Work

A Comparative Study on Various Pretreatment Methods of Anaerobic Digestion Piggery Effluent for Microalgae Cultivation

Year: 2025

Type: article

Abstract: Anaerobic digestion piggery effluent (ADPE), dark brown with high turbidity and ammonium, inhibits algal growth and requires pretreatment for cultivation. This study compared various physical/biological pretreatment methods for microalgae cultivation. The results showed that the strategy of 10%ADPE fungal cultivation (10%AF) pretreatment and subsequent microalgae cultivation achieved maximum specific growth rate (0.094 d−1) with productivity (0.014 g L−1 d−1) and significant nutrient removal: 100% ammonium nitrogen, 99% total nitrogen, 63% total phosphorus, 91% chemical oxygen demand. However, the pathogenic fungus used poses safety risks, requiring future screening of eco-friendly alternatives. This study demonstrated that the strategy could be a promising approach to algal biomass production and nutrient removal from ADPE.

Source: Processes

DOI: 10.3390/pr13092703

Authors: Tao He, Qi Peng, Jun Qian, Liang Wei, Pei Han, Qian Lou

Institutions: Hubei Academy of Environmental Sciences, Nanchang University, Jiangxi Academy of Sciences

Language: English

Topic: Algal biology and biofuel production

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production, Zero hunger

Open Access status: gold

Estimated APC paid: $2,896