| Title | Biological Desulfurization of Tannery Effluent Using Hybrid Linear Flow Channel Reactors |
|---|---|
| ID_Doc | 7966 |
| Authors | Horn, EJ; Oyekola, OO; Welz, PJ; van Hille, RP |
| Title | Biological Desulfurization of Tannery Effluent Using Hybrid Linear Flow Channel Reactors |
| Year | 2022 |
| Published | Water, 14, 1 |
| Abstract | The tanning process generates a saline effluent with high residual organics, sulfate and sulfide concentrations. The transition from a linear to circular economy requires reimagining of waste streams as potential resources. The organics in tannery effluent have the potential to be converted to renewable energy in the form of biogas if inhibitors to anaerobic digestion are removed. Hybrid linear flow channel reactors inoculated with culture-enriched halophilic sulfate reducing bacteria from saline environments were evaluated as a novel pretreatment step prior to anaerobic digestion for the concurrent removal of sulfur species and resource recovery (elemental sulfur and biogas). During continuous operation of a 4-day hydraulic retention time, the reactors were capable of near-complete sulfide oxidation (>97%) and a sulfate reduction efficiency of 60-80% with the formation of a floating sulfur biofilm containing elemental sulfur. Batch anaerobic digestion tests showed no activity on untreated tannery effluent, while the pretreated effluent yielded 130 mL methane per gram COD consumed. |
| https://www.mdpi.com/2073-4441/14/1/32/pdf?version=1640571814 |
Similar Articles
| ID | Score | Article |
|---|---|---|
29168
|
Welz, PJ; De Jonge, N; Lilly, M; Kaira, W; Mpofu, AB Integrated biological system for remediation and valorization of tannery wastewater: Focus on microbial communities responsible for methanogenesis and sulfidogenesis(2024) | |
| 9342
|
Ngobeni, PV; Mpofu, AB; Ranjan, A; Welz, PJ A Critical Review of Systems for Bioremediation of Tannery Effluent with a Focus on Nitrogenous and Sulfurous Species Removal and Resource Recovery(2024)Processes, 12.0, 7 | |
| 23973
|
Lundquist, L; Baldwin, SA Novel Two-stage Biochemical Process for Hybrid Passive/Active Treatment of Mine-influenced Water(2022)Mine Water And The Environment, 41, 1 | |
| 26535
|
Massara, TM; Komesli, OT; Sozudogru, O; Komesli, S; Katsou, E A Mini Review of the Techno-environmental Sustainability of Biological Processes for the Treatment of High Organic Content Industrial Wastewater Streams(2017)Waste And Biomass Valorization, 8, 5 | |
| 18457
|
Caballero, P; Agabo-García, C; Solera, R; Parrado, J; Pérez, M Eco-energetic management of activated sludge derived from slaughterhouse wastewater treatment: pre-treatments for enhancing biogas production under anaerobic conditions(2020)Sustainable Energy & Fuels, 4.0, 10 | |
| 20829
|
Capodaglio, AG Biorefinery of Sewage Sludge: Overview of Possible Value-Added Products and Applicable Process Technologies(2023)Water, 15, 6 |