Wastewater treatment, reuse and recycle in an acrylic fiber industry using pilot scale membrane bioreactor process | |
| Author | Songkeart Phattarapattamawong |
| Call Number | AIT Thesis no.EV-07-49 |
| Subject(s) | Bioreactors Acrylic fiber industry--Waste disposal |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | This study was focused on the investigation of the possible treatment and reuse of treated wastewater front an acrylic fiber industry in a pilot scale membrane bioreactor process. The study program involved treatability study, reuse and recycle assessment of treated water and cost-benefit analysis. Treatability of the pilot scale package plant was conducted in two phases. Phase I involved membrane filtration experiment with effluent from activated sludge, combined wastewater and polymer stream. Phase II involved membrane bioreactor experiment with spinning wastewater. Phase 1, membrane filtration process was nnl with each wastewater in batch operation. Each type of wastewater was run for three hatches and the running time for each batch was four hours. The investigation revealed that the average efficiencies of COD and TKN removal for the three batches with effluent from activated sludge were 49.7 % and 18.3 % respectively. The average efficiencies of COD and TKN removal for the three batches with combined wastewater were 26.3 % and 24.6 % respectively. The polymer wastewater, average efficiency of COD removal for the three batches was 17.6 % while average efficiency of TKN removal for the three batches was 29.4 %. In phase II, the membrane bioreactor process was operated with spinning wastewater for 42 days. It achieved up to 851,10 COD removal and 66% TKN removal respectively. Permeate of the membrane could meet the standards of discharge. The study verified that treated water quality from membrane bioreactor process could be used as make up water in turbine generator cooling towers. The study showed that the use of membrane bioreactor was estimated to save water collsuillption in cooling towers to approximately 89 %. Furthermore, MBR was also considered to be more economical and environmentally sustainable than the conventional methods (AS) |
| Year | 2007 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Annachhatre, Ajit P. |
| Examination Committee(s) | Chongrak Polprasert;Nowarat Coowanitwong. |
| Scholarship Donor(s) | Thailand (HM Queen) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |