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Process for treating amantadine bromination waste water and mineral acid and alkali recycling through bipolar membrane electrodialysis process

A technology of bipolar membrane electrodialysis and amantadine, applied in bromine/hydrogen bromide, general water supply conservation, sulfur trioxide/sulfuric acid, etc., can solve problems such as waste of recyclable resources, environmental pollution, etc., and achieve good governance effects , uncomplicated operation, good industrial application prospects

Inactive Publication Date: 2013-05-01
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main treatment method is to mix with domestic wastewater and discharge it through biochemical treatment. This treatment method not only causes environmental pollution, but also wastes a lot of precious recyclable resources.

Method used

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  • Process for treating amantadine bromination waste water and mineral acid and alkali recycling through bipolar membrane electrodialysis process
  • Process for treating amantadine bromination waste water and mineral acid and alkali recycling through bipolar membrane electrodialysis process
  • Process for treating amantadine bromination waste water and mineral acid and alkali recycling through bipolar membrane electrodialysis process

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A method for treating amantadine bromination wastewater by bipolar membrane electrodialysis technology and recovering inorganic acids and bases is characterized by the following steps: filtering the bromination wastewater through a microporous membrane to remove suspended matter in the wastewater. When the hydrogen ion concentration of the brominated wastewater exceeds 1.5mol / L, it should be properly diluted to control the hydrogen ion concentration of the wastewater to be treated within 1.5mol / L. Pass the filtered bromination wastewater into the salt chamber of the bipolar membrane electrodialysis device, and the feed water of the acid chamber and alkali chamber of the bipolar membrane electrodialysis device is general tap water, and the feed water of the polar liquid is 1mol / L Na 2 SO 4 Solution; current density is 50-500A / m 2 , The membrane surface velocity is 2-8cm / s. The acid solution recovered by bipolar membrane electrodialysis can be further separated by disti...

Embodiment 2

[0023] Adopt 10 sets of bipolar membrane-positive membrane-negative membrane three-electrode chamber structure unit, circulate water, the salt chamber starts with brominated wastewater, the acid chamber and alkali chamber start with water, and the polar liquid is 1mol / LNa 2 SO 4 solution, the circulating water flow rate of the three-electrode chamber is 1L, the circulating water flow rate of the salt chamber is 20L / h, the circulating water flow rate of the acid chamber and alkali chamber is 15L / h, and the circulating water flow rate of the polar liquid is 40L / h. 200A / m 2 , the results are shown in Table 1.

Embodiment 3

[0025] 5 sets of bipolar membrane-positive membrane-cathode membrane three-electrode chamber structure unit are adopted, and the water is circulated. The salt chamber starts with brominated wastewater, the acid chamber and alkali chamber start with water, and the polar liquid is 1mol / LNa 2 S0 4 solution, the circulating water flow rate of the three-electrode chamber is 1L, the circulating water flow rate of the salt chamber is 15L / h, the circulating water flow rate of the acid chamber and alkali chamber is 10L / h, and the circulating water flow rate of the polar liquid is 30L / h. 200A / m 2 , the results are shown in Table 1.

[0026] Table 1 embodiment 1-3 result

[0027]

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Abstract

The invention relates to a process for treating amantadine bromination waste water and mineral acid and alkali recycling through a bipolar membrane electrodialysis process, which comprises the following steps: firstly, filtrating bromination waste water through micropore filtration film; then pumping the bromination waste water into a salt chamber of the bipolar membrane electrodialysis device, pumping tap water into an acid chamber and an alkali chamber of the bipolar membrane electrodialysis device, and pumping Na2SO4 solution into electrode liquid of the two ends of the bipolar membrane electrodialysis device; and finally, starting the bipolar membrane electrodialysis device and recycling the acid and the alkali. According to the invention, a bipolar membrane electrodialysis technology is used for the treatment of degradation-resistant amantadine bromination waste water, and realizes the recycle of the mineral acid and the alkali in waste water. The process has the following advantages: bromine irons in waste water containing bromine can be removed, the desalination rate is higher than 95 percent, the hydrogen ion concentration is decreased from 2.95 mol / L to 0.003 mol / L below, and avoids secondary contamination; the process enables the degradation-resistant pharmaceutical wastewater to become biochemical degradable organic wastewater, and emits qualified waste water after the biochemical treatment; and the control effectiveness is good, the operation is convenient, and the process has a favorable application prospect.

Description

technical field [0001] The invention relates to the treatment of strongly acidic and multi-inorganic ion wastewater and a process for recovering acid and alkali from the wastewater, which belongs to the field of wastewater treatment. technical background [0002] Amantadine, first reported by Jaekson in 1963, is the earliest antiviral drug used to inhibit influenza virus. my country started production in 1970, and the output is huge. At present, the domestic amantadine chemical synthesis production process mainly uses dicyclopentadiene as the starting material, and amantadine is obtained through isomerization, bromination, and amination. [0003] The waste water treated by this patent is the waste water produced in the bromination process section. Brominated wastewater is strongly acidic, with a high total dissolved solids content, in which the main inorganic pollutant ion is Br - , SO 3 2- , SO 4 2- 、Na + Wait. At present, the main treatment method is to mix with d...

Claims

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Application Information

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IPC IPC(8): C02F9/06C02F1/469C01B7/09C01B17/90
CPCY02A20/124
Inventor 曾萍宋永会朱鹏马印臣肖书虎谢晓琳樊杰
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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