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Dynamic performance evaluation device for water purifying agent used for oily sewage

A technology for evaluating devices and water purifiers, used in measuring devices, grease/oily substances/float removal devices, water/sewage treatment, etc. Adjusting the flow rate of the incoming water, the position of the dosing agent, etc., to achieve the effect of avoiding heat loss

Active Publication Date: 2019-04-05
CNOOC TIANJIN BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device is suitable for flocculation and purification evaluation of sewage with sludge at the bottom and clear water at the top, but it is completely unsuitable for oily sewage at oilfield sites. Because of the characteristics of oily sewage itself, when water purifiers are added to sewage, its flocs sometimes drift away. At the same time, the device cannot adjust the flow rate of the incoming water, the dosing position of the medicament, the mixing degree of the medicament and the sewage, and the different water outlet heights. Performance evaluation of water purifying agent suitable for oily sewage in oil fields

Method used

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  • Dynamic performance evaluation device for water purifying agent used for oily sewage
  • Dynamic performance evaluation device for water purifying agent used for oily sewage
  • Dynamic performance evaluation device for water purifying agent used for oily sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) The oily sewage to be evaluated is introduced from the oily sewage flow regulating unit in the performance evaluation device of the dynamic oily sewage water purifying agent provided by the present invention in the oil field sewage pipeline;

[0037] 2) According to the flow velocity of the oily sewage to be evaluated at the oil field site, the flow rate of the oily sewage to be evaluated is set by the oily sewage flow adjustment unit; as shown in Table 1, the selected flow velocity of the test is 0.13m / s and 0.57m / s respectively;

[0038] 3) According to the characteristics of the water purifier and the oily sewage to be evaluated, set the amount and point of addition of the water purifier, and the dosing control unit performs the dosing operation of the water purifier; at the same time, according to the on-site pipeline of the oily sewage to be evaluated In the case of a variable oil-water separation unit, set the composition of the oil-water separation component (s...

Embodiment 2

[0049] According to the steps of Example 1, investigate the water quality treatment situation under the continuous operation of the device, select water purifier A, the concentration of the agent is 550mg / L, and set the oil-water separation component used by the variable oil-water separation unit by adjusting the sewage flow rate at the inlet. Composed of straight pipes, the treatment effect of oily sewage under different sewage flow rates was investigated. The detailed results are listed in Figure 5 and Image 6 Among them, the test results show that after 6 hours of continuous operation of the device, the suspended solids content and oil content in the treated oily sewage are basically stable, and the sewage flow rate has a significant impact on the treatment effect of the treated sewage. When the sewage flow rate is 0.13m / s The sewage treatment effect is not as good as the sewage flow rate of 0.57m / s. It can be seen that the performance evaluation device provided by the p...

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Abstract

The invention discloses a dynamic performance evaluation device for a water purifying agent used for oily sewage. According to the flow direction of the oily sewage, the device sequentially includes an oily sewage flow rate regulating unit, a dosing control unit, a variable oil-water separation unit, a simulated sedimentation unit, and a sewage storage and discharge control unit. Under the condition that actual operating working conditions of the oily wastewater in different oil fields can be simulated, the device is a dynamic evaluation device by changing different water quality, different flow rates, different drug types, different dosing concentration, different dosing positions, different oil-water separation processes, different water discharge heights to perform comprehensive measurement on the performance of the water purifying agent used for the oily sewage.

Description

technical field [0001] The invention belongs to the technical field of oily sewage treatment, and in particular relates to a performance evaluation device for a water purifying agent for dynamic oily sewage. Background technique [0002] my country is one of the countries lacking in water resources in the world, but with the rapid development of economy, the water consumption is increasing, correspondingly producing a large amount of sewage, among which a large amount of oily sewage will be produced in the process of oilfield exploitation. For the oily sewage produced in oilfields, the method of adding water purifiers is often used to purify them. However, the water quality components of each oilfield or block are complex and vary greatly, and no water purifier can be applied to all oily sewage , which requires a method or tool that can objectively and accurately evaluate the water purifier to screen out the most suitable water purifier type, dosage and dosing process parame...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/40G01N33/00
CPCG01N33/00C02F1/40C02F1/52C02F1/5281C02F2001/007
Inventor 来远王会靳晓霞高鹏孙继徐俊英李立峰陈子婧高晓蕾高磊
Owner CNOOC TIANJIN BRANCH
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