Development and performance evaluation of an algal biofilm reactor for treatment of multiple wastewaters and characterization of biomass for diverse applications

被引：88
作者：
Choudhary, Poonam [1 ,2 ]
Prajapati, Sanjeev Kumar [3 ]
Kumar, Pushpendar [1 ]
Malik, Anushree [1 ]
Pant, Kamal K. [2 ]
机构：
[1] Indian Inst Technol IIT Delhi, Ctr Rural Dev & Technol, Appl Microbiol Lab, Hauz Khas, New Delhi 110016, India
[2] Indian Inst Technol IIT Delhi, Dept Chem Engn, Hauz Khas, New Delhi 110016, India
[3] Netaji Subhas Inst Technol Delhi, Div Biol Sci & Engn, BEBL, Dwarka Sect 3, New Delhi 110078, India
来源：
BIORESOURCE TECHNOLOGY | 2017年 / 224卷
关键词：
Nonwoven spunbond fabric; Variable strength wastewater; Net energy return (NER); Biomethane; Livestock feed supplement; Bio fertilizers; WASTE-WATER TREATMENT; NUTRIENT REMOVAL; CARBON; CULTIVATION; GROWTH; MICROALGAE;
D O I：
10.1016/j.biortech.2016.10.078
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A modified algal biofilm reactor (ABR) was developed and assessed for high biomass productivity and treatment potential using variable strength wastewaters with accumulation of specialized bioproducts. The nonwoven spun bond fabric (70 GSM) was selected as suitable biofilm support on the basis of attachment efficiency, durability and ease of harvesting. The biomass productivity achieved by ABR biofilms were 4 g m(-2) d(-1), 3.64 g m(-2) d(-1) and 3.10 g m(-2) d(-1) when grown in livestock wastewater (LSW), domestic grey water (DGW) and anaerobically digested slurry (ADS), respectively. Detailed characterization of wastewater grown biomass showed specific distribution of biomolecules into high lipid (38%) containing biomass (DGW grown) and high protein (44%) biomass (LSW and ADS grown). The feasibility assessment of ABR in terms of net energy return (>1) favored its application in an integrated system for treatment and recycling of rural wastewaters with simultaneous production of biomethane, livestock feed supplement and bio fertilizers. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：276 / 284
页数：9
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