|
|
|
Removing nitrogen and phosphorus from simulated
wastewater using algal biofilm technique |
| WEI Qun1, HU Zhiquan2, LI Genbao3, XIAO Bo4, SUN Hao4, TAO Meiping4 |
| 1.School of Environmental Science and Engineering, Huazhong University of Science and Technology；School of Chemistry and Chemical Engineering, Guangxi University; 2.School of Environmental Science and Engineering, Huazhong University of Science and Technology；State Key Laboratory of Freshwater Ecology and Biotechnology, Chinese Academy of Sciences; 3.State Key Laboratory of Freshwater Ecology and Biotechnology, Chinese Academy of Sciences; 4.School of Environmental Science and Engineering, Huazhong University of Science and Technology |
|
|
|
|
Abstract Algal biofilm technology is a new and advanced wastewater treatment method. Experimental study on removing nitrogen and phosphorus from simulated wastewater using algal biofilm under the continuous light of 3500 Lux in the batch and continuous systems was carried out in this paper to assess the performance of algal biofilm in removing nutrients. The results showed that the effect of removing nitrogen and phosphorus by algal biofilm was remarkable in the batch system. The removal efficiencies of total phosphorus (TP), total nitrogen (TN), ammonia-nitrogen (NH3-N), and chemical oxygen demand (COD) reached 98.17%, 86.58%, 91.88%, and 97.11%, respectively. In the continuous system, hydraulic retention time (HRT) of 4 days was adopted; the effects of removing TP, TN, NH3-N, and COD by algal biofilm were very stable. During a run of 24 days, the removal efficiencies of TP, TN, NH3-N, and COD reached 95.38%, 83.93%, 82.38%, and 92.31%, respectively. This study demonstrates the feasibility of removing nitrogen and phosphorus from simulated wastewater using algal biofilm.
|
|
Issue Date: 05 December 2008
|
|
| 1 |
Aziz M A, Ng W J . Industrial wastewater treatmentusing an activated algae-reactor. WaterScience and Technology, 1993, 28(7): 71–76
|
| 2 |
Rupert J C, Paul J M, Valerie J S . Wastewater nutrient removal by marine microalgae grownon a corrugated raceway. Water Research, 1997, 31(7): 1701–1707.
doi:10.1016/S0043-1354(96)00093-0
|
| 3 |
Hammouda O, Gaber A, Abdel-Raouf N . Microalgae and wastewater treatment. Ecotoxicology and Environmental Safety, 1995, 31: 205–210.
doi:10.1006/eesa.1995.1064
|
| 4 |
Han S Q, Zhang Z H, Yan S H . Present situation and developmental trend of wastewatertreatment and eutrophication waters purification with alga technology. Agro-Environment and Development, 2000, 63(1): 13–16 (in Chinese)
|
| 5 |
Huang X F, Chi J P, He S L, Li X D, Yang D H, Zhou Q . Treatmentof domestic wastewater with high-rate algal pond in rural areas. China Water and Wastewater, 2006, 22(5): 35–39 (in Chinese)
|
| 6 |
Martínez M E, Sánchez S, Jiménez J M, Yousfi F El, Muñoz L . Nitrogen and phosphorus removalfrom urban wastewater by the microalga Scenedesumusobliquus. Bioresource Technology, 2000, 73: 263–272.
doi:10.1016/S0960-8524(99)00121-2
|
| 7 |
Tam N F Y, Wong Y S . Effect of immobilized microalgalbead concentrations on wastewater nutrient removal. Environmental Pollution, 2000, 107: 145–151.
doi:10.1016/S0269-7491(99)00118-9
|
| 8 |
Oswald W J . Ponds in the twenty-first century. WaterScience and Technology, 1995, 31: 1–8.
doi:10.1016/0273-1223(95)00487-8
|
| 9 |
Kaya V M, Picard G . Stability of chitosan gelas entrapment matrix of viable Scenedesmusbicellularis cells immobilized on screens for tertiarytreatment of wastewater. Bioresource Technology, 1996, 56: 147–155.
doi:10.1016/0960-8524(96)00013-2
|
| 10 |
Pizarro C, Kebede-Westhead E, Mulbry W . Nitrogen and phosphorus removal rates using small algalturfs grown with dairy manure. Journalof Applied Phycology, 2002, 14(6): 469–473.
doi:10.1023/A:1022338722952
|
| 11 |
Lu F R, Yang H B, Li Y M . Study on the N, P purification ability of Chlorella. Journalof Biology, 2003, 20(2): 25–26 (in Chinese)
|
| 12 |
Xing L Z, Zhang X Y, Zhang B, Zhang Y H .A preliminarystudy on eliminating nitrogen and phosphorus from artificial wastewaterby immobilized bacteria-algae. EnvironmentalScience & Technology, 2006, 29(1): 33–34 (in Chinese)
|
| 13 |
Ling X H, Kuang Q J, Qiu C G, Hu Z Y . Removal efficiencyof nitrogen and phosphorus in wastewater by two species of algae. Journal of Wuhan University (Natural Science Edition), 2006, 52(8): 487–491 (in Chinese)
|
| 14 |
State EnvironmentalProtection Administration of China. . Methods for Monitoring andAnalysis of Water and Wastewater (4th ed). Beijing: China Environmental SciencePress, 2002 (in Chinese)
|
| 15 |
Li F, Xing L Z, Yan C L, An Y . Influence ofenvironmental factors on removal of nitrogen and phosphorus by microalgae. Journal of Shandong Jianzhu University, 2006, 21(3): 268–272 (in Chinese)
|
| 16 |
Nurdogan Y, Oswald W J . Enhanced nutrient removalin high-rate ponds. Water Science and Technology, 1995, 31(12): 33–43.
doi:10.1016/0273-1223(95)00490-E
|
| 17 |
Balley F G . Advanced integrated waste-water pond systems for nitrogen removal. Water Science and Technology, 1996, 33(7): 207–217.
doi:10.1016/0273-1223(96)00356-3
|
| 18 |
GB 18918-2002. . DischargeStandard of Pollutants for Municipal Wastewater Treatment Plant. Beijing: State Environmental Protection Administration of China, 2002 (in Chinese)
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
