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High concentration waste emulsion deep treatment system

A technology for advanced treatment of waste emulsion, applied in the field of advanced treatment system of waste emulsion, can solve the problems of complex operation of treatment technology, high energy consumption, easy corrosion of equipment, etc., and achieves easy availability of reagents, low energy consumption, and non-corrosion. The effect of the device

Inactive Publication Date: 2018-06-19
HUATIAN NANJING ENG & TECH CORP MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problems in the prior art of waste emulsion treatment technology such as complex operation, easy corrosion of equipment, and high energy consumption, the purpose of the present invention is to provide an advanced treatment system for high-concentration waste emulsion to realize the removal of pollutants in waste emulsion Low energy consumption, high efficiency, simultaneous removal

Method used

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  • High concentration waste emulsion deep treatment system
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Embodiment 1

[0037] In this embodiment, 80 L / h of waste emulsion 1 is treated: the pH is 6.5-7, the total oil concentration is 112.267 mg / L, and the COD concentration is 1516 mg / L. First, collect the waste emulsion in the water collection tank 1, control the temperature of the waste emulsion to 40°C, adjust the pH of the waste emulsion to 7, and add 80 mL / h of a mixed solution of PAC and PAM with a mass fraction of 1%, and stir well 5min, then naturally settle for 30min, and drain the lower layer of sludge. Rotate the water inlet shut-off valve 3, pressure control valve 6, and water outlet shut-off valve 8 counterclockwise to the maximum position, press the high-pressure pump 2 running button on the panel of the electric control cabinet 16, so that the high-pressure pump 2 is powered on, and the high-pressure pump 2 will turn the acid-base The waste emulsion in the adjustment tank 1 is pumped into the tubular inorganic ceramic membrane purifier 4, and then returned to the acid-base adjustm...

Embodiment 2

[0039]In this embodiment, 80 L / h of waste emulsion 2 is treated: the pH is 5.5-6, the total oil concentration is 112.267 mg / L, and the COD concentration is 1516 mg / L. First, collect the waste emulsion in the acid-base adjustment tank 1, control the temperature of the waste emulsion to 30°C, adjust the pH of the waste emulsion to 7, and add 60 mL / h of a mixed solution of PAC and PAM with a mass fraction of 1%. Stir thoroughly for 5 minutes, then settle naturally for 30 minutes, and drain the lower layer of sludge. Rotate the water inlet shut-off valve 3, pressure control valve 6, and water outlet shut-off valve 8 counterclockwise to the maximum position, press the high-pressure pump 2 running button on the panel of the electric control cabinet 16, so that the high-pressure pump 2 is powered on, and the high-pressure pump 2 will turn the acid-base The waste emulsion in the adjustment tank 1 is pumped into the tubular inorganic ceramic membrane purifier 4, and then returned to th...

Embodiment 3

[0041] In this embodiment, 80 L / h of waste emulsion 3 is treated: the pH is 6.5-7, the total oil concentration is 112.267 mg / L, and the COD concentration is 1516 mg / L. First, collect the waste emulsion in the acid-base adjustment tank 1, control the temperature of the waste emulsion to 30°C, adjust the pH of the waste emulsion to 7, and add 60 mL / h of a mixed solution of PAC and PAM with a mass fraction of 1%, fully Stir for 5 minutes, then settle naturally for 30 minutes, and drain the lower layer of sludge. Rotate the water inlet shut-off valve 3, pressure control valve 6, and water outlet shut-off valve 8 counterclockwise to the maximum position, press the high-pressure pump 2 running button on the panel of the electric control cabinet 16, so that the high-pressure pump 2 is powered on, and the high-pressure pump 2 will turn the acid-base The waste emulsion in the adjustment tank 1 is pumped into the tubular inorganic ceramic membrane purifier 4, and then returned to the ac...

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Abstract

The invention discloses a high concentration waste emulsion deep treatment system. The system at least includes: an acid-base regulating pool, which is used for adjusting the pH value of waste emulsion; a demulsification reaction stirring pool, which is used for receiving the waste emulsion subjected to pH value adjustment by the acid-base regulating pool, and adding a PAC and PAM mixed demulsification solution; an inorganic ceramic membrane purifier, which is used for receiving the liquid output by the demulsification reaction stirring pool and purifying the liquid under a pressure state. According to the invention, the PAC and PAM combination is adopted as the demulsifier, charged oil droplets, colloid, suspended matters and other large particle substances in the waste emulsion are connected by adsorption bridging effect, therefore oil and water are separated to achieve the oil-water separation purpose. Then an inorganic ceramic membrane is used as the main body separation process, and by means of physical interception, low concentration waste emulsion can flow into a purification water tank through the ceramic membrane, and the oil droplets, colloid, suspended matters and otherlarge particle substances can flow back. The high concentration waste emulsion deep treatment system provided by the invention realizes low energy consumption, high efficiency and synchronous removalof pollutants from the waste emulsion.

Description

technical field [0001] The invention belongs to the technical field of "three wastes" treatment in the metal cutting processing industry, and in particular relates to an advanced treatment system for waste emulsion. Background technique [0002] Emulsions are widely used in steel rolling, mechanical processing industries, and metal processing industries, mainly for cleaning, rust prevention, lubrication, and cooling, but must be replaced after multiple cycles. The waste emulsion has the characteristics of high COD content, high total oil content, high chroma, intermittent discharge, high pollution intensity, and complex composition. If it is discharged directly without treatment, it will cause serious harm to the ecological environment and must be treated. Only after the treatment reaches the standard can it be discharged into the municipal sewage pipe. Contents of the invention [0003] In view of the problems in the prior art of waste emulsion treatment technology such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/16
CPCC02F1/24C02F1/40C02F1/44C02F1/5245C02F1/56C02F1/66C02F3/30C02F3/34C02F9/00C02F2001/007C02F2103/16C02F2201/007C02F2301/08C02F2303/04
Inventor 吴旭鹏
Owner HUATIAN NANJING ENG & TECH CORP MCC
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