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Entrapped mixed microorganisms to treat organic wastewater from food industry

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Abstract

Limited land and insufficient technicians to operate a wastewater treatment system are main restrictions for many factories. Therefore, an ideal wastewater treatment method for a small or land-limited factory must possess merits such as high performance efficiency, high organic loading rate, little odor, simple operation, easy maintenance, and little land required (simultaneously). An entrapment technique to immobilize mixed microorganisms to treat organic wastewater, which was developed in the present work, possesses these characteristics. This project was done on a laboratory scale. The microorganisms were activated sludge (an undefined mixture of microorganisms obtained directly from a domestic wastewater treatment plan) and the mixed microorganisms were immobilized in cellulose triacetate by means of an entrapment technique to treat organic wastewater from food industry. After wastewater was treated by this system, the SCOD (soluble COD) removal efficiency of 81% evaluated samples exceeded 80% in 1.5 ± 0.9 g SCOD/L/d of the volumetric loading rate and 7–10 h for the hydraulic retention time. This wastewater treatment method can be applied to other organic industrial wastewater.

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Authors and Affiliations

  1. Institute of Public Health, College of Public Health, National Taiwan University, # 1445, No. 1, Sec. 1,Jen-Ai Rd., Taipei, Taiwan, R.O.C.

    Jin-Huei Hsu & Yi-Chang Lin

  2. Dept. of Agricultural Engineering, University of Hawaii at Manoa, Honolulu, Hawaii

    Ping-Yi Yang

Authors
  1. Jin-Huei Hsu
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  2. Yi-Chang Lin
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  3. Ping-Yi Yang
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Hsu, JH., Lin, YC. & Yang, PY. Entrapped mixed microorganisms to treat organic wastewater from food industry. Appl Biochem Biotechnol 59, 125–134 (1996). https://doi.org/10.1007/BF02787814

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  • DOI: https://doi.org/10.1007/BF02787814

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