- 2003-04-29 NL NL1023299A patent/NL1023299C2/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509254A (en) * | 1966-06-13 | 1970-04-28 | Zevel Corp | Deodorizing and bactericidal compositions |
| US4007262A (en) * | 1973-04-05 | 1977-02-08 | Bowers Wayne E | Odor control compositions for use in chemical toilet systems |
| WO1997006834A1 (en) * | 1995-08-16 | 1997-02-27 | Thetford Corporation | Nitrate deodorant composition |
| WO1998027261A2 (en) * | 1996-12-17 | 1998-06-25 | The Procter & Gamble Company | Animal care system and litter with reduced malodor impression |
| EP0923952A1 (en) * | 1997-11-28 | 1999-06-23 | Thetford Corporation | Enhanced nitrate deodorant composition |
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