PL96286B1 - METHOD OF DISPOSAL OF USED OIL EMULSIONS - Google Patents
METHOD OF DISPOSAL OF USED OIL EMULSIONS Download PDFInfo
- Publication number
- PL96286B1 PL96286B1 PL17535974A PL17535974A PL96286B1 PL 96286 B1 PL96286 B1 PL 96286B1 PL 17535974 A PL17535974 A PL 17535974A PL 17535974 A PL17535974 A PL 17535974A PL 96286 B1 PL96286 B1 PL 96286B1
- Authority
- PL
- Poland
- Prior art keywords
- oil emulsions
- centrifugation
- disposal
- used oil
- aqueous phase
- Prior art date
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
Przedmiotem wynalazku jest sposób unieszkodli¬ wiania, zuzytych, przemyslowych emulsji olejo¬ wych, majacy na celu ochrone naturalnego srodo¬ wiska czlowieka, to znaczy ochrone wód i gleby przed szkodliwym dzialaniem olejów zawartych w zuzytych emulsjach.Znany jest sposób unieszkodliwiania emulsji ole¬ jowych zmieszanych ze sciekami zawierajacymi oleje mineralne, polegajacy na podgrzaniu tych cieczy do 95°C i do których dozuje sie chlorek magnezu i chlorek sodu. Wymienione sole powo¬ duja zniszczenie stanu koloidalnego obrabianej cie¬ czy i powstanie czastek oleju zawieszonych w wo¬ dzie. Tak przygotowana ciecz odwirowuje sie na dwóch szeregowo pracujacych wirówkach. W wy¬ niku odwirowania otrzymuje sie faze wodna za¬ wierajaca oleju od 5G—150 mg/l oraz zageszczona faze olejowa.Wada opisanej metody jest to, ze dozuje sie sole powodujace szybka korozje instalacji oraz niedo¬ stateczny stopien oczyszczenia fazy wodnej, nie da¬ jacy wystarczajacego zabezpieczenia wód i gleby przed szkodliwym dzialaniem olejów.Wady powyzsze usuwa sposób wedlug wynalazku polegajacy na dozowaniu do obrabianej cieczy w miejsce MgCl2 + NaCl kwasnego fosforanu sodu (NaH2P04). Tak przygotowana ciecz podgrzewa sie do 95°C a nastepnie kieruje do wstepnego roz¬ dzialu cieczy przez odwirowanie. W wyniku wstep¬ nego odwirowania otrzymuje sie faze wodna o za- 2 wartosci oleju do 75 mg/l. Otrzymana faze wodna zadaje sie wodorotlenkiem wapnia (CaOH2) celem uzyskania osadów. Tak otrzymany roztwór kieruje sie do urzadzen oddzielajacych osad od fazy wod- nej. W koncowym wyniku otrzymuje sie faze wod¬ na o zawartosci oleju ponizej 30 mg/l. Otrzymana faza wodna moze byc zawracana do obiegu lub odprowadzana na zewnatrz bez obawy zanieczysz¬ czenia srodowiska naturalnego. io Zaleta wynalazku jest szczególnie to, ze przed¬ stawiony sposób dozowania substancji daje mozli¬ wosc celowego sterowania dodawanymi jonami, które nie powoduja korozji instalacji i pozwalaja na wysoki stopien oczyszczania wody oraz wyko- rzystywanie zageszczonej fazy olejowej dla celów energetycznych. PLThe subject of the invention is a method of neutralizing used, industrial oil emulsions, intended to protect the natural environment of man, that is, to protect water and soil against the harmful effects of oils contained in used emulsions. It is known to use a method of neutralizing mixed oil emulsions. with sewage containing mineral oils, consisting in heating these liquids to 95 ° C and to which magnesium chloride and sodium chloride are dosed. These salts destroy the colloidal state of the liquid to be treated and the formation of oil particles suspended in the water. The liquid prepared in this way is centrifuged on two centrifuges working in series. As a result of centrifugation, the water phase containing 5G-150 mg / l and a concentrated oil phase are obtained. The disadvantage of the described method is that the salts that cause rapid corrosion of the installation and the insufficient degree of purification of the water phase are dosed. The above-mentioned disadvantages are eliminated by the method according to the invention, which consists in dosing the treated liquid in place of MgCl2 + NaCl with acid sodium phosphate (NaH2PO4). The liquid prepared in this way is heated to 95 ° C and then directed to the preliminary liquid separation by centrifugation. As a result of the initial centrifugation, an aqueous phase with an oil content of up to 75 mg / l is obtained. The obtained aqueous phase is treated with calcium hydroxide (CaOH2) to obtain a precipitate. The solution thus obtained is directed to devices separating the sludge from the aqueous phase. The final result is a water phase with an oil content of less than 30 mg / l. The obtained water phase can be recycled or discharged outside without the risk of contamination of the environment. The advantage of the invention is particularly that the presented method of dosing the substances allows for targeted control of the added ions that do not cause corrosion of the plant and allow a high degree of water purification and the use of the concentrated oil phase for energy purposes. PL
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17535974A PL96286B1 (en) | 1974-11-05 | 1974-11-05 | METHOD OF DISPOSAL OF USED OIL EMULSIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17535974A PL96286B1 (en) | 1974-11-05 | 1974-11-05 | METHOD OF DISPOSAL OF USED OIL EMULSIONS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL96286B1 true PL96286B1 (en) | 1977-12-31 |
Family
ID=19969526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL17535974A PL96286B1 (en) | 1974-11-05 | 1974-11-05 | METHOD OF DISPOSAL OF USED OIL EMULSIONS |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL96286B1 (en) |
-
1974
- 1974-11-05 PL PL17535974A patent/PL96286B1/en unknown
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