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Recycling and reusing treatment method for oily wastewater

A treatment method and reuse technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of complex treatment method and high treatment cost, achieve good stimulation effect, reduce The effect of reducing the treatment cost and the time required to treat the wastewater

Inactive Publication Date: 2019-04-09
席飞
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a recycling treatment method for oily wastewater, which solves the problem that the current oily wastewater treatment method is relatively complicated and the treatment cost is high

Method used

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Embodiment 1

[0031] A method for recycling and reusing oily wastewater provided by a preferred embodiment of the present invention comprises the following steps:

[0032] Step 1: Recover free oily wastewater through recovery equipment and send it to the treatment pool;

[0033] Step 2: by fly ash: Ca (OH) 2 is 6: 1 weight ratio prepares fly ash and Ca (OH) 2 mixture material, mixes the material with dehydrated alcohol and puts in ball mill and mixes 2h, then After drying in an oven, sinter in a muffle furnace at 400°C for 2 hours to obtain modified fly ash;

[0034] Step 3: extract 150mg / L oily wastewater from the treatment tank, add oily wastewater and modified fly ash in equal proportions according to the water-cement ratio of 20:1, stir at room temperature for 30 minutes, then stand still and filter.

[0035] Further, the fly ash in the step 2 is a third-grade fly ash produced in Huainan area, with good particle gradation, d50=38.008 μm, components including SiO2, Al2O3, Fe2O3, CaO, an...

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Abstract

The invention discloses a recycling and reusing treatment method for oily wastewater, belonging to the technical field of wastewater treatment. The method comprises the following steps: firstly recycling free-state oily wastewater, and conveying the free-state oily wastewater into a treatment tank; preparing a coal ash and Ca(OH)2 mixed material from coal ash and Ca(OH)2 in a weight ratio of 6 to1, mixing absolute ethyl alcohol with the mixed material, putting the mixture into a ball mill, mixing for 2 hours, putting the mixture into a drying tank for drying, and sintering the mixture in a muffle furnace for 2 hours, so to obtain modified coal ash; and extracting 150mg / L of the oily wastewater from the treatment tank, adding the oily wastewater and the modified coal ash in an equal proportion and in a water ash ratio of 20 to 1, stirring at the room temperature for 30 minutes, standing, and filtering. According to the recycling and reusing treatment method, the problems that a currentoily wastewater treatment method is relatively complicated and high in treatment cost are solved, the operation is simple, the cost is low, the treatment cost of the oily wastewater can be lowered, and the method has very high environmental protection values.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and relates to a recovery and reuse treatment method for oily wastewater. Background technique [0002] Energy saving and emission reduction is an important research topic in the current oil refining industry. Through years of related research, the relevant refining process has been optimized, and the environmental protection and energy saving technology has been optimized and improved to a certain extent. In recent years, the total amount of crude oil processed in my country has increased by 49.5 %, while the comprehensive energy consumption of refining has dropped by 12.1%, indicating that the energy-saving optimization of refining process has played an important role; at present, the optimization and reform of energy-saving optimization technology of refining process are mainly from the reduction of total energy There are three aspects of wastewater management; among them, the exist...

Claims

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Application Information

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IPC IPC(8): C02F1/28
CPCC02F1/281C02F2101/32
Inventor 席飞
Owner 席飞
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