Anaerobic fermentation is an important biotechnology that can convert organic matter in wastewater into volatile fatty acids (VFAs),which can be used as biofuels or for chemical synthesis.To improve the efficiency of anaerobic fermentation and the yield of volatile fatty acids,exogenous additives are usually dosed into the fermentation system.This study aims to establish an effective model to evaluate the effect of exogenous additives and optimize the anaerobic fermentation process.Based on indicators such as unit price,dosage,and acid production of exogenous additives,relevant data from actual additive application were collected;the comprehensive weights of each evaluation indicator were calculated using the analytic hierarchy process (AHP) and the CRITIC weighting method;finally,the evaluation results of the model were obtained through the comprehensive weight formula.
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