Composition for the waste disposal of hydrocarbons and various industrial waste by biological degradation.

There is described various compositions for absorbing pollutant waste and to accelerate their biological degradation by avoiding the fermentations offensive.

Industrial waste disposal pollutants including hydrocarbons has been explored extensively.

Various methods and compositions have been recommended that all have drawbacks:

- the dispersants and emulsifiers dilute hydrocarbons and this can lead to serious disturbance to the biological balance.

- the products alourdisseurs precipitate the hydrocarbons on the funds by giving agglomerates that are only very slowly destroyed by the microorganisms, further, this decomposition is by anaerobic organisms that can release toxic substances for flora and fauna.

To accelerate the biodegradation of waste and for counteracting disadvantages compositions known hitherto, the invention contemplates the use of compositions containing from ten to forty percent by weight of a metal oxide and/or a peroxide of an alkali metal.

The metal oxide may be iron oxide, manganese dioxide or zinc oxide.

The oxygen supply thus obtained allows a significantly more favorable aerobic fermentation to biological degradation and completely free of offensive odor.

Oxygenating the body is simply mixed with a carrier that solely depends on the pH of the waste for disposal.

In the case of acidic waste, the oxygenating is mixed with natural or precipitated calcium carbonate.

For alkalines, the support used is an acid salt, for example by acid magnesium metasilicate or talc.

Finally, in the case of waste neutral or if for any reason, it is preferable not to modify the initial pH, a neutral carrier, such as silica or diatomaceous earth natural is used.

When the waste liquid, these compositions have the further interest of be absorbent.

For waste hydrocarbon, the absorption may be accelerated by the addition, in a proportion of 5 to 15% *, of utteolêophile material such as a fatty acid (stearic, palmitic, oleic or adipic).

Further, for accelerating the process of biological degradation, the invention contemplates the addition, in a proportion of 10 to 30%, a food substance to the growth of microrganisms by both the uptake of food that by the D.¹ trace elements of growth. These substances may be, for example, liquor corn, residues malt house, of mixed andc....

Finally, enhance degradation in the case of hydrocarbons, it is advantageous to add 2 to 10% of nitrogen in the form of NH, or nh4 nh2. This addition may be performed, for example, by the addition of urea, or phosphate, nitrate or ammonium sulfate,

The following compositions are exemplary and cannot in any way be considered as a limitation of the invention.

For acidic waste *: " -•

For waste neutral:

9 to 16) compositions obtained by replacing in the exempies1 to 8 calcium carbonate or talc by silica natural. As mentioned above, all formulations may be added with 10 to 30% of a food substance GTs/or for waste hydrocarbon, 1593 of an oleophilic substance, thus, for example that:

A - 50 liters of wastewater being treated with deont10 kg of the following mixture:

in Doidstalcpartiesmanganèseparties dioxide by weight liquor maïsparties - wt.

At the end of thirty days, the fermenting dégradationcomplète without any offensive do is developed.

B - 10o GR of crude oil spilled to lari ' a vessel 10 liters of seawater were absorbed and precipitated by pouring 100 g of the following mixture:

precipitated calcium carbonate

zinc oxide

malt extract

stearic acid

ammonium phosphate

After ten days, liabilities were plusodor hydrocarbon and any offensive odor had

C - 500 gr of light heating oil spilled onto unen cement have been.

500 gr absorbed with the following mixture:

Earth infusoirepartiesmanganèseparties dioxide by weight weight weight weight mélassepartiesuréepartiesstéariqueparties acid by weight

The fuel has been fully absorbed and unbalayage left the floor clean. The mixture fuel oil/composition has been picked up and poured into 20 liters of fresh water. After twelve days there was more smell of fuel oil and aucunenauséabonde had developed.

parts by weight parts by weight parts by weight parts by weight parts by weight