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      레이저에 의한 폐활성슬러지의 전처리에 관한 기초연구 = The Basic Study on the Pretreatment of Waste Activated Sludge by Laser Irradiation

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      https://www.riss.kr/link?id=A82694256

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      다국어 초록 (Multilingual Abstract)

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      The objective of this study have been carried out to investigate the solubilization and optimum operation of waste activated sludge by laser for sewage sludge reduction.
      The concentration of waste activated sludge was adjusted to 0.4%, 0.6%, 0.8%, 1.0%, 1.5% of total solids, respectively. Laser modules were used for pretreatment of waste activated sludge out to use laser module(wavelength : 635~650nm, powermax : <5mW, operating electric power : 6V) in the laser pretreatment.
      Waste activated sludge was evaluated the temperature, pH, SCOD, SCOD/TCOD rate for the 24 hours.
      The results showed that SCOD/TCOD rates were increased at the low concentration of total solids, because permeability characteristics of laser were largely interrupted by medium in the sludge. The SCOD/TCOD rates were gradually increased until 1hr of irradiation. At the 0.4% of TS concentration, SCOD/TCOD rates were most effective by increasing sludge temperature from 20.0℃ to 26.3℃, decreased pH from 7.1 to 6.5 and increased concentration of SCOD from 58mg/L to 85mg/L.
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      The objective of this study have been carried out to investigate the solubilization and optimum operation of waste activated sludge by laser for sewage sludge reduction. The concentration of waste activated sludge was adjusted to 0.4%, 0.6%, 0.8%, 1....

      The objective of this study have been carried out to investigate the solubilization and optimum operation of waste activated sludge by laser for sewage sludge reduction.
      The concentration of waste activated sludge was adjusted to 0.4%, 0.6%, 0.8%, 1.0%, 1.5% of total solids, respectively. Laser modules were used for pretreatment of waste activated sludge out to use laser module(wavelength : 635~650nm, powermax : <5mW, operating electric power : 6V) in the laser pretreatment.
      Waste activated sludge was evaluated the temperature, pH, SCOD, SCOD/TCOD rate for the 24 hours.
      The results showed that SCOD/TCOD rates were increased at the low concentration of total solids, because permeability characteristics of laser were largely interrupted by medium in the sludge. The SCOD/TCOD rates were gradually increased until 1hr of irradiation. At the 0.4% of TS concentration, SCOD/TCOD rates were most effective by increasing sludge temperature from 20.0℃ to 26.3℃, decreased pH from 7.1 to 6.5 and increased concentration of SCOD from 58mg/L to 85mg/L.

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      목차 (Table of Contents)

      • Ⅰ. 서론 1
      • Ⅱ. 실험장치 및 방법 2
      • 1. 실험재료 2
      • 2. 레이저 실험장치 3
      • 3. 실험방법 3
      • Ⅰ. 서론 1
      • Ⅱ. 실험장치 및 방법 2
      • 1. 실험재료 2
      • 2. 레이저 실험장치 3
      • 3. 실험방법 3
      • Ⅲ. 결과 및 고찰 3
      • Ⅳ. 결론 5
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