SU929579A1 - Composition for purifying effluents from petroleum and petroleum products - Google Patents

Description

(5) COMPOSITION FOR CLEANING WASTE WATER FROM OIL AND PETROLEUM PRODUCTS The invention relates to sorbents for cleaning wastewater from oil and oil products and can be used for cleaning wastewater from metallurgical plants. A known composition for the purification of wastewater from oil and oil products by extraction with hydrocarbons, where gas condensate production is used as an extractant. A disadvantage of the known mixture is its low sorption capacity due to the increased content of gas condensate benzine, as well as high production cost its components. Closest to the proposed technical essence and achievable results, the mixture for purifying wastewater from oil and oil products 2, containing carbon, argilli and sulfur, in the following ratio of components, weight: Carbon 79 Sulfur 1.0 Argillite 20 The disadvantage of the known mixture is a decrease in sorption capacity due to the high content of argillite. The purpose of the invention is to increase the degree of purification of wastewater from oil and oil products. The goal is achieved by the fact that granulated blast furnace slag is additionally introduced into the composition containing carbon, mudstone and sulfur in the following ratio of components, weightD: 9.0-10.0 Argillite 1, 0-2.0 Blast-furnace 10.0-11 , 0 Carbon The rest is in a mixture of 10-1 1: the granular content of the cast blast furnace slag is explained by the best conditions nm (.orption

oil and oil products from wastewater. Blast furnace slag helps to increase the degree of purification and reduce the cost of the composition of the mixture.

A decrease in the content of granulated blast furnace slag of less than 10% leads to a decrease in the efficiency of wastewater treatment from oil and oil products due to an increase in the filtration rate of wastewater through the composition, and an increase in more than 11 also reduces the cleaning efficiency due to a decrease. no filtration capacity of the composition.

The carbon content in the composition is explained by the best conditions for wastewater purification from oil and oil. duktov. Reducing the carbon content reduces the degree of purification by reducing the constitution capacity of the composition, and an increase affects the purification by reducing filtration of the waste water through the composition. Long carbon flame coal is used as carbon.

The content of argillite in the amount does not affect the efficiency of wastewater treatment from oil and oil products. Reducing the content of argillite less than 9% reduces the degree of purification by increasing the filtration of waste water through the composition and an increase of more than 10 worsens cleaning due to the application of filters.

The content of sulfur in the amount of 1.0-2.01 does not affect the degree of purification of wastewater from oil and oil products. A decrease in the sulfur content of less than 1.0 does not affect the degree of cleaning, due to its low concentration, and an increase of more than 2.01 reduces the degree of purification due to the oxidation of sulfur and the thinning of filter parts.

A mixture of this composition is loaded into a standard filter with a loading layer height of 250-300 mm. After that, waste water polluted with oil and oil products is passed through. As the degree of purification deteriorates, the oil sorbed composition is replaced with a new one.

The flow rate of the composition is 1 ton per 100 m of waste water. The content of oil and oil products in the waste water is 150-200 mg / l. The degree of purification is 99-100.

EXAMPLE 1. Under laboratory conditions, a filter is loaded with a height.

loading layer 10 cm of the following composition, weight .:

Blast furnace slag 10

Argillite9

Sulfur 1, 0

CarbonEverything Else

After passing through a filter of waste water in an amount of 3 m, contaminated with oil and oil products at a concentration of 100-150 mg / l, almost pure water is obtained - purification degree 99.

Example 2. In the laboratory, under the same conditions, 5 waste water is filtered through a mixture of the following composition, weight:

Blast furnace slag 10.5

Argillit9) 5

Sulfur 1.5

0 CarbonEverything Else

After the end of the experiment, no oil and oil products were detected in the filtrate. The degree of purification is 100 / ;.

Example 3. In the laboratory, at 5 of the same conditions, waste water is filtered through a mixture of the following composition, wt.%:

Blast furnace slag11

Argillite10

Sulfur. 2.0

CarbonEverything Else

After the end of the experiment, no oil and oil products were detected in the filtrate. Degree of cleaning 100.

According to a known method, after passing through a sewage filter in an amount of 5 m contaminated with oil and oil products, a concentration of 100-150 ml / g is obtained.

The use of the proposed composition for the treatment of wastewater from oil and oil products allows to increase the degree of purification, reduce the cost of the mixture and expand the base of sorption materials.

The economic effect of using the invention only in the conditions of the rolling shop of the Communard Metallurgical Plant is 300 thousand rubles. per year by reducing the cost of the composition. 0

Claims (1)

Invention Formula The wastewater treatment composition 5 from petroleum and petroleum products containing carbon, mudstone and sulfur, characterized in that, in order to increase the degree of purification, additional 5.929579 It contains granulated do-1. USSR author's certificate variable slag in the following ratio Vf, cl. C 02 C 5/02, 197. componentor, weightD: Argillite 9.0-10.02, Ettinger I.L., Shulman N.V., Sulfur 1.0-2.0s Radchenko SA, Shlapakova E.I., and MurDom slag 10.0-11.0 Zagulova Ye.A. The use of fossil carbon The rest of coal for water purification from carbon-dioxide sources of information, antennas.- Chemistry and technology of water, taken into account during examination1980, 1f1, pp.12-15