Parametric optimization of additive manufactured biocarrier submerged in sequencing batch reactor for domestic wastewater treatment

• DOI: 10.1016/j.heliyon.2023.e14840
• Publication Date: 2023-03-25T19:24:58Z
• Authors: Azmatullah Noor; Shamsul Rahman Mo...; Lavania Baloo; Augustine Chioma ...; Ahmad Hussaini Ja...; Aiban Abdulhakim ...; Najib Mohammed Ya...; Tarique Ahmad; Mohammad Sadique ...; Abdullahi Haruna ...
• Keywords: Batch reactor; Sequencing batch reactor

The high nutrient concentration in domestic wastewater effluent can endanger the aquatic life via eutrophication. Thus, research have been carried out to prevent harm life. In regard biofilm reactors successful by far with few limitations. Bio-carrier fabrication of desired shape is one Recently, invention additive manufacturing (AM) object made it feasible fabricate shape. this study manufactured bio‒carrier (AMB) was printed using AM technique, surface area volume ratio as well density higher than water. submerged attach growth sequencing batch reactor (SAGSBBR) for organic and removal from (DWW) conducted determine optimum filling (FR) cycle time (CT) response methodology (RSM) CT ranging between 12 h 24 FR 0 20%. maximum chemical oxygen demand (COD), ammonia-nitrogen (NH4+‒N), total phosphorus (TP) 96.8 mg/L, 93.32 88.89 mg/L respectively, which achieved attached sequential 10% (SAGSBBR‒10). optimization determined optimal solution be 17.07 12.38% desirability 0.987. predicted mean responses were 96.64%, 94.40% 89.94% COD removal, NH4+‒N TP respectively. rate biomass attachment at first stage SAGSBBR‒10 SAGSBBR‒20 about 11.39 mg/carrier.d 8.64 mg/carrier.d, whereas highest accumulation 98.27 mg/carrier 80.15 assist us achieve sustainable development goal (SDG) 6.