Enhancing the production of volatile fatty acids by potassium permanganate from wasted sewage sludge: A batch test experiment

被引：3

作者：

Mineo, Antonio ^{[1
]}

Cosenza, Alida ^{[1
]}

Ni, Bing-Jie ^{[2
]}

Mannina, Giorgio ^{[1
]}

机构：

[1] Palermo Univ, Engn Dept, Viale Sci ed 8, I-90128 Palermo, Italy

[2] Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

来源：

HELIYON | 2023年 / 9卷 / 11期

关键词：

Acidogenic fermentation; Bio solid management; Circular economy in the water sector; Potassium permanganate; Waste activated sludge; PRIMARY SEDIMENTATION SLUDGE; ACTIVATED-SLUDGE; FOOD WASTE; FERMENTATION; DISINTEGRATION; PERFORMANCE; MECHANISMS;

D O I：

10.1016/j.heliyon.2023.e21957

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Recovering resources from wastewater treatment is vital for the transition from a linear to a circular economy model in the water sector. Volatile Fatty Acids (VFAs) are valuable products among the possible recovered resources. This study investigates the influence of potassium permanganate (KMnO4) addition during acidogenic fermentation of waste activated sludge for enhancing VFAs production. Specifically, different fermentation batch tests with and without KMnO4 addition were carried out using two distinctive sewage sludges as feedstocks. Results showed that KMnO4 addition increased the VFAs yield up to 144 and 196 mgCOD/g VSS for the two sludges. When KMnO4 was used as pre-treatment, 55 % of sCOD were VFAs. This latter result was mainly debited to the recalcitrant organics' disruption promoted by the oxidative permanganate ability.

引用

页数：9

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