Biosurfactant for oil reduction of oil sludge

A technology of biological active agent and non-ionic active agent, applied in the field of compound biological active agent, can solve the problems of low elution efficiency, high configuration cost, difficult configuration, etc. Effect

Inactive Publication Date: 2019-08-16
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low elution efficiency, diffic

Method used

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  • Biosurfactant for oil reduction of oil sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Example experiment 1:

[0008] Take 5g of Xinjiang oil sludge, air-dry, remove large impurities, crush, and sieve

[0009] Weigh 34.00mg of saponin, 5.00mg of rhamnolipid and 240mg of carboxamide with a precision balance according to the weight ratio, and mix the powder and liquid into a clean beaker.

[0010] Add 111.6ml of distilled water and stir thoroughly with a clean glass rod.

[0011] Obtain the finished product, obtain 20g reagent with precision balance.

[0012] Mix the treated sludge and reagents, stir evenly, and put them into a conical flask.

[0013] Place the Erlenmeyer flask in a water bath at 60°C, adjust the stirring speed to 100r / min, set the heat washing time to 30min, then take it out and let it stand still.

[0014] After standing still, the sample was centrifuged in a centrifuge at a speed of 5000r / min for 10 minutes to realize the three-phase separation of oil, liquid and solid.

[0015] Take out the solid matter and let it dry naturally in a...

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Abstract

The invention discloses a compound surfactant which is prepared from two biosurfactants, rhamnolipid and saponin, according to a certain proportion. According to the proportion, the two surfactants are compounded and prepared according to a simple method and then the mixture is mixed with oil sludge in an oil field with the oil content of 11.61%, and then vibration, centrifugation, supernatant removal and air drying are carried out according to specified steps; wherein the residual rate of petroleum hydrocarbon is as low as 4.39%. Compared with a chemical surfactant adopted in the current engineering, the compound surfactant is cleaner, low in toxicity and low in cost.

Description

technical field [0001] The invention provides a compound bioactive agent for eluting oil sludge. Compared with single-component active agents, it improves the sludge washing efficiency under the premise of low cost and low configuration difficulty. Background technique [0002] Most of the currently used surfactants are chemical surfactants, which have a high critical micelle concentration (CMC), poor solubilization effect, and are rarely biodegradable, causing environmental pollution. The surfactants described in the present invention are all biosurfactants. Because they are produced from microorganisms, the reaction products are relatively uniform and easily biodegradable. At the same time, new chemical groups can be produced, which can be combined with petroleum hydrocarbon molecules to form more biosurfactants. Stable micelle structure; in addition, due to the insertion of nonionic surfactants, it forms mixed micelles with anionic surfactants in the solution, which weak...

Claims

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Application Information

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IPC IPC(8): C02F11/00
CPCC02F11/00
Inventor 李薇宋瑶付凌波王晓峰陈晨
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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