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Method for preparing adsorbent from oily sludge and method for treating industrial wastewater containing organisms by using absorbent

An industrial wastewater and adsorbent technology, which is applied in the fields of adsorbed water/sewage treatment, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problem of oily sludge turning waste into treasure, etc. The effect of simple preparation process and good industrial application prospect

Inactive Publication Date: 2015-01-28
LIAONING PETROCCHEM VOCATIONAL & TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each method has its own advantages and disadvantages, but there is no method that can turn oily sludge into treasure and effectively utilize resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] a. Dry the oily sludge in the sun for 2 days, then wash it with tap water for 5 times, then wash it with distilled water for 4 times, and finally dry the washed sludge in an oven at 105°C for 3 hours to obtain a soft sludge;

[0025] b. Dissolve the oil sludge obtained in step a with ethanol first, and then use 40% H with a mass fraction of 80°C. 3 PO 4 The solution was soaked for 8 hours for activation treatment, and the volume ratio of the amount of activator added to the sludge solution dissolved in ethanol was 1:1. Then centrifuge the activated sludge solution, wash and dry the sludge solid obtained by centrifugation, and the liquid obtained after centrifugation is an activator solution, and store the activator obtained by centrifugation in a closed container for recycling;

[0026] c. Put the oil sludge that has been activated and dried in step b in a muffle furnace. Under nitrogen, heat up to 400°C at a rate of 10°C / min, keep a constant temperature, pyrolyze for...

Embodiment 2

[0030] a. Dry the oily sludge in the sun for 2 days, then wash it with tap water for 4 times, then wash it with distilled water for 5 times, and finally dry the washed sludge in an oven at 105°C for 3 hours to obtain a soft sludge;

[0031] b. Dissolve the oil sludge obtained in step a with ethanol first, and then use ZnCl with a concentration of 3mol / L at a temperature of 70°C 2 The solution was soaked for 8 hours for activation treatment, and the volume ratio of the amount of activator added to the sludge solution dissolved in ethanol was 1:1. Then centrifuge the activated sludge solution, wash and dry the sludge solid obtained by centrifugation, and the liquid obtained after centrifugation is an activator solution, and store the activator obtained by centrifugation in a closed container for recycling;

[0032] c. Put the oil sludge that has been activated and dried in step b in a muffle furnace. Under nitrogen, heat up to 200°C at a rate of 5°C / min, keep a constant tempera...

Embodiment 3

[0036] a. Dry the oily sludge in the sun for 2 days, then wash it with tap water for 4 times, then wash it with distilled water for 5 times, and finally dry the washed sludge in an oven at 105°C for 3 hours to obtain a soft sludge;

[0037] b. Dissolve the oil sludge obtained in step a with ethanol first, and then soak it in a KOH solution with a concentration of 1mol / L for 8 hours at a temperature of 75°C for activation treatment. The amount of the activator is the same as that of the oil sludge solution dissolved in ethanol The volume ratio is 1:1. Then centrifuge the activated sludge solution, wash and dry the sludge solid obtained by centrifugation, and the liquid obtained after centrifugation is an activator solution, and store the activator obtained by centrifugation in a closed container for recycling;

[0038] c. Put the oil sludge that has been activated and dried in step b in a muffle furnace. Under nitrogen, heat up to 300°C at a rate of 8°C / min, keep a constant te...

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Abstract

The invention discloses a method for preparing an adsorbent from oily sludge and a method for treating industrial wastewater containing organisms by using the adsorbent. The preparation method comprises the following steps: using oily sludge as a raw material, drying in the sun, washing and drying; activating dry oil sludge by using an activating agent, centrifuging the oily sludge solution after treatment, washing and drying the centrifuged oily sludge solid; placing the dry oily sludge in a muffle furnace, and pyrolyzing; and cooling and grinding, screening, washing and drying to obtain the efficient adsorbent. The method for treating the industrial wastewater containing the organisms comprises the following steps: adding the adsorbent in the industrial wastewater, oscillating for 3 hours at 25 DEG C, and filtering the solution. The method disclosed by the invention has the beneficial effect that raw material is wide in source, and low in production cost; the sludge activation is performed by using a solution dipping method, and the activating agent can be reused; and the adsorbent is economic, environment-friendly and has a good industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of treatment and resource utilization of oily sludge, in particular to a method for preparing an adsorbent from oily sludge and a method for using the adsorbent to treat industrial wastewater containing organic matter. Background technique [0002] Oily sludge is the main solid waste of petroleum and petrochemical enterprises. The average annual output of oily sludge in my country is about 800,000 tons. Great waste of resources. The commonly used treatment methods are: incineration method, biological method, coking method and solvent extraction method. Each method has its own advantages and disadvantages, but there is no method that can turn oily sludge into treasure and effectively utilize resources. In view of the large amount of organic matter contained in oily sludge, it is more feasible to use oily sludge as a raw material to prepare high-efficiency carbonaceous adsorbents. [0003] The invention aims...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/30C02F1/28C02F101/30
CPCY02W10/37B01J20/02B01J20/30B01J2220/4806C02F1/281C02F2101/30
Inventor 付丹
Owner LIAONING PETROCCHEM VOCATIONAL & TECH COLLEGE
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