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Morpholine-containing wastewater treatment process

A technology for treating process and wastewater, applied in water/sewage treatment, special compound water treatment, light water/sewage treatment, etc. , low operating cost, and the effect of improving the treatment effect

Active Publication Date: 2020-11-13
四川鸿鹏新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Application number CN201110063390.3 discloses a method for treating high-concentration morpholine wastewater. The biodegradation stage in the combined treatment process includes a hydrolytic acidification stage, a primary anaerobic / aerobic stage, a secondary anaerobic stage, and a secondary Aerobic stage; however, the operating cost of this method is very high, and the multi-stage treatment is not only cumbersome and occupies a large area, but also requires better operating and management conditions; application number CN201710291682.X discloses a high-concentration morpholine The treatment method of wastewater mainly adopts relatively cheap sodium hypochlorite solution to perform advanced oxidation on high-concentration morpholine wastewater. However, this technical method will produce harmful by-products such as chloramine during the catalytic oxidation of sodium hypochlorite, which will affect the environment. Causes great harm, there is secondary pollution, and generally requires further advanced treatment

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  • Morpholine-containing wastewater treatment process

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Effect test

Embodiment 1

[0041] A treatment process for morpholine wastewater, comprising the following steps:

[0042] S1. Pretreatment: remove the suspended solids in the wastewater by membrane filtration, and adjust the pH value of the wastewater to 6;

[0043] S2. Photocatalysis: Combine wastewater with Cu-X-TiO 2 The catalyst performs photocatalytic reaction in the photocatalytic tower;

[0044] Specifically, a gas collecting device, an ultraviolet irradiation lamp, a photocatalyst layer, a spray device, and a sundry storage chamber are sequentially arranged in the photocatalytic tower from top to bottom; the side wall of the photocatalytic tower is provided with a liquid inlet, and the liquid inlet The port is arranged on one side of the spray device and communicated with the liquid storage cylinder through a pipeline; the side wall of the photocatalytic tower is also provided with a liquid outlet, and the liquid outlet is arranged under the spray device and communicated with the liquid storage...

Embodiment 2

[0047] A treatment process for morpholine wastewater, comprising the following steps:

[0048] S1. Pretreatment: remove the suspended solids in the wastewater by activated carbon adsorption, and adjust the pH value of the wastewater to 7;

[0049] S2. Photocatalysis: Combine wastewater with Cu-X-TiO 2 The catalyst performs photocatalytic reaction in the photocatalytic tower;

[0050] Specifically, a gas collecting device, an ultraviolet irradiation lamp, a photocatalyst layer, a spray device, and a sundry storage chamber are sequentially arranged in the photocatalytic tower from top to bottom; the side wall of the photocatalytic tower is provided with a liquid inlet, and the liquid inlet The port is arranged on one side of the spray device and communicated with the liquid storage cylinder through a pipeline; the side wall of the photocatalytic tower is also provided with a liquid outlet, and the liquid outlet is arranged under the spray device and communicated with the liquid...

Embodiment 3

[0053] A treatment process for morpholine wastewater, comprising the following steps:

[0054] S1. Pretreatment: remove the suspended solids in the wastewater by filtering through a filter, and adjust the pH value of the wastewater to 8;

[0055] S2. Photocatalysis: Combine wastewater with Cu-X-TiO 2 The catalyst performs photocatalytic reaction in the photocatalytic tower;

[0056] Specifically, a gas collecting device, an ultraviolet irradiation lamp, a photocatalyst layer, a spray device, and a sundry storage chamber are sequentially arranged in the photocatalytic tower from top to bottom; the side wall of the photocatalytic tower is provided with a liquid inlet, and the liquid inlet The port is arranged on one side of the spray device and communicated with the liquid storage cylinder through a pipeline; the side wall of the photocatalytic tower is also provided with a liquid outlet, and the liquid outlet is arranged under the spray device and communicated with the liquid ...

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Abstract

The invention relates to the field of morpholine production, and discloses a morpholine-containing wastewater treatment process, which comprises: S1, pretreatment: removing suspended solids in wastewater through a physical method or a chemical method, and adjusting the pH value of the wastewater to 6-8; S2, photocatalysis: carrying out a photocatalysis reaction on the wastewater and modified nanoTiO2 to remove ammonia nitrogen and other organic matters in the wastewater; and S3, resin adsorption: adsorbing the treated wastewater by utilizing modified resin. The morpholine-containing wastewater treatment process is low in operation cost and small in occupied area, and the operation cost is greatly saved; and no harmful by-product is generated after wastewater treatment, so that the morpholine-containing wastewater treatment process is relatively environment-friendly.

Description

technical field [0001] The invention relates to the technical field of morpholine production, in particular to a treatment process for morpholine-containing wastewater. Background technique [0002] Morpholine, also known as morpholine or 1,4-oxazepine, molecular formula C 4 h 9 NO, one of the important cyclic amines used in industry, is a colorless water-absorbing oily liquid, and is a mild base. Morpholine occupies an important position in chemical production, and is an intermediate in the manufacture of many fine chemical products. It is widely used in the fields of rubber, medicine, pesticides, dyes, etc. [0003] Morpholine production wastewater belongs to high ammonia nitrogen and high concentration organic wastewater, and contains organic substances including morpholine, methylmorpholine, ethylmorpholine, benzene, alcohols, etc. Biochemical method is the most economical and effective wastewater treatment method, but because morpholine organic matter has the charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/30C02F101/38
CPCC02F9/00C02F1/66C02F1/32C02F1/285C02F2101/30C02F2101/38C02F2305/10C02F1/725Y02W10/37
Inventor 黄凤翔杨俊袁波石飞
Owner 四川鸿鹏新材料有限公司
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