12 Vol. 8 No Chinese Journal of Environmental Engineering Dec UASB A

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1 8 1 Vol. 8 No Chinese Journal of Environmental Engineering Dec UASB 1 1 1* UASB HRT COD COD mg /L ph UASB 6 g COD / L d UASB COD 73. 5% COD 600 mg /L ph VFA 500 mg /L UASB UASB X703 A Investigation on anaerobic biodegradability of pharmaceutical wastewater and anaerobic treatment using UASB reactor Li Weicheng 1 Tian Zhe 1 Qi Weikang Niu Qigui Liu Yuyu Li YuYou Gao Yingxin 1 1. State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing China. Department of Civil and Environmental Engineering Graduate School of Engineering Tohoku University Sendai Miyagi Japan Abstract In this study anaerobic biodegradability of high strength pharmaceutical wastewater from six main departments in a pharmaceutical manufacturer was firstly evaluated by a series of batch experiments. Based on the experimental data two stage-uasbs were applied to treat the wastewater containing effluent from all manufacturing departments. The influence of organic loading rate OLR from initial 1. 0 g COD / L d to maximum 1. 0 g COD / L d on the performance of reactor was investigated through step-decreasing HRT. Influent COD was diluted to mg /L with the adjustment of ph to 6. 8 ~ Total COD removal efficiency of 73. 5% with the effluent COD of 600 mg /L was noticed at OLR of 6. 0 g COD / L d maximum OLR for practical engineering application. Satisfactory organic compound removal efficiency during the long term run indicted the feasibility of two-stage UASBs for treatment of this kind of pharmaceutical wastewater effluent. Key words pharmaceutical wastewater anaerobic biodegradability UASB reactor % AA hnkf014@ yahoo. com * gyx@ rcees. ac. cn

2 1 UASB 5157 UASB Fig. 1 Schematic diagram of batch experiment on methane production UASB 3 mol /L NaOH g VSS /L Table 1 Quality of main departments effluent and volume of discharge per day 1 / 35 ~ 38 m 3 /d ph COD mg /L UASB Fig. Schematic diagram of the two stage UASB COD ~ mg /L50 ml g VSS /L 30 ml 1. 3 g COD 1. 5 g NaH- COD ph METTLER CO 3 ph 6. 9 ~ 7. 0 TOLEDO FE 0 ph VFA 35 3% NaOH H S CO UASB 3 1 d 3 UASB UASB mm 6 L 190 ml

3 COD /COD 6. 3% UASB 6 g COD / L d ml ml Fig. 3 3 Methane production in the batches with time 1 UASB 1 g COD / L d 1 UASB 4 50 d 0 ~ 30 d 1 g COD / L d g COD / L d HRT 10 d 5 d COD 64. 5% 30 ~ 100 d HRT 1 g COD / L d HRT a 4 b COD 6 g COD / L d 60 ~ 70 d COD 48. 3% 1 g COD / L d 80 ~ 100 d COD 38. % COD HRT ml 1 L / L d 101 ml 30% 6 g COD / L d 6 L / L d 35% g COD / L d 64 ml 4 d g COD / L d 7. 5 g COD / 3- L d 9. 9 g COD / L d4 d e VFA 450 mg /L VFA 305 ph c COD 6 g 168 ml 60. 4% COD / L d ph. 1 UASB 1 17 COD SO H H mg /L mg /L COD /S = 11 S + H O + OH - UASB COD /S > 10 VFA 500 mg /L ~ 10 d COD 500 ~ mg /L 6 g COD / L d 4 UASB 0 d ph 6. 9 ~ g COD 1. 5 g NaHCO 3. 3 UASB UASB 1 1 UASB COD 40 UASB 1 ph 6. 9 ~ 7. 1 UASB COD UASB 1 HRT OLR 5 a 5 d HRT UASB COD 38. 8% ~

4 1 UASB 5159 Fig. 4 4 UASB 1 Performance of UASB 1 with the stepwise increase of OLR Fig. 5 5 UASB Performance of UASB with the stepwise increase of OLR 47. 6% 500 mg /L ph 0. 5 L / L d 5 1 UASB e UASB VFA 5 c 1

5 UASB 6 g COD / L d tical wastewater by airfloatation-hydrolytic acidification-aerobic process. Environmental Engineering UASB COD 18 in Chinese 73. 5% COD 7 Jin Y. Z. Zhang Y. F. Li W. Experimental study on micro-electrolysis technology for pharmaceutical wastewater 600 mg /L 3 treatment. Journal of Zhejiang University Science Segura Y. Martínez F. Melero J. A. Effective pharmaceutical wastewater degradation by Fenton oxidation with ze ro-valent iron. Applied Catalysis B Environmental Balcioglu I. A. tker M. Treatment of pharmaceutical 308 wastewater containing antibiotics by O 3 and O 3 /H O processes. Chemosphere UASB COD al. Thermophilic degradation of phenolic compounds in mg /L UASB lab scale hybrid up flow anaerobic sludge blanket reactors. Journal of Hazardous Materials g COD / L d COD 73. 5% COD 600 mg /L 11 Chen Z. Q. Wang H. C. Chen Z. B. et al. Performance and model of a full-scale up-flow anaerobic sludge blanket UASB to treat the pharmaceutical wastewater containing 6-APA and amoxicillin. Journal of Hazardous Ji L. X. Analysis of the pharmaceutical wastewater treatment technology. Sichuan Chemical Industry Coskun T. Kabuk H. A. Varinca K. B. et al. Antibiotic fermentation broth treatment by a pilot upflow anaerobic sludge bed reactor and kinetic modeling. Biore in Chinese source Technology Tang C. H. Zheng P. Chen T. T. et al. Enhanced nitrogen removal from pharmaceutical wastewater Using Wang D. Y. Chen W. Mei P. Research progress of phar- SBA-ANAMMOX process. Water Research maceutical wastewater treatment technology. Applied Chemical Industry in Chinese 3 Enick O. V. Moore M. M. Assessing the assessments Pharmaceuticals in the environments. Environmental Impact Assessment Review Chen X. P. Mi Z. K. Physico-chemical treatment of pharmaceutical wastewater technology and progress. Anhui Medical and Pharmaceutical Journal in Chinese Zheng H. L. Long T. R. Yuan Z. X. Study on coagulation pretreatment of the wastewater produced the traditional 10 Sreekanth D. Sivaramakrishna D. Himabindu V. et Materials Parkin G. F. Lynch N. A. Kuo W. et al. Interaction between sulfate reducers and methanogens fed acetate and propionate. Research Journal of the Water Pollution Control Federation Vavilin V. A. Vasiliev V. B. Rytov S. V. et al. Self-oscillating coexistence of methanogens and sulphate-reducers under hydrogen sulfide inhibition and the ph-regulating effect. Bioresource Technology Hazrati H. Shayegan J. Optimizing OLR and HRT in a. UASB reactor for pretreating high-strength municipal wastewater. Chemical Engineering Communications du Preez L. A. Odendaal J. P. Maree J. P. et al. Bio- Chinese medicine. Technology of Water Treatment 00 logical removal of sulphate from industrial effluents using in Chinese producer gas as energy source. Environmental Technolo gy Li X. D. Feng Q. Y. Yu H. F. Treatment of pharmaceu- 00

Biological Phosphorus Removal Activated Sludge Process in Warm Climates

Biological Phosphorus Removal Activated Sludge Process in Warm Climates CaoYe Shi Publishing London* New York Contents Preface Acknowledgements About the author Nomenclature ix xi xiii xv Chapter 1 General