Microalgal system for treatment of effluent from poultry litter anaerobic digestion

被引：147

作者：

Singh, Manjinder ^{[1
]}

Reynolds, David L. ^{[1
]}

Das, Keshav C. ^{[1
]}

机构：

[1] Univ Georgia, Dept Biol & Agr Engn, Biorefining & Carbon Cycling Program, Athens, GA 30602 USA

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 23期

关键词：

Mixotrophy; Biomass; Nutrient removal; Poultry litter; Microalgae; WASTE-WATER; NITROGEN; RECOVERY; PHOSPHORUS; NUTRIENT; REMOVAL; BIOMASS; PROTEIN; BIOGAS;

D O I：

10.1016/j.biortech.2011.09.037

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The potential of mixotrophic microalgae to utilize poultry litter anaerobic digester (AD) effluent (PLDE) as nutritional growth medium was evaluated. Three algal strains viz. Chlorella minutissima, Chlorella sorokiniana and Scenedesmus bijuga and their consortium showed significant biomass productivity in 6% (v/v) concentration of PLDE in deionized water. Multiple booster dosage of PLDE supported better growth relative to a single dose PLDE. The maximum biomass productivity of 76 mg L-1 d(-1) was recorded. The biomass was rich in protein (39% w/w) and carbohydrates (22%) while lipids (<10%) were low, making it most suitable as an animal feed supplement. The mixotrophic algae showed sustainable growth against variations in PLDE composition in different AD batches, thus proving to be a suitable candidate for large scale wastewater treatment with concomitant production of renewable biomass feedstock for animal feed and bioenergy applications. Published by Elsevier Ltd.

引用

页码：10841 / 10848

页数：8

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