Feasibility Analysis of Removal of Alkaloids from Processing Wastewater of Aconiti Radix by Flocculation
10.13422/j.cnki.syfjx.20190449
- VernacularTitle: 絮凝法去除川乌炮制废水中生物碱类成分的可行性分析
- Author:
Jian-ping YI
1
;
Yu-ming CHI
1
;
Dong-ying LI
1
;
Hong-yu ZHANG
2
;
You-wei CUI
2
Author Information
1. Beijing Zhongyan Tongrentang Pharmaceutical Research and Development Co. Ltd., Beijing 100079, China
2. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
- Publication Type:Research Article
- Keywords:
Aconiti Radix;
processing wastewater;
flocculants;
alkaloids;
biotoxicity;
chemical oxygen demand;
orthogonal test
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2019;25(4):134-139
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the removal effect of 5 kinds of common flocculants on 6 kinds of toxic alkaloids in processing wastewater of Aconiti Radix. Method: HPLC was employed to determine contents of 6 kinds of alkaloids in the processing wastewater of Aconiti Radix before and after flocculation.The mobile phase consisted of acetonitrile-tetrahydrofuran(25:15)-0.1 mol·L-1 ammonium acetate solution(each 1 L contains 0.5 mL of glacial acetic acid) for gradient elution, volume flow rate was 1.0 mL·min-1, detection wavelength was 235 nm.The removal characteristics and effects of five common flocculants of ferric chloride, aluminum sulfate, polymeric ferric sulfate, polyaluminum chloride/polyacrylamide(PAC/PAM) and sodium polyacrylate were compared and preliminarily optimized. Result: The 5 kinds of flocculants had certain selectivity for different types of alkaloids, and the removal of 6 kinds of alkaloids showed obvious differences.Among them, the PAC/PAM attenuated relative superiority, when the pH 6, adding amount of 0.25 g·L-1 and PAC-PAM dosing ratio of 30:1, comprehensive removal effect was relatively good, removal rates of mesaconitine and hypaconitine was 85.4%and 58.3%, respectively. Conclusion: The flocculation method can be used as a pretreatment process to reduce the toxicity of processing wastewater of Aconiti Radix.
