Method for performing advanced treatment and reuse on oil-refining sewage and matched device

A technology for refining sewage and advanced treatment, applied in the field of water treatment, can solve the problem of high treatment cost

Active Publication Date: 2011-06-29
贵州筑信水务环境产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of electricity charges for water intake and pumping stations, acid-base procurement costs, acid-base wastewater treatment costs, resin replacement costs, etc. make the cost of treatment very high

Method used

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  • Method for performing advanced treatment and reuse on oil-refining sewage and matched device
  • Method for performing advanced treatment and reuse on oil-refining sewage and matched device
  • Method for performing advanced treatment and reuse on oil-refining sewage and matched device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1 The supporting device for the treatment of oil refinery sewage

[0056] Such as figure 2 A supporting device for treating oil refinery sewage shown in , which includes a raw water tank 1 , a pretreatment device 2 and a post-treatment device 3 connected in sequence.

[0057] Wherein, the pretreatment device 2 includes a pipeline mixing device 21 , a multimedia filter device 22 , an ozone treatment device 23 and a biological activated carbon filter device 24 connected in sequence.

[0058] Wherein, the post-processing device 3 includes a self-cleaning filter device 31 , an ultrafiltration device 32 , a precision filter device 33 , a reverse osmosis device 34 , a pure water pool 35 and an anion-cation exchange bed 36 connected in sequence.

[0059] Wherein an intermediate pool 37 is also provided between the ultrafiltration device 32 and the precision filtration device 33 .

[0060] The ozone treatment device 23 is composed of an air source ozone generator ...

Embodiment 2

[0068] Example 2 Using the supporting equipment in Example 1 to treat the refinery sewage of Sinopec Tahe Branch

[0069] The source of the refinery sewage used in this example is: the refinery sewage of Sinopec Tahe Branch, which has undergone degreasing, traditional biochemical, and advanced biochemical treatment before; the impurities contained in it mainly include: COD, NH 3 -N, SS, oil, etc. The specific implementation steps are as figure 1 shown in .

[0070] 1. Advanced treatment process of oil refinery wastewater:

[0071] During the advanced treatment of oil refinery sewage, the oil refinery sewage first enters the raw water pool 1, then enters the pipeline mixing device 21 from the raw water pool 1, and adds a flocculant basic aluminum chloride flocculant (throwing agent) into the pipeline mixing device 21. The dosage is 3~10ppm) and the oxidant sodium hypochlorite (the dosage is 1~5ppm).

[0072] The sewage after adding flocculant and oxidant enters the multimed...

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Abstract

The invention belongs to the technical field of water treatment and in particular relates to a method for performing advanced treatment and reuse on oil-refining sewage and a matched device. The advanced treatment and reuse method comprises the following steps of: performing preoxidation flocculation filtering on effluent (pressure flow) from a sewage treatment field by using a multi-medium filter; allowing the filtered water to enter an ozone-biological active carbon unit; decomposing, degrading, and removing pollutants such as organic matters and the like by utilizing a chemical oxidation reaction principle and a biological reaction mechanism; allowing the obtained water to enter a UF-RO desalination system and a conventional anion-cation exchange bed system successively and then reusing continuously. After being treated by the method, the effluent meets various indexes of reuse water; treatment cost of acid and alkaline wastewater is reduced; service life of resin is prolonged; and advantages of economic and environmental benefits are obvious, in particular, the social benefit is more obvious in water-deficient areas.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a method for advanced treatment and reuse of oil refinery sewage and a supporting device. Background technique [0002] my country has a large population and water resources are scarce. As an oil refinery with huge water consumption, water conservation and emission reduction have been highly valued by government departments and enterprises; therefore, how to treat sewage in a targeted manner to meet process production requirements and realize resource reuse has become a current research topic. One of the hot issues. [0003] When the petrochemical plant is in an accident state, the oil and organic matter in the effluent of the sewage treatment plant will exceed the standard, and the damage to the reverse osmosis membrane is devastating. This is also the main reason why the membrane system for this type of sewage cannot operate normally. The quality of crude ...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F1/72C02F1/52C02F1/78C02F3/10C02F1/44C02F1/42
CPCY02A20/131Y02W10/10
Inventor 王怡陈东叶方清王光张大鹏
Owner 贵州筑信水务环境产业有限公司
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