Hybrid technology combining;
physicochemical and biological process;
Solid state fermentation;
Coagulation of textile dyes;
Decolorization;
Composting;
POLYCYCLIC AROMATIC-HYDROCARBONS;
WASTE-WATER;
CONTAMINATED SOIL;
REMOVAL;
BIOREMEDIATION;
DEGRADATION;
BIODEGRADATION;
DECOLORIZATION;
PRETREATMENT;
ADSORPTION;
D O I:
10.1016/j.biortech.2014.10.137
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
Dye sludge generation is major drawback of coagulation process. Efficient hybrid technology by combining coagulation and solid state fermentation (SSF) has capacity to solve generated dye sludge problem. Coagulation of 100 mg/L Reactive Red 120 (RR120) using ZnCl2 showed 99% color removal. Mixture of textile dyes (MTD) and textile wastewater (TW) showed 96% and 98% ADMI (American Dye Manufacturing Institute) removal after coagulation by ZnCl2. 92% and 94% ADMI removal from MTD and TW dye sludge and 96% decolorization of RR120 sludge was observed respectively by developed microbial consortium (DCM) in 72 h under SSF. Scale up of coagulation process by coagulation reactor (CR) having 50 L capacity operated for 30 min/cycle. CR showed average 94% ADMI removal from TW in 10 successive cycles. Scale up of SSF composting bioreactor (CB) showed complete dye removal from dye sludge obtained from CR (500 L of TW) in 30 days. (C) 2014 Elsevier Ltd. All rights reserved.
机构:
Univ Hong Kong, Res Ctr Urban Environm Technol & Management, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R ChinaUniv Hong Kong, Res Ctr Urban Environm Technol & Management, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
机构:
Univ Hong Kong, Res Ctr Urban Environm Technol & Management, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R ChinaUniv Hong Kong, Res Ctr Urban Environm Technol & Management, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China