Pilot study on the upgrading configuration of UASB-MBBR with two carriers: Treatment effect,sludge reduction and functional microbial identification |
| |
| Affiliation: | 1. Department of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an, 710048, China;2. Shandong Banhor Environmental Protection Equipment Co. Ltd., Linyi, 276017, China;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;2. College of Environment, Hohai University, Nanjing 210098, China;1. Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via di Biasio 43, 03043, Cassino, Italy;2. Department of Mathematics and Applications Renato Caccioppoli, University of Naples “Federico II”, Via Cintia, Complesso Monte S. Angelo, 80126, Napoli, Italy;3. Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38122, Trento, Italy;1. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia;2. Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia;3. Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China;4. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China;5. School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;1. Department of Sustainable Development, Environmental Science and Engineering, Royal Institute of Technology (KTH), Teknikringen 76, 100-44 Stockholm, Sweden;2. IVL Swedish Environmental Institute, Valhallavägen 81, 114 28 Stockholm, Sweden;1. COPPE, Chemical Engineering Program, Federal University of Rio de Janeiro, Cidade Universitária, 21941-972 Rio de Janeiro, RJ, Brazil;2. Veolia Water Technologies – AnoxKaldnes, Klosterängsvägen 11A, 226 47 Lund, Sweden |
| |
| Abstract: | Two kinds of biocarriers were adopted and a combined process of “AMC (Anaerobic microorganism carrier)-UASB and PBG (Porous bio-gel)-MBBR” was operated at the pilot scale for the treatment of real textile wastewater. The influence mechanism of the two carriers on the start-up, pollutant removal and sludge reduction were investigated within 118 days of operation. The dominant functional bacteria in anaerobic and aerobic systems were identified by high-throughput sequencing, and the possible ways and related mechanisms of nutrient removal and sludge reduction were analyzed based on the data. 37.0 ± 7.5 % and 53 ± 12.7 % of COD removal efficiencies were achieved in anaerobic system and aerobic system, respectively. Ammonia nitrogen concentration decreased from 20 to 45 to 3.49 ± 0.54 mg/L after treatment. An anaerobe was found to be closely related to color removal, which existed in both anaerobic and aerobic systems, achieving 84.0 % of color removal. With the operation of the system, the sludge yield decreased gradually. The sludge yields of anaerobic and aerobic systems were calculated individually and compared with similar studies. Aging biofilms were characterized to explore the factors associated with biofilm renewal. |
| |
| Keywords: | Biocarrier Textile wastewater UASB Polyurethane foam cubes MBBR |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
