Ecologically engineered system (EES) designed to integrate floating, emergent and submerged macrophytes for the treatment of domestic sewage and acid rich fermented-distillery wastewater: Evaluation of long term performance

被引：34

作者：

Mohan, S. Venkata ^{[1
]}

Mohanakrishna, G. ^{[1
]}

Chiranjeevi, P. ^{[1
]}

Peri, Dinakar ^{[1
]}

Sarma, P. N. ^{[1
]}

机构：

[1] IICT, BEEC, Hyderabad 500607, Andhra Pradesh, India

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 10期

关键词：

Volatile fatty acids (VFAs); Biohydrogen; Filter feeders; Color; Chemical oxygen demand (COD); CONSTRUCTED WETLANDS; BIOHYDROGEN PRODUCTION; REMOVAL; PLANTS; MEDIA; FOOD;

D O I：

10.1016/j.biortech.2009.12.027

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

An ecologically engineered system (EES) was designed to mimic the natural cleansing functions of wetlands to bring about wastewater treatment. EES consisted of three tanks containing diverse biota viz., aquatic macrophytes, submerged plants, emergent plants and filter feeders connected in series. The designed system was evaluated for 216 days by operating in continuous mode (20 1/day) to treat both sewage (DS) and fermented-distillery wastewater (FDW, from hydrogen producing bioreactor). Floating macrophyte system (Tank 1) was more effective in removing COD and nitrates. Submerged and emergent integrated macrophyte system (Tank 2) showed an effective removal of volatile fatty acids (VFAs) along with COD. Filter-feeding system (Tank 3) visualized the removal of COD, VFA, turbidity and color. On the whole the system can treat effectively DS (COD, 68.06%; nitrate, 22.41%; turbidity, 59.81%) and FDW (COD, 72.92%; nitrate, 23.15%; color, 46.0%). The designed EES can be considered as an economical approach for the treatment of both sewage and fermented wastewaters. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3363 / 3370

页数：8