ADSORPTION OF CHROMIUM-(VI) BY A LOW-COST ADSORBENT - BIOGAS RESIDUAL SLURRY

被引：283
作者：
NAMASIVAYAM, C
YAMUNA, RT
机构：
[1] Environmental Chemistry Division, Department of Environmental Sciences, Bharathiar University, Coimbatore
来源：
CHEMOSPHERE | 1995年 / 30卷 / 03期
关键词：
BIOGAS RESIDUAL SLURRY; CR (VI); ADSORPTION ISOTHERMS; THERMODYNAMICAL PARAMETERS; PH EFFECT;
D O I：
10.1016/0045-6535(94)00418-T
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Ability of waste biogas residual slurry (BRS) to remove Cr (VI) from aqueous solutions was investigated. The influence of various parameters such as metal ion concentration, contact time, adsorbent dosage, adsorbent particle size, temperature and pH on the removal of Cr (VI) has been studied. The adsorption followed first order rate expression. The equilibrium data fit well into Langmuir and Freundlich isotherms. Adsorption was maximum at an initial pH of 1.51. Temperature studies showed that the adsorption process was endothermic in nature.
引用
收藏
页码：561 / 578
页数：18
相关论文
共 26 条
[1]   USE OF COCONUT SHELL-BASED ACTIVATED CARBON FOR CHROMIUM(VI) REMOVAL [J].
ALAERTS, GJ ;
JITJATURUNT, V ;
KELDERMAN, P .
WATER SCIENCE AND TECHNOLOGY, 1989, 21 (12) :1701-1704
[2]  
BESZEDITS S, 1988, CHROMIUM NATURAL HUM, V20, pCH9
[3]   REMOVAL OF CHROMIUM(VI) FROM DILUTE AQUEOUS-SOLUTION BY ACTIVATED CARBON [J].
HUANG, CP ;
WU, MH .
WATER RESEARCH, 1977, 11 (08) :673-679
[4]   SPECIFIC ADSORPTION OF TRACE AMOUNTS OF CALCIUM AND STRONTIUM BY HYDROUS OXIDES OF IRON AND ALUMINUM [J].
KINNIBURGH, DG ;
SYERS, JK ;
JACKSON, ML .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1975, 39 (03) :464-470
[5]   ADSORPTION OF DYES ON CHITIN .1. EQUILIBRIUM STUDIES [J].
MCKAY, G ;
BLAIR, HS ;
GARDNER, JR .
JOURNAL OF APPLIED POLYMER SCIENCE, 1982, 27 (08) :3043-3057
[6]  
NAGESH N, 1989, Indian Journal of Environmental Health, V31, P304
[7]   WASTE FE(III)/CR(III) HYDROXIDE AS ADSORBENT FOR THE REMOVAL OF CR(VI) FROM AQUEOUS-SOLUTION AND CHROMIUM PLATING INDUSTRY WASTE-WATER [J].
NAMASIVAYAM, C ;
RANGANATHAN, K .
ENVIRONMENTAL POLLUTION, 1993, 82 (03) :255-261
[8]  
NAMASIVAYAM C, 1992, J CHEM TECHNOL BIOT, V53, P153
[9]   REMOVAL OF RHODAMINE-B BY BIOGAS WASTE SLURRY FROM AQUEOUS-SOLUTION [J].
NAMASIVAYAM, C ;
YAMUNA, RT .
WATER AIR AND SOIL POLLUTION, 1992, 65 (1-2) :101-109
[10]   WASTE BANANA PITH AS ADSORBENT FOR COLOR REMOVAL FROM WASTEWATERS [J].
NAMASIVAYAM, C ;
KANCHANA, N .
CHEMOSPHERE, 1992, 25 (11) :1691-1705
123