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Composite degreaser

A technology of degreasing agent and water purifying agent, which can be used in oil/oily substance/float removal device, flocculation/sedimentation water/sewage treatment, liquid separation, etc. Complex preparation and other problems, to achieve the effect of high oil removal efficiency, low cost and simple preparation

Inactive Publication Date: 2009-01-21
洛阳新普石化设备开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this invention are its complex preparation, high price, unreasonable charge distribution and unsatisfactory degreasing effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The present embodiment is made of the following components in weight ratio: liquid nano water purifying agent 20%, aluminum sulfate 40%, magnesium chloride 15%, magnesium hydroxide 15%, diatomaceous earth is 5%, polyacrylamide (cation, molecular weight 12 million) 5%.

[0013] The preparation method of this example is to pulverize and mix the above-mentioned components at room temperature according to the traditional process.

[0014] The example that present embodiment is specifically applied to industrial sewage treatment is as follows: certain oil refinery industrial sewage, its water quality before treatment is: oil 110mg / l, COD1201mg / l, above-mentioned flocculation degreasing agent is made into aqueous solution by 5:95 (weight) , Add the air flotation device with a pump, the addition amount is 10mg / l. After treatment, the water quality is 330mg / l COD, 28mg / l oil, and the oil removal rate reaches 72%.

Embodiment 2

[0016] The present embodiment is made of the following components in weight ratio: 15% of liquid nano water purifying agent, 70% of aluminum sulfate, 8% of magnesium chloride, 5% of magnesium hydroxide, 1.5% of bentonite, polyacrylamide (cation, molecular weight 12 million) 0.5%.

[0017] The preparation method of this example is to pulverize and mix the above-mentioned components at room temperature according to the traditional process. And can be made into 30% liquid product by stirring in the reactor with distilled water.

[0018] The example that this embodiment is specifically applied to industrial sewage treatment is as follows: the oily sewage discharged from the electric desalination device of a certain oil refinery, oil 550mg / l before treatment, COD3260mg / l, suspended solids 350mg / l, are added to the drainage pipeline with a pump, and the addition amount is 3. The above product is 30mg / l, and after the sedimentation and separation device, the water quality after trea...

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Abstract

The invention discloses a composite deoiling agent used for sewage treatment. The compositions in percentage by weight of the composite deoiling agent are 10 to 20 percent of liquid nano water purifying agent, 40 to 70 percent of aluminum sulphate, 5 to 15 percent of magnesium chloride, 4 to 15 percent of magnesium hydroxide, 1 to 5 percent of diatomite and 0.5 to 5 percent of acrylamide. The composite deoiling agent makes use of the advantages of both inorganic flocculating agent and organic flocculating agent, and is characterized in that chemical reaction is carried out during dissolution in use, and a generated novel ecological inorganic flocculating agent Al13 has high activity; meanwhile, polyacrylamide plays a role in bridging so as to increase adsorption active sites and enlarge alum particles formed by flocculation in the presence of active particles with strong adsorbability; no novel solid particle is generated during medicament dissolution, and diatomite is low in price; and the composite deoiling agent is suitable for the treatment of various oily industrial wastewater and domestic sewage which can cause severe pollution. Moreover, the composite deoiling agent has the characteristics of lower dose, high deoiling efficiency, simple preparation, low cost, and the like, and is particularly suitable for the pretreatment of various oily sewages discharged from oil refinery, oil field, and the like.

Description

technical field [0001] The invention relates to the technical field of flocculants for oily sewage treatment. It mainly relates to a compound degreasing agent. Background technique [0002] Coagulation technology is one of the most widely used technologies in wastewater pretreatment. With the increasing environmental pollution, the control and treatment of water environmental pollution has gradually attracted enough attention and made progress in all aspects. Coagulation technology can be used to remove particulate impurities in water bodies and strengthen the removal of solutes in water bodies and the solid-liquid separation of sludge. Flocculants are one of the key links in coagulation technology, and can be divided into inorganic and organic flocculants according to their chemical properties. Organic polymer flocculants can enhance adsorption bridging or coagulation and sedimentation performance, and have the characteristics of less dosage, but there are toxicity probl...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/40
Inventor 娄世松范洪波陈要君
Owner 洛阳新普石化设备开发有限公司
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