Comparative evaluation of cyanide removal by adsorption, biodegradation, and simultaneous adsorption and biodegradation (SAB) process using Bacillus cereus and almond shell

被引：0
作者：
Dwivedi, Naveen [1 ,2 ]
Balomajumder, Chandrajit [3 ]
Mondal, Prasenjit [3 ]
机构：
[1] SD Coll Engn & Technol, Dept Biotechnol, Muzaffarnagar 251001, India
[2] Uttarakhand Tech Univ, Fac Biotechnol, Dehra Dun 248007, Uttar Pradesh, India
[3] Indian Inst Technol, Dept Chem Engn, Roorkee 247667, Uttar Pradesh, India
来源：
JOURNAL OF ENVIRONMENTAL BIOLOGY | 2016年 / 37卷 / 04期
关键词：
Almond shell; Bacillus cereus; Biodegradation; Cyanide; Cyanidase; SAB process; BEARING WASTE-WATER; ACTIVATED CARBON; METAL CYANIDES; DEGRADATION; BIOSORPTION; EFFLUENT; COPPER;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present study aimed to investigate the removal efficiency of cyanide from contaminated water by adsorption, biodegradation and simultaneous adsorption and biodegradation (SAB) process individually in a batch reactor. Adsorption was achieved by using almond shell granules and biodegradation was conducted with suspended cultures of Bacill us cereus, whereas SAB process was carried out using Bacillus cereus and almond shell in a batch reactor. The effect of agitation time, pH, and initial cyanide concentration on the %removal ofcyanide has been discussed, Under experimental conditions, optimum removal was obtained at pH 7 with agitation time of 48 hrs and temperature of 35 degrees C. Cyanide was utilized by bacteria as sole source of nitrogen for growth. The removal efficiencies of cyanide by adsorption, biodegradation, and SAB were found to be 91.38%, 95,87%, and 99.63%, respectively, at initial cyanide concentration of 100 mg l(-1). The removal efficiency of SAB was found to be better as compared to that of biodegradation and adsorption alone.
引用
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页码：551 / 556
页数：6
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