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High-concentration TAIC (Triallyl Isocyanurate) production wastewater treating device and treating method

A technology for the production of wastewater and treatment devices, which is applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effects of improving biodegradability, process economy and reasonableness, and good treatment effect

Inactive Publication Date: 2014-08-27
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is aimed at the deficiencies in the treatment of high-concentration TAIC production wastewater, and aims to use iron-carbon micro-electrolysis to process high-concentration TAIC wastewater to ensure that TAIC production wastewater can be effectively treated, in order to solve and alleviate the problems caused by TAIC production wastewater. Environmental Pollution

Method used

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  • High-concentration TAIC (Triallyl Isocyanurate) production wastewater treating device and treating method
  • High-concentration TAIC (Triallyl Isocyanurate) production wastewater treating device and treating method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Wastewater quality: Jiangsu Suqian Huaxing (Chemical) Co., Ltd. TAIC production workshop wastewater, CODcr is 25440mg / L, TAIC content is 1500mg / L, pH is 3.

[0034] According to the above method, the pH of TAIC production wastewater is adjusted to be 5 in the pH adjustment tank; the mass ratio of iron filings and activated carbon in the iron-carbon filler is 2:1; the activated carbon is cylindrical granular, with a cross-sectional diameter of 2 mm and a length of 3-5mm, the length of iron filings is 3-5mm; the reaction time of wastewater in the iron-carbon micro-electrolysis reactor is 2h; the ratio of aeration to water is 6:1.

[0035] The CODcr removal rate of the treated TAIC wastewater effluent is more than 46%, and the TAIC removal rate is more than 48%, and the biodegradability is also greatly improved.

Embodiment 2

[0037] Same as in Example 1, except that the mass ratio of iron filings and activated carbon in the iron-carbon filler in Example 1 was changed to 1:1, the CODcr removal rate of the treated TAIC wastewater effluent was 38.2%, and the TAIC removal rate was 35.2%.

Embodiment 3

[0039] Same as in Example 1, except that the mass ratio of iron filings and activated carbon in the iron-carbon filler in Example 1 was changed to 3:1, the CODcr removal rate of the treated TAIC wastewater effluent was 35.3%, and the TAIC removal rate was 37.5%.

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Abstract

The invention discloses a high-concentration TAIC production wastewater treatment device and a treatment method thereof. The device includes an acid-base pool, a pH adjustment pool and a micro-electrolysis reactor. During treatment, the acid or alkali in the acid-base pool is used to adjust the pH adjustment pool. After the high-concentration TAIC production wastewater has a pH value of 2 to 6, it is passed into the micro-electrolysis reactor and aerated by the air distributor. The micro-electrolysis reaction is carried out through the packing area. The reaction time is 2 to 5 hours, and then filtered and filtered by the filter area. After overflowing from the overflow weir in the water outlet area, it is discharged through the outlet pipe. The device and method of the present invention are economical and reasonable for treating TAIC production wastewater, are easy to apply in engineering, can better degrade TAIC pollutants, greatly improve the biodegradability of TAIC wastewater, and improve better water quality for subsequent biochemical treatment of TAIC wastewater. Base.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to a high-concentration TAIC production waste water treatment device and treatment method. Background technique [0002] The scientific name of TAIC is 1.3.5-triallyl-s-triazine-2.4.6(1H.3H.5H)-trione, also known as triallyl isocyanurate or triallyl isocyanuric acid ester. TAIC is a multifunctional olefin monomer containing aromatic heterocycles, mainly used as modifiers, crosslinking agents and co-curing agents for various thermoplastics, ion exchange resins and special rubbers, as well as light-curing coatings and photoresists. It is a fine chemical product with a wide range of uses. TAIC is usually prepared by the polymerization reaction of allyl chloride and cyanate, and the TAIC product is obtained by extraction and separation in the later stage of the polymerization reaction. However, during the process operation, part of the TAIC product will enter the flushing water to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/06
Inventor 孙亚兵荣少鹏赵泽华陆素洁张艳边琳
Owner NANJING UNIV
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