1. Alalawy AI, Guo Z, Almutairi FM, El Rabey HA, Al-Duais MA, Mohammed GM, Almasoudi FM, Alotaibi MA, Salama ES, Abomohra AEF, Sakran MI (2021) Explication of structural variations in the bacterial and archaeal community of anaerobic digestion sludges: an insight through metagenomics. Environ Chem Eng 9:105910
2. Awasthi MK, Harirchi S, Sar T, Vs V, Rajendran K, Gomez-Garcia R, Hellwig C, Binod P, Sindhu R, Madhavan A, Kumar ANA, Kumar V, Kumar D, Zhang Z, Taherzadeh MJ (2022) Myco-biorefinery approaches for food waste valorization: present status and future prospects. Bioresour Technol 360:127592
3. Baird RB, Eaton AD, Clesceri LS (2012) Standard methods for the examination of water and wastewater. American public health association, Washington, DC
4. Cayetano RDA, Park J, Kim GB, Jung JH, Kim SH (2021) Enhanced anaerobic digestion of waste-activated sludge via bioaugmentation strategy-phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt2) analysis through hydrolytic enzymes and possible linkage to system performance. Bioresour Technol 332:125014–125023
5. Chen H, Zeng X, Zhou Y, Yang X, Lam SS, Wang D (2020) Influence of roxithromycin as antibiotic residue on volatile fatty acids recovery in anaerobic fermentation of waste activated sludge. J Haz Mat 394:122570