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Epoxypropane co-generation methyl tert-butyl ether wastewater treatment technology and device

A technology of methyl tert-butyl ether and propylene oxide, which is applied in the field of propylene oxide co-production methyl tert-butyl ether wastewater treatment process and its treatment equipment, can solve problems such as environmental pollution and non-compliance with national standards, and achieve The effect of increasing the residence time, reducing the use of water pumps and improving the removal rate

Active Publication Date: 2019-09-06
南京化工园博瑞德水务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The direct discharge of these waste waters will cause environmental pollution and does not meet the national standards. Therefore, it is urgent to treat this kind of waste water so that the COD content reaches the standard before discharge.

Method used

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  • Epoxypropane co-generation methyl tert-butyl ether wastewater treatment technology and device
  • Epoxypropane co-generation methyl tert-butyl ether wastewater treatment technology and device
  • Epoxypropane co-generation methyl tert-butyl ether wastewater treatment technology and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037]Embodiment: a kind of propylene oxide co-production methyl tert-butyl ether wastewater treatment process, such as figure 1 , including the following steps:

[0038] Anaerobic treatment: pass wastewater into anaerobic granules, and the inoculum amount of anaerobic granulated sludge is 45%-65% of the effective volume of the anaerobic reaction zone;

[0039] Precipitation treatment: use the isolation method to precipitate the anaerobic treated wastewater to separate out the waste residue;

[0040] Aerobic treatment: Oxygen or air is continuously blown into the wastewater after sedimentation treatment and mixed fully. The aerobic treatment adopts the activated sludge method. The sludge concentration of the activated sludge method is 3.0-6.5g / L, and the residence time of wastewater is 48 -60h;

[0041] Oxidation treatment: Pass the oxidant into the aerobic treated wastewater and mix well.

[0042] Treatment process: Propylene oxide co-production methyl tert-butyl ether was...

Embodiment 2

[0043] Embodiment 2: a kind of treatment equipment of propylene oxide co-production methyl tert-butyl ether wastewater, such as figure 2 , including treatment pool 1, treatment pool 1 includes anaerobic zone 2, sedimentation zone 3, aerobic zone 4, oxidation zone 5 and concentration zone 6, anaerobic zone 2 is located on the left side of treatment tank 1, aerobic zone 4 and oxidation zone 5 is located on the right side of the treatment pool 1, the aerobic zone 4 is located below, the oxidation zone 5 is located above, and the side of the oxidation zone 5 away from the anaerobic zone 2 is provided with a concentration zone 6. The precipitation zone 3 is located between the aerobic zone 4, the oxidation zone 5 and the anaerobic zone 2 and separates the aerobic zone 4, the oxidation zone 5 and the anaerobic zone 2.

[0044] Such as figure 2 with image 3 , the anaerobic zone 2 is filled with anaerobic particles, and the effective volume of the anaerobic particles is 45%-65%, ...

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PUM

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Abstract

The invention discloses an epoxypropane co-generation methyl tert-butyl ether wastewater treatment technology and device, and applies to the field of wastewater treatment. The epoxypropane co-generation methyl tert-butyl ether wastewater treatment device is characterized by comprising a treatment tank, and the treatment tank comprises an anaerobic area, a precipitation area, an aerobic area and anoxidation area, wherein the anaerobic area is located on the left side of the treatment tank, the aerobic area and the oxidation area are located on the right side of the treatment tank, the aerobicarea is located on the lower portion, and the oxidation area is located on the upper portion; the precipitation area is located between the aerobic area, the oxidation area and the anaerobic area andmakes the aerobic area, the oxidation area and the anaerobic area separated, partition plates are arranged on the bottom of the precipitation area in the vertical direction, the tops of the partitionplates are lower than the top of the oxidation area, and the precipitation area is divided by the partition plates into an area A and an area B. The epoxypropane co-generation methyl tert-butyl etherwastewater treatment device has the advantages that all the treatment areas are integrated into one treatment tank, the space occupation is greatly reduced, the communicating vessel principle is adopted, usage of a water pump is reduced, therefore, energy sources are saved, and the device is green and environmentally friendly.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a waste water treatment process for the co-production of propylene oxide and methyl tert-butyl ether and treatment equipment thereof. Background technique [0002] At present, the sewage discharge links in the production process of the co-production of propylene oxide and methyl tert-butyl ether by co-oxidation of propylene and isobutane are mainly as follows: the main unit peroxidation reaction system, epoxidation reaction system, tert-butanol Both the (TBA) refining system and the etherification reaction system generate wastewater, among which the etherification reaction system (MTBE one-step reactor) produces the largest amount of wastewater. Under normal production conditions, the COD is 22000~23000mg / L, and the BOD5 is 6700~6800 mg / L, TOC is 10000~11000mg / L, and TDS (dissolved solid) is about 10 g / L. [0003] In addition to the main sewage in the production process, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/36C02F101/30
CPCC02F9/00C02F3/301C02F1/52C02F1/72C02F1/001C02F2103/36C02F2101/30C02F2209/08C02F2203/006C02F2301/046C02F2301/08Y02W10/10
Inventor 石剑峰倪志伟王强林凯王文涛
Owner 南京化工园博瑞德水务有限公司